Articles | Volume 19, issue 7
https://doi.org/10.5194/bg-19-1933-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-1933-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Apr 2022
Research article |
| 05 Apr 2022
| 05 Apr 2022
The application of dendrometers to alpine dwarf shrubs – a case study to investigate stem growth responses to environmental conditions
Svenja Dobbert
Department of Geography, University of Bonn, Meckenheimer Allee 166,
53115 Bonn, Germany
Roland Pape
Department of Natural Sciences and Environmental Health, University of
South-Eastern Norway, Gullbringvegen 36, 3800 Bø, Norway
Department of Geography, University of Bonn, Meckenheimer Allee 166,
53115 Bonn, Germany
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Philipp Marr, Stefan Winkler, Steven A. Binnie, and Jörg Löffler
E&G Quaternary Sci. J., 68, 165–176, https://doi.org/10.5194/egqsj-68-165-2019, https://doi.org/10.5194/egqsj-68-165-2019, 2019
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This paper is about deglaciation history in two areas of southern Norway. By dating rock surfaces we can estimate a minimum ice sheet thickness of 1476 m a.s.l. and a timing of deglaciation around 13 000 years ago in the western study area. In the eastern study area the deglaciation history is complex as the bedrock age most likely has inheritance from earlier ice-free periods. Comparing both study areas demonstrates the complex dynamics of the deglaciation in different areas in southern Norway.
Related subject area
Earth System Science/Response to Global Change: Climate Change
Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO2 storage
Ideas and perspectives: Land–ocean connectivity through groundwater
Bioclimatic change as a function of global warming from CMIP6 climate projections
Reconciling different approaches to quantifying land surface temperature impacts of afforestation using satellite observations
Drivers of intermodel uncertainty in land carbon sink projections
Reviews and syntheses: A framework to observe, understand and project ecosystem response to environmental change in the East Antarctic Southern Ocean
Acidification impacts and acclimation potential of Caribbean benthic foraminifera assemblages in naturally discharging low-pH water
Monitoring vegetation condition using microwave remote sensing: the standardized vegetation optical depth index (SVODI)
Evaluation of soil carbon simulation in CMIP6 Earth system models
Diazotrophy as a key driver of the response of marine net primary productivity to climate change
Impact of negative and positive CO2 emissions on global warming metrics using an ensemble of Earth system model simulations
Acidification, deoxygenation, and nutrient and biomass declines in a warming Mediterranean Sea
Ocean alkalinity enhancement – avoiding runaway CaCO3 precipitation during quick and hydrated lime dissolution
Assessment of the impacts of biological nitrogen fixation structural uncertainty in CMIP6 earth system models
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil
The European forest carbon budget under future climate conditions and current management practices
The influence of mesoscale climate drivers on hypoxia in a fjord-like deep coastal inlet and its potential implications regarding climate change: examining a decade of water quality data
Contrasting responses of phytoplankton productivity between coastal and offshore surface waters in the Taiwan Strait and the South China Sea to short-term seawater acidification
Modeling interactions between tides, storm surges, and river discharges in the Kapuas River delta
Climate, land cover and topography: essential ingredients in predicting wetland permanence
Not all biodiversity rich spots are climate refugia
Evaluating the dendroclimatological potential of blue intensity on multiple conifer species from Tasmania and New Zealand
Anthropogenic CO2-mediated freshwater acidification limits survival, calcification, metabolism, and behaviour in stress-tolerant freshwater crustaceans
Quantifying the role of moss in terrestrial ecosystem carbon dynamics in northern high latitudes
On the influence of erect shrubs on the irradiance profile in snow
Tolerance of tropical marine microphytobenthos exposed to elevated irradiance and temperature
Persistent impacts of the 2018 drought on forest disturbance regimes in Europe
Reviews and syntheses: Arctic fire regimes and emissions in the 21st century
Slowdown of the greening trend in natural vegetation with further rise in atmospheric CO2
Effects of elevated CO2 and extreme climatic events on forage quality and in vitro rumen fermentation in permanent grassland
Cushion bog plant community responses to passive warming in southern Patagonia
Blue carbon stocks and exchanges along the California coast
Oceanic primary production decline halved in eddy-resolving simulations of global warming
Assessing climate change impacts on live fuel moisture and wildfire risk using a hydrodynamic vegetation model
Does drought advance the onset of autumn leaf senescence in temperate deciduous forest trees?
Ocean carbon cycle feedbacks in CMIP6 models: contributions from different basins
Sensitivity of 21st-century projected ocean new production changes to idealized biogeochemical model structure
Ocean carbon uptake under aggressive emission mitigation
Effects of Earth system feedbacks on the potential mitigation of large-scale tropical forest restoration
Wetter environment and increased grazing reduced the area burned in northern Eurasia from 2002 to 2016
Physiological responses of Skeletonema costatum to the interactions of seawater acidification and the combination of photoperiod and temperature
Technical note: Interpreting pH changes
Timing of drought in the growing season and strong legacy effects determine the annual productivity of temperate grasses in a changing climate
Contrasting responses of woody and herbaceous vegetation to altered rainfall characteristics in the Sahel
Reduced growth with increased quotas of particulate organic and inorganic carbon in the coccolithophore Emiliania huxleyi under future ocean climate change conditions
Ocean-related global change alters lipid biomarker production in common marine phytoplankton
Multi-decadal changes in structural complexity following mass coral mortality on a Caribbean reef
Stable isotopes track the ecological and biogeochemical legacy of mass mangrove forest dieback in the Gulf of Carpentaria, Australia
Global climate response to idealized deforestation in CMIP6 models
Carbon–concentration and carbon–climate feedbacks in CMIP6 models and their comparison to CMIP5 models
Jens Hartmann, Niels Suitner, Carl Lim, Julieta Schneider, Laura Marín-Samper, Javier Arístegui, Phil Renforth, Jan Taucher, and Ulf Riebesell
Biogeosciences, 20, 781–802, https://doi.org/10.5194/bg-20-781-2023, https://doi.org/10.5194/bg-20-781-2023, 2023
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CO2 can be stored in the ocean via increasing alkalinity of ocean water. Alkalinity can be created via dissolution of alkaline materials, like limestone or soda. Presented research studies boundaries for increasing alkalinity in seawater. The best way to increase alkalinity was found using an equilibrated solution, for example as produced from reactors. Adding particles for dissolution into seawater on the other hand produces the risk of losing alkalinity and degassing of CO2 to the atmosphere.
Damian L. Arévalo-Martínez, Amir Haroon, Hermann W. Bange, Ercan Erkul, Marion Jegen, Nils Moosdorf, Jens Schneider von Deimling, Christian Berndt, Michael Ernst Böttcher, Jasper Hoffmann, Volker Liebetrau, Ulf Mallast, Gudrun Massmann, Aaron Micallef, Holly A. Michael, Hendrik Paasche, Wolfgang Rabbel, Isaac Santos, Jan Scholten, Katrin Schwalenberg, Beata Szymczycha, Ariel T. Thomas, Joonas J. Virtasalo, Hannelore Waska, and Bradley A. Weymer
Biogeosciences, 20, 647–662, https://doi.org/10.5194/bg-20-647-2023, https://doi.org/10.5194/bg-20-647-2023, 2023
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Groundwater flows at the land–ocean transition and the extent of freshened groundwater below the seafloor are increasingly relevant in marine sciences, both because they are a highly uncertain term of biogeochemical budgets and due to the emerging interest in the latter as a resource. Here, we discuss our perspectives on future research directions to better understand land–ocean connectivity through groundwater and its potential responses to natural and human-induced environmental changes.
Morgan Sparey, Peter Cox, and Mark S. Williamson
Biogeosciences, 20, 451–488, https://doi.org/10.5194/bg-20-451-2023, https://doi.org/10.5194/bg-20-451-2023, 2023
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Accurate climate models are vital for mitigating climate change; however, projections often disagree. Using Köppen–Geiger bioclimate classifications we show that CMIP6 climate models agree well on the fraction of global land surface that will change classification per degree of global warming. We find that 13 % of land will change climate per degree of warming from 1 to 3 K; thus, stabilising warming at 1.5 rather than 2 K would save over 7.5 million square kilometres from bioclimatic change.
Huanhuan Wang, Chao Yue, and Sebastiaan Luyssaert
Biogeosciences, 20, 75–92, https://doi.org/10.5194/bg-20-75-2023, https://doi.org/10.5194/bg-20-75-2023, 2023
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This study provided a synthesis of three influential methods to quantify afforestation impact on surface temperature. Results showed that actual effect following afforestation was highly dependent on afforestation fraction. When full afforestation is assumed, the actual effect approaches the potential effect. We provided evidence the afforestation faction is a key factor in reconciling different methods and emphasized that it should be considered for surface cooling impacts in policy evaluation.
Ryan S. Padrón, Lukas Gudmundsson, Laibao Liu, Vincent Humphrey, and Sonia I. Seneviratne
Biogeosciences, 19, 5435–5448, https://doi.org/10.5194/bg-19-5435-2022, https://doi.org/10.5194/bg-19-5435-2022, 2022
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The answer to how much carbon land ecosystems are projected to remove from the atmosphere until 2100 is different for each Earth system model. We find that differences across models are primarily explained by the annual land carbon sink dependence on temperature and soil moisture, followed by the dependence on CO2 air concentration, and by average climate conditions. Our insights on why each model projects a relatively high or low land carbon sink can help to reduce the underlying uncertainty.
Julian Gutt, Stefanie Arndt, David Keith Alan Barnes, Horst Bornemann, Thomas Brey, Olaf Eisen, Hauke Flores, Huw Griffiths, Christian Haas, Stefan Hain, Tore Hattermann, Christoph Held, Mario Hoppema, Enrique Isla, Markus Janout, Céline Le Bohec, Heike Link, Felix Christopher Mark, Sebastien Moreau, Scarlett Trimborn, Ilse van Opzeeland, Hans-Otto Pörtner, Fokje Schaafsma, Katharina Teschke, Sandra Tippenhauer, Anton Van de Putte, Mia Wege, Daniel Zitterbart, and Dieter Piepenburg
Biogeosciences, 19, 5313–5342, https://doi.org/10.5194/bg-19-5313-2022, https://doi.org/10.5194/bg-19-5313-2022, 2022
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Long-term ecological observations are key to assess, understand and predict impacts of environmental change on biotas. We present a multidisciplinary framework for such largely lacking investigations in the East Antarctic Southern Ocean, combined with case studies, experimental and modelling work. As climate change is still minor here but is projected to start soon, the timely implementation of this framework provides the unique opportunity to document its ecological impacts from the very onset.
Daniel François, Adina Paytan, Olga Maria Oliveira de Araújo, Ricardo Tadeu Lopes, and Cátia Fernandes Barbosa
Biogeosciences, 19, 5269–5285, https://doi.org/10.5194/bg-19-5269-2022, https://doi.org/10.5194/bg-19-5269-2022, 2022
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Our analysis revealed that under the two most conservative acidification projections foraminifera assemblages did not display considerable changes. However, a significant decrease in species richness was observed when pH decreases to 7.7 pH units, indicating adverse effects under high-acidification scenarios. A micro-CT analysis revealed that calcified tests of Archaias angulatus were of lower density in low pH, suggesting no acclimation capacity for this species.
Leander Moesinger, Ruxandra-Maria Zotta, Robin van der Schalie, Tracy Scanlon, Richard de Jeu, and Wouter Dorigo
Biogeosciences, 19, 5107–5123, https://doi.org/10.5194/bg-19-5107-2022, https://doi.org/10.5194/bg-19-5107-2022, 2022
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The standardized vegetation optical depth index (SVODI) can be used to monitor the vegetation condition, such as whether the vegetation is unusually dry or wet. SVODI has global coverage, spans the past 3 decades and is derived from multiple spaceborne passive microwave sensors of that period. SVODI is based on a new probabilistic merging method that allows the merging of normally distributed data even if the data are not gap-free.
Rebecca M. Varney, Sarah E. Chadburn, Eleanor J. Burke, and Peter M. Cox
Biogeosciences, 19, 4671–4704, https://doi.org/10.5194/bg-19-4671-2022, https://doi.org/10.5194/bg-19-4671-2022, 2022
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Soil carbon is the Earth’s largest terrestrial carbon store, and the response to climate change represents one of the key uncertainties in obtaining accurate global carbon budgets required to successfully militate against climate change. The ability of climate models to simulate present-day soil carbon is therefore vital. This study assesses soil carbon simulation in the latest ensemble of models which allows key areas for future model development to be identified.
Laurent Bopp, Olivier Aumont, Lester Kwiatkowski, Corentin Clerc, Léonard Dupont, Christian Ethé, Thomas Gorgues, Roland Séférian, and Alessandro Tagliabue
Biogeosciences, 19, 4267–4285, https://doi.org/10.5194/bg-19-4267-2022, https://doi.org/10.5194/bg-19-4267-2022, 2022
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The impact of anthropogenic climate change on the biological production of phytoplankton in the ocean is a cause for concern because its evolution could affect the response of marine ecosystems to climate change. Here, we identify biological N fixation and its response to future climate change as a key process in shaping the future evolution of marine phytoplankton production. Our results show that further study of how this nitrogen fixation responds to environmental change is essential.
Negar Vakilifard, Richard G. Williams, Philip B. Holden, Katherine Turner, Neil R. Edwards, and David J. Beerling
Biogeosciences, 19, 4249–4265, https://doi.org/10.5194/bg-19-4249-2022, https://doi.org/10.5194/bg-19-4249-2022, 2022
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To remain within the Paris climate agreement, there is an increasing need to develop and implement carbon capture and sequestration techniques. The global climate benefits of implementing negative emission technologies over the next century are assessed using an Earth system model covering a wide range of plausible climate states. In some model realisations, there is continued warming after emissions cease. This continued warming is avoided if negative emissions are incorporated.
Marco Reale, Gianpiero Cossarini, Paolo Lazzari, Tomas Lovato, Giorgio Bolzon, Simona Masina, Cosimo Solidoro, and Stefano Salon
Biogeosciences, 19, 4035–4065, https://doi.org/10.5194/bg-19-4035-2022, https://doi.org/10.5194/bg-19-4035-2022, 2022
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Future projections under the RCP8.5 and RCP4.5 emission scenarios of the Mediterranean Sea biogeochemistry at the end of the 21st century show different levels of decline in nutrients, oxygen and biomasses and an acidification of the water column. The signal intensity is stronger under RCP8.5 and in the eastern Mediterranean. Under RCP4.5, after the second half of the 21st century, biogeochemical variables show a recovery of the values observed at the beginning of the investigated period.
Charly A. Moras, Lennart T. Bach, Tyler Cyronak, Renaud Joannes-Boyau, and Kai G. Schulz
Biogeosciences, 19, 3537–3557, https://doi.org/10.5194/bg-19-3537-2022, https://doi.org/10.5194/bg-19-3537-2022, 2022
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This research presents the first laboratory results of quick and hydrated lime dissolution in natural seawater. These two minerals are of great interest for ocean alkalinity enhancement, a strategy aiming to decrease atmospheric CO2 concentrations. Following the dissolution of these minerals, we identified several hurdles and presented ways to avoid them or completely negate them. Finally, we proceeded to various simulations in today’s oceans to implement the strategy at its highest potential.
Taraka Davies-Barnard, Sönke Zaehle, and Pierre Friedlingstein
Biogeosciences, 19, 3491–3503, https://doi.org/10.5194/bg-19-3491-2022, https://doi.org/10.5194/bg-19-3491-2022, 2022
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Biological nitrogen fixation is the largest natural input of new nitrogen onto land. Earth system models mainly represent global total terrestrial biological nitrogen fixation within observational uncertainties but overestimate tropical fixation. The model range of increase in biological nitrogen fixation in the SSP3-7.0 scenario is 3 % to 87 %. While biological nitrogen fixation is a key source of new nitrogen, its predictive power for net primary productivity in models is limited.
Niel Verbrigghe, Niki I. W. Leblans, Bjarni D. Sigurdsson, Sara Vicca, Chao Fang, Lucia Fuchslueger, Jennifer L. Soong, James T. Weedon, Christopher Poeplau, Cristina Ariza-Carricondo, Michael Bahn, Bertrand Guenet, Per Gundersen, Gunnhildur E. Gunnarsdóttir, Thomas Kätterer, Zhanfeng Liu, Marja Maljanen, Sara Marañón-Jiménez, Kathiravan Meeran, Edda S. Oddsdóttir, Ivika Ostonen, Josep Peñuelas, Andreas Richter, Jordi Sardans, Páll Sigurðsson, Margaret S. Torn, Peter M. Van Bodegom, Erik Verbruggen, Tom W. N. Walker, Håkan Wallander, and Ivan A. Janssens
Biogeosciences, 19, 3381–3393, https://doi.org/10.5194/bg-19-3381-2022, https://doi.org/10.5194/bg-19-3381-2022, 2022
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In subarctic grassland on a geothermal warming gradient, we found large reductions in topsoil carbon stocks, with carbon stocks linearly declining with warming intensity. Most importantly, however, we observed that soil carbon stocks stabilised within 5 years of warming and remained unaffected by warming thereafter, even after > 50 years of warming. Moreover, in contrast to the large topsoil carbon losses, subsoil carbon stocks remained unaffected after > 50 years of soil warming.
Roberto Pilli, Ramdane Alkama, Alessandro Cescatti, Werner A. Kurz, and Giacomo Grassi
Biogeosciences, 19, 3263–3284, https://doi.org/10.5194/bg-19-3263-2022, https://doi.org/10.5194/bg-19-3263-2022, 2022
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To become carbon neutral by 2050, the European Union (EU27) forest C sink should increase to −450 Mt CO2 yr-1. Our study highlights that under current management practices (i.e. excluding any policy scenario) the forest C sink of the EU27 member states and the UK may decrease to about −250 Mt CO2eq yr-1 in 2050. The expected impacts of future climate change, however, add a considerable uncertainty, potentially nearly doubling or halving the sink associated with forest management.
Johnathan Daniel Maxey, Neil David Hartstein, Aazani Mujahid, and Moritz Müller
Biogeosciences, 19, 3131–3150, https://doi.org/10.5194/bg-19-3131-2022, https://doi.org/10.5194/bg-19-3131-2022, 2022
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Deep coastal inlets are important sites for regulating land-based organic pollution before it enters coastal oceans. This study focused on how large climate forces, rainfall, and river flow impact organic loading and oxygen conditions in a coastal inlet in Tasmania. Increases in rainfall were linked to higher organic loading and lower oxygen in basin waters. Finally we observed a significant correlation between the Southern Annular Mode and oxygen concentrations in the system's basin waters.
Guang Gao, Tifeng Wang, Jiazhen Sun, Xin Zhao, Lifang Wang, Xianghui Guo, and Kunshan Gao
Biogeosciences, 19, 2795–2804, https://doi.org/10.5194/bg-19-2795-2022, https://doi.org/10.5194/bg-19-2795-2022, 2022
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After conducting large-scale deck-incubation experiments, we found that seawater acidification (SA) increased primary production (PP) in coastal waters but reduced it in pelagic zones, which is mainly regulated by local pH, light intensity, salinity, and community structure. In future oceans, SA combined with decreased upward transports of nutrients may synergistically reduce PP in pelagic zones.
Joko Sampurno, Valentin Vallaeys, Randy Ardianto, and Emmanuel Hanert
Biogeosciences, 19, 2741–2757, https://doi.org/10.5194/bg-19-2741-2022, https://doi.org/10.5194/bg-19-2741-2022, 2022
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This study is the first assessment to evaluate the interactions between river discharges, tides, and storm surges and how they can drive compound flooding in the Kapuas River delta. We successfully created a realistic hydrodynamic model whose domain covers the land–sea continuum using a wetting–drying algorithm in a data-scarce environment. We then proposed a new method to delineate compound flooding hazard zones along the river channels based on the maximum water level profiles.
Jody Daniel, Rebecca C. Rooney, and Derek T. Robinson
Biogeosciences, 19, 1547–1570, https://doi.org/10.5194/bg-19-1547-2022, https://doi.org/10.5194/bg-19-1547-2022, 2022
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The threat posed by climate change to prairie pothole wetlands is well documented, but gaps remain in our ability to make meaningful predictions about how prairie pothole wetlands will respond. We integrate aspects of topography, land cover/land use and climate to model the permanence class of tens of thousands of wetlands at the western edge of the Prairie Pothole Region.
Ádám T. Kocsis, Qianshuo Zhao, Mark J. Costello, and Wolfgang Kiessling
Biogeosciences, 18, 6567–6578, https://doi.org/10.5194/bg-18-6567-2021, https://doi.org/10.5194/bg-18-6567-2021, 2021
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Biodiversity is under threat from the effects of global warming, and assessing the effects of climate change on areas of high species richness is of prime importance to conservation. Terrestrial and freshwater rich spots have been and will be less affected by climate change than other areas. However, marine rich spots of biodiversity are expected to experience more pronounced warming.
Rob Wilson, Kathy Allen, Patrick Baker, Gretel Boswijk, Brendan Buckley, Edward Cook, Rosanne D'Arrigo, Dan Druckenbrod, Anthony Fowler, Margaux Grandjean, Paul Krusic, and Jonathan Palmer
Biogeosciences, 18, 6393–6421, https://doi.org/10.5194/bg-18-6393-2021, https://doi.org/10.5194/bg-18-6393-2021, 2021
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We explore blue intensity (BI) – a low-cost method for measuring ring density – to enhance palaeoclimatology in Australasia. Calibration experiments, using several conifer species from Tasmania and New Zealand, model 50–80 % of the summer temperature variance. The implications of these results have profound consequences for high-resolution paleoclimatology in Australasia, as the speed and cheapness of BI generation could lead to a step change in our understanding of past climate in the region.
Alex R. Quijada-Rodriguez, Pou-Long Kuan, Po-Hsuan Sung, Mao-Ting Hsu, Garett J. P. Allen, Pung Pung Hwang, Yung-Che Tseng, and Dirk Weihrauch
Biogeosciences, 18, 6287–6300, https://doi.org/10.5194/bg-18-6287-2021, https://doi.org/10.5194/bg-18-6287-2021, 2021
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Anthropogenic CO2 is chronically acidifying aquatic ecosystems. We aimed to determine the impact of future freshwater acidification on the physiology and behaviour of an important aquaculture crustacean, Chinese mitten crabs. We report that elevated freshwater CO2 levels lead to impairment of calcification, locomotor behaviour, and survival and reduced metabolism in this species. Results suggest that present-day calcifying invertebrates could be heavily affected by freshwater acidification.
Junrong Zha and Qianlai Zhuang
Biogeosciences, 18, 6245–6269, https://doi.org/10.5194/bg-18-6245-2021, https://doi.org/10.5194/bg-18-6245-2021, 2021
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This study incorporated moss into an extant biogeochemistry model to simulate the role of moss in carbon dynamics in the Arctic. The interactions between higher plants and mosses and their competition for energy, water, and nutrients are considered in our study. We found that, compared with the previous model without moss, the new model estimated a much higher carbon accumulation in the region during the last century and this century.
Maria Belke-Brea, Florent Domine, Ghislain Picard, Mathieu Barrere, and Laurent Arnaud
Biogeosciences, 18, 5851–5869, https://doi.org/10.5194/bg-18-5851-2021, https://doi.org/10.5194/bg-18-5851-2021, 2021
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Expanding shrubs in the Arctic change snowpacks into a mix of snow, impurities and buried branches. Snow is a translucent medium into which light penetrates and gets partly absorbed by branches or impurities. Measurements of light attenuation in snow in Northern Quebec, Canada, showed (1) black-carbon-dominated light attenuation in snowpacks without shrubs and (2) buried branches influence radiation attenuation in snow locally, leading to melting and pockets of large crystals close to branches.
Sazlina Salleh and Andrew McMinn
Biogeosciences, 18, 5313–5326, https://doi.org/10.5194/bg-18-5313-2021, https://doi.org/10.5194/bg-18-5313-2021, 2021
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The benthic diatom communities in Tanjung Rhu, Malaysia, were regularly exposed to high light and temperature variability during the tidal cycle, resulting in low photosynthetic efficiency. We examined the impact of high temperatures on diatoms' photosynthetic capacities, and temperatures beyond 50 °C caused severe photoinhibition. At the same time, those diatoms exposed to temperatures of 40 °C did not show any sign of photoinhibition.
Cornelius Senf and Rupert Seidl
Biogeosciences, 18, 5223–5230, https://doi.org/10.5194/bg-18-5223-2021, https://doi.org/10.5194/bg-18-5223-2021, 2021
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Europe was affected by an extreme drought in 2018. We show that this drought has increased forest disturbances across Europe, especially central and eastern Europe. Disturbance levels observed 2018–2020 were the highest on record for 30 years. Increased forest disturbances were correlated with low moisture and high atmospheric water demand. The unprecedented impacts of the 2018 drought on forest disturbances demonstrate an urgent need to adapt Europe’s forests to a hotter and drier future.
Jessica L. McCarty, Juha Aalto, Ville-Veikko Paunu, Steve R. Arnold, Sabine Eckhardt, Zbigniew Klimont, Justin J. Fain, Nikolaos Evangeliou, Ari Venäläinen, Nadezhda M. Tchebakova, Elena I. Parfenova, Kaarle Kupiainen, Amber J. Soja, Lin Huang, and Simon Wilson
Biogeosciences, 18, 5053–5083, https://doi.org/10.5194/bg-18-5053-2021, https://doi.org/10.5194/bg-18-5053-2021, 2021
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Fires, including extreme fire seasons, and fire emissions are more common in the Arctic. A review and synthesis of current scientific literature find climate change and human activity in the north are fuelling an emerging Arctic fire regime, causing more black carbon and methane emissions within the Arctic. Uncertainties persist in characterizing future fire landscapes, and thus emissions, as well as policy-relevant challenges in understanding, monitoring, and managing Arctic fire regimes.
Alexander J. Winkler, Ranga B. Myneni, Alexis Hannart, Stephen Sitch, Vanessa Haverd, Danica Lombardozzi, Vivek K. Arora, Julia Pongratz, Julia E. M. S. Nabel, Daniel S. Goll, Etsushi Kato, Hanqin Tian, Almut Arneth, Pierre Friedlingstein, Atul K. Jain, Sönke Zaehle, and Victor Brovkin
Biogeosciences, 18, 4985–5010, https://doi.org/10.5194/bg-18-4985-2021, https://doi.org/10.5194/bg-18-4985-2021, 2021
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Satellite observations since the early 1980s show that Earth's greening trend is slowing down and that browning clusters have been emerging, especially in the last 2 decades. A collection of model simulations in conjunction with causal theory points at climatic changes as a key driver of vegetation changes in natural ecosystems. Most models underestimate the observed vegetation browning, especially in tropical rainforests, which could be due to an excessive CO2 fertilization effect in models.
Vincent Niderkorn, Annette Morvan-Bertrand, Aline Le Morvan, Angela Augusti, Marie-Laure Decau, and Catherine Picon-Cochard
Biogeosciences, 18, 4841–4853, https://doi.org/10.5194/bg-18-4841-2021, https://doi.org/10.5194/bg-18-4841-2021, 2021
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Climate change can change vegetation characteristics in grasslands with a potential impact on forage chemical composition and quality, as well as its use by ruminants. Using controlled conditions mimicking a future climatic scenario, we show that forage quality and ruminant digestion are affected in opposite ways by elevated atmospheric CO2 and an extreme event (heat wave, severe drought), indicating that different factors of climate change have to be considered together.
Verónica Pancotto, David Holl, Julio Escobar, María Florencia Castagnani, and Lars Kutzbach
Biogeosciences, 18, 4817–4839, https://doi.org/10.5194/bg-18-4817-2021, https://doi.org/10.5194/bg-18-4817-2021, 2021
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We investigated the response of a wetland plant community to elevated temperature conditions in a cushion bog on Tierra del Fuego, Argentina. We measured carbon dioxide fluxes at experimentally warmed plots and at control plots. Warmed plant communities sequestered between 55 % and 85 % less carbon dioxide than untreated control cushions over the main growing season. Our results suggest that even moderate future warming could decrease the carbon sink function of austral cushion bogs.
Melissa A. Ward, Tessa M. Hill, Chelsey Souza, Tessa Filipczyk, Aurora M. Ricart, Sarah Merolla, Lena R. Capece, Brady C O'Donnell, Kristen Elsmore, Walter C. Oechel, and Kathryn M. Beheshti
Biogeosciences, 18, 4717–4732, https://doi.org/10.5194/bg-18-4717-2021, https://doi.org/10.5194/bg-18-4717-2021, 2021
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Salt marshes and seagrass meadows ("blue carbon" habitats) can sequester and store high levels of organic carbon (OC), helping to mitigate climate change. In California blue carbon sediments, we quantified OC storage and exchange between these habitats. We find that (1) these salt marshes store about twice as much OC as seagrass meadows do and (2), while OC from seagrass meadows is deposited into neighboring salt marshes, little of this material is sequestered as "long-term" carbon.
Damien Couespel, Marina Lévy, and Laurent Bopp
Biogeosciences, 18, 4321–4349, https://doi.org/10.5194/bg-18-4321-2021, https://doi.org/10.5194/bg-18-4321-2021, 2021
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An alarming consequence of climate change is the oceanic primary production decline projected by Earth system models. These coarse-resolution models parameterize oceanic eddies. Here, idealized simulations of global warming with increasing resolution show that the decline in primary production in the eddy-resolved simulations is half as large as in the eddy-parameterized simulations. This stems from the high sensitivity of the subsurface nutrient transport to model resolution.
Wu Ma, Lu Zhai, Alexandria Pivovaroff, Jacquelyn Shuman, Polly Buotte, Junyan Ding, Bradley Christoffersen, Ryan Knox, Max Moritz, Rosie A. Fisher, Charles D. Koven, Lara Kueppers, and Chonggang Xu
Biogeosciences, 18, 4005–4020, https://doi.org/10.5194/bg-18-4005-2021, https://doi.org/10.5194/bg-18-4005-2021, 2021
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We use a hydrodynamic demographic vegetation model to estimate live fuel moisture dynamics of chaparral shrubs, a dominant vegetation type in fire-prone southern California. Our results suggest that multivariate climate change could cause a significant net reduction in live fuel moisture and thus exacerbate future wildfire danger in chaparral shrub systems.
Bertold Mariën, Inge Dox, Hans J. De Boeck, Patrick Willems, Sebastien Leys, Dimitri Papadimitriou, and Matteo Campioli
Biogeosciences, 18, 3309–3330, https://doi.org/10.5194/bg-18-3309-2021, https://doi.org/10.5194/bg-18-3309-2021, 2021
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The drivers of the onset of autumn leaf senescence for several deciduous tree species are still unclear. Therefore, we addressed (i) if drought impacts the timing of autumn leaf senescence and (ii) if the relationship between drought and autumn leaf senescence depends on the tree species. Our study suggests that the timing of autumn leaf senescence is conservative across years and species and even independent of drought stress.
Anna Katavouta and Richard G. Williams
Biogeosciences, 18, 3189–3218, https://doi.org/10.5194/bg-18-3189-2021, https://doi.org/10.5194/bg-18-3189-2021, 2021
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Diagnostics of the latest-generation Earth system models reveal the ocean will continue to absorb a large fraction of the anthropogenic carbon released to the atmosphere in the next century, with the Atlantic Ocean storing a large amount of this carbon relative to its size. The ability of the ocean to absorb carbon will reduce in the future as the ocean warms and acidifies. This reduction is larger in the Atlantic Ocean due to a weakening of the meridional overturning with changes in climate.
Genevieve Jay Brett, Daniel B. Whitt, Matthew C. Long, Frank Bryan, Kate Feloy, and Kelvin J. Richards
Biogeosciences, 18, 3123–3145, https://doi.org/10.5194/bg-18-3123-2021, https://doi.org/10.5194/bg-18-3123-2021, 2021
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We quantify one form of uncertainty in modeled 21st-century changes in phytoplankton growth. The supply of nutrients from deep to surface waters decreases in the warmer future ocean, but the effect on phytoplankton growth also depends on changes in available light, how much light and nutrient the plankton need, and how fast they can grow. These phytoplankton properties can be summarized as a biological timescale: when it is short, future growth decreases twice as much as when it is long.
Sean M. Ridge and Galen A. McKinley
Biogeosciences, 18, 2711–2725, https://doi.org/10.5194/bg-18-2711-2021, https://doi.org/10.5194/bg-18-2711-2021, 2021
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Approximately 40 % of the CO2 emissions from fossil fuel combustion and cement production have been absorbed by the ocean. The goal of the UNFCCC Paris Agreement is to reduce humanity's emissions so as to limit global warming to no more than 2 °C, and ideally less than 1.5 °C. If we achieve this level of mitigation, the ocean's uptake of carbon will be strongly reduced. Excess carbon trapped in the near-surface ocean will begin to mix back to the surface and will limit additional uptake.
Alexander Koch, Chris Brierley, and Simon L. Lewis
Biogeosciences, 18, 2627–2647, https://doi.org/10.5194/bg-18-2627-2021, https://doi.org/10.5194/bg-18-2627-2021, 2021
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Estimates of large-scale tree planting and forest restoration as a carbon sequestration tool typically miss a crucial aspect: the Earth system response to the increased land carbon sink from new vegetation. We assess the impact of tropical forest restoration using an Earth system model under a scenario that limits warming to 2 °C. Almost two-thirds of the carbon impact of forest restoration is offset by negative carbon cycle feedbacks, suggesting a more modest benefit than in previous studies.
Wei Min Hao, Matthew C. Reeves, L. Scott Baggett, Yves Balkanski, Philippe Ciais, Bryce L. Nordgren, Alexander Petkov, Rachel E. Corley, Florent Mouillot, Shawn P. Urbanski, and Chao Yue
Biogeosciences, 18, 2559–2572, https://doi.org/10.5194/bg-18-2559-2021, https://doi.org/10.5194/bg-18-2559-2021, 2021
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We examined the trends in the spatial and temporal distribution of the area burned in northern Eurasia from 2002 to 2016. The annual area burned in this region declined by 53 % during the 15-year period under analysis. Grassland fires in Kazakhstan dominated the fire activity, comprising 47 % of the area burned but accounting for 84 % of the decline. A wetter climate and the increase in grazing livestock in Kazakhstan are the major factors contributing to the decline in the area burned.
Hangxiao Li, Tianpeng Xu, Jing Ma, Futian Li, and Juntian Xu
Biogeosciences, 18, 1439–1449, https://doi.org/10.5194/bg-18-1439-2021, https://doi.org/10.5194/bg-18-1439-2021, 2021
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Few studies have investigated effects of ocean acidification and seasonal changes in temperature and day length on marine diatoms. We cultured a marine diatom under two CO2 levels and three combinations of temperature and day length, simulating different seasons, to investigate combined effects of these factors. Acidification had contrasting effects under different combinations, indicating that the future ocean may show different effects on diatoms in different clusters of factors.
Andrea J. Fassbender, James C. Orr, and Andrew G. Dickson
Biogeosciences, 18, 1407–1415, https://doi.org/10.5194/bg-18-1407-2021, https://doi.org/10.5194/bg-18-1407-2021, 2021
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A decline in upper-ocean pH with time is typically ascribed to ocean acidification. A more quantitative interpretation is often confused by failing to recognize the implications of pH being a logarithmic transform of hydrogen ion concentration rather than an absolute measure. This can lead to an unwitting misinterpretation of pH data. We provide three real-world examples illustrating this and recommend the reporting of both hydrogen ion concentration and pH in studies of ocean chemical change.
Claudia Hahn, Andreas Lüscher, Sara Ernst-Hasler, Matthias Suter, and Ansgar Kahmen
Biogeosciences, 18, 585–604, https://doi.org/10.5194/bg-18-585-2021, https://doi.org/10.5194/bg-18-585-2021, 2021
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While existing studies focus on the immediate effects of drought events on grassland productivity, long-term effects are mostly neglected. But, to conclude universal outcomes, studies must consider comprehensive ecosystem mechanisms. In our study, we found that the resistance of growth rates to drought in grasses varies across seasons, and positive legacy effects of drought indicate a high resilience. The high resilience compensates for immediate drought effects on grasses to a large extent.
Wim Verbruggen, Guy Schurgers, Stéphanie Horion, Jonas Ardö, Paulo N. Bernardino, Bernard Cappelaere, Jérôme Demarty, Rasmus Fensholt, Laurent Kergoat, Thomas Sibret, Torbern Tagesson, and Hans Verbeeck
Biogeosciences, 18, 77–93, https://doi.org/10.5194/bg-18-77-2021, https://doi.org/10.5194/bg-18-77-2021, 2021
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A large part of Earth's land surface is covered by dryland ecosystems, which are subject to climate extremes that are projected to increase under future climate scenarios. By using a mathematical vegetation model, we studied the impact of single years of extreme rainfall on the vegetation in the Sahel. We found a contrasting response of grasses and trees to these extremes, strongly dependent on the way precipitation is spread over the rainy season, as well as a long-term impact on CO2 uptake.
Yong Zhang, Sinéad Collins, and Kunshan Gao
Biogeosciences, 17, 6357–6375, https://doi.org/10.5194/bg-17-6357-2020, https://doi.org/10.5194/bg-17-6357-2020, 2020
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Our results show that ocean acidification, warming, increased light exposure and reduced nutrient availability significantly reduce the growth rate but increase particulate organic and inorganic carbon in cells in the coccolithophore Emiliania huxleyi, indicating biogeochemical consequences of future ocean changes on the calcifying microalga. Concurrent changes in nutrient concentrations and pCO2 levels predominantly affected E. huxleyi growth, photosynthetic carbon fixation and calcification.
Rong Bi, Stefanie M. H. Ismar-Rebitz, Ulrich Sommer, Hailong Zhang, and Meixun Zhao
Biogeosciences, 17, 6287–6307, https://doi.org/10.5194/bg-17-6287-2020, https://doi.org/10.5194/bg-17-6287-2020, 2020
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Lipids provide crucial insight into the trajectory of ecological functioning in changing environments. We experimentally explore responses of lipid biomarker production in phytoplankton to projected changes in temperature, nutrients and pCO2. Differential responses of lipid biomarkers indicate rearrangements of cellular carbon pools under future ocean scenarios. Such variations in lipid biomarker production would have important impacts on marine ecological functions and biogeochemical cycles.
George Roff, Jennifer Joseph, and Peter J. Mumby
Biogeosciences, 17, 5909–5918, https://doi.org/10.5194/bg-17-5909-2020, https://doi.org/10.5194/bg-17-5909-2020, 2020
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In recent decades, extensive mortality of reef-building corals throughout the Caribbean region has led to the erosion of reef frameworks and declines in biodiversity. Using field observations, models, and high-precision U–Th dating, we quantified changes in the structural complexity of coral reef frameworks over the past 2 decades. Structural complexity was stable at reef scales, yet bioerosion led to declines in small-scale microhabitat complexity with cascading effects on cryptic fauna.
Yota Harada, Rod M. Connolly, Brian Fry, Damien T. Maher, James Z. Sippo, Luke C. Jeffrey, Adam J. Bourke, and Shing Yip Lee
Biogeosciences, 17, 5599–5613, https://doi.org/10.5194/bg-17-5599-2020, https://doi.org/10.5194/bg-17-5599-2020, 2020
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In 2015–2016, an extensive area of mangroves along ~ 1000 km of coastline in the Gulf of Carpentaria, Australia, experienced dieback as a result of a climatic extreme event that included drought conditions and low sea levels. Multiannual field campaigns conducted from 2016 to 2018 show substantial recovery of the mangrove vegetation. However, stable isotopes suggest long-lasting changes in carbon, nitrogen and sulfur cycling following the dieback.
Lena R. Boysen, Victor Brovkin, Julia Pongratz, David M. Lawrence, Peter Lawrence, Nicolas Vuichard, Philippe Peylin, Spencer Liddicoat, Tomohiro Hajima, Yanwu Zhang, Matthias Rocher, Christine Delire, Roland Séférian, Vivek K. Arora, Lars Nieradzik, Peter Anthoni, Wim Thiery, Marysa M. Laguë, Deborah Lawrence, and Min-Hui Lo
Biogeosciences, 17, 5615–5638, https://doi.org/10.5194/bg-17-5615-2020, https://doi.org/10.5194/bg-17-5615-2020, 2020
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We find a biogeophysically induced global cooling with strong carbon losses in a 20 million square kilometre idealized deforestation experiment performed by nine CMIP6 Earth system models. It takes many decades for the temperature signal to emerge, with non-local effects playing an important role. Despite a consistent experimental setup, models diverge substantially in their climate responses. This study offers unprecedented insights for understanding land use change effects in CMIP6 models.
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 D. Koven, John P. 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, 17, 4173–4222, https://doi.org/10.5194/bg-17-4173-2020, https://doi.org/10.5194/bg-17-4173-2020, 2020
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Since the preindustrial 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 the carbon cycle allows us to assess how carbon uptake by land and ocean differs among models. This yields an estimate of uncertainty in our understanding of how land and ocean respond to increasing atmospheric CO2. This paper summarizes results from two such model intercomparison projects that use an idealized scenario.
Cited articles
Aartsma, P., Asplund, J., Odland, A., Reinhardt, S., and Renssen, H.: Microclimatic comparison of lichen heaths and shrubs: shrubification generates atmospheric heating but subsurface cooling during the growing season, Biogeosciences, 18, 1577–1599, https://doi.org/10.5194/bg-18-1577-2021, 2021.
Ackerman, D., Griffin, D., Hobbie, S. E., and Finlay, J. C.: Arctic shrub
growth trajectories differ across soil moisture levels, Glob. Change Biol., 23,
4294–4302, https://doi.org/10.1111/gcb.13677, 2017.
Addis, C. E. and Bret-Harte, M. S.: The importance of secondary growth to
plant responses to snow in the arctic, Funct. Ecol., 33, 1050–1066,
https://doi.org/10.1111/1365-2435.13323, 2019.
AMAP: Arctic Climate Change Update 2021: Key Trends and Impacts, Summary for
Policy-makers, Arctic Monitoring and Assessment Programme (AMAP), Tromsø,
Norway, 1–16, https://oaarchive.arctic-council.org/handle/11374/2621 (last access: 8 March 2022), 2021.
Aune, B. (Ed.): National atlas of Norway: climate, Norwegian Mapping Authority,
Hønefoss, Norway, ISBN 829-0408-145, 978-8-2904-081-40, 1993.
Bär, A., Bräuning, A., and Löffler, J.: Dendroecology of dwarf
shrubs in the high mountains of Norway – A methodological approach,
Dendrochronologia, 24, 17–27, https://doi.org/10.1016/j.dendro.2006.05.001, 2006.
Bär, A., Bräuning, A., and Löffler, J.: Ring-width chronologies
of the alpine dwarf shrub Empetrum hermaphroditum from the Norwegian mountains, IAWA J., 28,
325–338, https://doi.org/10.1163/22941932-90001644, 2007.
Bär, A., Pape, R., Bräuning, A., and Löffler, J.: Growth-ring
variations of dwarf shrubs reflect regional climate signals in alpine
environments rather than topoclimatic differences, J. Biogeogr., 35, 625–636,
https://doi.org/10.1111/j.1365-2699.2007.01804.x, 2008.
Barton, K.: MuMIn: Multi-Model Inference, R package version 1.43.17,
https://CRAN.R-project.org/package=MuMIn (last access: 8 March 2022), 2020.
Bell, J. N. B. and Tallis, J. H.: Empetrum nigrum L, J. Ecol., 61, 289–305, https://doi.org/10.2307/2258934,
1973.
Bienau, M. J., Hattermann, D., Kröncke, M., Kretz, L., Otte, A.,
Eiserhardt, W. L., Milbau, A., Graae, B. J., Durka, W., and Eckstein, R. L.:
Snow cover consistently affects growth and reproduction of Empetrum hermaphroditum across
latitudinal and local climatic gradients, Alp. Bot., 124, 115–129,
https://doi.org/10.1007/s00035-014-0137-8, 2014.
Bienau, M. J., Eckstein, R. L., Otte, A., and Durka, W.: Clonality increases
with snow depth in the arctic dwarf shrub Empetrum hermaphroditum, Am. J. Bot., 103, 2105–2114,
https://doi.org/10.3732/ajb.1600229, 2016.
Blok, D., Sass-Klaassen, U., Schaepman-Strub, G., Heijmans, M. M. P. D., Sauren, P., and Berendse, F.: What are the main climate drivers for shrub growth in Northeastern Siberian tundra?, Biogeosciences, 8, 1169–1179, https://doi.org/10.5194/bg-8-1169-2011, 2011.
Blok, D., Weijers, S., Welker, J. M., Cooper, E. J., Michelsen, A.,
Löffler, J., and Elberling, B.: Deepened winter snow increases stem
growth and alters stem δ13C and δ15N in evergreen dwarf
shrub Cassiope tetragona in high-arctic Svalbard tundra, Environ. Res. Lett., 10, 44008,
https://doi.org/10.1088/1748-9326/10/4/044008, 2015.
Bråthen, K. A., Gonzalez, V. T., and Yoccoz, N. G.: Gatekeepers to the
effects of climate warming? Niche construction restricts plant community
changes along a temperature gradient, Perspect. Plant Ecol. Evol. Syst., 30,
71–81, https://doi.org/10.1016/j.ppees.2017.06.005, 2018.
Breitsprecher, A. and Bethel, J. S.: Stem-growth periodicity of trees in a
tropical wet forest of Costa Rica, Ecology, 71, 1156–1164,
https://doi.org/10.2307/1937383, 1990.
Brodie, J. F., Roland, C. A., Stehn, S. E., and Smirnova, E.: Variability in
the expansion of trees and shrubs in boreal Alaska, Ecology, 100, e02660,
https://doi.org/10.1002/ecy.2660, 2019.
Buchwal, A., Rachlewicz, G., Fonti, P., Cherubini, P., and Gärtner, H.:
Temperature modulates intra-plant growth of Salix polaris from a high Arctic site
(Svalbard), Polar Biol., 36, 1305–1318, https://doi.org/10.1007/s00300-013-1349-x, 2013.
Cabon, A., Peters, R. L., Fonti, P., Martínez-Vilalta, J., and
Cáceres, M.: Temperature and water potential co-limit stem cambial
activity along a steep elevational gradient, New Phytol., 226, 1325–1340,
https://doi.org/10.1111/nph.16456, 2020.
Carlquist, S.: Wood and bark anatomy of empetraceae; comments on
paedomorphosis in woods of certain small shrubs, Aliso, 12, 497–515, 1989.
Carlson, B. Z., Corona, M. C., Dentant, C., Bonet, R., Thuiller, W., and
Choler, P.: Observed long-term greening of alpine vegetation – a case study
in the French Alps, Environ. Res. Lett., 12, 114006,
https://doi.org/10.1088/1748-9326/aa84bd, 2017.
Chan, T., Hölttä, T., Berninger, F., Mäkinen, H., Nöjd, P.,
Mencuccini, M., and Nikinmaa, E.: Separating water-potential induced
swelling and shrinking from measured radial stem variations reveals a
cambial growth and osmotic concentration signal, Plant Cell Environ., 39,
233–244, https://doi.org/10.1111/pce.12541, 2016.
Chapin, 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.
Charra-Vaskou, K., Badel, E., Charrier, G., Ponomarenko, A., Bonhomme, M.,
Foucat, L., Mayr, S., and Améglio, T.: Cavitation and water fluxes
driven by ice water potential in Juglans regia during freeze-thaw cycles, J. Exp. Bot., 67,
739–750, https://doi.org/10.1093/jxb/erv486, 2016.
Choler, P.: Winter soil temperature dependence of alpine plant distribution:
Implications for anticipating vegetation changes under a warming climate,
Perspect. Plant Ecol. Evol. Syst., 30, 6–15, https://doi.org/10.1016/j.ppees.2017.11.002,
2018.
Cruz-García, R., Balzano, A., Čufar, K., Scharnweber, T.,
Smiljanić, M., and Wilmking, M.: Combining Dendrometer Series and
Xylogenesis Imagery – DevX, a Simple Visualization Tool to Explore Plant
Secondary Growth Phenology, Front. For. Glob. Change, 2, 60,
https://doi.org/10.3389/fpls.2021.674438, 2019.
Cuny, H. E., Rathgeber, C. B. K., Frank, D., Fonti, P., Mäkinen, H., Prislan, P., Rossi, S., Del Castillo, E. M., Campelo, F., Vavrčík, H., Camarero, J. J., Bryukhanova, M. V., Jyske, T., Gričar, J., Gryc, V., Luis, M. d., Vieira, J., Čufar, K., Kirdyanov, A. V., Oberhuber, W., Treml, V., Huang, J.-G., Li, X., Swidrak, I., Deslauriers, A., Liang, E., Nöjd, P., Gruber, A., Nabais, C., Morin, H., Krause, C., King, G., and Fournier, M.: Woody biomass production lags stem-girth increase by over one month in coniferous forests, Nat. Plants, 1, 15160, https://doi.org/10.1038/nplants.2015.160, 2015.
Dahl, E.: Rondane, mountain vegetation in south Norway and its relation to
the environment, Skrifter utgitt av det Norske Videnskaps-Akademi i Oslo,
Mathematisk-Naturvidenskapelig Klasse, 3, 1–374, 1956.
Daubenmire, R. F.: An improved type of precision dendrometer, Ecology, 26,
97–98, 1945.
De Schepper, V. and Steppe, K.: Development and verification of a water and
sugar transport model using measured stem diameter variations, J. Exp. Bot.,
61, 2083–2099, https://doi.org/10.1093/jxb/erq018, 2010.
Descals, A., Verger, A., Filella, I., Baldocchi, D., Janssens, I. A., Fu, Y.
H., Piao, S., Peaucelle, M., Ciais, P., and Peñuelas, J.: Soil thawing
regulates the spring growth onset in tundra and alpine biomes, Sci. Total
Environ., 742, 140637, https://doi.org/10.1016/j.scitotenv.2020.140637, 2020.
Deslauriers, A., Rossi, S., and Anfodillo, T.: Dendrometer and intra-annual
tree growth: What kind of information can be inferred?, Dendrochronologia,
25, 113–124, https://doi.org/10.1016/j.dendro.2007.05.003, 2007.
Deslauriers, A., Rossi, S., Anfodillo, T., and Saracino, A.: Cambial
phenology, wood formation and temperature thresholds in two contrasting
years at high altitude in southern Italy, Tree Physiol., 28, 863–871,
https://doi.org/10.1093/treephys/28.6.863, 2008.
Dobbert, S., Pape, R., and Löffler, J.: Contrasting growth response of
evergreen and deciduous arctic-alpine shrub species to climate variability,
Ecosphere, 12, e03688, https://doi.org/10.1002/ecs2.3688, 2021a.
Dobbert, S., Pape, R., and Löffler, J.: How does spatial
heterogeneity affect inter- and intraspecific growth patterns in tundra
shrubs?, J. Ecol., 7, 4115–4131, https://doi.org/10.1111/1365-2745.13784, 2021b.
Dolezal, J., Kurnotova, M., Stastna, P., and Klimesova, J.: Alpine plant
growth and reproduction dynamics in a warmer world, New Phytol., 228, 1295–1305,
https://doi.org/10.1111/nph.16790, 2020.
Drew, D. M. and Downes, G. M.: The use of precision dendrometers in research
on daily stem size and wood property variation: A review, Dendrochronologia,
27, 159–172, https://doi.org/10.1016/j.dendro.2009.06.008, 2009.
Duchesne, L., Houle, D., and D'Orangeville, L.: Influence of climate on
seasonal patterns of stem increment of balsam fir in a boreal forest of
Québec, Canada, Agr. Forest Meteorol., 162–163, 108–114,
https://doi.org/10.1016/j.agrformet.2012.04.016, 2012.
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., Magnússon, B., May, J. L., Mercado-Díaz, J. A., Michelsen, A., Molau, U., Myers-Smith, I. H.,
Oberbauer, S. F., Onipchenko, V. G., Rixen, C., Martin Schmidt, N., Shaver,
G. R., Spasojevic, M. J., Şórhallsdóttir, Ş. 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,
453–457, https://doi.org/10.1038/nclimate1465, 2012.
Fatichi, S., Pappas, C., Zscheischler, J., and Leuzinger, S.: Modelling
carbon sources and sinks in terrestrial vegetation, New Phytol., 221,
652–668, https://doi.org/10.1111/nph.15451, 2019.
Fekedulegn, D., Mac Siurtain, M., and Colbert, J.: Parameter estimation of
nonlinear growth models in forestry, Silva Fenn., 33, 653, https://doi.org/10.14214/sf.653,
1999.
Francon, L., Corona, C., Till-Bottraud, I., Choler, P., Carlson, B. Z.,
Charrier, G., Améglio, T., Morin, S., Eckert, N., Roussel, E.,
Lopez-Saez, J., and Stoffel, M.: Assessing the effects of earlier snow
melt-out on alpine shrub growth: The sooner the better?, Ecol. Indic., 115,
106455, https://doi.org/10.1016/j.ecolind.2020.106455, 2020.
Frindte, K., Pape, R., Werner, K., Löffler, J., and Knief, C.:
Temperature and soil moisture control microbial community composition in an
arctic-alpine ecosystem along elevational and micro-topographic gradients,
ISME J., 13, 2031–2043, https://doi.org/10.1038/s41396-019-0409-9, 2019.
Fritts, H. (Ed.): Tree Rings and Climate, Elsevier Science, Oxford, 583 pp., ISBN 978-0-12268-450-0, 1976.
Gall, R., Landolt, W., Schleppi, P., Michellod, V., and Bucher, J. B.: Water
content and bark thickness of Norway spruce ( Picea abies) stems: phloem
water capacitance and xylem sap flow, Tree Physiol., 22, 613–623, https://doi.org/10.1093/treephys/22.9.613, 2002.
Gimeno, T. E., Camarero, J. J., Granda, E., Pías, B., and Valladares,
F.: Enhanced growth of Juniperus thurifera under a warmer climate is explained by a positive
carbon gain under cold and drought, Tree Physiol., 32, 326–336,
https://doi.org/10.1093/treephys/tps011, 2012.
González-Rodríguez, Á. M., Brito, P., Lorenzo, J. R., Gruber,
A., Oberhuber, W., and Wieser, G.: Seasonal cycles of sap flow and stem
radius variation of Spartocytisus supranubius in the alpine zone of Tenerife, Canary Islands, Alpine
Bot., 127, 97–108, https://doi.org/10.1007/s00035-017-0189-7, 2017.
Gough, L., Bass, H., and McLaren, J. R.: Effects of Increased Soil Nutrients
on Seed Rain: A Role for Seed Dispersal in the Greening of the Arctic? Arct.
Antarct Alp. Res., 47, 27–34, https://doi.org/10.1657/AAAR0014-055, 2015.
Graae, B. J., Vandvik, V., Armbruster, W. S., Eiserhardt, W. L., Svenning,
J.-C., Hylander, K., Ehrlén, J., Speed, J. D.M., Klanderud, K.,
Bråthen, K. A., Milbau, A., Opedal, Ø. H., Alsos, I. G., Ejrnæs,
R., Bruun, H. H., Birks, H. J. B., Westergaard, K. B., Birks, H. H., and
Lenoir, J.: Stay or go – how topographic complexity influences alpine plant
population and community responses to climate change, Perspect. Plant Ecol.
Evol. Syst., 30, 41–50, https://doi.org/10.1016/j.ppees.2017.09.008, 2018.
Grams, T. E. E., Hesse, B. D., Gebhardt, T., Weikl, F., Rötzer, T.,
Kovacs, B., Hikino, K., Hafner, B. D., Brunn, M., Bauerle, T., Häberle
K.-H., Pretzsch, H., and Pritsch, K.: The Kroof experiment: realization and
efficacy of a recurrent drought experiment plus recovery in a beech/spruce
forest, Ecosphere, 12, e03399, https://doi.org/10.1002/ecs2.3399, 2021.
Hacke, U. G., Sperry, J. S., Pockman, W. T., Davis, S. D., and McCulloh, K.
A.: Trends in wood density and structure are linked to prevention of xylem
implosion by negative pressure, Oecologia, 126, 457–461,
https://doi.org/10.1007/s004420100628, 2001.
Heide, O. M.: Physiological aspects of climatic adaptation in plants with
special reference to high-latitude environments, in: Plant production in the
North: Proceedings from Plant Adaptation Workshop, edited by: Kaurin, A.,
Junttila, O., and Nilsen J., Norwegian University Press, Tromsö, 1–22, ISBN 978-82-0007-385-7,
1985.
Hein, N., Pape, R., Finch, O.-D., and Löffler, J.: Alpine activity
patterns of Mitopus morio (Fabricius, 1779) are induced by variations in temperature and
humidity at different scales in central Norway, J. Mt. Sci., 11, 644–655,
https://doi.org/10.1007/s11629-013-2913-0, 2014.
Hollesen, J., Buchwal, A., Rachlewicz, G., Hansen, B. U., Hansen, M. O.,
Stecher, O., and Elberling, B.: Winter warming as an important co-driver for
Betula nana growth in western Greenland during the past century, Glob. Change Biol., 21,
2410–2423, https://doi.org/10.1111/gcb.12913, 2015.
Ilek, A., Kucza, J., and Morkisz, K.: Hygroscopicity of the bark of selected
forest tree species, IForest, 10, 220–226, https://doi.org/10.3832/ifor1979-009, 2016.
IPCC: Climate change 2013: The physical science basis Working Group I contribution to the Fifth assessment report of the Intergovernmental Panel on Climate Change, Cambridge University Press, New York, 2014.
Ježík, M., Blaženec, M., Kučera, J., Strelcová, K., and
Ditmarová, L.: The response of intra-annual stem circumference increase
of young European beech provenances to 2012–2014 weather variability,
IForest, 9, 960–969, https://doi.org/10.3832/ifor1829-009, 2016.
King, G., Fonti, P., Nievergelt, D., Büntgen, U., and Frank, D.: Climatic
drivers of hourly to yearly tree radius variations along a 6 ∘C
natural warming gradient, Agr. Forest Meteorol., 168, 36–46, https://doi.org/10.1016/j.agrformet.2012.08.002, 2013.
Kleiven, M.: Studies on the xerophile vegetation in northern Gudbrandsdalen,
Norway, Nytt. Mag. Bot., 7, 1–60, 1959.
Knüsel, S., Peters, R. L., Haeni, M., Wilhelm, M., and Zweifel, R.:
Processing and Extraction of Seasonal Tree Physiological Parameters from
Stem Radius Time Series, Forests, 12, 765,
https://doi.org/10.3390/f12060765, 2021.
Köcher, P., Horna, V., and Leuschner, C.: Environmental control of daily
stem growth patterns in five temperate broad-leaved tree species, Tree
Physiol., 32, 1021–1032, https://doi.org/10.1093/treephys/tps049, 2012.
Körner, C.: Paradigm shift in plant growth control, Curr. Opin. Plant
Biol., 25, 107–114, https://doi.org/10.1016/j.pbi.2015.05.003, 2015.
Körner, C. (Ed.): Alpine plant life: Functional plant ecology of high mountain
ecosystems, 3rd Edn., Springer, Berlin, Heidelberg, 500 pp., https://doi.org/10.1007/978-3-030-59538-8, 2021.
Körner, C. and Hiltbrunner, E.: The 90 ways to describe plant
temperature, Perspect. Plant Ecol. Evol. Syst., 30, 16–21,
https://doi.org/10.1016/j.ppees.2017.04.004, 2018.
Körner, C. and Paulsen, J.: A world-wide study of high altitude treeline
temperatures, J. Biogeogr., 31, 713–732,
https://doi.org/10.1111/j.1365-2699.2003.01043.x, 2004.
Kuprian, E., Briceño, V. F., Wagner, J., and Neuner, G.: Ice barriers
promote supercooling and prevent frost injury in reproductive buds, flowers
and fruits of alpine dwarf shrubs throughout the summer, Environ. Exp. Bot.,
106, 4–12, https://doi.org/10.1016/j.envexpbot.2014.01.011, 2014.
Le Moullec, M., Buchwal, A., Wal, R., Sandal, L., and Hansen, B. B.: Annual
ring growth of a widespread high arctic shrub reflects past fluctuations in
community-level plant biomass, J. Ecol., 107, 436–451,
https://doi.org/10.1111/1365-2745.13036, 2019.
Li, X., Rossi, S., Liang, E., and Julio Camarero, J.: Temperature thresholds
for the onset of xylogenesis in alpine shrubs on the Tibetan Plateau, Trees,
30, 2091–2099, https://doi.org/10.1007/s00468-016-1436-z, 2016.
Liang, E., Lu, X., Ren, P., Li, X., Zhu, L., and Eckstein, D.: Annual
increments of juniper dwarf shrubs above the tree line on the central
Tibetan Plateau: a useful climatic proxy, Ann. Bot., 109, 721–728,
https://doi.org/10.1093/aob/mcr315, 2012.
Liu, X., Nie, Y., and Wen, F.: Seasonal dynamics of stem radial increment of
Pinus taiwanensis Hayata and its response to environmental factors in the Lushan Mountains,
Southeastern China, Forests, 9, 387, https://doi.org/10.3390/f9070387, 2018.
Löffler, J.: Micro-climatic determination of vegetation patterns along
topographical, altitudinal, and oceanic-continental gradients in the high
mountains of Norway, Erdkunde, 57, 232–249,
https://doi.org/10.3112/erdkunde.2003.03.05, 2003.
Löffler, J.: Snow cover dynamics, soil moisture variability and
vegetation ecology in high mountain catchments of central Norway, Hydrol.
Process., 19, 2385–2405, https://doi.org/10.1002/hyp.5891, 2005.
Löffler, J.: The influence of micro-climate, snow cover, and soil
moisture on ecosystem functioning in high mountains, J. Geogr. Sci., 17, 3–19,
https://doi.org/10.1007/s11442-007-0003-3, 2007.
Löffler, J. and Finch, O.-D.: Spatio-temporal Gradients between high
mountain ecosystems of central Norway, Arct. Antarct. Alp. Res., 37, 499–513,
https://doi.org/10.1657/1523-0430(2005)037[0499:SGBHME]2.0.CO;2, 2005.
Löffler, J. and Pape, R.: Thermal niche predictors of alpine plant
species, Ecology, 101, e02891, https://doi.org/10.1002/ecy.2891, 2020.
Löffler, J., Pape, R., and Wundram, D.: The climatologic significance of
topography, altitude and region in high mountains – A survey of
oceanic-continental differentiations of the Scandes, Erdkunde, 60, 15–24,
https://doi.org/10.3112/erdkunde.2006.01.02, 2006.
Löffler, J., Dobbert, S., Pape, R., and Wundram, D.: Dendrometer measurements of arctic-alpine dwarf shrubs and micro-environmental drivers of plant growth – Dataset from long-term alpine ecosystem research in central Norway (LTAER-NO), Erdkunde, DP311201, https://doi.org/10.3112/erdkunde.2021.dp.01, 2021.
Lundell, R., Saarinen, T., Åström, H., and Hänninen, H.: The
boreal dwarf shrub Vaccinium vitis-idaea retains its capacity for photosynthesis through the
winter, Botany, 86, 491–500, https://doi.org/10.1139/B08-022, 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, 613–618, https://doi.org/10.1038/NCLIMATE1558,
2012.
Martínez-Vilalta, J., Sala, A., Asensio, D., Galiano, L., Hoch, G.,
Palacio, S., Piper, F. I., and Lloret, F.: Dynamics of non-structural
carbohydrates in terrestrial plants: a global synthesis, Ecol. Monogr., 86,
495–516, https://doi.org/10.1002/ecm.1231, 2016.
Mayr, S., Hacke, U., Schmid, P., Schwienbacher, F., and Gruber, A.: Frost
drought in conifers at the alpine timberline: xylem dysfunction and
adaptations, Ecology, 87, 3175–3185,
https://doi.org/10.1890/0012-9658(2006)87[3175:FDICAT]2.0.CO;2, 2006.
Moen, A.: National atlas of Norway: vegetation, edited by: Lillethun, A., Norwegian
Mapping Authority, ISBN 82-7945-0000-9, 1999.
Myers-Smith, I. H., Forbes, B. C., Wilmking, M., Hallinger, M., Lantz, T.,
Blok, D., Tape, K. D., Macias-Fauria, M., Sass-Klaassen, U., Lévesque,
E., Boudreau, S., Ropars, P., Hermanutz, L., Trant, A., Collier, L. S.,
Weijers, S., Rozema, J., Rayback, S. A., Schmidt, N. M., Schaepman-Strub,
G., Wipf, S., Rixen, C., Ménard, C. B., Venn, S., Goetz, S.,
Andreu-Hayles, L., Elmendorf, S., Ravolainen, V., Welker, J., Grogan, P.,
Epstein, H. E., and Hik, D. S.: Shrub expansion in tundra ecosystems:
dynamics, impacts and research priorities, Environ. Res. Lett., 6, 45509,
https://doi.org/10.1088/1748-9326/6/4/045509, 2011.
Myers-Smith, I. H., Kerby, J. T., Phoenix, G. K., Bjerke, J. W., Epstein, H.
E., Assmann, J. J., John, C., Andreu-Hayles, L., Angers-Blondin, S., Beck,
P. S. A., Berner, L. T., Bhatt, U. S., Bjorkman, A. D., Blok, D., Bryn, A.,
Christiansen, C. T., Cornelissen, J. H. C., Cunliffe, A. M., Elmendorf, S.
C., Forbes, B. C., Goetz, S. J., Hollister, R. D., Jong, R. de, Loranty, M.
M., Macias-Fauria, M., Maseyk, K., Normand, S., Olofsson, J., Parker, T. C.,
Parmentier, F.-J. W., Post, E., Schaepman-Strub, G., Stordal, F., Sullivan,
P. F., Thomas, H. J. D., Tømmervik, H., Treharne, R., Tweedie, C. E.,
Walker, D. A., Wilmking, M., and Wipf, S.: Complexity revealed in the
greening of the Arctic, Nat. Clim. Change, 10, 106–117,
https://doi.org/10.1038/s41558-019-0688-1, 2020.
Neuner, G.: Frost resistance in alpine woody plants, Front. Plant. Sci., 5,
654, https://doi.org/10.3389/fpls.2014.00654, 2014.
Novick, K. A., Ficklin, D. L., Stoy, P. C., Williams, C. A., Bohrer, G.,
Oishi, A. C., Papuga, S. A., Blanken, P. D., Noormets, A., Sulman, B. N.,
Scott, R. L., Wang, L., and Phillips, R. P.: The increasing importance of
atmospheric demand for ecosystem water and carbon fluxes, Nat. Clim. Change, 6,
1023–1027, https://doi.org/10.1038/nclimate3114, 2016.
Oberhuber, W., Sehrt, M., and Kitz, F.: Hygroscopic properties of thin dead
outer bark layers strongly influence stem diameter variations on short and
long time scales in Scots pine (Pinus sylvestris L.), Agr. Forest Meteorol., 290, 108026,
https://doi.org/10.1016/j.agrformet.2020.108026, 2020.
Ögren, E.: Effects of climatic warming on cold hardiness of some
northern woody plants assessed from simulation experiments, Physiol. Plant,
112, 71–77, https://doi.org/10.1034/j.1399-3054.2001.1120110.x, 2001.
Pape, R. and Löffler, J.: Determinants of arctic-alpine pasture resources: the need for a spatially and functionally fine-scaled perspective, Geogr. Ann. A., 99, 353–370, https://doi.org/10.1080/04353676.2017.1368833, 2017.
Pape, R., Wundram, D., and Löffler, J.: Modelling near-surface
temperature conditions in high mountain environments: an appraisal, Clim.
Res., 39, 99–109, https://doi.org/10.3354/cr00795, 2009.
Peters, R. L., Steppe, K., Cuny, H. E., Pauw, D. J. W. de, Frank, D. C.,
Schaub, M., Rathgeber, C., Cabon, A., and Fonti, P.: Turgor – a limiting factor
for radial growth in mature conifers along an elevational gradient, New
Phytol., 229, 213–229, https://doi.org/10.1111/nph.16872, 2021.
Polunin, N.: Attempted dendrochronological dating of ice Island T-3, Science,
122, 1184–1186, https://doi.org/10.1126/science.122.3181.1184, 1955.
Post, E., Alley, R. B., Christensen, T. R., Macias-Fauria, M., Forbes, B.
C., Gooseff, M. N., Iler, A., Kerby, J. T., Laidre, K. L., Mann, M. E.,
Virginia, R. A., Oloffson, J., Stroeve, J., Ulmer, F., and Wang, M.: The polar
regions in a 2 ∘C warmer world, Sci. Adv., 5, eaaw9883,
https://doi.org/10.1126/sciadv.aaw9883, 2019.
Preece, C., Callaghan, T. V., and Phoenix, G. K.: Impacts of winter icing
events on the growth, phenology and physiology of sub-arctic dwarf shrubs,
Physiol. Plant, 146, 460–472, https://doi.org/10.1111/j.1399-3054.2012.01640.x, 2012.
Prislan, P., Gričar, J., Čufar, K., Luis, M. D., Merela, M., and
Rossi, S.: Growing season and radial growth predicted for Fagus sylvatica
under climate change, Climatic Change, 153, 181–197,
https://doi.org/10.1007/s10584-019-02374-0, 2019.
Rammig, A., Jonas, T., Zimmermann, N. E., and Rixen, C.: Changes in alpine plant growth under future climate conditions, Biogeosciences, 7, 2013–2024, https://doi.org/10.5194/bg-7-2013-2010, 2010.
R Development Core Team: R: A language and environment for statistical
computing, Vienna, Austria: R Foundation for Statistical Computing,
https://www.R-project.org (last access: 8 March 2022), 2020.
Reineke, L. H.: A precision dendrometer, J. Forest., 30, 692–697, 1932.
Rößler, O. and Löffler, J.: Uncertainties of treeline
alterations due to climatic change during the past century in the central
Norwegian Scandes, Geoöko, 28, 104–114, 2007.
Rößler, O., Bräuning, A., and Löffler, J.: Dynamics and
driving forces of treeline fluctuation and regeneration in Central Norway
during the past decades, Erdkunde, 62, 117–128,
https://doi.org/10.3112/erdkunde.2008.02.02, 2008.
Rossi, S., Deslauriers, A., and Morin, H.: Application of the Gompertz
equation for the study of xylem cell development, Dendrochronologia, 21,
33–39, https://doi.org/10.1078/1125-7865-00034, 2003.
Rossi, S., Deslauriers, A., Anfodillo, T., Morin, H., Saracino, A., Motta,
R., and Borghetti, M.: Conifers in cold environments synchronize maximum
growth rate of tree-ring formation with day length, New Phytol., 170,
301–310, https://doi.org/10.1111/j.1469-8137.2006.01660.x, 2006.
Rossi, S., Deslauriers, A., Anfodillo, T., and Carraro, V.: Evidence of
threshold temperatures for xylogenesis in conifers at high altitudes,
Oecologia, 152, 1–12, https://doi.org/10.1007/s00442-006-0625-7, 2007.
Rossi, S., Deslauriers, A., Griçar, J., Seo, J.-W., Rathgeber, C. B. K.,
Anfodillo, T., Morin, H., Levanic, T., Oven, P., and Jalkanen, R.: Critical
temperatures for xylogenesis in conifers of cold climates, Global Ecol.
Biogeogr., 17, 696–707, https://doi.org/10.1111/j.1466-8238.2008.00417.x, 2008.
Saccone, P., Hoikka, K., and Virtanen, R.: What if plant functional types
conceal species-specific responses to environment? Study on arctic shrub
communities, Ecology, 98, 1600–1612, https://doi.org/10.1002/ecy.1817, 2017.
Scherrer, D. and Körner, C.: Topographically controlled thermal-habitat
differentiation buffers alpine plant diversity against climate warming, J.
Biogeogr., 38, 406–416, https://doi.org/10.1111/j.1365-2699.2010.02407.x, 2011.
Schmidt, N. M., Baittinger, C., Kollmann, J., and Forchhammer, M. C.:
Consistent dendrochronological response of the dioecious Salix arctica to variation in
local snow precipitation across gender and vegetation types, Arct. Antarct.
Alp. Res., 42, 471–475, https://doi.org/10.1657/1938-4246-42.4.471, 2010.
Semikhatova, O. A., Gerasimenko, T. V., and Ivanova T. I.: Photosynthesis,
respiration, and growth of plants in the Soviet Arctic, in: Arctic
ecosystems in a changing climate: an ecophysiological perspective, edited
by: Chapin, F. S., Jefferies, R. L., Reynolds, J. F., Shaver, G. R., and
Svoboda, J., Academic Press, San Diego, California, USA, 169–192, https://doi.org/10.1016/B978-0-12-168250-7.50014-6, 1992.
Shaver, G. R. and Chapin III, F. S.: Effect of fertilizer on production and
biomass of tussock tundra, Alaska, U.S.A, Arct. Alp. Res., 18, 261–268,
https://doi.org/10.2307/1550883, 1986.
Shetti, R.: Methods in shrub dendro-ecology: Understanding the processes
influencing shrub growth in the Arctic and Alpine ecosystems, PhD thesis,
University of Greifswald, Mathematisch-Naturwissenschaftlichen Fakultät,
Greifswald, 209 pp., http://nbn-resolving.org/urn:nbn:de:gbv:9-opus-24118 (last access: 8 March 2022), 2018.
Shevtsova, A., Haukioja, E., and Ojala, A.: Growth Response of Subarctic
Dwarf Shrubs, Empetrum nigrum and Vaccinium vitis-idaea, to Manipulated Environmental Conditions and Species
Removal, Oikos, 78, 440–458, https://doi.org/10.2307/3545606, 1997.
Smiljanić, M. and Wilmking, M.: Drivers of stem radial variation and its
pattern in peatland Scots pines: A pilot study, Dendrochronologia, 47,
30–37, https://doi.org/10.1016/j.dendro.2017.12.001, 2018.
Starr, G. and Oberbauer, S. F.: Photosynthesis of arctic evergreens under
snow: Implications for tundra ecosystem carbon balance, Ecology, 84,
1415–1420, https://doi.org/10.1890/02-3154, 2003.
Steppe, K., Sterck, F., and Deslauriers, A.: Diel growth dynamics in tree
stems: linking anatomy and ecophysiology, Trends Plant. Sci., 20, 335–343,
https://doi.org/10.1016/j.tplants.2015.03.015, 2015.
Sturm, M., Racine, C., and Tape, K.: Climate change. Increasing shrub
abundance in the Arctic, Nature, 411, 546–547, https://doi.org/10.1038/35079180, 2001.
Stushnoff, C. and Junttila, O.: Seasonal development of cold stress
resistance in several plant species at a coastal and a continental location
in North Norway, Polar Biol., 5, 129–133, https://doi.org/10.1007/BF00441691, 1986.
Tian, Q., He, Z., Xiao, S., Du, J., Peng, X., Lin, P., and Ding, A.: Effects
of artificial warming on stem radial changes in Qinghai spruce saplings in
the Qilian Mountains of China, Dendrochronologia, 55, 110–118,
https://doi.org/10.1016/j.dendro.2019.04.009, 2019.
Turcotte, A., Rossi, S., Deslauriers, A., Krause, C., and Morin, H.: Dynamics of depletion and replenishment of water storage in stem and roots of black spruce measured by dendrometers, Front. Plant Sci., 2, 21, https://doi.org/10.3389/fpls.2011.00021, 2011.
Tyree, M. T. and Sperry, J. S.: Vulnerability of xylem to cavitation and
embolism, Annu. Rev. Plant Phys., 40, 19–36,
https://doi.org/10.1146/annurev.pp.40.060189.000315, 1989.
Van der Maaten, E., Pape, J., van der Maaten-Theunissen, M., Scharnweber,
T., Smiljanic, M., Cruz-García, R., and Wilmking, M.: Distinct growth
phenology but similar daily stem dynamics in three co-occurring broadleaved
tree species, Tree Physiol., 38, 1820–1828, https://doi.org/10.1093/treephys/tpy042,
2018.
Van der Maaten-Theunissen, M., Kahle, H.-P., and van der Maaten, E.: Drought
sensitivity of Norway spruce is higher than that of silver fir along an
altitudinal gradient in southwestern Germany, Ann. Forest Sci., 70, 185–193,
https://doi.org/10.1007/s13595-012-0241-0, 2013.
Van der Wal, R. and Stien, A.: High-arctic plants like it hot: a long-term
investigation of between-year variability in plant biomass, Ecology, 95,
3414–3427, https://doi.org/10.1890/14-0533.1, 2014.
Venn, S. E. and Green, K.: Evergreen alpine shrubs have high freezing
resistance in spring, irrespective of snowmelt timing and exposure to frost:
an investigation from the Snowy Mountains, Australia, Plant. Ecol., 219,
209–216, https://doi.org/10.1007/s11258-017-0789-8, 2018.
Vowles, T. and Björk, R. G.: Implications of evergreen shrub expansion
in the Arctic, J. Ecol., 107, 650–655, https://doi.org/10.1111/1365-2745.13081, 2019.
Wang, Y., Wang, Y., Li, Z., Yu, P., and Han, X.: Interannual variation of
transpiration and its modeling of a larch plantation in semiarid Northwest
China, Forests, 11, 1303, https://doi.org/10.3390/f11121303, 2020.
Weijers, S. and Löffler, J.: Auswirkungen des Klimawandels auf das
Wachstum von Zwergsträuchern in Hochgebirgen, in: Warnsignal Klima:
Hochgebirge im Wandel, edited by: Lozán, J. L., Breckle, S.-W., Grassl,
H., Kasang, D., Paul, F., and Schickhoff, U., Wissenschaftliche
Auswertungen, Hamburg, Germany, 23–27, https://doi.org/10.25592/uhhfdm.9253, 2020.
Weijers, S., Broekman, R., and Rozema, J.: Dendrochronology in the High
Arctic: July air temperatures reconstructed from annual shoot length growth
of the circumarctic dwarf shrub Cassiope tetragona, Quaternary Sci. Rev., 29, 3831–3842,
https://doi.org/10.1016/j.quascirev.2010.09.003, 2010.
Weijers, S., Buchwal, A., Blok, D., Löffler, J., and Elberling, B.: High
Arctic summer warming tracked by increased Cassiope tetragona growth in the world's
northernmost polar desert, Glob. Change Biol., 23, 5006–5020,
https://doi.org/10.1111/gcb.13747, 2017.
Weijers, S., Pape, R., Löffler, J., and Myers-Smith, I. H.: Contrasting
shrub species respond to early summer temperatures leading to correspondence
of shrub growth patterns, Environ. Res. Lett., 13, 34005,
https://doi.org/10.1088/1748-9326/aaa5b8, 2018a.
Weijers, S., Beckers, N., and Löffler, J.: Recent spring warming limits
near-treeline deciduous and evergreen alpine dwarf shrub growth, Ecosphere,
9, e02328, https://doi.org/10.1002/ecs2.2328, 2018b.
Wilmking, M., Hallinger, M., van Bogaert, R., Kyncl, T., Babst, F., Hahne,
W., Juday, G. P., Luis, M. D., Novak, K., and Völlm, C.: Continuously
missing outer rings in woody plants at their distributional margins,
Dendrochronologia, 30, 213–222, https://doi.org/10.1016/j.dendro.2011.10.001, 2012.
Winget, C. H. and Kozlowski, T. T.: Winter shrinkage in stems of forest trees, J.
Forest., 62, 335–337, 1964.
Wundram, D., Pape, R., and Löffler, J.: Alpine soil temperature
variability at multiple scales, Arct. Antarct. Alp. Res., 42, 117–128,
https://doi.org/10.1657/1938-4246-42.1.117, 2010.
Wyka, T. P. and Oleksyn, J.: Photosynthetic ecophysiology of evergreen
leaves in the woody angiosperms – a review, Dendrobiology, 72, 3–27,
https://doi.org/10.12657/denbio.072.001, 2014.
Zellweger, F., Frenne, P. de, Lenoir, J., Vangansbeke, P., Verheyen, K.,
Bernhardt-Römermann, M., Baeten, L., Hédl, R., Berki, I., Brunet,
J., van Calster, H., Chudomelová, M., Decocq, G., Dirnböck, T.,
Durak, T., Heinken, T., Jaroszewicz, B., Kopecký, M., Máliš, F.,
Macek, M., Malicki, M., Naaf, T., Nagel, T. A., Ortmann-Ajkai, A.,
Petřík, P., Pielech, R., Reczyńska, K., Schmidt, W.,
Standovár, T., Świerkosz, K., Teleki, B., Vild, O., Wulf, M., and
Coomes, D.: Forest microclimate dynamics drive plant responses to warming,
Science, 368, 772–775, https://doi.org/10.1126/science.aba6880, 2020.
Zweifel, R.: Radial stem variations – a source of tree physiological
information not fully exploited yet, Plant Cell. Environ.,
39, 231–232, https://doi.org/10.1111/pce.12613, 2016.
Zweifel, R. and Häsler, R.: Frost-induced reversible shrinkage of bark
of mature subalpine conifers, Agr. Forest Meteorol., 102, 213–222,
https://doi.org/10.1016/S0168-1923(00)00135-0, 2000.
Zweifel, R., Item, H., and Hasler, R.: Stem radius changes and their
relation to stored water in stems of young Norway spruce trees, Trees Struct.
Funct., 15, 50–57, https://doi.org/10.1007/s004680000072, 2000.
Zweifel, R., Zimmermann, L., Zeugin, F., and Newbery, D. M.: Intra-annual
radial growth and water relations of trees: implications towards a growth
mechanism, J. Exp. Bot., 57, 1445–1459, https://doi.org/10.1093/jxb/erj125, 2006.
Zweifel, R., Drew, D. M., Schweingruber, F., and Downes, G. M.: Xylem as the
main origin of stem radius changes in Eucalyptus, Funct. Plant. Biol., 41,
520–534, https://doi.org/10.1071/FP13240, 2014a.
Zweifel, R., Drew, D. M., Schweingruber F., and Downes, G. M.: Xylem as the
main origin of stem radius changes in Eucalyptus, Funct. Plant. Biol.,
41, 520–53, https://doi.org/10.1071/FP13240, 2014b.
Zweifel, R., Sterck, F., Braun, S., Buchmann, N., Eugster, W., Gessler, A.,
Häni, M., Peters, R. L., Walthert, L., Wilhelm, M., Ziemińska, K., and
Etzold, S.: Why trees grow at night, New Phytol., 231, 2174–2185,
https://doi.org/10.1111/nph.17552, 2021.
Short summary
Understanding how vegetation might respond to climate change is especially important in arctic–alpine ecosystems, where major shifts in shrub growth have been observed. We studied how such changes come to pass and how future changes might look by measuring hourly variations in the stem diameter of dwarf shrubs from one common species. From these data, we are able to discern information about growth mechanisms and can thus show the complexity of shrub growth and micro-environment relations.
Understanding how vegetation might respond to climate change is especially important in...
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