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Volume 15, issue 17
Biogeosciences, 15, 5287–5313, 2018
https://doi.org/10.5194/bg-15-5287-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-5287-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 5287–5313, 2018
https://doi.org/10.5194/bg-15-5287-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-5287-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Reviews and syntheses 31 Aug 2018
Reviews and syntheses | 31 Aug 2018
Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions
Michael M. Loranty et al.
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Elizabeth E. Webb, Kathryn Heard, Susan M. Natali, Andrew G. Bunn, Heather D. Alexander, Logan T. Berner, Alexander Kholodov, Michael M. Loranty, John D. Schade, Valentin Spektor, and Nikita Zimov
Biogeosciences, 14, 4279–4294, https://doi.org/10.5194/bg-14-4279-2017, https://doi.org/10.5194/bg-14-4279-2017, 2017
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Permafrost soils store massive amounts of C, yet estimates of soil C storage in this region are highly uncertain, primarily due to undersampling at all spatial scales; circumpolar soil C estimates lack sufficient continental spatial diversity, regional intensity, and replication at the field-site level. We aim to reduce the uncertainty of regional C estimates by providing a comprehensive assessment of vegetation, active-layer, and permafrost C stocks in a watershed in northeast Siberia, Russia.
Yonghong Yi, John S. Kimball, Jennifer D. Watts, Susan M. Natali, Donatella Zona, Junjie Liu, Masahito Ueyama, Hideki Kobayashi, Walter Oechel, and Charles E. Miller
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-182, https://doi.org/10.5194/bg-2020-182, 2020
Preprint under review for BG
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We developed a remote sensing driven permafrost carbon model at 1-km to evaluate soil respiration sensitivity to recent snow cover changes across Alaska. Results indicate earlier snow melt enhances soil respiration throughout the growing season and reduces annual carbon uptake, while early cold-season soil respiration is closely linked to the number of snow-free days after surface freezes. These results confirm the critical control of snow cover on annual and seasonal boreal-Arctic carbon cycle.
Hang Wen, Julia Perdrial, Benjamin W. Abbott, Susana Bernal, Rémi Dupas, Sarah E. Godsey, Adrian Harpold, Donna Rizzo, Kristen Underwood, Thomas Adler, Gary Sterle, and Li Li
Hydrol. Earth Syst. Sci., 24, 945–966, https://doi.org/10.5194/hess-24-945-2020, https://doi.org/10.5194/hess-24-945-2020, 2020
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Lateral carbon fluxes from terrestrial to aquatic systems remain central uncertainties in determining ecosystem carbon balance. This work explores how temperature and hydrology control production and export of dissolved organic carbon (DOC) at the catchment scale. Results illustrate the asynchrony of DOC production, controlled by temperature, and export, governed by flow paths; concentration–discharge relationships are determined by the relative contribution of shallow versus groundwater flow.
Olli Peltola, Timo Vesala, Yao Gao, Olle Räty, Pavel Alekseychik, Mika Aurela, Bogdan Chojnicki, Ankur R. Desai, Albertus J. Dolman, Eugenie S. Euskirchen, Thomas Friborg, Mathias Göckede, Manuel Helbig, Elyn Humphreys, Robert B. Jackson, Georg Jocher, Fortunat Joos, Janina Klatt, Sara H. Knox, Natalia Kowalska, Lars Kutzbach, Sebastian Lienert, Annalea Lohila, Ivan Mammarella, Daniel F. Nadeau, Mats B. Nilsson, Walter C. Oechel, Matthias Peichl, Thomas Pypker, William Quinton, Janne Rinne, Torsten Sachs, Mateusz Samson, Hans Peter Schmid, Oliver Sonnentag, Christian Wille, Donatella Zona, and Tuula Aalto
Earth Syst. Sci. Data, 11, 1263–1289, https://doi.org/10.5194/essd-11-1263-2019, https://doi.org/10.5194/essd-11-1263-2019, 2019
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Here we develop a monthly gridded dataset of northern (> 45 N) wetland methane (CH4) emissions. The data product is derived using a random forest machine-learning technique and eddy covariance CH4 fluxes from 25 wetland sites. Annual CH4 emissions from these wetlands calculated from the derived data product are comparable to prior studies focusing on these areas. This product is an independent estimate of northern wetland CH4 emissions and hence could be used, e.g. for process model evaluation.
Andrew M. Cunliffe, George Tanski, Boris Radosavljevic, William F. Palmer, Torsten Sachs, Hugues Lantuit, Jeffrey T. Kerby, and Isla H. Myers-Smith
The Cryosphere, 13, 1513–1528, https://doi.org/10.5194/tc-13-1513-2019, https://doi.org/10.5194/tc-13-1513-2019, 2019
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Episodic changes of permafrost coastlines are poorly understood in the Arctic. By using drones, satellite images, and historic photos we surveyed a permafrost coastline on Qikiqtaruk – Herschel Island. We observed short-term coastline retreat of 14.5 m per year (2016–2017), exceeding long-term average rates of 2.2 m per year (1952–2017). Our study highlights the value of these tools to assess understudied episodic changes of eroding permafrost coastlines in the context of a warming Arctic.
Kang Wang, Elchin Jafarov, Irina Overeem, Vladimir Romanovsky, Kevin Schaefer, Gary Clow, Frank Urban, William Cable, Mark Piper, Christopher Schwalm, Tingjun Zhang, Alexander Kholodov, Pamela Sousanes, Michael Loso, and Kenneth Hill
Earth Syst. Sci. Data, 10, 2311–2328, https://doi.org/10.5194/essd-10-2311-2018, https://doi.org/10.5194/essd-10-2311-2018, 2018
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Ground thermal and moisture data are important indicators of the rapid permafrost changes in the Arctic. To better understand the changes, we need a comprehensive dataset across various sites. We synthesize permafrost-related data in the state of Alaska. It should be a valuable permafrost dataset that is worth maintaining in the future. On a wider level, it also provides a prototype of basic data collection and management for permafrost regions in general.
Gustaf Granath, Håkan Rydin, Jennifer L. Baltzer, Fia Bengtsson, Nicholas Boncek, Luca Bragazza, Zhao-Jun Bu, Simon J. M. Caporn, Ellen Dorrepaal, Olga Galanina, Mariusz Gałka, Anna Ganeva, David P. Gillikin, Irina Goia, Nadezhda Goncharova, Michal Hájek, Akira Haraguchi, Lorna I. Harris, Elyn Humphreys, Martin Jiroušek, Katarzyna Kajukało, Edgar Karofeld, Natalia G. Koronatova, Natalia P. Kosykh, Mariusz Lamentowicz, Elena Lapshina, Juul Limpens, Maiju Linkosalmi, Jin-Ze Ma, Marguerite Mauritz, Tariq M. Munir, Susan M. Natali, Rayna Natcheva, Maria Noskova, Richard J. Payne, Kyle Pilkington, Sean Robinson, Bjorn J. M. Robroek, Line Rochefort, David Singer, Hans K. Stenøien, Eeva-Stiina Tuittila, Kai Vellak, Anouk Verheyden, James Michael Waddington, and Steven K. Rice
Biogeosciences, 15, 5189–5202, https://doi.org/10.5194/bg-15-5189-2018, https://doi.org/10.5194/bg-15-5189-2018, 2018
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Peat constitutes a long-term archive for climate reconstruction by using the isotopic composition of carbon and oxygen. We analysed isotopes in two peat moss species across North America and Eurasia. Peat (moss tissue) isotope composition was predicted by soil moisture and isotopic composition of the rainwater but differed between species. Our results suggest that isotope composition can be used on a large scale for climatic reconstructions but that such models should be species-specific.
Alex Mavrovic, Alexandre Roy, Alain Royer, Bilal Filali, François Boone, Christoforos Pappas, and Oliver Sonnentag
Geosci. Instrum. Method. Data Syst., 7, 195–208, https://doi.org/10.5194/gi-7-195-2018, https://doi.org/10.5194/gi-7-195-2018, 2018
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To improve microwave satellite and airborne observation products in forest environments, a precise and reliable estimation of the permittivity of trees is required. We developed a probe suitable to measure the permittivity of tree trunks at L band in the field. The system is easily transportable in the field, low energy consuming, operational at low temperatures and weatherproof. The permittivity of seven tree species in both frozen and thawed states was measured, showing important contrast.
Edmund M. Ryan, Kiona Ogle, Heather Kropp, Kimberly E. Samuels-Crow, Yolima Carrillo, and Elise Pendall
Geosci. Model Dev., 11, 1909–1928, https://doi.org/10.5194/gmd-11-1909-2018, https://doi.org/10.5194/gmd-11-1909-2018, 2018
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Our work evaluated the appropriateness of the common steady-state (SS) assumption, for example when partitioning soil respiration of CO2 into recently photosynthesized carbon (C) and older C. Using a new model of soil CO2 production and transport we found that the SS assumption is valid most of the time, especially in sand/silt soils. Non-SS conditions occurred mainly for the few days following large rain events in all soil types, but the non-SS period was prolonged and magnified in clay soils.
Elizabeth E. Webb, Kathryn Heard, Susan M. Natali, Andrew G. Bunn, Heather D. Alexander, Logan T. Berner, Alexander Kholodov, Michael M. Loranty, John D. Schade, Valentin Spektor, and Nikita Zimov
Biogeosciences, 14, 4279–4294, https://doi.org/10.5194/bg-14-4279-2017, https://doi.org/10.5194/bg-14-4279-2017, 2017
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Permafrost soils store massive amounts of C, yet estimates of soil C storage in this region are highly uncertain, primarily due to undersampling at all spatial scales; circumpolar soil C estimates lack sufficient continental spatial diversity, regional intensity, and replication at the field-site level. We aim to reduce the uncertainty of regional C estimates by providing a comprehensive assessment of vegetation, active-layer, and permafrost C stocks in a watershed in northeast Siberia, Russia.
Sina Muster, Kurt Roth, Moritz Langer, Stephan Lange, Fabio Cresto Aleina, Annett Bartsch, Anne Morgenstern, Guido Grosse, Benjamin Jones, A. Britta K. Sannel, Ylva Sjöberg, Frank Günther, Christian Andresen, Alexandra Veremeeva, Prajna R. Lindgren, Frédéric Bouchard, Mark J. Lara, Daniel Fortier, Simon Charbonneau, Tarmo A. Virtanen, Gustaf Hugelius, Juri Palmtag, Matthias B. Siewert, William J. Riley, Charles D. Koven, and Julia Boike
Earth Syst. Sci. Data, 9, 317–348, https://doi.org/10.5194/essd-9-317-2017, https://doi.org/10.5194/essd-9-317-2017, 2017
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Waterbodies are abundant in Arctic permafrost lowlands. Most waterbodies are ponds with a surface area smaller than 100 x 100 m. The Permafrost Region Pond and Lake Database (PeRL) for the first time maps ponds as small as 10 x 10 m. PeRL maps can be used to document changes both by comparing them to historical and future imagery. The distribution of waterbodies in the Arctic is important to know in order to manage resources in the Arctic and to improve climate predictions in the Arctic.
Wei Li, Howard E. Epstein, Zhongming Wen, Jie Zhao, Jingwei Jin, Guanghua Jing, Jimin Cheng, and Guozhen Du
Solid Earth, 8, 137–147, https://doi.org/10.5194/se-8-137-2017, https://doi.org/10.5194/se-8-137-2017, 2017
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This is an interesting piece of work and makes a nice contribution to the knowledge on how aboveground vegetation can control belowground soil properties through functional traits and functional diversity. Functional traits are the center of recent attempts to unify key ecological theories on species coexistence and assembly in communities. The results presented are valuable for understanding the relationship between species traits, functional diversity, and soil properties.
Benjamin M. Jones, Carson A. Baughman, Vladimir E. Romanovsky, Andrew D. Parsekian, Esther L. Babcock, Eva Stephani, Miriam C. Jones, Guido Grosse, and Edward E. Berg
The Cryosphere, 10, 2673–2692, https://doi.org/10.5194/tc-10-2673-2016, https://doi.org/10.5194/tc-10-2673-2016, 2016
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We combined field data collection with remote sensing data to document the presence and rapid degradation of permafrost in south-central Alaska during 1950–present. Ground temperature measurements confirmed permafrost presence in the region, but remotely sensed images showed that permafrost plateau extent decreased by 60 % since 1950. Better understanding these vulnerable permafrost deposits is important for predicting future permafrost extent across all permafrost regions that are warming.
Lei Cai, Vladimir A. Alexeev, Christopher D. Arp, Benjamin M. Jones, Anna Liljedahl, and Anne Gädeke
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2016-31, https://doi.org/10.5194/essd-2016-31, 2016
Preprint withdrawn
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This study produced a high-resolution dynamical downscaling data set for the Alaskan North Slope and surrounding areas. It helps to resolve the problem of the sparse observation over this region, where routinely and accurately measuring climatic variables is extremely difficult. This data set boosts up multiple research projects that explore the various climatic impacts over the Alaskan North Slope of the past and the future.
Lei Cai, Vladimir A. Alexeev, Christopher D. Arp, Benjamin M. Jones, Anna Liljedahl, and Anne Gädeke
The Cryosphere Discuss., https://doi.org/10.5194/tc-2016-87, https://doi.org/10.5194/tc-2016-87, 2016
Preprint withdrawn
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This paper introduces the development process of a data set that specifically made for climatic impacts research over the Alaskan North Slope. This data set can offset to some extent the sparseness of observation on spatial and temporal scales, retrieving high-resolution climatic backgrounds that enable various studies in the fields of climatology, hydrology, ecology, etc.
Zahra Thomas, Benjamin W. Abbott, Olivier Troccaz, Jacques Baudry, and Gilles Pinay
Biogeosciences, 13, 1863–1875, https://doi.org/10.5194/bg-13-1863-2016, https://doi.org/10.5194/bg-13-1863-2016, 2016
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Direct human impact on a catchment (fertilizer input, soil disturbance, urbanization) is asymmetrically linked with inherent catchment properties (geology, soil, topography), which together determine catchment vulnerability to human activity. To quantify the influence of physical, hydrologic, and anthropogenic controls on surface water quality, we used a 5-year high-frequency water chemistry data set from three contrasting headwater catchments in western France.
J. E. Vonk, S. E. Tank, P. J. Mann, R. G. M. Spencer, C. C. Treat, R. G. Striegl, B. W. Abbott, and K. P. Wickland
Biogeosciences, 12, 6915–6930, https://doi.org/10.5194/bg-12-6915-2015, https://doi.org/10.5194/bg-12-6915-2015, 2015
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We found that dissolved organic carbon (DOC) in arctic soils and aquatic systems is increasingly degradable with increasing permafrost extent. Also, DOC seems less degradable when moving down the fluvial network in continuous permafrost regions, i.e. from streams to large rivers, suggesting that highly bioavailable DOC is lost in headwater streams. We also recommend a standardized DOC incubation protocol to facilitate future comparison on processing and transport of DOC in a changing Arctic.
J. R. Larouche, B. W. Abbott, W. B. Bowden, and J. B. Jones
Biogeosciences, 12, 4221–4233, https://doi.org/10.5194/bg-12-4221-2015, https://doi.org/10.5194/bg-12-4221-2015, 2015
B. W. Abbott, J. B. Jones, S. E. Godsey, J. R. Larouche, and W. B. Bowden
Biogeosciences, 12, 3725–3740, https://doi.org/10.5194/bg-12-3725-2015, https://doi.org/10.5194/bg-12-3725-2015, 2015
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As high latitudes warm, carbon and nitrogen stored in permafrost soil will be vulnerable to erosion and transport to Arctic streams and rivers. We sampled outflow from 83 permafrost collapse features in Alaska. Permafrost collapse caused substantial increases in dissolved organic carbon and inorganic nitrogen but decreased methane concentration by 90%. Upland thermokarst may be a dominant linkage transferring carbon and nutrients from terrestrial to aquatic ecosystems as the Arctic warms.
C. D. Arp, M. S. Whitman, B. M. Jones, G. Grosse, B. V. Gaglioti, and K. C. Heim
Biogeosciences, 12, 29–47, https://doi.org/10.5194/bg-12-29-2015, https://doi.org/10.5194/bg-12-29-2015, 2015
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Beaded streams have deep elliptical pools connected by narrow runs that we show are common landforms in the continuous permafrost zone. These fluvial systems often initiate from lakes and occur predictably in headwater portions of moderately sloping watersheds. Snow capture along stream courses reduces ice thickness allowing thawed sediment to persist under most pools. Interpool thermal variability and hydrologic regimes provide important aquatic habitat and connectivity in Arctic landscapes.
L. Liu, K. Schaefer, A. Gusmeroli, G. Grosse, B. M. Jones, T. Zhang, A. D. Parsekian, and H. A. Zebker
The Cryosphere, 8, 815–826, https://doi.org/10.5194/tc-8-815-2014, https://doi.org/10.5194/tc-8-815-2014, 2014
A. Steffen, J. Bottenheim, A. Cole, T. A. Douglas, R. Ebinghaus, U. Friess, S. Netcheva, S. Nghiem, H. Sihler, and R. Staebler
Atmos. Chem. Phys., 13, 7007–7021, https://doi.org/10.5194/acp-13-7007-2013, https://doi.org/10.5194/acp-13-7007-2013, 2013
Related subject area
Earth System Science/Response to Global Change: Climate Change
Characterizing deepwater oxygen variability and seafloor community responses using a novel autonomous lander
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Foraminiferal holobiont thermal tolerance under future warming – roommate problems or successful collaboration?
Impacts of enhanced weathering on biomass production for negative emission technologies and soil hydrology
Potential predictability of marine ecosystem drivers
Is deoxygenation detectable before warming in the thermocline?
Spatio-temporal variations and uncertainty in land surface modelling for high latitudes: univariate response analysis
Microstructure and composition of marine aggregates as co-determinants for vertical particulate organic carbon transfer in the global ocean
Quantifying impacts of the 2018 drought on European ecosystems in comparison to 2003
Reviews and syntheses: How do abiotic and biotic processes respond to climatic variations in the Nam Co catchment (Tibetan Plateau)?
Simulation of factors affecting Emiliania huxleyi blooms in Arctic and sub-Arctic seas by CMIP5 climate models: model validation and selection
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Understanding the uncertainty in global forest carbon turnover
Zooplankton diel vertical migration and downward C flux into the oxygen minimum zone in the highly productive upwelling region off northern Chile
A meta-analysis of microcosm experiments shows that dimethyl sulfide (DMS) production in polar waters is insensitive to ocean acidification
Forest aboveground biomass stock and resilience in a tropical landscape of Thailand
Enhanced Weathering and related element fluxes – a cropland mesocosm approach
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Carbon-concentration and carbon-climate feedbacks in CMIP6 models, and their comparison to CMIP5 models
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Rapid environmental responses to climate-induced hydrographic changes in the Baltic Sea entrance
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Ocean acidification increases the sensitivity of and variability in physiological responses of an intertidal limpet to thermal stress
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Increasing coastal slump activity impacts the release of sediment and organic carbon into the Arctic Ocean
The pyrogeography of eastern boreal Canada from 1901 to 2012 simulated with the LPJ-LMfire model
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The influence of El Niño–Southern Oscillation regimes on eastern African vegetation and its future implications under the RCP8.5 warming scenario
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Natalya D. Gallo, Kevin Hardy, Nicholas C. Wegner, Ashley Nicoll, Haleigh Yang, and Lisa A. Levin
Biogeosciences, 17, 3943–3960, https://doi.org/10.5194/bg-17-3943-2020, https://doi.org/10.5194/bg-17-3943-2020, 2020
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Environmental exposure histories can affect organismal sensitivity to climate change and ocean deoxygenation. The natural variability of environmental conditions for nearshore deep-sea habitats is poorly known due to technological challenges. We develop and test a novel, autonomous, hand-deployable lander outfitted with environmental sensors and a camera system and use it to characterize high-frequency oxygen, temperature, and pH variability at 100–400 m as well as seafloor community responses.
Vincent Echevin, Manon Gévaudan, Dante Espinoza-Morriberón, Jorge Tam, Olivier Aumont, Dimitri Gutierrez, and François Colas
Biogeosciences, 17, 3317–3341, https://doi.org/10.5194/bg-17-3317-2020, https://doi.org/10.5194/bg-17-3317-2020, 2020
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The coasts of Peru encompass the richest fisheries in the entire ocean. It is therefore very important for this country to understand how the nearshore marine ecosystem may evolve under climate change. Fine-scale numerical models are very useful because they can represent precisely the evolution of key parameters such as temperature, water oxygenation, and plankton biomass. Here we study the evolution of the Peruvian marine ecosystem in the 21st century under the worst-case climate scenario.
Andrew H. MacDougall, Thomas L. Frölicher, Chris D. Jones, Joeri Rogelj, H. Damon Matthews, Kirsten Zickfeld, Vivek K. Arora, Noah J. Barrett, Victor Brovkin, Friedrich A. Burger, Micheal Eby, Alexey V. Eliseev, Tomohiro Hajima, Philip B. Holden, Aurich Jeltsch-Thömmes, Charles Koven, Nadine Mengis, Laurie Menviel, Martine Michou, Igor I. Mokhov, Akira Oka, Jörg Schwinger, Roland Séférian, Gary Shaffer, Andrei Sokolov, Kaoru Tachiiri, Jerry Tjiputra, Andrew Wiltshire, and Tilo Ziehn
Biogeosciences, 17, 2987–3016, https://doi.org/10.5194/bg-17-2987-2020, https://doi.org/10.5194/bg-17-2987-2020, 2020
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The Zero Emissions Commitment (ZEC) is the change in global temperature expected to occur following the complete cessation of CO2 emissions. Here we use 18 climate models to assess the value of ZEC. For our experiment we find that ZEC 50 years after emissions cease is between −0.36 to +0.29 °C. The most likely value of ZEC is assessed to be close to zero. However, substantial continued warming for decades or centuries following cessation of CO2 emission cannot be ruled out.
Doron Pinko, Sigal Abramovich, and Danna Titelboim
Biogeosciences, 17, 2341–2348, https://doi.org/10.5194/bg-17-2341-2020, https://doi.org/10.5194/bg-17-2341-2020, 2020
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Future warming threatens many marine organisms; among these are large benthic foraminifera. These symbiont-bearing protists are major carbonate producers and ecosystem engineers. To assess the relative contribution of host and symbiont algae to the holobiont thermal tolerance, we evaluated the calcification rate and photosynthetic activity under future warming scenarios.
Wagner de Oliveira Garcia, Thorben Amann, Jens Hartmann, Kristine Karstens, Alexander Popp, Lena R. Boysen, Pete Smith, and Daniel Goll
Biogeosciences, 17, 2107–2133, https://doi.org/10.5194/bg-17-2107-2020, https://doi.org/10.5194/bg-17-2107-2020, 2020
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Biomass-based terrestrial negative emission technologies (tNETS) have high potential to sequester CO2. Many CO2 uptake estimates do not include the effect of nutrient deficiencies in soils on biomass production. We show that nutrients can be partly resupplied by enhanced weathering (EW) rock powder application, increasing the effectiveness of tNETs. Depending on the deployed amounts of rock powder, EW could also improve soil hydrology, adding a new dimension to the coupling of tNETs with EW.
Thomas L. Frölicher, Luca Ramseyer, Christoph C. Raible, Keith B. Rodgers, and John Dunne
Biogeosciences, 17, 2061–2083, https://doi.org/10.5194/bg-17-2061-2020, https://doi.org/10.5194/bg-17-2061-2020, 2020
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Climate variations can have profound impacts on marine ecosystems. Here we show that on global scales marine ecosystem drivers such as temperature, pH, O2 and NPP are potentially predictable 3 (at the surface) and more than 10 years (subsurface) in advance. However, there are distinct regional differences in the potential predictability of these drivers. Our study suggests that physical–biogeochemical forecast systems have considerable potential for use in marine resource management.
Angélique Hameau, Thomas L. Frölicher, Juliette Mignot, and Fortunat Joos
Biogeosciences, 17, 1877–1895, https://doi.org/10.5194/bg-17-1877-2020, https://doi.org/10.5194/bg-17-1877-2020, 2020
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Ocean deoxygenation and warming are observed and projected to intensify under continued greenhouse gas emissions. Whereas temperature is considered the main climate change indicator, we show that in certain regions, thermocline doxygenation may be detectable before warming.
Didier G. Leibovici, Shaun Quegan, Edward Comyn-Platt, Garry Hayman, Maria Val Martin, Mathieu Guimberteau, Arsène Druel, Dan Zhu, and Philippe Ciais
Biogeosciences, 17, 1821–1844, https://doi.org/10.5194/bg-17-1821-2020, https://doi.org/10.5194/bg-17-1821-2020, 2020
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Analysing the impact of environmental changes due to climate change, e.g. geographical spread of climate-sensitive infections (CSIs) and agriculture crop modelling, may require land surface modelling (LSM) to predict future land surface conditions. There are multiple LSMs to choose from. The paper proposes a multivariate spatio-temporal data science method to understand the inherent uncertainties in four LSMs and the variations between them in Nordic areas for the net primary production.
Joeran Maerz, Katharina D. Six, Irene Stemmler, Soeren Ahmerkamp, and Tatiana Ilyina
Biogeosciences, 17, 1765–1803, https://doi.org/10.5194/bg-17-1765-2020, https://doi.org/10.5194/bg-17-1765-2020, 2020
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Marine micro-algae bind carbon dioxide, CO2. During their decay, snowflake-like aggregates form that sink, remineralize and transport organically bound CO2 to depth; this is referred to as the biological carbon pump. In our model study, we elucidate how variable aggregate composition impacts the global pattern of vertical carbon fluxes. Our mechanistic model approach advances the representation of the global biological carbon pump and promotes a more realistic projection under climate change.
Allan Buras, Anja Rammig, and Christian S. Zang
Biogeosciences, 17, 1655–1672, https://doi.org/10.5194/bg-17-1655-2020, https://doi.org/10.5194/bg-17-1655-2020, 2020
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This study compares the climatic conditions and ecosystem response of the extreme European drought of 2018 with the previous extreme drought of 2003. Using gridded climate data and satellite-based remote sensing information, our analyses qualify 2018 as the new European record drought with wide-ranging negative impacts on European ecosystems. Given the observation of forest-legacy effects in 2019 we call for Europe-wide forest monitoring to assess forest vulnerability to climate change.
Sten Anslan, Mina Azizi Rad, Johannes Buckel, Paula Echeverria Galindo, Jinlei Kai, Wengang Kang, Laura Keys, Philipp Maurischat, Felix Nieberding, Eike Reinosch, Handuo Tang, Tuong Vi Tran, Yuyang Wang, and Antje Schwalb
Biogeosciences, 17, 1261–1279, https://doi.org/10.5194/bg-17-1261-2020, https://doi.org/10.5194/bg-17-1261-2020, 2020
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Due to the high elevation, the Tibetan Plateau (TP) is affected more strongly than the global average by climate warming. As a result of increasing air temperature, several environmental processes have accelerated, such as melting glaciers, thawing permafrost and grassland degradation. We review several modern and paleoenvironmental changes forced by climate warming in the lake system of Nam Co to shape our understanding of global warming effects on current and future geobiodiversity.
Natalia Gnatiuk, Iuliia Radchenko, Richard Davy, Evgeny Morozov, and Leonid Bobylev
Biogeosciences, 17, 1199–1212, https://doi.org/10.5194/bg-17-1199-2020, https://doi.org/10.5194/bg-17-1199-2020, 2020
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We analysed the ability of 34 climate models to reproduce main factors affecting the coccolithophore Emiliania huxleyi blooms in six Arctic and sub-Arctic seas. Furthermore, we proposed a procedure of ranking and selecting these models based on the model’s skill in reproducing 10 important oceanographic, meteorological, and biochemical variables in comparison with observation data and demonstrated that the proposed methodology shows a better result than commonly used all-model averaging.
M. Rosario Lorenzo, María Segovia, Jay T. Cullen, and María T. Maldonado
Biogeosciences, 17, 757–770, https://doi.org/10.5194/bg-17-757-2020, https://doi.org/10.5194/bg-17-757-2020, 2020
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Thomas A. M. Pugh, Tim T. Rademacher, Sarah L. Shafer, Jörg Steinkamp, Jonathan Barichivich, Brian Beckage, Vanessa Haverd, Anna Harper, Jens Heinke, Kazuya Nishina, Anja Rammig, Hisashi Sato, Almut Arneth, Stijn Hantson, Thomas Hickler, Markus Kautz, Benjamin Quesada, Benjamin Smith, and Kirsten Thonicke
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-491, https://doi.org/10.5194/bg-2019-491, 2020
Revised manuscript accepted for BG
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The length of time that carbon remains in forest biomass is one of the largest uncertainties in the global carbon cycle. Estimates from six contemporary models found this time to range from 12.2 to 23.5 years in the global mean for 1985–2014. Future projections do not give consistent results, but twelve model-based hypotheses are identified, along with recommendations for pragmatic steps to test them using existing and novel observations, which would help to reduce current large uncertainty.
Pritha Tutasi and Ruben Escribano
Biogeosciences, 17, 455–473, https://doi.org/10.5194/bg-17-455-2020, https://doi.org/10.5194/bg-17-455-2020, 2020
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Vertical migration of zooplankton has rarely been studied under the effect of a variable community structure, which depending on the behavior and size of its groups can strongly alter the magnitude of C being actively taken to depth by migrants. Here, we address this issue in a highly productive upwelling system, where a high amount of zooplankton can daily move below the mixed layer despite presence of an extremely low–oxygen water and so contribute to a significant export of C to depth.
Frances E. Hopkins, Philip D. Nightingale, John A. Stephens, C. Mark Moore, Sophie Richier, Gemma L. Cripps, and Stephen D. Archer
Biogeosciences, 17, 163–186, https://doi.org/10.5194/bg-17-163-2020, https://doi.org/10.5194/bg-17-163-2020, 2020
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We investigated the effects of ocean acidification (OA) on the production of climate active gas dimethylsulfide (DMS) in polar waters. We found that polar DMS production was unaffected by OA – in contrast to temperate waters, where large increases in DMS occurred. The regional differences in DMS response may reflect natural variability in community adaptation to ambient carbonate chemistry and should be taken into account in predicting the influence of future DMS emissions on Earth's climate.
Nidhi Jha, Nitin Kumar Tripathi, Wirong Chanthorn, Warren Brockelman, Anuttara Nathalang, Raphaël Pélissier, Siriruk Pimmasarn, Pierre Ploton, Nophea Sasaki, Salvatore G. P. Virdis, and Maxime Réjou-Méchain
Biogeosciences, 17, 121–134, https://doi.org/10.5194/bg-17-121-2020, https://doi.org/10.5194/bg-17-121-2020, 2020
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Carbon stocks and dynamics are both uncertain in tropical forests, especially in Asia. We here quantify the carbon stock and recovery rate of a Thai landscape using airborne lidar and four decades of Landsat data. We show that the landscape has a high carbon stock despite its disturbance history and that secondary forests are accumulating carbon at high rate. Our study shows the potential synergy of remote sensing and field data to characterize the carbon dynamics of tropical forests.
Thorben Amann, Jens Hartmann, Eric Struyf, Wagner de Oliveira Garcia, Elke K. Fischer, Ivan Janssens, Patrick Meire, and Jonas Schoelynck
Biogeosciences, 17, 103–119, https://doi.org/10.5194/bg-17-103-2020, https://doi.org/10.5194/bg-17-103-2020, 2020
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Weathering is a major control on atmospheric CO2 at geologic timescales. Enhancement of this process can be used to actively remove CO2 from the atmosphere. Field results are still scarce and with this experiment we try to add some near-natural insights into dissolution processes. Results show CO2 sequestration potentials but also highlight the strong variability of outcomes that can be expected in natural environments. Such experiments are of the utmost importance to identify key processes.
Rachel Dietrich and Madhur Anand
Biogeosciences, 16, 4815–4827, https://doi.org/10.5194/bg-16-4815-2019, https://doi.org/10.5194/bg-16-4815-2019, 2019
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In shade-tolerant tree species, growth is not strictly related to tree age. In this study we show that novel tree ring standardization models that incorporate tree size in the year of ring formation produce more accurate chronologies than those produced by contemporary, age-based standardization models. These findings are important for accurate and reliable long-term trend reconstruction in tree ring studies in all species but are especially so for shade-tolerant species.
Vivek K. Arora, Anna Katavouta, Richard G. Williams, Chris D. Jones, Victor Brovkin, Pierre Friedlingstein, Jörg Schwinger, Laurent Bopp, Olivier Boucher, Patricia Cadule, Matthew A. Chamberlain, James R. Christian, Christine Delire, Rosie A. Fisher, Tomohiro Hajima, Tatiana Ilyina, Emilie Joetzjer, Michio Kawamiya, Charles Koven, John Krasting, Rachel M. Law, David M. Lawrence, Andrew Lenton, Keith Lindsay, Julia Pongratz, Thomas Raddatz, Roland Séférian, Kaoru Tachiiri, Jerry F. Tjiputra, Andy Wiltshire, Tongwen Wu, and Tilo Ziehn
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-473, https://doi.org/10.5194/bg-2019-473, 2019
Revised manuscript accepted for BG
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Since the pre-industrial period, land and ocean have taken up about half of the carbon emitted into the atmosphere by humans. Comparison of different earth system models with carbon cycle allows to assess how carbon uptake by land and ocean differs among models. This yields an estimate of uncertainty of our understanding of how land and ocean respond to increasing atmospheric CO2. This manuscript summarizes results from two such model intercomparisons projects.
Daniel E. Pabon-Moreno, Talie Musavi, Mirco Migliavacca, Markus Reichstein, Christine Römermann, and Miguel D. Mahecha
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-403, https://doi.org/10.5194/bg-2019-403, 2019
Revised manuscript accepted for BG
Laurie M. Charrieau, Karl Ljung, Frederik Schenk, Ute Daewel, Emma Kritzberg, and Helena L. Filipsson
Biogeosciences, 16, 3835–3852, https://doi.org/10.5194/bg-16-3835-2019, https://doi.org/10.5194/bg-16-3835-2019, 2019
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We reconstructed environmental changes in the Öresund during the last 200 years, using foraminifera (microfossils), sediment, and climate data. Five zones were identified, reflecting oxygen, salinity, food content, and pollution levels for each period. The largest changes occurred ~ 1950, towards stronger currents. The foraminifera responded quickly (< 10 years) to the changes. Moreover, they did not rebound when the system returned to the previous pattern, but displayed a new equilibrium state.
Mikkel Bennedsen, Eric Hillebrand, and Siem Jan Koopman
Biogeosciences, 16, 3651–3663, https://doi.org/10.5194/bg-16-3651-2019, https://doi.org/10.5194/bg-16-3651-2019, 2019
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Is the fraction of anthropogenically released CO2 that remains in the atmosphere increasing? Is the rate at which the ocean and land sinks take up CO2 from the atmosphere decreasing? We analyse these questions by means of a statistical dynamic multivariate model from which we estimate the unobserved trend processes together with the parameters that govern them. We find no statistical evidence of an increasing airborne fraction, but we do find statistical evidence of a decreasing sink rate.
George Roff, Jennifer Joseph, and Peter J. Mumby
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-329, https://doi.org/10.5194/bg-2019-329, 2019
Revised manuscript accepted for BG
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In recent decades, extensive mortality of reef-building corals throughout the Caribbean region has led to erosion of reef frameworks and declines in biodiversity. Using field observations, models and high-precision U-th dating, we quantified changes in structural complexity in the coral reef frameworks over the past two decades. Structural complexity was stable at reef-scales, yet bioerosion led to declines in small-scale microhabitat complexity with cascading effects on cryptic fauna.
Alexandra T. Holland, Christopher J. Williamson, Fotis Sgouridis, Andrew J. Tedstone, Jenine McCutcheon, Joseph M. Cook, Ewa Poniecka, Marian L. Yallop, Martyn Tranter, Alexandre M. Anesio, and The Black & Bloom Group
Biogeosciences, 16, 3283–3296, https://doi.org/10.5194/bg-16-3283-2019, https://doi.org/10.5194/bg-16-3283-2019, 2019
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This paper provides a preliminary data set for dissolved nutrient abundance in the Dark Zone of the Greenland Ice Sheet. This 15-year marked darkening has since been attributed to glacier algae blooms, yet has not been accounted for in current melt rate models. We conclude that the dissolved organic phase dominates surface ice environments and that factors other than macronutrient limitation control the extent and magnitude of the glacier algae blooms.
Thorben Amann and Jens Hartmann
Biogeosciences, 16, 2949–2960, https://doi.org/10.5194/bg-16-2949-2019, https://doi.org/10.5194/bg-16-2949-2019, 2019
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With the recent publication of the IPCC special report on the 1.5 °C target and increased attention on carbon dioxide removal (CDR) technologies, we think it is time to advance from the current way of looking at specific strategies to a more holistic CDR perspective, since multiple "side effects" may lead to additional CO2 uptake into different carbon pools. This paper explores potential co-benefits between terrestrial CDR strategies to facilitate a maximum CO2 sequestration effect.
Angélique Hameau, Juliette Mignot, and Fortunat Joos
Biogeosciences, 16, 1755–1780, https://doi.org/10.5194/bg-16-1755-2019, https://doi.org/10.5194/bg-16-1755-2019, 2019
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The observed decrease of oxygen and warming in the ocean may adversely affect marine ecosystems and their services. We analyse results from an Earth system model for the last millennium and the 21st century. We find changes in temperature and oxygen due to fossil fuel burning and other human activities to exceed natural variations in many ocean regions already today. Natural variability is biased low in earlier studies neglecting forcing from past volcanic eruptions and solar change.
Stefan Kruse, Alexander Gerdes, Nadja J. Kath, Laura S. Epp, Kathleen R. Stoof-Leichsenring, Luidmila A. Pestryakova, and Ulrike Herzschuh
Biogeosciences, 16, 1211–1224, https://doi.org/10.5194/bg-16-1211-2019, https://doi.org/10.5194/bg-16-1211-2019, 2019
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How fast might the arctic treeline in northern central Siberia migrate northwards under current global warming? To answer this, we newly parameterized dispersal processes in the individual-based and spatially explicit model LAVESI-WIND based on parentage analysis. Simulation results show that northernmost open forest stands are migrating at an unexpectedly slow rate into tundra. We conclude that the treeline currently lags behind the strong warming and will remain slow in the upcoming decades.
Rasoul Yousefpour, Julia E. M. S. Nabel, and Julia Pongratz
Biogeosciences, 16, 241–254, https://doi.org/10.5194/bg-16-241-2019, https://doi.org/10.5194/bg-16-241-2019, 2019
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Global forest resources are accounted for to establish their potential to sink carbon in woody biomass. Climate prediction models realize the effects of future global forest utilization rates, defined by population demand and its evolution over time. However, forest management approaches consider the supply side to realize a sustainable forest carbon stock and adapt the harvest rates to novel climate conditions. This study simulates such an adaptive sustained
yield approach.
Terhikki Manninen, Tuula Aalto, Tiina Markkanen, Mikko Peltoniemi, Kristin Böttcher, Sari Metsämäki, Kati Anttila, Pentti Pirinen, Antti Leppänen, and Ali Nadir Arslan
Biogeosciences, 16, 223–240, https://doi.org/10.5194/bg-16-223-2019, https://doi.org/10.5194/bg-16-223-2019, 2019
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The surface albedo time series CLARA-A2 SAL was used to study trends in the timing of the melting season of snow and preceding albedo value in Finland during 1982–2016 to assess climate change. The results were in line with operational snow depth data, JSBACH land ecosystem model, SYKE fractional snow cover and greening-up data. In the north a clear trend to earlier snowmelt onset, increasing melting season length, and decrease in pre-melt albedo (related to increased stem volume) was observed.
Yuan Meng, Zhenbin Guo, Susan C. Fitzer, Abhishek Upadhyay, Vera B. S. Chan, Chaoyi Li, Maggie Cusack, Haimin Yao, Kelvin W. K. Yeung, and Vengatesen Thiyagarajan
Biogeosciences, 15, 6833–6846, https://doi.org/10.5194/bg-15-6833-2018, https://doi.org/10.5194/bg-15-6833-2018, 2018
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The paper revealed a potential structural deterioration induced by ocean acidification on the shells of an ecologically and economically important oyster, which is critical to forecasting the survival and production of edible oysters in the future ocean. Importantly, this is a multidisciplinary collaboration including aquaculture, crystallography, medical and materials science, which could be applied to other biomineral systems to hierarchically analyse the impact of ocean acidification.
Dominik Thom, Werner Rammer, Rita Garstenauer, and Rupert Seidl
Biogeosciences, 15, 5699–5713, https://doi.org/10.5194/bg-15-5699-2018, https://doi.org/10.5194/bg-15-5699-2018, 2018
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Over the past decades temperate forests were a carbon (C) sink to the atmosphere. Yet the drivers of C uptake and how these affect the future carbon cycle remain uncertain. Our simulation and study revealed that the future C sink of central European forest landscapes is strongly driven by historic land use, while climate change reduces forest C uptake. Compared to land-use change, past natural disturbances (wind and bark beetles) have only marginal effects on the future carbon cycle.
Aisling Fontanini, Alexandra Steckbauer, Sam Dupont, and Carlos M. Duarte
Biogeosciences, 15, 3717–3729, https://doi.org/10.5194/bg-15-3717-2018, https://doi.org/10.5194/bg-15-3717-2018, 2018
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Invertebrate species of the Gullmar Fjord (Sweden) were exposed to four different treatments (high/low oxygen and low/high CO2) and respiration measured. Respiration responses of species of contrasting habitats and life-history strategies to single and multiple stressors was evaluated. Results show that the responses of the respiration were highly species specific as we observed both synergetic as well as antagonistic responses, and neither phylum nor habitat explained trends in respiration.
Jie Wang, Bayden D. Russell, Meng-Wen Ding, and Yun-Wei Dong
Biogeosciences, 15, 2803–2817, https://doi.org/10.5194/bg-15-2803-2018, https://doi.org/10.5194/bg-15-2803-2018, 2018
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To understand ecological impacts of CO2-induced ocean acidification and temperature rise, a key question is if organisms become more vulnerable under multiple stressors. Here we tested heart rate and gene expression levels of a limpet under varying pCO2 and temperature. Results showed that while many individuals are more vulnerable to heat stress under high CO2 and increased temperature, some animals have the ability to alter their physiology to help them survive under future conditions.
Ting Liu, Liang Wang, Xiaojuan Feng, Jinbo Zhang, Tian Ma, Xin Wang, and Zongguang Liu
Biogeosciences, 15, 1627–1641, https://doi.org/10.5194/bg-15-1627-2018, https://doi.org/10.5194/bg-15-1627-2018, 2018
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Compared to the respiration process, few studies have examined soil carbon leaching possibly enhanced by extreme precipitation events (EPEs). We show that soil carbon leaching was much higher than CO2 loss through respiration under EPEs in grassland soils through incubation experiments. The soil carbon leaching process should be incorporated into soil carbon models when estimating carbon balance in grassland ecosystems, especially considering the projected increase in EPEs with climate change.
Justine L. Ramage, Anna M. Irrgang, Anne Morgenstern, and Hugues Lantuit
Biogeosciences, 15, 1483–1495, https://doi.org/10.5194/bg-15-1483-2018, https://doi.org/10.5194/bg-15-1483-2018, 2018
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We describe the evolution of thaw slumps between 1952 and 2011 along the Yukon Coast, Canada, and calculate the contribution of the slumps to the carbon budget in this area. The number of slumps has increased by 73 % over the period. These slumps displaced more than 16 billion m3 of material and mobilized 146 t of carbon. This represents 0.6 % of the annual carbon flux released from shoreline retreat, which shows that the contribution of slumps to the nearshore carbon budget is non-negligible.
Emeline Chaste, Martin P. Girardin, Jed O. Kaplan, Jeanne Portier, Yves Bergeron, and Christelle Hély
Biogeosciences, 15, 1273–1292, https://doi.org/10.5194/bg-15-1273-2018, https://doi.org/10.5194/bg-15-1273-2018, 2018
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A vegetation model was used to reconstruct fire activity from 1901 to 2012 in relation to changes in lightning ignition, climate, and vegetation in eastern Canada's boreal forest. The model correctly simulated the history of fire activity. The results showed that fire activity is ignition limited but is also greatly affected by both climate and vegetation. This research aims to develop a vegetation model that could be used to predict the future impacts of climate changes on fire activity.
Rong Bi, Stefanie M. H. Ismar, Ulrich Sommer, and Meixun Zhao
Biogeosciences, 15, 1029–1045, https://doi.org/10.5194/bg-15-1029-2018, https://doi.org/10.5194/bg-15-1029-2018, 2018
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We observed that N : P supply ratios had the strongest effect on C : N : P stoichiometry, while temperature and pCO2 played more influential roles on PIC : POC and polyunsaturated fatty acid proportions in Emiliania huxleyi. Synergistic interactions indicated the enhanced effect of warming under nutrient deficiency and high pCO2. Simultaneous changes of elements and fatty acids should be considered when predicting future roles of E. huxleyi in biogeochemical cycles and ecological functions.
Wenmin Zhang, Martin Brandt, Xiaoye Tong, Qingjiu Tian, and Rasmus Fensholt
Biogeosciences, 15, 319–330, https://doi.org/10.5194/bg-15-319-2018, https://doi.org/10.5194/bg-15-319-2018, 2018
Lei Jiang, You-Fang Sun, Yu-Yang Zhang, Guo-Wei Zhou, Xiu-Bao Li, Laurence J. McCook, Jian-Sheng Lian, Xin-Ming Lei, Sheng Liu, Lin Cai, Pei-Yuan Qian, and Hui Huang
Biogeosciences, 14, 5741–5752, https://doi.org/10.5194/bg-14-5741-2017, https://doi.org/10.5194/bg-14-5741-2017, 2017
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The negative effects of elevated temperature (31 °C) on larval settlement of P. damicornis was greatly tempered by diurnal temperature fluctuations, whilst diel oscillations in temperature reduced the heat stress on photo-physiology of coral recruits. Although elevated temperature greatly stimulated the growth of recruits, the daytime encounters with the maximum temperature of 33 °C in the fluctuating treatment elicited a notable reduction in calcification.
Siv K. Lauvset, Jerry Tjiputra, and Helene Muri
Biogeosciences, 14, 5675–5691, https://doi.org/10.5194/bg-14-5675-2017, https://doi.org/10.5194/bg-14-5675-2017, 2017
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Solar radiation management (SRM) is suggested as a method to offset global warming and to buy time to reduce emissions. Here we use an Earth system model to project the impact of SRM on future ocean biogeochemistry. This work underscores the complexity of climate impacts on ocean primary production and highlights the fact that changes are driven by an integrated effect of many environmental drivers, which all change in different ways.
Cara A. Littlefair, Suzanne E. Tank, and Steven V. Kokelj
Biogeosciences, 14, 5487–5505, https://doi.org/10.5194/bg-14-5487-2017, https://doi.org/10.5194/bg-14-5487-2017, 2017
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This study is the first to examine how permafrost slumping affects dissolved organic carbon (DOC) mobilization in landscapes dominated by glacial tills. Unlike in previous studies, we find that slumping is associated with decreased DOC concentrations in downstream systems – an effect that appears to occur via adsorption to fine-grained sediments. This work adds significantly to our understanding of varying effects of permafrost thaw on organic carbon mobilization across diverse Arctic regions.
Yaner Yan, Xuhui Zhou, Lifeng Jiang, and Yiqi Luo
Biogeosciences, 14, 5441–5454, https://doi.org/10.5194/bg-14-5441-2017, https://doi.org/10.5194/bg-14-5441-2017, 2017
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The effects of C turnover time on ecosystem C storage have not been well explored, so we quantified the spatial variation in ecosystem C storage over time from changes in C turnover time and/or NPP. Our results showed that the terrestrial C release caused by the decrease in MTT only accounted for about 13.5 % of that due to the change in NPP uptake. However, the larger uncertainties in the spatial variation of MTT than temporal changes would lead to a greater impact on ecosystem C storage.
Istem Fer, Britta Tietjen, Florian Jeltsch, and Christian Wolff
Biogeosciences, 14, 4355–4374, https://doi.org/10.5194/bg-14-4355-2017, https://doi.org/10.5194/bg-14-4355-2017, 2017
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El Niño–Southern Oscillation (ENSO) has been identified as one of the main drivers for the interannual variability in eastern African rainfall. But we know little about its direct impact on vegetation and how it might change in the future. In this study, we quantified this relationship and predict its future under certain climate change scenarios. Results suggest that we need to consider an increase in future ENSO intensity to cover the full range of potential changes in vegetation responses.
Keith F. Lewin, Andrew M. McMahon, Kim S. Ely, Shawn P. Serbin, and Alistair Rogers
Biogeosciences, 14, 4071–4083, https://doi.org/10.5194/bg-14-4071-2017, https://doi.org/10.5194/bg-14-4071-2017, 2017
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Experiments that manipulate the temperature of plants and ecosystems are used to improve understanding of how they will respond to climate change. In logistically challenging locations passive warming using solar energy is the the only viable option for warming experiments. Unfortunately current passive warming approaches can only raise air temperature by about 1.5 °C. We have developed a novel approach that doubles the warming possible using solar energy and requires no power.
Ines Bamberger, Nadine K. Ruehr, Michael Schmitt, Andreas Gast, Georg Wohlfahrt, and Almut Arneth
Biogeosciences, 14, 3649–3667, https://doi.org/10.5194/bg-14-3649-2017, https://doi.org/10.5194/bg-14-3649-2017, 2017
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We studied the effects of summer heatwaves and drought on photosynthesis and isoprene emissions in black locust trees. While photosynthesis decreased, isoprene emission increased sharply during the heatwaves. Comparing isoprene emissions of stressed and unstressed trees at the same temperature, however, demonstrated that stressed trees emitted less isoprene than expected. This reveals that in order to predict isoprene emissions during heat waves, model parameters need to be re-evaluated.
Eleanor J. Burke, Altug Ekici, Ye Huang, Sarah E. Chadburn, Chris Huntingford, Philippe Ciais, Pierre Friedlingstein, Shushi Peng, and Gerhard Krinner
Biogeosciences, 14, 3051–3066, https://doi.org/10.5194/bg-14-3051-2017, https://doi.org/10.5194/bg-14-3051-2017, 2017
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There are large reserves of carbon within the permafrost which might be released to the atmosphere under global warming. Our models suggest this release may cause an additional global temperature increase of 0.005 to 0.2°C by the year 2100 and 0.01 to 0.34°C by the year 2300. Under climate mitigation scenarios this is between 1.5 and 9 % (by 2100) and between 6 and 16 % (by 2300) of the global mean temperature change. There is a large uncertainty associated with these results.
Jie Chen, Guoliang Xiao, Yakov Kuzyakov, G. Darrel Jenerette, Ying Ma, Wei Liu, Zhengfeng Wang, and Weijun Shen
Biogeosciences, 14, 2513–2525, https://doi.org/10.5194/bg-14-2513-2017, https://doi.org/10.5194/bg-14-2513-2017, 2017
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We conducted a field manipulation experiment by redistributing 67 % of dry-season rainfall into the wet season while keeping the annual rainfall unchanged in a subtropical forest. Soil net nitrification and N mineralization rates were decreased by 13–20 % in the dry season and increased by 50 % with an accelerated NO3 leaching in the wet season. Functional microbial gene abundance and microbial biomass were the main factors affecting the N-process responses to the rainfall seasonality changes.
Miguel Mallo, Patrizia Ziveri, P. Graham Mortyn, Ralf Schiebel, and Michael Grelaud
Biogeosciences, 14, 2245–2266, https://doi.org/10.5194/bg-14-2245-2017, https://doi.org/10.5194/bg-14-2245-2017, 2017
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Single-celled living calcareous planktic foraminifera data across the Mediterranean Sea suggest that stratification of the surface water column, food availability, temperature, and seawater carbonate chemistry are the main factors controlling their distribution and mass. Increasing temperature, salinity, surface ocean stratification, and trophic conditions could be the causes of reduced abundance, diversity and species-specific changes in calcification in planktic foraminifera.
Kimberly K. Yates, David G. Zawada, Nathan A. Smiley, and Ginger Tiling-Range
Biogeosciences, 14, 1739–1772, https://doi.org/10.5194/bg-14-1739-2017, https://doi.org/10.5194/bg-14-1739-2017, 2017
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We report regional-scale erosion of coral reef ecosystems in the Atlantic, Caribbean, and Pacific oceans determined by measuring changes in seafloor elevation. The magnitude of seafloor elevation loss has increased local sea level rise, causing water depths not predicted until near 2100, placing coastal communities at elevated and accelerating risk from hazards such as waves, storms, and tsunamis. Our results have broad implications for coastal resource and safety management.
Cited articles
Abbott, B. W. and Jones, J. B.: Permafrost collapse alters soil carbon stocks, respiration, CH4, and N2O in upland tundra, Glob. Change Biol., 21, 4570–4587, https://doi.org/10.1111/gcb.13069, 2015.
Abbott, B. W., Jones, J. B., Godsey, S. E., Larouche, J. R., and Bowden, W. B.: Patterns and persistence of hydrologic carbon and nutrient export from collapsing upland permafrost, Biogeosciences, 12, 3725–3740, https://doi.org/10.5194/bg-12-3725-2015, 2015.
Abbott, B. W., Jones, J. B., Schuur, E. A. G., Chapin III, F. S., Bowden, W. B., Bret-Harte, M. S., Epstein, H. E., Flannigan, M. D., Harms, T. K., Hollingsworth, T. N., Mack, M. C., Mcguire, A. D., Natali, S. M., Rocha, A. V., Tank, S. E., Turetsky, M. R., Vonk, J. E., Wickland, K. P., Aiken, G. R., Alexander, H. D., Amon, R. M. W., BENSCOTER, B. W., Bergeron, Y., Bishop, K., Blarquez, O., Bond-Lamberty, B., Breen, A. L., Buffam, I., Cai, Y., Carcaillet, C., Carey, S. K., Chen, J. M., Chen, H. Y. H., Christensen, T. R., Cooper, L. W., Cornelissen, J. H. C., de Groot, W. J., Deluca, T. H., Dorrepaal, E., Fetcher, N., Finlay, J. C., Forbes, B. C., French, N. H. F., Gauthier, S., Girardin, M. P., Goetz, S. J., Goldammer, J. G., Gough, L., Grogan, P., Guo, L., Higuera, P. E., Hinzman, L., Hu, F. S., Hugelius, G., Jafarov, E. E., Jandt, R., Johnstone, J. F., Karlsson, J., Kasischke, E. S., Kattner, G., Kelly, R., Keuper, F., Kling, G. W., Kortelainen, P., Kouki, J., Kuhry, P., Laudon, H., Laurion, I., Macdonald, R. W., Mann, P. J., Martikainen, P. J., McClelland, J. W., Molau, U., Oberbauer, S. F., Olefeldt, D., Pare, D., Parisien, M.-A., Payette, S., Peng, C., Pokrovsky, O. S., Rastetter, E. B., Raymond, P. A., Raynolds, M. K., Rein, G., Reynolds, J. F., Robards, M., Rogers, B. M., Schädel, C., Schaefer, K., Schmidt, I. K., Shvidenko, A., Sky, J., Spencer, R. G. M., Starr, G., Striegl, R. G., Teisserenc, R., Tranvik, L. J., Virtanen, T., Welker, J. M., and Zimov, S. A.: Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment, Environ. Res. Lett., 11, 1–13, https://doi.org/10.1088/1748-9326/11/3/034014, 2016.
Ackerman, D., Griffin, D., Hobbie, S. E., and Finlay, J. C.: Arctic shrub growth trajectories differ across soil moisture levels, Glob. Change Biol., 69, 130–139, https://doi.org/10.1111/gcb.13677, 2017.
Alexander, H. D. and Mack, M. C.: A Canopy Shift in Interior Alaskan Boreal Forests: Consequences for Above-and Belowground Carbon and Nitrogen Pools during Post-fire Succession, Ecosystems, 19, 98–114, https://doi.org/10.1007/s10021-015-9920-7, 2015.
Alexander, H. D., Mack, M. C., Goetz, S. J., Beck, P. S. A., and Belshe, E. F.: Implications of increased deciduous cover on stand structure and aboveground carbon pools of Alaskan boreal forests, Ecosphere, 3, 1–21, https://doi.org/10.1890/ES11-00364.1, 2012a.
Alexander, H. D., Mack, M. C., Goetz, S. J., Loranty, M. M., Beck, P. S., Earl, K., Zimov, S., Davydov, S., and Thompson, C. C.: Carbon Accumulation Patterns During Post-Fire Succession in Cajander Larch (Larix cajanderi) Forests of Siberia, Ecosystems, 15, 1065–1082, https://doi.org/10.1007/s10021-012-9567-6, 2012b.
Alexander, H. D., Natali, S. M., Loranty, M. M., Ludwig, S. M., Spektor, V. V., Davydov, S., Zimov, N. S., Trujillo, I., and Mack, M. C.: Impacts of increased soil burn severity on larch forest regeneration on permafrost soils of far northeastern Siberia, Forest Ecol. Manag., 417, 144–153, https://doi.org/10.1016/j.foreco.2018.03.008, 2018.
Algesten, G., Sobek, S., Bergström, A. K., Ågren, A., Tranvik, L. J., and Jansson, M.: Role of lakes for organic carbon cycling in the boreal zone, Glob. Change Biol., 10, 141–147, 2004.
Anthony, K. M. W., Zimov, S. A., Grosse, G., Jones, M. C., Anthony, P. M., III, F. S. C., Finlay, J. C., Mack, M. C., Davydov, S., Frenzel, P., and Frolking, S.: A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch, Nature, 511, 452–456, https://doi.org/10.1038/nature13560, 2014.
Auerbach, N. A., Walker, M. D., and Walker, D. A.: Effects of Roadside Disturbance on Substrate and Vegetation Properties in Arctic Tundra, Ecol. Appl., 7, 218–235, 1997.
Baldocchi, D., Kelliher, F., Black, T., and Jarvis, P.: Climate and vegetation controls on boreal zone energy exchange, Glob. Change Biol., 6, 69–83, 2000.
Baltzer, J. L., Veness, T., Chasmer, L. E., Sniderhan, A. E., and Quinton, W. L.: Forests on thawing permafrost: fragmentation, edge effects, and net forest loss, Glob. Change Biol., 20, 824–834, https://doi.org/10.1111/gcb.12349, 2014.
Barber, V. A., Juday, G. P., and Finney, B. P.: Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress, Nature, 405, 668–673, https://doi.org/10.1139/x88-010, 2000.
Bardgett, R. D., Mommer, L., and De Vries, F. T.: Going underground: root traits as drivers of ecosystem processes, Trends Ecol. Evol., 29, 692–699, https://doi.org/10.1016/j.tree.2014.10.006, 2014.
Barrett, K., Rocha, A. V., van de Weg, M. J., and Shaver, G.: Vegetation shifts observed in arctic tundra 17 years after fire, Remote Sens. Lett., 3, 729–736, https://doi.org/10.1080/2150704X.2012.676741, 2012.
Beck, P. S. A. and Goetz, S. J.: Satellite observations of high northern latitude vegetation productivity changes between 1982 and 2008: ecological variability and regional differences, Environ. Res. Lett., 6, 045501, https://doi.org/10.1088/1748-9326/7/2/029501, 2011.
Beck, P. S. A., Juday, G. P., Alix, C., Barber, V. A., Winslow, S. E., Sousa, E. E., Heiser, P., Herriges, J. D., and Goetz, S. J.: Changes in forest productivity across Alaska consistent with biome shift, Ecol. Lett., 14, 373–379, https://doi.org/10.1111/j.1461-0248.2011.01598.x, 2011.
Belshe, E. F., Schuur, E. A. G., and Grosse, G.: Quantification of upland thermokarst features with high resolution remote sensing, Environ. Res. Lett., 8, 035016, https://doi.org/10.1088/1748-9326/8/3/035016, 2013.
Beringer, J., Chapin, F. S., Thompson, C. C., and Mcguire, A. D.: Surface energy exchanges along a tundra-forest transition and feedbacks to climate, Agr. Forest Meteorol., 131, 143–161, https://doi.org/10.1016/j.agrformet.2005.05.006, 2005.
Berner, L. T., Beck, P. S. A., Bunn, A. G., Lloyd, A. H., and Goetz, S. J.: High-latitude tree growth and satellite vegetation indices: Correlations and trends in Russia and Canada (1982–2008), J. Geophys. Res., 116, G01015, https://doi.org/10.1029/2010jg001475, 2011.
Berner, L. T., Beck, P. S. A., Loranty, M. M., Alexander, H. D., Mack, M. C., and Goetz, S. J.: Cajander larch (Larix cajanderi) biomass distribution, fire regime and post-fire recovery in northeastern Siberia, Biogeosciences, 9, 3943–3959, https://doi.org/10.5194/bg-9-3943-2012, 2012.
Berner, L. T., Beck, P. S. A., Bunn, A. G., and Goetz, S. J.: Plant response to climate change along the forest-tundra ecotone in northeastern Siberia, Glob. Change Biol., 19, 3449–3462, https://doi.org/10.1111/gcb.12304, 2013.
Betts, A. K. and Ball, J.: Albedo over the boreal forest, J. Geophys. Res., 102, 28901–28909, 1997.
Betts, A. K., Goulden, M., and Wofsy, S.: Controls on evaporation in a boreal spruce forest, J. Climate, 12, 1601–1618, 1999.
Bewley, D., Pomeroy, J., and Essery, R.: Solar Radiation Transfer Through a Subarctic Shrub Canopy, Arct. Antarct. Alp. Res., 39, 365–374, 2007.
Bhatt, U., Walker, D., Raynolds, M., Bieniek, P., Epstein, H., Comiso, J., Pinzon, J., Tucker, C., and Polyakov, I.: Recent Declines in Warming and Vegetation Greening Trends over Pan-Arctic Tundra, Remote Sensing, 5, 4229–4254, https://doi.org/10.3390/rs5094229, 2013.
Bjerke, J. W., Karlsen, S. R., Høgda, K. A., Malnes, E., Jepsen, J. U., Lovibond, S., Vikhamar-Schuler, D., and Tømmervik, H.: Record-low primary productivity and high plant damage in the Nordic Arctic Region in 2012 caused by multiple weather events and pest outbreaks, Environ. Res. Lett., 9, 084006, https://doi.org/10.1088/1748-9326/9/8/084006, 2014.
Blok, D., Heijmans, M., Schaepman-Strub, G., Kononov, A., Maximov, T., and Berendse, F.: Shrub expansion may reduce summer permafrost thaw in Siberian tundra, Glob. Change Biol., 16, 1296–1305, 2010.
Blok, D., Heijmans, M. M. P. D., Schaepman-Strub, G., Ruijven, J., Parmentier, F. J. W., Maximov, T. C., and Berendse, F.: The Cooling Capacity of Mosses: Controls on Water and Energy Fluxes in a Siberian Tundra Site, Ecosystems, 14, 1055–1065, https://doi.org/10.1007/s10021-011-9463-5, 2011a.
Blok, D., Schaepman-Strub, G., Bartholomeus, H., Heijmans, M. M., Maximov, T. C., and Berendse, F.: The response of Arctic vegetation to the summer climate: relation between shrub cover, NDVI, surface albedo and temperature, Environ. Res. Lett., 6, 035502, https://doi.org/10.1088/1748-9326/6/3/035502, 2011b.
Blume-Werry, G., Wilson, S. D., Kreyling, J., and Milbau, A.: The hidden season: growing season is 50 % longer below than above ground along an arctic elevation gradient, New Phytol., 209, 978–986, https://doi.org/10.1111/nph.13655, 2015.
Boike, J., Roth, K., and Overduin, P. P.: Thermal and hydrologic dynamics of the active layer at a continuous permafrost site (Taymyr Peninsula, Siberia), Water Resour. Res., 34, 355–363, https://doi.org/10.1029/97WR03498, 1998.
Boike, J., Wille, C., and Abnizova, A.: Climatology and summer energy and water balance of polygonal tundra in the Lena River Delta, Siberia, J. Geophys. Res., 113, G03025, https://doi.org/10.1029/2007JG000540, 2008.
Bond-Lamberty, B., Rocha, A. V., Calvin, K., Holmes, B., Wang, C., and Goulden, M. L.: Disturbance legacies and climate jointly drive tree growth and mortality in an intensively studied boreal forest, Glob. Change Biol., 20, 216–227, https://doi.org/10.1111/gcb.12404, 2013.
Bonfils, C. J. W., Phillips, T. J., Lawrence, D. M., Cameron-Smith, P., Riley, W. J., and Subin, Z. M.: On the influence of shrub height and expansion on northern high latitude climate, Environ. Res. Lett., 7, 015503, https://doi.org/10.1088/1748-9326/7/1/015503, 2012.
Bret-Harte, M. S., Mack, M. C., Shaver, G. R., Huebner, D. C., Johnston, M., Mojica, C. A., Pizano, C., and Reiskind, J. A.: The response of Arctic vegetation and soils following an unusually severe tundra fire, Philos. T. Roy. Soc. B, 368, 20120490–20120490, https://doi.org/10.1111/j.1365-2745.2008.01378.x, 2013.
Briggs, M. A., Walvoord, M. A., and McKenzie, J. M.: New permafrost is forming around shrinking Arctic lakes, but will it last?, Geophys. Res. Lett., 41, 1585–1592, https://doi.org/10.1002/2014gl059251, 2014.
Brown, D., Jorgenson, M. T., Douglas, T. A., Romanovsky, V. E., Kielland, K., Hiemstra, C. A., Euskirchen, E. S., and Ruess, R. W.: Interactive effects of wildfire and climate on permafrost degradation in Alaskan lowland forests, J. Geophys. Res.-Biogeo., 120, 1619–1637, https://doi.org/10.1002/2015jg003033, 2015.
Brown, J., Ferrians, O. J., Heginbottom, J. A., and Melinikov, E. S.: Circum-arctic map of permafrost and ground ice conditions, available at: https://nsidc.org/data/ggd318 (last access: 29 August 2018), 1998.
Bunn, A. G. and Goetz, S. J.: Trends in satellite-observed circumpolar photosynthetic activity from 1982 to 2003: The influence of seasonality, cover type, and vegetation density, Earth Interact., 10, 1–19, 2006.
Burn, C. R.: The response (1958–1997) of permafrost and near-surface ground temperatures to forest fire, Takhini River valley, southern Yukon Territory, Can. J. Earth Sci., 35, 184–199, https://doi.org/10.1139/e97-105, 1998.
Cable, W. L., Romanovsky, V. E., and Jorgenson, M. T.: Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach, The Cryosphere, 10, 2517–2532, https://doi.org/10.5194/tc-10-2517-2016, 2016.
Chapin III, F. S., Eugster, W., McFadden, J., Lynch, A., and Walker, D.: Summer differences among arctic ecosystems in regional climate forcing, J. Climate, 13, 2002–2010, 2000a.
Chapin III, F. S., McGuire, A., Randerson, J., Pielke, R., Baldocchi, D., Hobbie, S., Roulet, N., Eugster, W., Kasischke, E., and Rastetter, E.: Arctic and boreal ecosystems of western North America as components of the climate system, Glob. Change Biol., 6, 211–223, 2000b.
Chapin III, F. S., Sturm, M., Serreze, M. C., McFadden, J. P., Key, J. R., Lloyd, A. H., McGuire, A. D., Rupp, T. S., Lynch, A. H., Schimel, J. P., Beringer, J., Chapman, W. L., Epstein, H. E., Euskirchen, E. S., Hinzman, L. D., Jia, G., Ping, C.-L., Tape, K. D., Thompson, C. D. C., Walker, D. A., and Welker, J. M.: Role of land-surface changes in Arctic summer warming, Science, 310, 657–660, https://doi.org/10.1126/science.1117368, 2005.
Christiansen, C. T., Mack, M. C., DeMarco, J., and Grogan, P.: Decomposition of Senesced Leaf Litter is Faster in Tall Compared to Low Birch Shrub Tundra, Ecosystems, 170, 809–816, https://doi.org/10.1007/s10021-018-0240-6, 2018.
Commane, R., Lindaas, J., Benmergui, J., Luus, K. A., Chang, R. Y. W., Daube, B. C., Euskirchen, E. S., Henderson, J. M., Karion, A., Miller, J. B., Miller, S. M., Parazoo, N. C., Randerson, J. T., Sweeney, C., Tans, P., Thoning, K., Veraverbeke, S., Miller, C. E., and Wofsy, S. C.: Carbon dioxide sources from Alaska driven by increasing early winter respiration from Arctic tundra, P. Natl. Acad. Sci. USA, 114, 5361–5366, https://doi.org/10.1073/pnas.1618567114, 2017.
Comyn-Platt, E., Hayman, G., huntingford, C., Chadburn, S. E., Burke, E. J., Harper, A. B., Collins, W. J., Webber, C. P., Powell, T., Cox, P. M., Gedney, N., and Sitch, S.: Carbon budgets for 1.5 and 2 °C targets lowered by natural wetland and permafrost feedbacks, Nat. Geosci., 11, 568–573, https://doi.org/10.1038/s41561-018-0174-9, 2018.
Cornelissen, J. H., Van Bodegom, P. M., Aerts, R., Callaghan, T. V., Van Logtestijn, R. S., Alatalo, J., Stuart Chapin, F., Gerdol, R., Gudmundsson, J., Gwynn-Jones, D., Hartley, A. E., Hik, D. S., Hofgaard, A., Jónsdóttir, I. S., Karlsson, S., Klein, J. A., Laundre, J., Magnusson, B., Michelsen, A., Molau, U., Onipchenko, V. G., Quested, H. M., Sandvik, S. M., Schmidt, I. K., Shaver, G. R., Solheim, B., Soudzilovskaia, N. A., Stenström, A., Tolvanen, A., Totland, Ø., Wada, N., Welker, J. M., and Zhao, X.: Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes, Ecol. Lett., 10, 619–627, https://doi.org/10.1111/j.1461-0248.2007.01051.x, 2007.
Crampton, C. B.: A study of the dynamics of hummocky microrelief in the Canadian north, Can. J. Earth Sci., 14, 639–649, 1977.
Curasi, S. R., Loranty, M. M., and Natali, S. M.: Water track distribution and effects on carbon dioxide flux in an eastern Siberian upland tundra landscape, Environ. Res. Lett., 11, 1–12, https://doi.org/10.1088/1748-9326/11/4/045002, 2016.
de Grandpré, I., Fortier, D., and Stephani, E.: Degradation of permafrost beneath a road embankment enhanced by heat advected in groundwater, Can. J. Earth Sci., 49, 953–962, https://doi.org/10.1016/0148-9062(79)90657-0, 2012.
Domine, F., Barrere, M., Sarrazin, D., Morin, S., and Arnaud, L.: Automatic monitoring of the effective thermal conductivity of snow in a low-Arctic shrub tundra, The Cryosphere, 9, 1265–1276, https://doi.org/10.5194/tc-9-1265-2015, 2015.
Douglas, T. A., Jones, M. C., Hiemstra, C. A., and Arnold, J. R.: Sources and sinks of carbon in boreal ecosystems of interior Alaska: A review, Elem. Sci. Anth., 2, 000032, https://doi.org/10.12952/journal.elementa.000032, 2014.
Douglas, T. A., Jorgenson, M. T., Brown, D. R. N., Campbell, S. W., Hiemstra, C. A., Saari, S. P., Bjella, K., and Liljedahl, A. K.: Degrading permafrost mapped with electrical resistivity tomography, airborne imagery and LiDAR, and seasonal thaw measurements, Geophysics, 81, WA71–WA85, https://doi.org/10.1190/geo2015-0149.1, 2016.
Eaton, A. K., Rouse, W. R., Lafleur, P. M., Marsh, P., and Blanken, P. D.: Surface Energy Balance of the Western and Central Canadian Subarctic: Variations in the Energy Balance among Five Major Terrain Types, J. Climate, 14, 3692–3703, https://doi.org/10.1175/1520-0442(2001)014<3692:sebotw>2.0.co;2, 2001.
Elmendorf, S. C., Henry, G. H. R., Hollister, R. D., Björk, R. G., Bjorkman, A. D., Callaghan, T. V., Collier, L. S., Cooper, E. J., Cornelissen, J. H. C., Day, T. A., Fosaa, A. M., Gould, W. A., Grétarsdóttir, J., Harte, J., Hermanutz, L., Hik, D. S., Hofgaard, A., Jarrad, F., Jónsdóttir, I. S., Keuper, F., Klanderud, K., Klein, J. A., Koh, S., Kudo, G., Lang, S. I., Loewen, V., May, J. L., Mercado, J., Michelsen, A., Molau, U., Myers-Smith, I. H., Oberbauer, S. F., Pieper, S., Post, E., Rixen, C., Robinson, C. H., Schmidt, N. M., Shaver, G. R., Stenström, A., Tolvanen, A., Totland, Ø., Troxler, T., Wahren, C.-H., Webber, P. J., Welker, J. M., and Wookey, P. A.: Global assessment of experimental climate warming on tundra vegetation: heterogeneity over space and time, Ecol. Lett., 15, 164–175, https://doi.org/10.1111/j.1461-0248.2011.01716.x, 2012a.
Elmendorf, S. C., Henry, G. H. R., Hollister, R. D., Björk, R. G., Boulanger-Lapointe, N., Cooper, E. J., Cornelissen, J. H. C., Day, T. A., Dorrepaal, E., Elumeeva, T. G., Gill, M., Gould, W. A., Harte, J., Hik, D. S., Hofgaard, A., Johnson, D. R., Johnstone, J. F., Jónsdóttir, I. S., Jorgenson, J. C., Klanderud, K., Klein, J. A., Koh, S., Kudo, G., Lara, M., Lévesque, E., Magnusson, B., May, J. L., Mercado-Dýìaz, J. A., Michelsen, A., Molau, U., Myers-Smith, I. H., Oberbauer, S. F., Onipchenko, V. G., Rixen, C., Schmidt, N. M., Shaver, G. R., Spasojevic, M. J., Þórhallsdóttir, Þ. E., Tolvanen, A., Troxler, T., Tweedie, C. E., Villareal, S., Wahren, C.-H., Walker, X., Webber, P. J., Welker, J. M., and Wipf, S.: Plot-scale evidence of tundra vegetation change and links to recent summer warming, Nat. Clim. Change, 2, 1–5, https://doi.org/10.1038/nclimate1465, 2012b.
Essery, R. and Pomeroy, J.: Vegetation and topographic control of wind-blown snow distributions in distributed and aggregated simulations for an Arctic tundra basin, J. Hydrometeorol., 5, 735–744, https://doi.org/10.1175/1525-7541(2004)005<0735:vatcow>2.0.co;2, 2004.
Eugster, W., Rouse, W., Pielke, R., Sr, Joseph, P., Mcfadden, D., Baldocchi, T., Kittel, F., Chapin, S., Liston, G. E., Vidale, P. L., Vaganov, E., and Chambers, S.: Land-atmosphere energy exchange in Arctic tundra and boreal forest: available data and feedbacks to climate, Glob. Change Biol., 6, 84–115, 2000.
Fan, Z., Neff, J. C., Harden, J. W., Zhang, T., Veldhuis, H., Czimczik, C. I., Winston, G. C., and O'Donnell, J. A.: Water and heat transport in boreal soils: Implications for soil response to climate change, Sci. Total Environ., 409, 1836–1842, https://doi.org/10.1016/j.scitotenv.2011.02.009, 2011.
Fauria, M. M., Helle, T., and Niva, A.: Removal of the lichen mat by reindeer enhances tree growth in a northern Scots pine forest, Can. J. Forest Res., 38, 2981–2993, 2008.
Fedorov, A. N., Iwahana, G., Konstantinov, P. Y., Machimura, T., Argunov, R. N., Efremov, P. V., Lopez, L. M. C., and Takakai, F.: Variability of Permafrost and Landscape Conditions Following Clear Cutting of Larch Forest in Central Yakutia, Permafrost Periglac., 28, 331–338, https://doi.org/10.1002/ppp.1897, 2016.
Filhol, S. and Sturm, M.: Snow bedforms: A review, new data, and a formation model, J. Geophys. Res.-Earth, 120, 1645–1669, https://doi.org/10.1002/2015jf003529, 2015.
Fisher, J. P., Estop Aragonés, C., Thierry, A., Charman, D. J., Wolfe, S. A., Hartley, I. P., Murton, J. B., Williams, M., and Phoenix, G. K.: The influence of vegetation and soil characteristics on active-layer thickness of permafrost soils in boreal forest, Glob. Change Biol., 22, 3127–3140, https://doi.org/10.1111/gcb.13248, 2016.
Forbes, B. C.: Aspects of natural recovery of soils, hydrology and vegetation at an abandoned high arctic settlement, Baffin Island, Canada, Proceedings of the Sixth International Conference on Permafrost, 1, 176–181, 1993.
Forbes, B. C.: Tundra disturbance studies, III: Short-term effects of Aeolian sand and dust, Yamal Region, Northwest Siberia, Environ. Conserv., 22, 335–344, 1995.
Forbes, B. C.: Cumulative impacts of vehicle traffic on high arctic tundra: soil temperature, plant biomass, species richness and mineral nutrition, Yellowknife, Proceedings of the Seventh International Conference on permafrost, CA, 1998.
Forbes, B. C. and Kumpula, T.: The Ecological Role and Geography of Reindeer (Rangifer tarandus) in Northern Eurasia, Geography Compass, 3, 1356–1380, https://doi.org/10.1111/j.1749-8198.2009.00250.x, 2009.
Forbes, B. C., Ebersole, J. J., and Strandberg, B.: Anthropogenic disturbance and patch dynamics in circumpolar arctic ecosystems, Conserv. Biol., 15, 954–969, https://doi.org/10.1046/j.1523-1739.2001.015004954.x, 2001.
Forbes, B. C., Fauria, M. M., and Zetterberg, P.: Russian Arctic warming and “greening” are closely tracked by tundra shrub willows, Glob. Change Biol., 16, 1542–1554, https://doi.org/10.1111/j.1365-2486.2009.02047.x, 2010.
Forkel, M., Carvalhais, N., Roedenbeck, C., Keeling, R., Heimann, M., Thonicke, K., Zaehle, S., and Reichstein, M.: Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems, Science, 351, 696–699, https://doi.org/10.1126/science.aac4971, 2016.
Francis, J. A., White, D. M., Cassano, J. J., Gutowski, W. J., Hinzman, L. D., Holland, M. M., Steele, M. A., and Vörösmarty, C. J.: An arctic hydrologic system in transition: Feedbacks and impacts on terrestrial, marine, and human life, J. Geophys. Res., 114, G04019, https://doi.org/10.1029/2008JG000902, 2009.
French, N. H., Whitley, M. A., and Jenkins, L. K.: Fire disturbance effects on land surface albedo in Alaskan tundra, J. Geophys. Res.-Biogeo., 121, 841–854, https://doi.org/10.1002/2015jg003177, 2016.
Froese, D. G., Westgate, J. A., Reyes, A. V., Enkin, R. J., and Preece, S. J.: Ancient Permafrost and a Future, Warmer Arctic, Science, 321, 1648–1648, https://doi.org/10.1126/science.1157525, 2008.
Frolking, S., Roulet, N., and Fuglestvedt, J.: How northern peatlands influence the Earth's radiative budget: Sustained methane emission versus sustained carbon sequestration, J. Geophys. Res., 111, G01008, https://doi.org/10.1029/2005JG000091, 2006.
Frost, G. V. and Epstein, H. E.: Tall shrub and tree expansion in Siberian tundra ecotones since the 1960s, Glob. Change Biol., 20, 1264–1277, https://doi.org/10.1111/gcb.12406, 2014.
Furayev, V., Vaganov, E. A., Tchebakova, N. M., and Valendik, E. N.: Effects of Fire and Climate on Successions and Structural Changes in The Siberian Boreal Forest, Eurasian Journal of Forest Research, 2, 1–15, 2001.
Gamon, J. A., Kershaw, G. P., Williamson, S., and Hik, D. S.: Microtopographic patterns in an arctic baydjarakh field: do fine-grain patterns enforce landscape stability?, Environ. Res. Lett., 7, 015502, https://doi.org/10.1088/1748-9326/7/1/015502, 2012.
Genet, H., Mcguire, A. D., Barrett, K., Breen, A., Euskirchen, E. S., Johnstone, J. F., Kasischke, E. S., Melvin, A. M., Bennett, A., Mack, M. C., Rupp, T. S., Schuur, A. E. G., Turetsky, M. R., and Yuan, F.: Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior Alaska, Environ. Res. Lett., 8, 045016, https://doi.org/10.1088/1748-9326/8/4/045016, 2013.
Gill, H. K., Lantz, T. C., O'Neill, B., and Kokelj, S. V.: Cumulative Impacts and Feedbacks of a Gravel Road on Shrub Tundra Ecosystems in the Peel Plateau, Northwest Territories, Canada, Arct. Antarct. Alp. Res., 46, 947–961, https://doi.org/10.1657/1938-4246-46.4.947, 2014.
Goodrich, L. E.: The influence of snow cover on the ground thermal regime, Can. Geotech. J., 19, 421–432, https://doi.org/10.1139/t82-047, 1982.
Gouttevin, I., Ménégoz, M., Domine, F., Krinner, G., Koven, C., Ciais, P., Tarnocai, C., and Boike, J.: How the insulating properties of snow affect soil carbon distribution in the continental pan-Arctic area, J. Geophys. Res., 117, G02020, https://doi.org/10.1029/2011JG001916, 2012.
Göckede, M., Kittler, F., Kwon, M. J., Burjack, I., Heimann, M., Kolle, O., Zimov, N., and Zimov, S.: Shifted energy fluxes, increased Bowen ratios, and reduced thaw depths linked with drainage-induced changes in permafrost ecosystem structure, The Cryosphere, 11, 2975–2996, https://doi.org/10.5194/tc-11-2975-2017, 2017.
Graven, H. D., Keeling, R. F., Piper, S. C., Patra, P. K., Stephens, B. B., Wofsy, S. C., Welp, L. R., Sweeney, C., Tans, P. P., Kelley, J. J., Daube, B. C., Kort, E. A., Santoni, G. W., and Bent, J. D.: Enhanced Seasonal Exchange of CO2 by Northern Ecosystems Since 1960, Science, 341, 1085–1089, https://doi.org/10.1126/science.1239207, 2013.
Guay, K. C., Beck, P. S. A., Berner, L. T., Goetz, S. J., Baccini, A., and Buermann, W.: Vegetation productivity patterns at high northern latitudes: a multi-sensor satellite data assessment, Glob. Change Biol., 20, 3147–3158, https://doi.org/10.1111/gcb.12647, 2014.
Halsey, L. A., Vitt, D. H., and Zoltai, S. C.: Disequilibrium response of permafrost in boreal continental western Canada to climate change, Climatic Change, 30, 57–73, https://doi.org/10.1007/BF01093225, 1995.
Harden, J. W., Trumbore, S. E., Stocks, B. J., Hirsch, A., Gower, S. T., O'neill, K. P., and Kasischke, E. S.: The role of fire in the boreal carbon budget, Glob. Change Biol., 6, 174–184, https://doi.org/10.1046/j.1365-2486.2000.06019.x, 2000.
Harms, T. K., Abbott, B. W., and Jones, J. B.: Thermo-erosion gullies increase nitrogen available for hydrologic export, Biogeochemistry, 117, 299–311, https://doi.org/10.1007/s10533-013-9862-0, 2014.
Hayes, D. J., Mcguire, A. D., Kicklighter, D. W., Gurney, K. R., Burnside, T. J., and Melillo, J. M.: Is the northern high-latitude land-based CO2 sink weakening?, 25, GB3018, https://doi.org/10.1029/2010GB003813, 2011.
Heijmans, M. M. P. D., Arp, W. J., and Chapin III, F. S.: Carbon dioxide and water vapour exchange from understory species in boreal forest, Agr. Forest Meteorol., 123, 135–147, https://doi.org/10.1016/j.agrformet.2003.12.006, 2004a.
Heijmans, M. M. P. D., Arp, W. J., and Chapin, F. S.: Controls on moss evaporation in a boreal black spruce forest, Global Biogeochem. Cy., 18, GB2004, https://doi.org/10.1029/2003GB002128, 2004b.
Helbig, M., Pappas, C., and Sonnentag, O.: Permafrost thaw and wildfire: Equally important drivers of boreal tree cover changes in the Taiga Plains, Canada, Geophys. Res. Lett., 43, 1598–1606, https://doi.org/10.1002/2015GL067193, 2016a.
Helbig, M., Wischnewski, K., Kljun, N., Chasmer, L. E., Quinton, W. L., Detto, M., and Sonnentag, O.: Regional atmospheric cooling and wetting effect of permafrost thaw-induced boreal forest loss, Glob. Change Biol., 22, 4048–4066, https://doi.org/10.1111/gcb.13348, 2016b.
Higgins, K. L. and Garon-Labrecque, M.-È.: Fine-scale influences on thaw depth in a forested peat plateau landscape in the Northwest Territories, Canada: Vegetation trumps microtopography, Permafrost Periglac., 29, 60–70, https://doi.org/10.1002/ppp.1961, 2018.
Hinkel, K. M. and Nelson, F. E.: Spatial and temporal patterns of active layer thickness at Circumpolar Active Layer Monitoring (CALM) sites in northern Alaska, 1995–2000, J. Geophys. Res., 108, 8168, https://doi.org/10.1029/2001jd000927, 2003.
Hinkel, K. M. and Outcalt, S. I.: Identification of heat-transfer processes during soil cooling, freezing, and thaw in central Alaska, Permafrost Periglac., 5, 217–235, https://doi.org/10.1002/ppp.3430050403, 1994.
Hinkel, K. M., Paetzold, F., Nelson, F. E., and Bockheim, J. G.: Patterns of soil temperature and moisture in the active layer and upper permafrost at Barrow, Alaska: 1993–1999, Global Planet. Change, 29, 293–309, 2001.
Hinzman, L. D., Kane, D. L., Gieck, R. E., and Everett, K. R.: Hydrologic and thermal properties of the active layer in the Alaskan Arctic, Cold Reg. Sci. Technol., 19, 95–110, https://doi.org/10.1016/0165-232X(91)90001-W, 1991.
Hobbie, S.: Temperature and Plant Species Control Over Litter Decomposition in Alaskan Tundra, Ecol. Monogr., 66, 503–522, 1996.
Hobbie, S. E. and Gough, L.: Litter decomposition in moist acidic and non-acidic tundra with different glacial histories, Oecologia, 140, 113–124, https://doi.org/10.1007/s00442-004-1556-9, 2004.
Hu, F. S., Higuera, P. E., Walsh, J. E., Chapman, W. L., Duffy, P. A., Brubaker, L. B., and Chipman, M. L.: Tundra burning in Alaska: Linkages to climatic change and sea ice retreat, J. Geophys. Res., 115, G04002, https://doi.org/10.1029/2009JG001270, 2010.
Huntington, H., Arnbom, T., Danielson, F., Enghoff, M., Euskirchen, E., Forbes, B., Kurvits, T., Levermann, N., Lovstrom, P., Mustonen, K., Mustonen, T., Schiots, M., Sommerkorn, M., Svoboda, M., Topp-Jorgenson, E., and York, G.: Disturbance, feedbacks and conservation, in Arctic Biodiversity Assessment Status and trends in Arctic biodiversity, Akureyri: Conservation of Arctic Flora and Fauna, available at: https://oaarchive.arctic-council.org/handle/11374/223 (last access: 30 August 2018), 2013.
Iijima, Y., Fedorov, A. N., Park, H., Suzuki, K., Yabuki, H., Maximov, T. C., and Ohata, T.: Abrupt increases in soil temperatures following increased precipitation in a permafrost region, central Lena River basin, Russia, Permafrost Periglac., 21, 30–41, https://doi.org/10.1002/ppp.662, 2010.
Iijima, Y., Ohta, T., Kotani, A., Fedorov, A. N., Kodama, Y., and Maximov, T. C.: Sap flow changes in relation to permafrost degradation under increasing precipitation in an eastern Siberian larch forest, Ecohydrology, 7, 177–187, https://doi.org/10.1002/eco.1366, 2014.
Iversen, C. M., Sloan, V. L., Sullivan, P. F., Euskirchen, E. S., Mcguire, A. D., Norby, R. J., Walker, A. P., Warren, J. M., and Wullschleger, S. D.: The unseen iceberg: plant roots in arctic tundra, New Phytol., 205, 34–58, https://doi.org/10.1111/nph.13003, 2015.
Iwahana, G., Machimura, T., and Kobayashi, Y.: Influence of forest clear-cutting on the thermal and hydrological regime of the active layer near Yakutsk, eastern Siberia, J. Geophys. Res.-Earth, 110, G02004, https://doi.org/10.1029/2005JG000039, 2005.
Jafarov, E. E., Romanovsky, V. E., Genet, H., David McGuire, A., and Marchenko, S. S.: The effects of fire on the thermal stability of permafrost in lowland and upland black spruce forests of interior Alaska in a changing climate, Environ. Res. Lett., 8, 035030, https://doi.org/10.1088/1748-9326/8/3/035030, 2013.
Jean, M. and Payette, S.: Dynamics of active layer in wooded palsas of northern Quebec, Geomorphology, 206, 87–96, https://doi.org/10.1016/j.geomorph.2013.10.001, 2014a.
Jean, M. and Payette, S.: Effect of Vegetation Cover on the Ground Thermal Regime of Wooded and Non-Wooded Palsas, Permafrost Periglac., 25, 281–294, https://doi.org/10.1002/ppp.1817, 2014b.
Jia, G., Epstein, H., and Walker, D.: Greening of arctic Alaska, 1981–2001, Geophys. Res. Lett., 30, 2067, https://doi.org/10.1029/2003GL018268, 2003.
Jiang, Y., Rocha, A. V., O'Donnell, J. A., Drysdale, J. A., Rastetter, E. B., Shaver, G. R., and Zhuang, Q.: Contrasting soil thermal responses to fire in Alaskan tundra and boreal forest, J. Geophys. Res.-Earth, 120, 363–378, https://doi.org/10.1002/2014jf003180, 2015.
Jin, Y., SCHAAF, C., Gao, F., Li, X., STRAHLER, A., Zeng, X., and Dickinson, R.: How does snow impact the albedo of vegetated land surfaces as analyzed with MODIS data?, Geophys. Res. Lett., 29, 12–11, 2002.
Jin, Y., Randerson, J. T., Goetz, S. J., Beck, P. S. A., Loranty, M. M., and Goulden, M. L.: The influence of burn severity on postfire vegetation recovery and albedo change during early succession in North American boreal forests, J. Geophys. Res., 117, G01036, https://doi.org/10.1029/2011JG001886, 2012.
Johansen, O.: Thermal conductivity of soils (No. CRREL-TL-637), Cold Regions Research and Engineering Lab Hanover NH, 1977.
Johansson, T., Malmer, N., Crill, P. M., Friborg, T., ÅKERMAN, J. H., Mastepanov, M., and Christensen, T. R.: Decadal vegetation changes in a northern peatland, greenhouse gas fluxes and net radiative forcing, Glob. Change Biol., 12, 2352–2369, https://doi.org/10.1111/j.1365-2486.2006.01267.x, 2006.
Johnstone, J. F., Hollingsworth, T. N., Chapin III, F. S., and Mack, M. C.: Changes in fire regime break the legacy lock on successional trajectories in Alaskan boreal forest, Glob. Change Biol., 16, 1281–1295, https://doi.org/10.1111/j.1365-2486.2009.02051.x, 2010.
Jones, B. M., Kolden, C. A., Jandt, R., Abatzoglou, J. T., Urban, F., and Arp, C. D.: Fire Behavior, Weather, and Burn Severity of the 2007 Anaktuvuk River Tundra Fire, North Slope, Alaska, Arct. Antarct. Alp. Res., 41, 309–316, https://doi.org/10.1657/1938-4246-41.3.309, 2009.
Jones, B. M., Breen, A. L., Gaglioti, B. V., Mann, D. H., Rocha, A. V., Grosse, G., Arp, C. D., Kunz, M. L., and Walker, D. A.: Identification of unrecognized tundra fire events on the north slope of Alaska, J. Geophys. Res.-Biogeosci., 118, 1334–1344, https://doi.org/10.1002/jgrg.20113, 2013.
Jones, B. M., Grosse, G., Arp, C. D., Miller, E., Liu, L., Hayes, D. J., and Larsen, C. F.: Recent Arctic tundra fire initiates widespread thermokarst development, Scientific Reports, 5, 15865, https://doi.org/10.1038/srep15865, 2015.
Jones, M. C., Grosse, G., Jones, B. M., and Walter Anthony, K.: Peat accumulation in drained thermokarst lake basins in continuous, ice-rich permafrost, northern Seward Peninsula, Alaska, J. Geophys. Res., 117, G00M07, https://doi.org/10.1029/2011JG001766, 2012.
Jorgensen, C. J., Johansen, K. M. L., Westergaard-Nielsen, A., and Elberling, B.: Net regional methane sink in High Arctic soils of northeast Greenland, Nat. Geosci., 8, 20–23, https://doi.org/10.1038/NGEO2305, 2015.
Jorgenson, M. T. and Osterkamp, T. E.: Response of boreal ecosystems to varying modes of permafrost degradation, Can. J. Forest Res., 35, 2100–2111, https://doi.org/10.1139/x05-153, 2005.
Jorgenson, M. T., Racine, C. H., Walters, J. C., and Osterkamp, T. E.: Permafrost degradation and ecological changes associated with a warming climate in central Alaska, Climatic Change, 48, 551–579, 2001.
Jorgenson, M. T., Shur, Y. L., and Pullman, E. R.: Abrupt increase in permafrost degradation in Arctic Alaska, Geophys. Res. Lett., 33, L02503, https://doi.org/10.1029/2005GL024960, 2006.
Jorgenson, M. T., Romanovsky, V., Harden, J., Shur, Y., O'Donnell, J., Schuur, E. A. G., Kanevskiy, M., and Marchenko, S.: Resilience and vulnerability of permafrost to climate change, Can. J. Forest Res., 40, 1219–1236, 2010.
Jorgenson, M. T., HARDEN, J., and Kanevskiy, M.: Reorganization of vegetation, hydrology and soil carbon after permafrost degradation across heterogeneous boreal landscapes, Environ. Res. Lett., 8, 035017, https://doi.org/10.1088/1748-9326/8/3/035017, 2013.
Juday, G. P., Alix, C., and Grant III, T. A.: Spatial coherence and change of opposite white spruce temperature sensitivities on floodplains in Alaska confirms early-stage boreal biome shift, Forest Ecol. Manag., 350, 46–61, https://doi.org/10.1016/j.foreco.2015.04.016, 2015.
Juszak, I., Erb, A. M., Maximov, T. C., and Schaepman-Strub, G.: Arctic shrub effects on NDVI, summer albedo and soil shading, Remote Sens. Environ., 153, 79–89, https://doi.org/10.1016/j.rse.2014.07.021, 2014.
Juszak, I., Eugster, W., Heijmans, M. M. P. D., and Schaepman-Strub, G.: Contrasting radiation and soil heat fluxes in Arctic shrub and wet sedge tundra, Biogeosciences, 13, 4049–4064, https://doi.org/10.5194/bg-13-4049-2016, 2016.
Kane, D. L., Hinzman, L. D., Benson, C. S., and Everett, K. R.: Hydrology of Imnavait Creek, an arctic watershed, Ecography, 12, 262–269, https://doi.org/10.1111/j.1600-0587.1989.tb00845.x, 1989.
Kane, D. L., Hinkel, K. M., Goering, D. J., Hinzman, L. D., and Outcalt, S. I.: Non-conductive heat transfer associated with frozen soils, Global Planet. Change, 29, 275–292, 2001.
Kane, E. S., Kasischke, E. S., Valentine, D. W., Turetsky, M. R., and Mcguire, A. D.: Topographic influences on wildfire consumption of soil organic carbon in interior Alaska: Implications for black carbon accumulation, J. Geophys. Res., 112, G03017, https://doi.org/10.1029/2007JG000458, 2007.
Kasischke, E. and Johnstone, J.: Variation in postfire organic layer thickness in a black spruce forest complex in interior Alaska and its effects on soil temperature and moisture, Can. J. For. Res., 35, 2164–2177, 2005.
Kasischke, E. and Turetsky, M.: Recent changes in the fire regime across the North American boreal region-spatial and temporal patterns of burning across Canada and Alaska, Geophys. Res. Lett., 33, L09703, https://doi.org/10.1029/2006GL025677, 2006.
Kasurinen, V., Alfredsen, K., Kolari, P., Mammarella, I., Alekseychik, P., Rinne, J., Vesala, T., Bernier, P., Boike, J., Langer, M., Belelli Marchesini, L., van Huissteden, K., Dolman, H., Sachs, T., Ohta, T., Varlagin, A., Rocha, A., Arain, A., Oechel, W., Lund, M., Grelle, A., Lindroth, A., Black, A., Aurela, M., Laurila, T., Lohila, A., and Berninger, F.: Latent heat exchange in the boreal and arctic biomes, Glob. Change Biol., 20, 3439–3456, https://doi.org/10.1111/gcb.12640, 2014.
Kelly, R., Chipman, M. L., Higuera, P. E., Stefanova, I., Brubaker, L. B., and Hu, F. S.: Recent burning of boreal forests exceeds fire regime limits of the past 10,000 years, P. Natl. Acad. Sci. USA, 110, 13055–13060, https://doi.org/10.1073/pnas.1305069110, 2013.
Kershaw, G. P.: Some abiotic consequences of the CANOL Crude Oil Pipeline Project, 35 years after abandonment, Proceedings of the Fourth International Conference on Permafrost, 595–600, 1983.
Kershaw, G. P.: Snowpack Characteristics Following Wildfire on a Simulated Transport Corridor and Adjacent Subarctic Forest, Tulita, N.W.T., Canada, Arct. Antarct. Alp. Res., 33, 131–139, https://doi.org/10.2307/1552213, 2001.
Kershaw, G. P. and McCulloch, J.: Midwinter Snowpack Variation Across the Arctic Treeline, Churchill, Manitoba, Canada, Arct. Antarct. Alp. Res., 39, 9–15, https://doi.org/10.1657/1523-0430(2007)39[9:msvata]2.0.co;2, 2007.
Keuper, F., Bodegom, P. M., Dorrepaal, E., Weedon, J. T., Hal, J., Logtestijn, R. S. P., and Aerts, R.: A frozen feast: thawing permafrost increases plant-available nitrogen in subarctic peatlands, Glob. Change Biol., 18, 1998–2007, https://doi.org/10.1111/j.1365-2486.2012.02663.x, 2012.
Kharuk, V. I., Ranson, K. J., and Dvinskaya, M. L.: Wildfires dynamic in the larch dominance zone, Geophys. Res. Lett., 35, L01402, https://doi.org/10.1029/2007GL032291, 2008.
Kharuk, V. I., Dvinskaya, M. L., and Ranson, K. J.: Fire return intervals within the northern boundary of the larch forest in Central Siberia, Int. J. Wildland Fire, 22, 207–6, https://doi.org/10.1071/WF11181, 2013.
Kholodov, A., Gilichinsky, D., Ostroumov, V., Sorokovikov, V. A., Abramov, A. A., Davydov, S., and Romanovsky, V.: Regional and local variability of modern natural changes in permafrost temperature in the Yakutian coastal lowlands, Northeastern Siberia, Proceedings of the Tenth International Conference on Permafrost, 2012.
Kling, G. W., Kipphut, G. W., and Miller, M. C.: Arctic lakes and streams as gas conduits to the atmosphere: implications for tundra carbon budgets, Science, 251, 298–301, 1991.
Kokelj, S. V. and Jorgenson, M. T.: Advances in Thermokarst Research, Permafrost Periglac., 24, 108–119, https://doi.org/10.1002/ppp.1779, 2013.
Koven, C. D., Ringeval, B., Friedlingstein, P., Ciais, P., Cadule, P., Khvorostyanov, D., Krinner, G., and Tarnocai, C.: Permafrost carbon-climate feedbacks accelerate global warming, P. Natl. Acad. Sci., 108, 14769–14774, https://doi.org/10.1073/pnas.1103910108, 2011.
Kropp, H., Loranty, M., Alexander, H. D., Berner, L. T., Natali, S. M., and Spawn, S. A.: Environmental constraints on transpiration and stomatal conductance in a Siberian Arctic boreal forest, J. Geophys. Res.-Biogeo., 122, 487–497, https://doi.org/10.1002/2016JG003709, 2017.
Kukavskaya, E. A., Soja, A. J., Petkov, A. P., Ponomarev, E. I., Ivanova, G. A., and Conard, S. G.: Fire emissions estimates in Siberia: evaluation of uncertainties in area burned, land cover, and fuel consumption, Can. J. Forest Res., 43, 493–506, https://doi.org/10.1139/cjfr-2012-0367, 2012.
Landhäusser, S. M., and Wein, R. W.: Postfire Vegetation Recovery and Tree Establishment at the Arctic Treeline: Climate-Change-Vegetation-Response Hypotheses, J. Ecol., 81, 665–672, https://doi.org/10.2307/2261664, 1993.
Langer, M., Westermann, S., Muster, S., Piel, K., and Boike, J.: The surface energy balance of a polygonal tundra site in northern Siberia – Part 2: Winter, The Cryosphere, 5, 509–524, https://doi.org/10.5194/tc-5-509-2011, 2011a.
Langer, M., Westermann, S., Muster, S., Piel, K., and Boike, J.: The surface energy balance of a polygonal tundra site in northern Siberia – Part 1: Spring to fall, The Cryosphere, 5, 151–171, https://doi.org/10.5194/tc-5-151-2011, 2011b.
Lantz, T. C. and Kokelj, S. V.: Increasing rates of retrogressive thaw slump activity in the Mackenzie Delta region, N.W.T., Canada, Geophys. Res. Lett., 35, L06502, https://doi.org/10.1029/2007GL032433, 2008.
Lantz, T. C., Marsh, P., and Kokelj, S. V.: Recent shrub proliferation in the Mackenzie Delta uplands and microclimatic implications, Ecosystems, 16, 47–59, https://doi.org/10.1007/s10021-012-9595-2, 2013.
Lara, M. J., Genet, H., McGuire, A. D., Euskirchen, E. S., Zhang, Y., Brown, D. R. N., Jorgenson, M. T., Romanovsky, V., Breen, A., and Bolton, W. R.: Thermokarst rates intensify due to climate change and forest fragmentation in an Alaskan boreal forest lowland, Glob. Change Biol., 22, 816–829, https://doi.org/10.1111/gcb.13124, 2016.
Lawrence, D. M. and Swenson, S. C.: Permafrost response to increasing Arctic shrub abundance depends on the relative influence of shrubs on local soil cooling versus large-scale climate warming, Environ. Res. Lett., 6, 045504, https://doi.org/10.1088/1748-9326/6/4/045504, 2011.
Lee, X., Goulden, M. L., Hollinger, D. Y., Barr, A., and Black, T. A.: Observed increase in local cooling effect of deforestation at higher latitudes, Nature, 479, 384–387, https://doi.org/10.1038/nature10588, 2011.
Leibman, M., Khomutov, A., and Kizyakov, A.: Cryogenic landslides in the West-Siberian plain of Russia: classification, mechanisms, and landforms, in Landslides in Cold Regions in the Context of Climate Change, edited by: Shan, W., Guo, Y., Mauri, H., and Strom, A., Springer, 143–162, 2014.
Li, Y., Zhao, M., Motesharrei, S., Mu, Q., Kalnay, E., and Li, S.: Local cooling and warming effects of forests based on satellite observations, Nat. Commun., 6, 1–8, https://doi.org/10.1038/ncomms7603, 2015.
Liljedahl, A., Hinzman, L., Busey, R., and Yoshikawa, K.: Physical short-term changes after a tussock tundra fire, Seward Peninsula, Alaska, J. Geophys. Res., 112, F02S07, https://doi.org/10.1029/2006JF000554, 2007.
Liljedahl, A. K., Boike, J., Daanen, R. P., Fedorov, A. N., Frost, G. V., Grosse, G., Hinzman, L. D., Iijma, Y., Jorgenson, J. C., Matveyeva, N., Necsoiu, M., Raynolds, M. K., Romanovsky, V. E., Schulla, J., Tape, K. D., Walker, D. A., Wilson, C. J., Yabuki, H., and Zona, D.: Pan-Arctic ice-wedge degradation in warming permafrost and its influence on tundra hydrology, Nat. Geosci., 9, 312–318, https://doi.org/10.1038/ngeo2674, 2016.
Liston, G. E., McFadden, J., Sturm, M., and Pielke, R.: Modelled changes in arctic tundra snow, energy and moisture fluxes due to increased shrubs, Glob. Change Biol., 8, 17–32, 2002.
Lloyd, A. H., Bunn, A. G., and Berner, L.: A latitudinal gradient in tree growth response to climate warming in the Siberian taiga, Glob. Change Biol., 17, 1935–1945, https://doi.org/10.1111/j.1365-2486.2010.02360.x, 2010.
Lopez C, M. L., Saito, H., Kobayashi, Y., Shirota, T., Iwahana, G., Maximov, T. C., and Fukuda, M.: Interannual environmental-soil thawing rate variation and its control on transpiration from Larix cajanderi, Central Yakutia, Eastern Siberia, J. Hydrol., 338, 251–260, https://doi.org/10.1016/j.jhydrol.2007.02.039, 2007.
Loranty, M. and Alexander, H. D.: RUI: Collaborative Research: Fire regime influences on carbon dynamics of Siberian boreal forests, Arctic Data Center, https://doi.org/10.18739/A2CD3V, 2014.
Loranty, M. M., Goetz, S. J., and Beck, P. S. A.: Tundra vegetation effects on pan-Arctic albedo, Environ. Res. Lett., 6, 024014, https://doi.org/10.1088/1748-9326/6/2/024014, 2011.
Loranty, M. M., Berner, L. T., Goetz, S. J., Jin, Y., and Randerson, J. T.: Vegetation controls on northern high latitude snow-albedo feedback: observations and CMIP5 model simulations, Glob. Change Biol., 20, 594–606, https://doi.org/10.1111/gcb.12391, 2014a.
Loranty, M. M., Natali, S. M., Berner, L. T., Goetz, S. J., Holmes, R. M., Davydov, S. P., Zimov, N. S., and Zimov, S. A.: Siberian tundra ecosystem vegetation and carbon stocks four decades after wildfire, J. Geophys. Res.-Biogeo., 119, 2144–2154, https://doi.org/10.1002/2014jg002730, 2014b.
Loranty, M. M., Liberman-Cribbin, W., Berner, L. T., Natali, S. M., Goetz, S. J., Alexander, H. D., and Kholodov, A. L.: Spatial variation in vegetation productivity trends, fire disturbance, and soil carbon across arctic-boreal permafrost ecosystems, Environ. Res. Lett., 11, 1–13, https://doi.org/10.1088/1748-9326/11/9/095008, 2016.
Loranty, M. M., Berner, L. T., Taber, E. D., Kropp, H., Natali, S. M., Alexander, H. D., Davydov, S. P., and Zimov, N. S.: Understory vegetation mediates permafrost active layer dynamics and carbon dioxide fluxes in open-canopy larch forests of northeastern Siberia, edited by: Rinnan, R., PLoS ONE, 13, e0194014, https://doi.org/10.1371/journal.pone.0194014, 2018.
Lynch, L. M., Machmuller, M. B., Cotrufo, M. F., Paul, E. A., and Wallenstein, M. D.: Tracking the fate of fresh carbon in the Arctic tundra: Will shrub expansion alter responses of soil organic matter to warming?, Soil Biol. Biochem., 120, 134–144, 2018.
Lyons, E. A., Jin, Y., and Randerson, J. T.: Changes in surface albedo after fire in boreal forest ecosystems of interior Alaska assessed using MODIS satellite observations, J. Geophys. Res., 113, 1–15, https://doi.org/10.1029/2007JG000606, 2008.
Macias-Fauria, M., Forbes, B. C., Zetterberg, P., and Kumpula, T.: Eurasian Arctic greening reveals teleconnections and the potential for structurally novel ecosystems, Nat. Clim. Change, 2, 1–6, https://doi.org/10.1038/nclimate1558, 2012.
Mack, M. C., Treseder, K. K., Manies, K. L., Harden, J. W., Schuur, E. A. G., Vogel, J. G., Randerson, J. T., and Stuart Chapin, F.: Recovery of Aboveground Plant Biomass and Productivity After Fire in Mesic and Dry Black Spruce Forests of Interior Alaska, Ecosystems, 11, 209–225, https://doi.org/10.1007/s10021-007-9117-9, 2008.
Mack, M. C., Bret-Harte, M. S., Hollingsworth, T. N., Jandt, R. R., Schuur, E. A. G., Shaver, G. R., and Verbyla, D. L.: Carbon loss from an unprecedented Arctic tundra wildfire, Nature, 475, 489–492, https://doi.org/10.1038/nature10283, 2011.
Malhotra, A. and Roulet, N. T.: Environmental correlates of peatland carbon fluxes in a thawing landscape: do transitional thaw stages matter?, Biogeosciences, 12, 3119–3130, https://doi.org/10.5194/bg-12-3119-2015, 2015.
Malmer, N., Johansson, T., Olsrud, M., and Christensen, T. R.: Vegetation, climatic changes and net carbon sequestration in a North-Scandinavian subarctic mire over 30 years, Glob. Change Biol., 11, 1895–1909, https://doi.org/10.1111/j.1365-2486.2005.01042.x, 2005.
Mamet, S. D. and Kershaw, G. P.: Multi-scale Analysis of Environmental Conditions and Conifer Seedling Distribution Across the Treeline Ecotone of Northern Manitoba, Canada, Ecosystems, 16, 295–309, https://doi.org/10.1007/s10021-012-9614-3, 2013.
Mamet, S. D., Chun, K. P., Kershaw, G. G. L., Loranty, M. M., and Peter Kershaw, G.: Recent Increases in Permafrost Thaw Rates and Areal Loss of Palsas in the Western Northwest Territories, Canada, Permafrost Periglac., 28, 619–633, https://doi.org/10.1002/ppp.1951, 2017.
Marsh, P., Bartlett, P., MackKay, M., Pohl, S., and Lantz, T.: Snowmelt energetics at a shrub tundra site in the western Canadian Arctic, Hydrol. Process, 24, 3603–3620, https://doi.org/10.1002/hyp.7786, 2010.
Ménard, C. B., Essery, R., and Pomeroy, J.: Modelled sensitivity of the snow regime to topography, shrub fraction and shrub height, Hydrol. Earth Syst. Sci., 18, 2375–2392, https://doi.org/10.5194/hess-18-2375-2014, 2014.
Morse, P. D., Wolfe, S. A., Kokelj, S. V., and Gaanderse, A. J. R.: The Occurrence and Thermal Disequilibrium State of Permafrost in Forest Ecotopes of the Great Slave Region, Northwest Territories, Canada, Permafrost Periglac., 27, 145–162, https://doi.org/10.1002/ppp.1858, 2015.
Mu, C. C., Abbott, B. W., Zhao, Q., Su, H., Wang, S. F., Wu, Q. B., Zhang, T. J., and Wu, X. D.: Permafrost collapse shifts alpine tundra to a carbon source but reduces N2O and CH4 release on the northern Qinghai-Tibetan Plateau, Geophys. Res. Lett., 44, 8945–8952, https://doi.org/10.1002/2017GL074338, 2017.
Myers-Smith, I. H. and Hik, D. S.: Shrub canopies influence soil temperatures but not nutrient dynamics: An experimental test of tundra snow-shrub interactions, Ecol. Evol., 3, 3683–3700, https://doi.org/10.1002/ece3.710, 2013.
Myers-Smith, I. H., Arnesen, B. K., Thompson, R. M., and Chapin, F. S. I.: Cumulative impacts on Alaskan arctic tundra of a quarter century of road dust, Ecoscience, 13, 503–510, 2006.
Myers-Smith, I. H., Elmendorf, S. C., Beck, P. S. A., Wilmking, M., Hallinger, M., Blok, D., Tape, K. D., Rayback, S. A., Macias-Fauria, M., Forbes, B. C., Speed, J. D. M., Boulanger-Lapointe, N., Rixen, C., Lévesque, E., Schmidt, N. M., Baittinger, C., Trant, A. J., Hermanutz, L., Collier, L. S., Dawes, M. A., Lantz, T. C., Weijers, S., Jørgensen, R. H., Buchwal, A., Buras, A., Naito, A. T., Ravolainen, V., Schaepman-Strub, G., Wheeler, J. A., Wipf, S., Guay, K. C., Hik, D. S., and Vellend, M.: Climate sensitivity of shrub growth across the tundra biome, Nat. Clim. Change, 5, 887–891, https://doi.org/10.1038/nclimate2697, 2015.
Myneni, R., Keeling, C., Tucker, C., Asrar, G., and Nemani, R.: Increased plant growth in the northern high latitudes from 1981 to 1991, Nature, 386, 698–701, 1997.
Natali, S. M., Schuur, E. A. G., Trucco, C., Hicks Pries, C. E., Crummer, K. G., and Baron Lopez, A. F.: Effects of experimental warming of air, soil and permafrost on carbon balance in Alaskan tundra, Glob. Change Biol., 17, 1394–1407, https://doi.org/10.1111/j.1365-2486.2010.02303.x, 2011.
Natali, S. M., Schuur, E. A. G., Mauritz, M., Schade, J. D., Celis, G., Crummer, K. G., Johnston, C., Krapek, J., Pegoraro, E., Salmon, V. G., and Webb, E. E.: Permafrost thaw and soil moisture driving CO2 and CH4 release from upland tundra, J. Geophys. Res.-Biogeosci., 120, 525–537, https://doi.org/10.1002/2014jg002872, 2015.
Nauta, A. L., Heijmans, M. M. P. D., Blok, D., Limpens, J., Elberling, B., Gallagher, A., Li, B., Petrov, R. E., Maximov, T. C., van Huissteden, J., and Berendse, F.: Permafrost collapse after shrub removal shifts tundra ecosystem to a methane source, Nat. Clim. Change, 5, 67–70, https://doi.org/10.1038/nclimate2446, 2014.
Nauta, A. L., Heijmans, M. M. P. D., Blok, D., Limpens, J., Elberling, B., Gallagher, A., Li, B., Petrov, R. E., Maximov, T. C., van Huissteden, J., and Berendse, F.: Permafrost collapse after shrub removal shifts tundra ecosystem to a methane source, Nat. Clim. Change, 5, 67–70, https://doi.org/10.1038/nclimate2446, 2015.
Nossov, D. R., Torre Jorgenson, M., Kielland, K., and Kanevskiy, M. Z.: Edaphic and microclimatic controls over permafrost response to fire in interior Alaska, Environ. Res. Lett., 8, 035013, https://doi.org/10.1088/1748-9326/8/3/035013, 2013.
O'Donnell, J. A., Romanovsky, V. E., Harden, J. W., and Mcguire, A. D.: The Effect of Moisture Content on the Thermal Conductivity of Moss and Organic Soil Horizons From Black Spruce Ecosystems in Interior Alaska, Soil Science, 174, 646–651, https://doi.org/10.1097/ss.0b013e3181c4a7f8, 2009a.
O'Donnell, J. A., Turetsky, M., Harden, J., Manies, K., Pruett, L., Shetler, G., and Neff, J.: Interactive Effects of Fire, Soil Climate, and Moss on CO2 Fluxes in Black Spruce Ecosystems of Interior Alaska, Ecosystems, 12, 57–72, 2009b.
O'Donnell, J. A., Harden, J. W., McGuire, A. D., and Romanovsky, V. E.: Exploring the sensitivity of soil carbon dynamics to climate change, fire disturbance and permafrost thaw in a black spruce ecosystem, Biogeosciences, 8, 1367–1382, https://doi.org/10.5194/bg-8-1367-2011, 2011a.
O'Donnell, J. A., Harden, J. W., Mcguire, A. D., Kanevskiy, M. Z., Jorgenson, M. T., and Xu, X.: The effect of fire and permafrost interactions on soil carbon accumulation in an upland black spruce ecosystem of interior Alaska: implications for post-thaw carbon loss, Glob. Change Biol., 17, 1461–1474, https://doi.org/10.1111/j.1365-2486.2010.02358.x, 2011b.
O'Donnell, J. A., Jorgenson, M. T., Harden, J. W., Mcguire, A. D., Kanevskiy, M. Z., and Wickland, K. P.: The effects of permafrost thaw on soil hydrologic, thermal, and carbon dynamics in an Alaskan peatland, Ecosystems, 15, 213–229, https://doi.org/10.1007/s10021-011-9504-0, 2012.
Olefeldt, D., Turetsky, M. R., Crill, P. M., and Mcguire, A. D.: Environmental and physical controls on northern terrestrial methane emissions across permafrost zones, Glob. Change Biol., 19, 589–603, https://doi.org/10.1111/gcb.12071, 2012.
Olefeldt, D., Goswami, S., Grosse, G., and Hayes, D.: Circumpolar distribution and carbon storage of thermokarst landscapes, Nature, 7, 13043, https://doi.org/10.1038/ncomms13043, 2016.
Olofsson, J.: Short- and long-term effects of changes in reindeer grazing pressure on tundra heath vegetation, J. Ecol., 94, 431–440, https://doi.org/10.1111/j.1365-2745.2006.01100.x, 2006.
Olofsson, J., Kitti, H., Rautiainen, P., and Stark, S.: Effects of summer grazing by reindeer on composition of vegetation, productivity and nitrogen cycling, Ecography, 24, 13–24, https://doi.org/10.1034/j.1600-0587.2001.240103.x, 2001.
Olofsson, J., Hulme, P. E., Oksanen, L., and Suominen, O.: Importance of large and small mammalian herbivores for the plant community structure in the forest tundra ecotone, Oikos, 106, 324–334, https://doi.org/10.1111/j.0030-1299.2004.13224.x, 2004a.
Olofsson, J., Stark, S., and Oksanen, L.: Reindeer influence on ecosystem processes in the tundra, Oikos, 105, 386–396, https://doi.org/10.1111/j.0030-1299.2004.13048.x, 2004b.
Olofsson, J., Oksanen, L., Callaghan, T., Hulme, P. E., Oksanen, T., and Suominen, O.: Herbivores inhibit climate-driven shrub expansion on the tundra, Glob. Change Biol., 15, 2681–2693, https://doi.org/10.1111/j.1365-2486.2009.01935.x, 2009.
Osterkamp, T. E., Viereck, L., Shur, Y., Jorgenson, M. T., Racine, C., Doyle, A., and Boone, R. D.: Observations of thermokarst and its impact on boreal forests in Alaska, USA, Arct. Antarct. Alp. Res., 32, 303–315, 2000.
Osterkamp, T. E., Jorgenson, M. T., Schuur, E. A. G., Shur, Y. L., Kanevskiy, M. Z., Vogel, J. G., and Tumskoy, V. E.: Physical and ecological changes associated with warming permafrost and thermokarst in Interior Alaska, Permafrost Periglac., 20, 235–256, https://doi.org/10.1002/ppp.656, 2009.
Outcalt, S. I., Nelson, F. E., and Hinkel, K. M.: The zero-curtain effect: Heat and mass transfer across an isothermal region in freezing soil, Water Resour. Res., 26, 1509–1516, https://doi.org/10.1029/wr026i007p01509, 1990.
Park, H., Walsh, J., Fedorov, A. N., Sherstiukov, A. B., Iijima, Y., and Ohata, T.: The influence of climate and hydrological variables on opposite anomaly in active-layer thickness between Eurasian and North American watersheds, The Cryosphere, 7, 631–645, https://doi.org/10.5194/tc-7-631-2013, 2013.
Pearson, R. G., Phillips, S. J., Loranty, M. M., Beck, P. S. A., Damoulas, T., Knight, S. J., and Goetz, S. J.: Shifts in Arctic vegetation and associated feedbacks under climate change, Nat. Clim. Change, 3, 673–677, https://doi.org/10.1038/nclimate1858, 2013.
Peng, C., Ma, Z., Lei, X., Zhu, Q., Chen, H., Wang, W., Liu, S., Li, W., Fang, X., and Zhou, X.: A drought-induced pervasive increase in tree mortality across Canada's boreal forests, Nat. Clim. Change, 1, 467–471, https://doi.org/10.1038/nclimate1293, 2011.
Phoenix, G. K. and Bjerke, J. W.: Arctic browning: extreme events and trends reversing arctic greening, Glob. Change Biol., 22, 2960–2962, https://doi.org/10.1111/gcb.13261, 2016.
Plante, S., Champagne, E., Ropars, P., Boudreau, S., Lévesque, E., Tremblay, B., and Tremblay, J.-P.: Shrub cover in northern Nunavik: can herbivores limit shrub expansion?, Polar Biol., 37, 611–619, 2014.
Pomeroy, J. W., Bewley, D. S., Essery, R. L. H., Hedstrom, N. R., Link, T., Granger, R. J., Sicart, J. E., Ellis, C. R., and Janowicz, J. R.: Shrub tundra snowmelt, Hydrol. Process, 20, 923–941, https://doi.org/10.1002/hyp.6124, 2006.
Ponomarev, E. I., Kharuk, V. I., and Ranson, K. J.: Wildfires dynamics in siberian larch forests, Forests, 7, 125, https://doi.org/10.3390/f7060125, 2016.
Poorter, H., Niklas, K. J., Reich, P. B., Oleksyn, J., Poot, P., and Mommer, L.: Biomass allocation to leaves, stems and roots: meta-analyses of interspecific variation and environmental control, New Phytol., 193, 30–50, 2012.
Racine, C., Jandt, R., Meyers, C., and Dennis, J.: Tundra fire and vegetation change along a hillslope on the Seward Peninsula, Alaska, USA, Arct. Antarct. Alp. Res., 36, 1–10, 2004.
Radville, L., McCormack, M. L., Post, E., and Eissenstat, D. M.: Root phenology in a changing climate, J. Exp. Bot., 67, 3617–3628, https://doi.org/10.1093/jxb/erw062, 2016.
Randerson, J. T., Liu, H., Flanner, M. G., Chambers, S. D., Jin, Y., Hess, P. G., Pfister, G., Mack, M. C., Treseder, K. K., Welp, L. R., Chapin, F. S., III, Harden, J. W., Goulden, M. L., Lyons, E., Neff, J. C., Schuur, E. A. G., and Zender, C. S.: The Impact of Boreal Forest Fire on Climate Warming, Science, 314, 1130–1132, https://doi.org/10.1126/science.1132075, 2006.
Rasmus, S., Lundell, R., and Saarinen, T.: Interactions between snow, canopy, and vegetation in a boreal coniferous forest, Plant Ecol. Divers., 4, 55–65, https://doi.org/10.1080/17550874.2011.558126, 2011.
Raynolds, M. K., Walker, D. A., Ambrosius, K. J., Brown, J., Everett, K. R., Kanevskiy, M., Kofinas, G. P., Romanovsky, V. E., Shur, Y., and Webber, P. J.: Cumulative geoecological effects of 62 years of infrastructure and climate change in ice-rich permafrost landscapes, Prudhoe Bay Oilfield, Alaska, Glob. Change Biol., 20, 1211–1224, https://doi.org/10.1111/gcb.12500, 2014.
Robinson, S. D. and Moore, T. R.: The influence of permafrost and fire upon carbon accumulation in high boreal peatlands, Northwest Territories, Canada, Arct. Antarct. Alp. Res., 32, 155–f166, https://doi.org/10.2307/1552447, 2000.
Rocha, A. V. and Shaver, G. R.: Postfire energy exchange in arctic tundra: the importance and climatic implications of burn severity, Glob. Change Biol., 17, 2831–2841, https://doi.org/10.1111/j.1365-2486.2011.02441.x, 2011.
Rocha, A. V., Loranty, M. M., Higuera, P. E., Mack, M. C., Hu, F. S., Jones, B. M., Breen, A. L., Rastetter, E. B., Goetz, S. J., and Shaver, G. R.: The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing, Environ. Res. Lett., 7, 044039, https://doi.org/10.1088/1748-9326/7/4/044039, 2012.
Romanovsky, V. E. and Osterkamp, T. E.: Interannual variations of the thermal regime of the active layer and near-surface permafrost in northern Alaska, Permafrost Periglac., 6, 313–335, https://doi.org/10.1002/ppp.3430060404, 1995.
Romanovsky, V. E. and Osterkamp, T. E.: Thawing of the active layer on the coastal plain of the Alaskan Arctic, Permafrost Periglac., 8, 1–22, 1997.
Romanovsky, V. E. and Osterkamp, T. E.: Effects of unfrozen water on heat and mass transport processes in the active layer and permafrost, Permafrost Periglac., 11, 219–239, 2000.
Romanovsky, V. E., Smith, S. L., and Christiansen, H. H.: Permafrost thermal state in the polar Northern Hemisphere during the international polar year 2007-2009: a synthesis, Permafrost Periglac., 21, 106–116, https://doi.org/10.1002/ppp.689, 2010.
Roy-Léveillée, P., Burn, C. R., and McDonald, I. D.: Vegetation-Permafrost Relations within the Forest-Tundra Ecotone near Old Crow, Northern Yukon, Canada, Permafrost Periglac., 25, 127–135, https://doi.org/10.1002/ppp.1805, 2014.
Rydén, B. E. and Kostov, L.: Thawing and freezing in tundra soils, Ecol. Bull., 30, 251–281, 1980.
Schulze, E.-D., Wirth, C., Mollicone, D., von Lüpke, N., Ziegler, W., Achard, F., Mund, M., Prokushkin, A., and Scherbina, S.: Factors promoting larch dominance in central Siberia: fire versus growth performance and implications for carbon dynamics at the boundary of evergreen and deciduous conifers, Biogeosciences, 9, 1405–1421, https://doi.org/10.5194/bg-9-1405-2012, 2012.
Schuur, E. A. G., Crummer, K. G., Vogel, J. G., and Mack, M. C.: Plant Species Composition and Productivity following Permafrost Thaw and Thermokarst in Alaskan Tundra, Ecosystems, 10, 280–292, https://doi.org/10.1007/s10021-007-9024-0, 2007.
Schuur, E. A. G., Abbott, B. W., Bowden, W. B., Brovkin, V., Camill, P., Canadell, J. G., Chanton, J. P., Chapin, F. S., Christensen, T. R., Ciais, P., Crosby, B. T., Czimczik, C. I., Grosse, G., HARDEN, J., Hayes, D. J., Hugelius, G., Jastrow, J. D., Jones, J. B., Kleinen, T., Koven, C. D., Krinner, G., Kuhry, P., Lawrence, D. M., Mcguire, A. D., Natali, S. M., O'Donnell, J. A., Ping, C. L., Riley, W. J., Rinke, A., Romanovsky, V. E., Sannel, A. B. K., Schädel, C., Schaefer, K., Sky, J., Subin, Z. M., Tarnocai, C., Turetsky, M. R., WALDROP, M. P., Anthony, K. M. W., WICKLAND, K. P., Wilson, C. J., and Zimov, S. A.: Expert assessment of vulnerability of permafrost carbon to climate change, Climatic Change, 119, 359–374, https://doi.org/10.1007/s10584-013-0730-7, 2013.
Schuur, E. A. G., Mcguire, A. D., Schädel, C., Grosse, G., Harden, J. W., Hayes, D. J., Hugelius, G., Koven, C. D., Kuhry, P., Lawrence, D. M., Natali, S. M., Olefeldt, D., Romanovsky, V. E., Schaefer, K., Turetsky, M. R., Treat, C. C., and Vonk, J. E.: Climate change and the permafrost carbon feedback, Nature, 520, 171–179, https://doi.org/10.1038/nature14338, 2015.
Shiklomanov, N. I., Streletskiy, D. A., Nelson, F. E., Hollister, R. D., Romanovsky, V. E., Tweedie, C. E., Bockheim, J. G., and Brown, J.: Decadal variations of active-layer thickness in moisture-controlled landscapes, Barrow, Alaska, J. Geophys. Res., 115, G00I04, https://doi.org/10.1029/2009JG001248, 2010.
Shur, Y. L. and Jorgenson, M. T.: Patterns of permafrost formation and degradation in relation to climate and ecosystems, Permafrost Periglac., 18, 7–19, https://doi.org/10.1002/ppp.582, 2007.
Sjöberg, Y., Coon, E., K Sannel, A. B., Pannetier, R., Harp, D., Frampton, A., Painter, S. L., and Lyon, S. W.: Thermal effects of groundwater flow through subarctic fens: A case study based on field observations and numerical modeling, Water Resour. Res., 52, 1591–1606, https://doi.org/10.1002/2015WR017571, 2016.
Slater, A. G. and Lawrence, D. M.: Diagnosing Present and Future Permafrost from Climate Models, J. Climate, 26, 5608–5623, https://doi.org/10.1175/JCLI-D-12-00341.1, 2013.
Smith, M. W.: Microclimatic Influences on Ground Temperatures and Permafrost Distribution, Mackenzie Delta, Northwest Territories, Can. J. Earth Sci., 12, 1421–1438, https://doi.org/10.1139/e75-129, 1975.
Sofronov, M. and Volokitina, A.: Wildfire Ecology in Continuous Permafrost Zone, in Permafrost Ecosystems Siberian Larch Forests, edited by: Osawa, A., Zyryanova, O. A., Matsuura, Y., Kajimoto, T., and Wein, R. W., Springer, New York, 2010.
Soudzilovskaia, N. A., Van Bodegom, P. M., and Cornelissen, J. H. C.: Dominant bryophyte control over high-latitude soil temperature fluctuations predicted by heat transfer traits, field moisture regime and laws of thermal insulation, edited by: Schweitzer, J., Funct. Ecol., 27, 1442–1454, https://doi.org/10.1111/1365-2435.12127, 2013.
Stiegler, C., Johansson, M., Christensen, T. R., Mastepanov, M., and Lindroth, A.: Tundra permafrost thaw causes significant shifts in energy partitioning, Tellus B, 68, 1–11, https://doi.org/10.3402/tellusb.v68.30467, 2016a.
Stiegler, C., Lund, M., Christensen, T. R., Mastepanov, M., and Lindroth, A.: Two years with extreme and little snowfall: effects on energy partitioning and surface energy exchange in a high-Arctic tundra ecosystem, The Cryosphere, 10, 1395–1413, https://doi.org/10.5194/tc-10-1395-2016, 2016b.
Stieglitz, M.: The role of snow cover in the warming of arctic permafrost, Geophys. Res. Lett., 30, 1–4, https://doi.org/10.1029/2003GL017337, 2003.
Stoy, P. C., Street, L. E., Johnson, A. V., Prieto-Blanco, A., and Ewing, S. A.: Temperature, Heat Flux, and Reflectance of Common Subarctic Mosses and Lichens under Field Conditions: Might Changes to Community Composition Impact Climate-Relevant Surface Fluxes?, Arct. Antarct. Alp. Res., 44, 500–508, https://doi.org/10.1657/1938-4246-44.4.500, 2012.
Sturm, M., Holmgren, J., and Liston, G. E.: A seasonal snow cover classification system for local to global applications, J. Climate, 8, 1261–1283, https://doi.org/10.1175/1520-0442(1995)008<1261:assccs>2.0.co;2, 1995.
Sturm, M., McFadden, J., Liston, G. E., and Chapin III, F. S.: Snow–Shrub Interactions in Arctic Tundra: A Hypothesis with Climatic Implications, J. Climate, 14, 336–344, 2001.
Sturm, M., Douglas, T., Racine, C., and Liston, G. E.: Changing snow and shrub conditions affect albedo with global implications, J. Geophys. Res., 110, G01004, https://doi.org/10.1029/2005jg000013, 2005.
Swann, A. L., Fung, I. Y., Levis, S., Bonan, G. B., and Doney, S. C.: Changes in Arctic vegetation amplify high-latitude warming through the greenhouse effect, P. Natl. Acad. Sci. USA, 107, 1295–1300, https://doi.org/10.1073/pnas.0913846107, 2010.
Tape, K., Sturm, M., and Racine, C.: The evidence for shrub expansion in Northern Alaska and the Pan-Arctic, Glob. Change Biol., 12, 686–702, https://doi.org/10.1111/gcb.2006.12.issue-4, 2006.
Tchebakova, N., Parfenova, E., and Soja, A.: The effects of climate, permafrost and fire on vegetation change in Siberia in a changing climate, Environ. Res. Lett., 4, 045013, https://doi.org/10.1088/1748-9326/4/4/045013, 2009.
te Beest, M., Sitters, J., Ménard, C. B., and Olofsson, J.: Reindeer grazing increases summer albedo by reducing shrub abundance in Arctic tundra, Environ. Res. Lett., 11, 125013–125014, https://doi.org/10.1088/1748-9326/aa5128, 2016.
Turetsky, M. R., Kane, E. S., Harden, J. W., Ottmar, R. D., Manies, K. L., Hoy, E., and Kasischke, E. S.: Recent acceleration of biomass burning and carbon losses in Alaskan forests and peatlands, Nat. Geosci., 4, 27–31, https://doi.org/10.1038/ngeo1027, 2011.
Urban, M., Forkel, M., Schmullius, C., Hese, S., Hüttich, C., and Herold, M.: Identification of land surface temperature and albedo trends in AVHRR Pathfinder data from 1982 to 2005 for northern Siberia, Int. J. Remote Sens., 34, 4491–4507, 2013.
van der Wal, R., van Lieshout, S. M. J., and Loonen, M. J. J. E.: Herbivore impact on moss depth, soil temperature and arctic plant growth, Polar Biol., 24, 29–32, https://doi.org/10.1007/s003000000170, 2001.
Vavrek, M. C., Fetcher, N., McGraw, J. B., Shaver, G. R., Chapin III, F. S., and Bovard, B.: Recovery of productivity and species diversity in tussock tundra following disturbance, Arct. Antarct. Alp. Res., 31, 254–258, 1999.
Väisänen, M., Ylänne, H., Kaarlejärvi, E., Sjögersten, S., Olofsson, J., Crout, N., and Stark, S.: Consequences of warming on tundra carbon balance determined by reindeer grazing history, Nat. Clim. Change, 4, 384–388, https://doi.org/10.1038/nclimate2147, 2014.
Viereck, L. A., Werdin-Pfisterer, N. R., Adams, P. C., and Yoshikawa, K.: Effect of wildfire and fireline construction on the annual depth of thaw in a black spruce permafrost forest in interior Alaska: a 36-year record of recovery, Proceedings of the Ninth International Conference on Permafrost, 1845–1850, 2008.
Voigt, C., Marushchak, M. E., Lamprecht, R. E., Jackowicz-Korczynski, M., Lindgren, A., Mastepanov, M., Granlund, L., Christensen, T. R., Tahvanainen, T., Martikainen, P. J., and Biasi, C.: Increased nitrous oxide emissions from Arctic peatlands after permafrost thaw, P. Natl. Acad. Sci. USA, 114, 6238–6243, https://doi.org/10.1073/pnas.1702902114, 2017.
Wagner, A. M., Lindsey, N. J., Dou, S., Gelvin, A., Saari, S., Williams, C., Ekblaw, I., Ulrich, C., Borglin, S., Morales, A., and Ajo-Franklin, J.: Permafrost Degradation and Subsidence Observations during a Controlled Warming Experiment, Scientific Reports, 8, 10908, https://doi.org/10.1038/s41598-018-29292-y, 2018.
Walker, D. A. and Everett, K. R.: Road dust and its environmental impact on Alaskan taiga and tundra, Arct. Alp. Res., 19, 479–489, 1987.
Walker, D. A., Webber, P. J., Binnian, E. F., Everett, K. R., Lederer, N. D., Nordstrand, E. A., and Walker, M. D.: Cumulative impacts of oil fields on northern Alaskan landscapes, Science, 238, 757–761, 1987.
Walker, D. and Everett, K.: Loess ecosystems of northern Alaska: regional gradient and toposequence at Prudhoe Bay, Ecol. Monogr., 61, 437–464, 1991.
Walker, D. A., Billings, W. D., and De Molenaar, J. G.: Snow–vegetation interactions in tundra environments, Snow ecology: an interdisciplinary examination of snow-covered ecosystems, 266–324, 2001.
Walker, M., Wahren, C., Hollister, R., Henry, G., Ahlquist, L. E., Alatalo, J. M., Bret-Harte, M. S., Calef, M. P., Callaghan, T. V., Carroll, A. B., Epstein, H. E., Jonsdottir, I. S., Klein, J. A., Magnusson, B., Molau, U., Oberbauer, S. F., Rewa, S. P., Robinson, C. H., Shaver, G. R., Suding, K. N., Thompson, C. C., Tolvanen, A., Totland, O., Turner, P. L., Webber, C. E. T. J., and Wookey, P. A.: Plant community responses to experimental warming across the tundra biome, P. Natl. Acad. Sci. USA, 103, 1342–1346, 2006.
Walker, X. and Johnstone, J. F.: Widespread negative correlations between black spruce growth and temperature across topographic moisture gradients in the boreal forest, Environ. Res. Lett., 9, 064016, https://doi.org/10.1088/1748-9326/9/6/064016, 2014.
Walker, X. J., Mack, M. C., and Johnstone, J. F.: Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests, Glob. Change Biol., 21, 3102–3113, https://doi.org/10.1111/gcb.12893, 2015.
Walter, K. M., Smith, L. C., and Stuart Chapin, F.: Methane bubbling from northern lakes: present and future contributions to the global methane budget, Philos. T. Roy. Soc. A, 365, 1657–1676, https://doi.org/10.1098/rsta.2007.2036, 2007.
Walter, K. M., Chanton, J. P., Chapin, F. S., Schuur, E. A. G., and Zimov, S. A.: Methane production and bubble emissions from arctic lakes: Isotopic implications for source pathways and ages, J. Geophys. Res., 113, G00A08, https://doi.org/10.1029/2007JG000569, 2008.
Webb, E. E., Heard, K., Natali, S. M., Bunn, A. G., Alexander, H. D., Berner, L. T., Kholodov, A., Loranty, M. M., Schade, J. D., Spektor, V., and Zimov, N.: Variability in above- and belowground carbon stocks in a Siberian larch watershed, Biogeosciences, 14, 4279–4294, https://doi.org/10.5194/bg-14-4279-2017, 2017.
Webster, C., Rutter, N., Zahner, F., and Jonas, T.: Measurement of Incoming Radiation below Forest Canopies: A Comparison of Different Radiometer Configurations, J. Hydrometeorol., 17, 853–864, https://doi.org/10.1175/JHM-D-15-0125.1, 2016.
Welp, L. R., Patra, P. K., Rödenbeck, C., Nemani, R., Bi, J., Piper, S. C., and Keeling, R. F.: Increasing summer net CO2 uptake in high northern ecosystems inferred from atmospheric inversions and comparisons to remote-sensing NDVI, Atmos. Chem. Phys., 16, 9047–9066, https://doi.org/10.5194/acp-16-9047-2016, 2016.
Williamson, S. N., Barrio, I. C., Hik, D. S., and Gamon, J. A.: Phenology and species determine growing-season albedo increase at the altitudinal limit of shrub growth in the sub-Arctic, Glob. Change Biol., 22, 3621–3631, https://doi.org/10.1111/gcb.13297, 2016.
Woo, M.: Consequences of climatic change for hydrology in permafrost zones, J. Cold Reg. Eng., 4, 15–20, https://doi.org/10.1061/(ASCE)0887-381X(1990)4:1(15), 1990.
Woo, M.-K., Mollinga, M., and Smith, S. L.: Climate warming and active layer thaw in the boreal and tundra environments of the Mackenzie Valley, Can. J. Earth Sci., 44, 733–743, https://doi.org/10.1139/e06-121, 2007.
Xue, X., Peng, F., You, Q., Xu, M., and Dong, S.: Belowground carbon responses to experimental warming regulated by soil moisture change in an alpine ecosystem of the Qinghai–Tibet Plateau, Ecol. Evol., 5, 4063–4078, 2015.
Yi, S., Mcguire, A. D., Harden, J., Kasischke, E., Manies, K., Hinzman, L., Liljedahl, A., Randerson, J., Liu, H., Romanovsky, V., Marchenko, S., and Kim, Y.: Interactions between soil thermal and hydrological dynamics in the response of Alaska ecosystems to fire disturbance, J. Geophys. Res., 114, 1–20, https://doi.org/10.1029/2008JG000841, 2009.
Yoshikawa, K. and Hinzman, L. D.: Shrinking thermokarst ponds and groundwater dynamics in discontinuous permafrost near council, Alaska, Permafrost Periglac., 14, 151–160, https://doi.org/10.1002/ppp.451, 2003.
Yoshikawa, K., Bolton, W. R., Romanovsky, V. E., Fukuda, M., and Hinzman, L. D.: Impacts of wildfire on the permafrost in the boreal forests of Interior Alaska, J. Geophys. Res., 108, 8148, https://doi.org/10.1029/2001JD000438, 2003.
Zamin, T. J. and Grogan, P.: Birch shrub growth in the low Arctic: the relative importance of experimental warming, enhanced nutrient availability, snow depth and caribou exclusion, Environ. Res. Lett., 7, 034027–10, https://doi.org/10.1088/1748-9326/7/3/034027, 2012.
Zeng, Z., Piao, S., Li, L. Z. X., Zhou, L., Ciais, P., Wang, T., Li, Y., Lian, X., Wood, E. F., Friedlingstein, P., Mao, J., Estes, L. D., Myneni, R. B., Peng, S., Shi, X., Seneviratne, S. I., and Wang, Y.: Climate mitigation from vegetation biophysical feedbacks during the past three decades, Nat. Clim. Change, 351, 600–608, https://doi.org/10.1038/nclimate3299, 2017.
Zhang, K., Kimball, J. S., Mu, Q., Jones, L. A., Goetz, S. J., and Running, S. W.: Satellite based analysis of northern ET trends and associated changes in the regional water balance from 1983 to 2005, J. Hydrol., 379, 92–110, https://doi.org/10.1016/j.jhydrol.2009.09.047, 2009.
Zhang, T.: Influence of the seasonal snow cover on the ground thermal regime: An overview, Rev. Geophys., 43, RG4002, https://doi.org/10.1029/2004RG000157, 2005.
Zhang, T., Heginbottom, J. A., Barry, R. G., and Brown, J.: Further statistics on the distribution of permafrost and ground ice in the Northern Hemisphere, Polar Geography, 24, 126–131, 2000.
Zimov, S. A., Zimov, N. S., Tikhonov, A. N., and Chapin III, F. S.: Mammoth steppe: a high-productivity phenomenon, Quaternary Sci. Rev., 57, 26–45, https://doi.org/10.1016/j.quascirev.2012.10.005, 2012.
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Vegetation and soils strongly influence ground temperature in permafrost ecosystems across the Arctic and sub-Arctic. These effects will cause differences rates of permafrost thaw related to the distribution of tundra and boreal forests. As the distribution of forests and tundra change, the effects of climate change on permafrost will also change. We review the ecosystem processes that will influence permafrost thaw and outline how they will feed back to climate warming.
Vegetation and soils strongly influence ground temperature in permafrost ecosystems across the...
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