Articles | Volume 15, issue 17
https://doi.org/10.5194/bg-15-5329-2018
© Author(s) 2018. 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-15-5329-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Sep 2018
Research article |
| 03 Sep 2018
| 03 Sep 2018
Patterns of soil respiration and its temperature sensitivity in grassland ecosystems across China
Jiguang Feng
Institute of Ecology, College of Urban and Environmental Sciences,
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Jingsheng Wang
Qianyanzhou Ecological
Research Station, Key Laboratory of Ecosystem Network Observation and
Modeling, Institute of Geographic Sciences and Natural Resources Research,
Chinese Academy of Sciences, Beijing 100101, China
Yanjun Song
Forest Ecology
and Forest Management Group, Wageningen University and Research Centre, PO
Box 47, 6700 AA Wageningen, the Netherlands
Institute of Ecology, College of Urban and Environmental Sciences,
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Related authors
Jingqi Chen, Qiufang Zhang, Hui Dai, Jiguang Feng, Quanxin Zeng, Xueqi Sun, Yuanzhen Peng, Wenwei Chen, Biao Zhu, and Yuehmin Chen
EGUsphere, https://doi.org/10.5194/egusphere-2023-2460, https://doi.org/10.5194/egusphere-2023-2460, 2023
Preprint archived
Short summary
Short summary
Given the complex nature of SOC pool, we conducted a field experiment to assess the effect of N addition on SOC fractions. We found that N addition reduces the persistence and increases the nutrient density of SOC. A trade-off between SOC bridging and adsorption keeps MAOC constant. These findings provide mechanistic insights into the effects of N addition on the SOC pool and are pivotal for understanding SOC dynamics especially in future scenarios with more frequent and severe perturbations.
Jingqi Chen, Qiufang Zhang, Hui Dai, Jiguang Feng, Quanxin Zeng, Xueqi Sun, Yuanzhen Peng, Wenwei Chen, Biao Zhu, and Yuehmin Chen
EGUsphere, https://doi.org/10.5194/egusphere-2023-2460, https://doi.org/10.5194/egusphere-2023-2460, 2023
Preprint archived
Short summary
Short summary
Given the complex nature of SOC pool, we conducted a field experiment to assess the effect of N addition on SOC fractions. We found that N addition reduces the persistence and increases the nutrient density of SOC. A trade-off between SOC bridging and adsorption keeps MAOC constant. These findings provide mechanistic insights into the effects of N addition on the SOC pool and are pivotal for understanding SOC dynamics especially in future scenarios with more frequent and severe perturbations.
Di Tian, Peng Li, Wenjing Fang, Jun Xu, Yongkai Luo, Zhengbing Yan, Biao Zhu, Jingjing Wang, Xiaoniu Xu, and Jingyun Fang
Biogeosciences, 14, 3461–3469, https://doi.org/10.5194/bg-14-3461-2017, https://doi.org/10.5194/bg-14-3461-2017, 2017
Short summary
Short summary
Previous studies have mainly focused on the effects of N deposition on tree growth in temperate and tropical forests, however, the responses of different trees and understory plants in subtropical forests to N deposition remain unknown. We conducted a 3.4-year experimentally simulated N enrichment and found that small trees were hindered while medium and large trees were not significantly affected by N fertilization. Additionally, the growth of understories was suppressed by N fertilization.
Related subject area
Biogeochemistry: Greenhouse Gases
Large contribution of soil N2O emission to the global warming potential of a large-scale oil palm plantation despite changing from conventional to reduced management practices
Identifying landscape hot and cold spots of soil greenhouse gas fluxes by combining field measurements and remote sensing data
Enhanced Southern Ocean CO2 outgassing as a result of stronger and poleward shifted southern hemispheric westerlies
Spatial and temporal variability of methane emissions and environmental conditions in a hyper-eutrophic fishpond
Optical and radar Earth observation data for upscaling methane emissions linked to permafrost degradation in sub-Arctic peatlands in northern Sweden
Herbivore–shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic
Methane emissions due to reservoir flushing: a significant emission pathway?
Carbon dioxide and methane fluxes from mounds of African fungus-growing termites
Diel and seasonal methane dynamics in the shallow and turbulent Wadden Sea
Diurnal versus spatial variability of greenhouse gas emissions from an anthropogenic modified German lowland river
Technical note: Skirt chamber – an open dynamic method for the rapid and minimally intrusive measurement of greenhouse gas emissions from peatlands
Resolving heterogeneous fluxes from tundra halves the growing season carbon budget
Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary
Lawns and meadows in urban green space – A comparison from greenhouse gas, drought resilience and biodiversity perspectives
Reviews and syntheses: Recent advances in microwave remote sensing in support of terrestrial carbon cycle science in Arctic–boreal regions
Simulated methane emissions from Arctic ponds are highly sensitive to warming
Water-table-driven greenhouse gas emission estimates guide peatland restoration at national scale
Relationships between greenhouse gas production and landscape position during short-term permafrost thaw under anaerobic conditions in the Lena Delta
Carbon emissions and radiative forcings from tundra wildfires in the Yukon–Kuskokwim River Delta, Alaska
Carbon monoxide (CO) cycling in the Fram Strait, Arctic Ocean
Post-flooding disturbance recovery promotes carbon capture in riparian zones
Regional Assessment and Uncertainty Analysis of Carbon and Nitrogen Balances at cropland scale using the ecosystem model LandscapeDNDC
Meteorological responses of carbon dioxide and methane fluxes in the terrestrial and aquatic ecosystems of a subarctic landscape
Carbon emission and export from the Ket River, western Siberia
Evaluation of wetland CH4 in the Joint UK Land Environment Simulator (JULES) land surface model using satellite observations
Greenhouse gas fluxes in mangrove forest soil in an Amazon estuary
Temporal patterns and drivers of CO2 emission from dry sediments in a groyne field of a large river
Effects of water table level and nitrogen deposition on methane and nitrous oxide emissions in an alpine peatland
Highest methane concentrations in an Arctic river linked to local terrestrial inputs
Seasonal study of the small-scale variability in dissolved methane in the western Kiel Bight (Baltic Sea) during the European heatwave in 2018
Trace gas fluxes from tidal salt marsh soils: implications for carbon–sulfur biogeochemistry
Spatial and temporal variation in δ13C values of methane emitted from a hemiboreal mire: methanogenesis, methanotrophy, and hysteresis
Intercomparison of methods to estimate gross primary production based on CO2 and COS flux measurements
Lateral carbon export has low impact on the net ecosystem carbon balance of a polygonal tundra catchment
The effect of static chamber base on N2O flux in drip irrigation
Controls on autotrophic and heterotrophic respiration in an ombrotrophic bog
Episodic N2O emissions following tillage of a legume–grass cover crop mixture
Variation in CO2 and CH4 fluxes among land cover types in heterogeneous Arctic tundra in northeastern Siberia
Response of vegetation and carbon fluxes to brown lemming herbivory in northern Alaska
Sources of nitrous oxide and the fate of mineral nitrogen in subarctic permafrost peat soils
Data-based estimates of interannual sea–air CO2 flux variations 1957–2020 and their relation to environmental drivers
Evaluating alternative ebullition models for predicting peatland methane emission and its pathways via data–model fusion
Excess soil moisture and fresh carbon input are prerequisites for methane production in podzolic soil
Low biodegradability of particulate organic carbon mobilized from thaw slumps on the Peel Plateau, NT, and possible chemosynthesis and sorption effects
Grazing enhances carbon cycling but reduces methane emission during peak growing season in the Siberian Pleistocene Park tundra site
Ideas and perspectives: Enhancing research and monitoring of carbon pools and land-to-atmosphere greenhouse gases exchange in developing countries
Ignoring carbon emissions from thermokarst ponds results in overestimation of tundra net carbon uptake
Quantification of potential methane emissions associated with organic matter amendments following oxic-soil inundation
Assessing the spatial and temporal variability of greenhouse gas emissions from different configurations of on-site wastewater treatment system using discrete and continuous gas flux measurement
Dimethylated sulfur compounds in the Peruvian upwelling system
Guantao Chen, Edzo Veldkamp, Muhammad Damris, Bambang Irawan, Aiyen Tjoa, and Marife D. Corre
Biogeosciences, 21, 513–529, https://doi.org/10.5194/bg-21-513-2024, https://doi.org/10.5194/bg-21-513-2024, 2024
Short summary
Short summary
We established an oil palm management experiment in a large-scale oil palm plantation in Jambi, Indonesia. We recorded oil palm fruit yield and measured soil CO2, N2O, and CH4 fluxes. After 4 years of treatment, compared with conventional fertilization with herbicide weeding, reduced fertilization with mechanical weeding did not reduce yield and soil greenhouse gas emissions, which highlights the legacy effects of over a decade of conventional management prior to the start of the experiment.
Elizabeth Gachibu Wangari, Ricky Mwangada Mwanake, Tobias Houska, David Kraus, Gretchen Maria Gettel, Ralf Kiese, Lutz Breuer, and Klaus Butterbach-Bahl
Biogeosciences, 20, 5029–5067, https://doi.org/10.5194/bg-20-5029-2023, https://doi.org/10.5194/bg-20-5029-2023, 2023
Short summary
Short summary
Agricultural landscapes act as sinks or sources of the greenhouse gases (GHGs) CO2, CH4, or N2O. Various physicochemical and biological processes control the fluxes of these GHGs between ecosystems and the atmosphere. Therefore, fluxes depend on environmental conditions such as soil moisture, soil temperature, or soil parameters, which result in large spatial and temporal variations of GHG fluxes. Here, we describe an example of how this variation may be studied and analyzed.
Laurie C. Menviel, Paul Spence, Andrew E. Kiss, Matthew A. Chamberlain, Hakase Hayashida, Matthew H. England, and Darryn Waugh
Biogeosciences, 20, 4413–4431, https://doi.org/10.5194/bg-20-4413-2023, https://doi.org/10.5194/bg-20-4413-2023, 2023
Short summary
Short summary
As the ocean absorbs 25% of the anthropogenic emissions of carbon, it is important to understand the impact of climate change on the flux of carbon between the ocean and the atmosphere. Here, we use a very high-resolution ocean, sea-ice, carbon cycle model to show that the capability of the Southern Ocean to uptake CO2 has decreased over the last 40 years due to a strengthening and poleward shift of the southern hemispheric westerlies. This trend is expected to continue over the coming century.
Petr Znachor, Jiří Nedoma, Vojtech Kolar, and Anna Matoušů
Biogeosciences, 20, 4273–4288, https://doi.org/10.5194/bg-20-4273-2023, https://doi.org/10.5194/bg-20-4273-2023, 2023
Short summary
Short summary
We conducted intensive spatial sampling of the hypertrophic fishpond to better understand the spatial dynamics of methane fluxes and environmental heterogeneity in fishponds. The diffusive fluxes of methane accounted for only a minor fraction of the total fluxes and both varied pronouncedly within the pond and over the studied summer season. This could be explained only by the water depth. Wind substantially affected temperature, oxygen and chlorophyll a distribution in the pond.
Sofie Sjögersten, Martha Ledger, Matthias Siewert, Betsabé de la Barreda-Bautista, Andrew Sowter, David Gee, Giles Foody, and Doreen S. Boyd
Biogeosciences, 20, 4221–4239, https://doi.org/10.5194/bg-20-4221-2023, https://doi.org/10.5194/bg-20-4221-2023, 2023
Short summary
Short summary
Permafrost thaw in Arctic regions is increasing methane emissions, but quantification is difficult given the large and remote areas impacted. We show that UAV data together with satellite data can be used to extrapolate emissions across the wider landscape as well as detect areas at risk of higher emissions. A transition of currently degrading areas to fen type vegetation can increase emission by several orders of magnitude, highlighting the importance of quantifying areas at risk.
Cole G. Brachmann, Tage Vowles, Riikka Rinnan, Mats P. Björkman, Anna Ekberg, and Robert G. Björk
Biogeosciences, 20, 4069–4086, https://doi.org/10.5194/bg-20-4069-2023, https://doi.org/10.5194/bg-20-4069-2023, 2023
Short summary
Short summary
Herbivores change plant communities through grazing, altering the amount of CO2 and plant-specific chemicals (termed VOCs) emitted. We tested this effect by excluding herbivores and studying the CO2 and VOC emissions. Herbivores reduced CO2 emissions from a meadow community and altered VOC composition; however, community type had the strongest effect on the amount of CO2 and VOCs released. Herbivores can mediate greenhouse gas emissions, but the effect is marginal and community dependent.
Ole Lessmann, Jorge Encinas Fernández, Karla Martínez-Cruz, and Frank Peeters
Biogeosciences, 20, 4057–4068, https://doi.org/10.5194/bg-20-4057-2023, https://doi.org/10.5194/bg-20-4057-2023, 2023
Short summary
Short summary
Based on a large dataset of seasonally resolved methane (CH4) pore water concentrations in a reservoir's sediment, we assess the significance of CH4 emissions due to reservoir flushing. In the studied reservoir, CH4 emissions caused by one flushing operation can represent 7 %–14 % of the annual CH4 emissions and depend on the timing of the flushing operation. In reservoirs with high sediment loadings, regular flushing may substantially contribute to the overall CH4 emissions.
Matti Räsänen, Risto Vesala, Petri Rönnholm, Laura Arppe, Petra Manninen, Markus Jylhä, Jouko Rikkinen, Petri Pellikka, and Janne Rinne
Biogeosciences, 20, 4029–4042, https://doi.org/10.5194/bg-20-4029-2023, https://doi.org/10.5194/bg-20-4029-2023, 2023
Short summary
Short summary
Fungus-growing termites recycle large parts of dead plant material in African savannas and are significant sources of greenhouse gases. We measured CO2 and CH4 fluxes from their mounds and surrounding soils in open and closed habitats. The fluxes scale with mound volume. The results show that emissions from mounds of fungus-growing termites are more stable than those from other termites. The soil fluxes around the mound are affected by the termite colonies at up to 2 m distance from the mound.
Tim René de Groot, Anne Margriet Mol, Katherine Mesdag, Pierre Ramond, Rachel Ndhlovu, Julia Catherine Engelmann, Thomas Röckmann, and Helge Niemann
Biogeosciences, 20, 3857–3872, https://doi.org/10.5194/bg-20-3857-2023, https://doi.org/10.5194/bg-20-3857-2023, 2023
Short summary
Short summary
This study investigates methane dynamics in the Wadden Sea. Our measurements revealed distinct variations triggered by seasonality and tidal forcing. The methane budget was higher in warmer seasons but surprisingly high in colder seasons. Methane dynamics were amplified during low tides, flushing the majority of methane into the North Sea or releasing it to the atmosphere. Methanotrophic activity was also elevated during low tide but mitigated only a small fraction of the methane efflux.
Matthias Koschorreck, Norbert Kamjunke, Uta Koedel, Michael Rode, Claudia Schuetze, and Ingeborg Bussmann
Biogeosciences Discuss., https://doi.org/10.5194/bg-2023-176, https://doi.org/10.5194/bg-2023-176, 2023
Revised manuscript accepted for BG
Short summary
Short summary
We measured the emission of carbon dioxide (CO2) and methane (CH4) from different sites at the German River Elbe over 3 days to find out what is more important for quantification: small scale spatial variability or diurnal temporal variability. We found that CO2 emissions were very different between day and night while CH4 emissions were more different between sites. Dried out river sediments contributed to CO2 emissions while the side areas of the river were important CH4 sources.
Frederic Thalasso, Brenda Riquelme, Andrés Gómez, Roy Mackenzie, Francisco Javier Aguirre, Jorge Hoyos-Santillan, Ricardo Rozzi, and Armando Sepulveda-Jauregui
Biogeosciences, 20, 3737–3749, https://doi.org/10.5194/bg-20-3737-2023, https://doi.org/10.5194/bg-20-3737-2023, 2023
Short summary
Short summary
A robust skirt-chamber design to capture and quantify greenhouse gas emissions from peatlands is presented. Compared to standard methods, this design improves the spatial resolution of field studies in remote locations while minimizing intrusion.
Sarah M. Ludwig, Luke Schiferl, Jacqueline Hung, Susan M. Natali, and Roisin Commane
Biogeosciences Discuss., https://doi.org/10.5194/bg-2023-119, https://doi.org/10.5194/bg-2023-119, 2023
Revised manuscript accepted for BG
Short summary
Short summary
Landscapes are often assumed to be homogeneous when using eddy covariance fluxes, which can lead to biases when calculating carbon budgets. In this study we report eddy covariance carbon fluxes from heterogeneous tundra. We used the footprints of each flux observation to un-mix the fluxes coming from components of the landscape. We identified and quantified hot spots of carbon emissions in the landscape. Accurately scaling with landscape heterogeneity yielded half as much regional carbon uptake.
Gesa Schulz, Tina Sanders, Yoana G. Voynova, Hermann W. Bange, and Kirstin Dähnke
Biogeosciences, 20, 3229–3247, https://doi.org/10.5194/bg-20-3229-2023, https://doi.org/10.5194/bg-20-3229-2023, 2023
Short summary
Short summary
Nitrous oxide (N2O) is an important greenhouse gas. However, N2O emissions from estuaries underlie significant uncertainties due to limited data availability and high spatiotemporal variability. We found the Elbe Estuary (Germany) to be a year-round source of N2O, with the highest emissions in winter along with high nitrogen loads. However, in spring and summer, N2O emissions did not decrease alongside lower nitrogen loads because organic matter fueled in situ N2O production along the estuary.
Justine Trémeau, Beñat Olascoaga, Leif Backman, Esko Karvinen, Henriikka Vekuri, and Liisa Kulmala
Biogeosciences Discuss., https://doi.org/10.5194/bg-2023-107, https://doi.org/10.5194/bg-2023-107, 2023
Revised manuscript accepted for BG
Short summary
Short summary
We studied urban lawns and meadows in Helsinki Metropolitan Area, Finland. We found that meadows are more resistant to drought events, but that they do not increase carbon sequestration compared with lawns. Moreover, the transformation from a lawn to a meadow did not demonstrate any negative climate effects in terms of greenhouse gas emissions. Thus, considering biodiversity, climate warming and carbon neutrality, it is necessary to find the right trade-off between lawns and meadows in cities.
Alex Mavrovic, Oliver Sonnentag, Juha Lemmetyinen, Jennifer L. Baltzer, Christophe Kinnard, and Alexandre Roy
Biogeosciences, 20, 2941–2970, https://doi.org/10.5194/bg-20-2941-2023, https://doi.org/10.5194/bg-20-2941-2023, 2023
Short summary
Short summary
This review supports the integration of microwave spaceborne information into carbon cycle science for Arctic–boreal regions. The microwave data record spans multiple decades with frequent global observations of soil moisture and temperature, surface freeze–thaw cycles, vegetation water storage, snowpack properties, and land cover. This record holds substantial unexploited potential to better understand carbon cycle processes.
Zoé Rehder, Thomas Kleinen, Lars Kutzbach, Victor Stepanenko, Moritz Langer, and Victor Brovkin
Biogeosciences, 20, 2837–2855, https://doi.org/10.5194/bg-20-2837-2023, https://doi.org/10.5194/bg-20-2837-2023, 2023
Short summary
Short summary
We use a new model to investigate how methane emissions from Arctic ponds change with warming. We find that emissions increase substantially. Under annual temperatures 5 °C above present temperatures, pond methane emissions are more than 3 times higher than now. Most of this increase is caused by an increase in plant productivity as plants provide the substrate microbes used to produce methane. We conclude that vegetation changes need to be included in predictions of pond methane emissions.
Julian Koch, Lars Elsgaard, Mogens H. Greve, Steen Gyldenkærne, Cecilie Hermansen, Gregor Levin, Shubiao Wu, and Simon Stisen
Biogeosciences, 20, 2387–2403, https://doi.org/10.5194/bg-20-2387-2023, https://doi.org/10.5194/bg-20-2387-2023, 2023
Short summary
Short summary
Utilizing peatlands for agriculture leads to large emissions of greenhouse gases worldwide. The emissions are triggered by lowering the water table, which is a necessary step in order to make peatlands arable. Many countries aim at reducing their emissions by restoring peatlands, which can be achieved by stopping agricultural activities and thereby raising the water table. We estimate a total emission of 2.6 Mt CO2-eq for organic-rich peatlands in Denmark and a potential reduction of 77 %.
Mélissa Laurent, Matthias Fuchs, Tanja Herbst, Alexandra Runge, Susanne Liebner, and Claire C. Treat
Biogeosciences, 20, 2049–2064, https://doi.org/10.5194/bg-20-2049-2023, https://doi.org/10.5194/bg-20-2049-2023, 2023
Short summary
Short summary
In this study we investigated the effect of different parameters (temperature, landscape position) on the production of greenhouse gases during a 1-year permafrost thaw experiment. For very similar carbon and nitrogen contents, our results show a strong heterogeneity in CH4 production, as well as in microbial abundance. According to our study, these differences are mainly due to the landscape position and the hydrological conditions established as a result of the topography.
Michael Moubarak, Seeta Sistla, Stefano Potter, Susan M. Natali, and Brendan M. Rogers
Biogeosciences, 20, 1537–1557, https://doi.org/10.5194/bg-20-1537-2023, https://doi.org/10.5194/bg-20-1537-2023, 2023
Short summary
Short summary
Tundra wildfires are increasing in frequency and severity with climate change. We show using a combination of field measurements and computational modeling that tundra wildfires result in a positive feedback to climate change by emitting significant amounts of long-lived greenhouse gasses. With these effects, attention to tundra fires is necessary for mitigating climate change.
Hanna I. Campen, Damian L. Arévalo-Martínez, and Hermann W. Bange
Biogeosciences, 20, 1371–1379, https://doi.org/10.5194/bg-20-1371-2023, https://doi.org/10.5194/bg-20-1371-2023, 2023
Short summary
Short summary
Carbon monoxide (CO) is a climate-relevant trace gas emitted from the ocean. However, oceanic CO cycling is understudied. Results from incubation experiments conducted in the Fram Strait (Arctic Ocean) indicated that (i) pH did not affect CO cycling and (ii) enhanced CO production and consumption were positively correlated with coloured dissolved organic matter and nitrate concentrations. This suggests microbial CO uptake to be the driving factor for CO cycling in the Arctic Ocean.
Yihong Zhu, Ruihua Liu, Huai Zhang, Shaoda Liu, Zhengfeng Zhang, Fei-Hai Yu, and Timothy G. Gregoire
Biogeosciences, 20, 1357–1370, https://doi.org/10.5194/bg-20-1357-2023, https://doi.org/10.5194/bg-20-1357-2023, 2023
Short summary
Short summary
With global warming, the risk of flooding is rising, but the response of the carbon cycle of aquatic and associated riparian systems
to flooding is still unclear. Based on the data collected in the Lijiang, we found that flooding would lead to significant carbon emissions of fluvial areas and riparian areas during flooding, but carbon capture may happen after flooding. In the riparian areas, the surviving vegetation, especially clonal plants, played a vital role in this transformation.
Odysseas Sifounakis, Edwin Haas, Klaus Butterbach-Bahl, and Maria P. Papadopoulou
Biogeosciences Discuss., https://doi.org/10.5194/bg-2023-52, https://doi.org/10.5194/bg-2023-52, 2023
Revised manuscript accepted for BG
Short summary
Short summary
We performed a full assessment of the carbon and nitrogen cycle of a cropland ecosystem. An uncertainty analysis and quantification of all carbon and nitrogen fluxes has been deployed. The inventory simulations include greenhouse gas emissions of N2O, NH3 volatilization and NO3 leaching from arable land cultivation for Greece. The inventory reports as well changes of soil organic carbon and nitrogen stocks in arable soils.
Lauri Heiskanen, Juha-Pekka Tuovinen, Henriikka Vekuri, Aleksi Räsänen, Tarmo Virtanen, Sari Juutinen, Annalea Lohila, Juha Mikola, and Mika Aurela
Biogeosciences, 20, 545–572, https://doi.org/10.5194/bg-20-545-2023, https://doi.org/10.5194/bg-20-545-2023, 2023
Short summary
Short summary
We measured and modelled the CO2 and CH4 fluxes of the terrestrial and aquatic ecosystems of the subarctic landscape for 2 years. The landscape was an annual CO2 sink and a CH4 source. The forest had the largest contribution to the landscape-level CO2 sink and the peatland to the CH4 emissions. The lakes released 24 % of the annual net C uptake of the landscape back to the atmosphere. The C fluxes were affected most by the rainy peak growing season of 2017 and the drought event in July 2018.
Artem G. Lim, Ivan V. Krickov, Sergey N. Vorobyev, Mikhail A. Korets, Sergey Kopysov, Liudmila S. Shirokova, Jan Karlsson, and Oleg S. Pokrovsky
Biogeosciences, 19, 5859–5877, https://doi.org/10.5194/bg-19-5859-2022, https://doi.org/10.5194/bg-19-5859-2022, 2022
Short summary
Short summary
In order to quantify C transport and emission and main environmental factors controlling the C cycle in Siberian rivers, we investigated the largest tributary of the Ob River, the Ket River basin, by measuring spatial and seasonal variations in carbon CO2 and CH4 concentrations and emissions together with hydrochemical analyses. The obtained results are useful for large-scale modeling of C emission and export fluxes from permafrost-free boreal rivers of an underrepresented region of the world.
Robert J. Parker, Chris Wilson, Edward Comyn-Platt, Garry Hayman, Toby R. Marthews, A. Anthony Bloom, Mark F. Lunt, Nicola Gedney, Simon J. Dadson, Joe McNorton, Neil Humpage, Hartmut Boesch, Martyn P. Chipperfield, Paul I. Palmer, and Dai Yamazaki
Biogeosciences, 19, 5779–5805, https://doi.org/10.5194/bg-19-5779-2022, https://doi.org/10.5194/bg-19-5779-2022, 2022
Short summary
Short summary
Wetlands are the largest natural source of methane, one of the most important climate gases. The JULES land surface model simulates these emissions. We use satellite data to evaluate how well JULES reproduces the methane seasonal cycle over different tropical wetlands. It performs well for most regions; however, it struggles for some African wetlands influenced heavily by river flooding. We explain the reasons for these deficiencies and highlight how future development will improve these areas.
Saúl Edgardo Martínez Castellón, José Henrique Cattanio, José Francisco Berrêdo, Marcelo Rollnic, Maria de Lourdes Ruivo, and Carlos Noriega
Biogeosciences, 19, 5483–5497, https://doi.org/10.5194/bg-19-5483-2022, https://doi.org/10.5194/bg-19-5483-2022, 2022
Short summary
Short summary
We seek to understand the influence of climatic seasonality and microtopography on CO2 and CH4 fluxes in an Amazonian mangrove. Topography and seasonality had a contrasting influence when comparing the two gas fluxes: CO2 fluxes were greater in high topography in the dry period, and CH4 fluxes were greater in the rainy season in low topography. Only CO2 fluxes were correlated with soil organic matter, the proportion of carbon and nitrogen, and redox potential.
Matthias Koschorreck, Klaus Holger Knorr, and Lelaina Teichert
Biogeosciences, 19, 5221–5236, https://doi.org/10.5194/bg-19-5221-2022, https://doi.org/10.5194/bg-19-5221-2022, 2022
Short summary
Short summary
At low water levels, parts of the bottom of rivers fall dry. These beaches or mudflats emit the greenhouse gas carbon dioxide (CO2) to the atmosphere. We found that those emissions are caused by microbial reactions in the sediment and that they change with time. Emissions were influenced by many factors like temperature, water level, rain, plants, and light.
Wantong Zhang, Zhengyi Hu, Joachim Audet, Thomas A. Davidson, Enze Kang, Xiaoming Kang, Yong Li, Xiaodong Zhang, and Jinzhi Wang
Biogeosciences, 19, 5187–5197, https://doi.org/10.5194/bg-19-5187-2022, https://doi.org/10.5194/bg-19-5187-2022, 2022
Short summary
Short summary
This work focused on the CH4 and N2O emissions from alpine peatlands in response to the interactive effects of altered water table levels and increased nitrogen deposition. Across the 2-year mesocosm experiment, nitrogen deposition showed nonlinear effects on CH4 emissions and linear effects on N2O emissions, and these N effects were associated with the water table levels. Our results imply the future scenario of strengthened CH4 and N2O emissions from an alpine peatland.
Karel Castro-Morales, Anna Canning, Sophie Arzberger, Will A. Overholt, Kirsten Küsel, Olaf Kolle, Mathias Göckede, Nikita Zimov, and Arne Körtzinger
Biogeosciences, 19, 5059–5077, https://doi.org/10.5194/bg-19-5059-2022, https://doi.org/10.5194/bg-19-5059-2022, 2022
Short summary
Short summary
Permafrost thaw releases methane that can be emitted into the atmosphere or transported by Arctic rivers. Methane measurements are lacking in large Arctic river regions. In the Kolyma River (northeast Siberia), we measured dissolved methane to map its distribution with great spatial detail. The river’s edge and river junctions had the highest methane concentrations compared to other river areas. Microbial communities in the river showed that the river’s methane likely is from the adjacent land.
Sonja Gindorf, Hermann W. Bange, Dennis Booge, and Annette Kock
Biogeosciences, 19, 4993–5006, https://doi.org/10.5194/bg-19-4993-2022, https://doi.org/10.5194/bg-19-4993-2022, 2022
Short summary
Short summary
Methane is a climate-relevant greenhouse gas which is emitted to the atmosphere from coastal areas such as the Baltic Sea. We measured the methane concentration in the water column of the western Kiel Bight. Methane concentrations were higher in September than in June. We found no relationship between the 2018 European heatwave and methane concentrations. Our results show that the methane distribution in the water column is strongly affected by temporal and spatial variabilities.
Margaret Capooci and Rodrigo Vargas
Biogeosciences, 19, 4655–4670, https://doi.org/10.5194/bg-19-4655-2022, https://doi.org/10.5194/bg-19-4655-2022, 2022
Short summary
Short summary
Tidal salt marsh soil emits greenhouse gases, as well as sulfur-based gases, which play roles in global climate but are not well studied as they are difficult to measure. Traditional methods of measuring these gases worked relatively well for carbon dioxide, but less so for methane, nitrous oxide, carbon disulfide, and dimethylsulfide. High variability of trace gases complicates the ability to accurately calculate gas budgets and new approaches are needed for monitoring protocols.
Janne Rinne, Patryk Łakomiec, Patrik Vestin, Joel D. White, Per Weslien, Julia Kelly, Natascha Kljun, Lena Ström, and Leif Klemedtsson
Biogeosciences, 19, 4331–4349, https://doi.org/10.5194/bg-19-4331-2022, https://doi.org/10.5194/bg-19-4331-2022, 2022
Short summary
Short summary
The study uses the stable isotope 13C of carbon in methane to investigate the origins of spatial and temporal variation in methane emitted by a temperate wetland ecosystem. The results indicate that methane production is more important for spatial variation than methane consumption by micro-organisms. Temporal variation on a seasonal timescale is most likely affected by more than one driver simultaneously.
Kukka-Maaria Kohonen, Roderick Dewar, Gianluca Tramontana, Aleksanteri Mauranen, Pasi Kolari, Linda M. J. Kooijmans, Dario Papale, Timo Vesala, and Ivan Mammarella
Biogeosciences, 19, 4067–4088, https://doi.org/10.5194/bg-19-4067-2022, https://doi.org/10.5194/bg-19-4067-2022, 2022
Short summary
Short summary
Four different methods for quantifying photosynthesis (GPP) at ecosystem scale were tested, of which two are based on carbon dioxide (CO2) and two on carbonyl sulfide (COS) flux measurements. CO2-based methods are traditional partitioning, and a new method uses machine learning. We introduce a novel method for calculating GPP from COS fluxes, with potentially better applicability than the former methods. Both COS-based methods gave on average higher GPP estimates than the CO2-based estimates.
Lutz Beckebanze, Benjamin R. K. Runkle, Josefine Walz, Christian Wille, David Holl, Manuel Helbig, Julia Boike, Torsten Sachs, and Lars Kutzbach
Biogeosciences, 19, 3863–3876, https://doi.org/10.5194/bg-19-3863-2022, https://doi.org/10.5194/bg-19-3863-2022, 2022
Short summary
Short summary
In this study, we present observations of lateral and vertical carbon fluxes from a permafrost-affected study site in the Russian Arctic. From this dataset we estimate the net ecosystem carbon balance for this study site. We show that lateral carbon export has a low impact on the net ecosystem carbon balance during the complete study period (3 months). Nevertheless, our results also show that lateral carbon export can exceed vertical carbon uptake at the beginning of the growing season.
Shahar Baram, Asher Bar-Tal, Alon Gal, Shmulik P. Friedman, and David Russo
Biogeosciences, 19, 3699–3711, https://doi.org/10.5194/bg-19-3699-2022, https://doi.org/10.5194/bg-19-3699-2022, 2022
Short summary
Short summary
Static chambers are the most common tool used to measure greenhouse gas (GHG) fluxes. We tested the impact of such chambers on nitrous oxide emissions in drip irrigation. Field measurements and 3-D simulations show that the chamber base drastically affects the water and nutrient distribution in the soil and hence the measured GHG fluxes. A nomogram is suggested to determine the optimal diameter of a cylindrical chamber that ensures minimal disturbance.
Tracy E. Rankin, Nigel T. Roulet, and Tim R. Moore
Biogeosciences, 19, 3285–3303, https://doi.org/10.5194/bg-19-3285-2022, https://doi.org/10.5194/bg-19-3285-2022, 2022
Short summary
Short summary
Peatland respiration is made up of plant and peat sources. How to separate these sources is not well known as peat respiration is not straightforward and is more influenced by vegetation dynamics than previously thought. Results of plot level measurements from shrubs and sparse grasses in a woody bog show that plants' respiration response to changes in climate is related to their different root structures, implying a difference in the mechanisms by which they obtain water resources.
Alison Bressler and Jennifer Blesh
Biogeosciences, 19, 3169–3184, https://doi.org/10.5194/bg-19-3169-2022, https://doi.org/10.5194/bg-19-3169-2022, 2022
Short summary
Short summary
Our field experiment tested if a mixture of a nitrogen-fixing legume and non-legume cover crop could reduce nitrous oxide (N2O) emissions following tillage, compared to the legume grown alone. We found higher N2O following both legume treatments, compared to those without, and lower emissions from the cover crop mixture at one of the two test sites, suggesting that interactions between cover crop types and soil quality influence N2O emissions.
Sari Juutinen, Mika Aurela, Juha-Pekka Tuovinen, Viktor Ivakhov, Maiju Linkosalmi, Aleksi Räsänen, Tarmo Virtanen, Juha Mikola, Johanna Nyman, Emmi Vähä, Marina Loskutova, Alexander Makshtas, and Tuomas Laurila
Biogeosciences, 19, 3151–3167, https://doi.org/10.5194/bg-19-3151-2022, https://doi.org/10.5194/bg-19-3151-2022, 2022
Short summary
Short summary
We measured CO2 and CH4 fluxes in heterogenous Arctic tundra in eastern Siberia. We found that tundra wetlands with sedge and grass vegetation contributed disproportionately to the landscape's ecosystem CO2 uptake and CH4 emissions to the atmosphere. Moreover, we observed high CH4 consumption in dry tundra, particularly in barren areas, offsetting part of the CH4 emissions from the wetlands.
Jessica Plein, Rulon W. Clark, Kyle A. Arndt, Walter C. Oechel, Douglas Stow, and Donatella Zona
Biogeosciences, 19, 2779–2794, https://doi.org/10.5194/bg-19-2779-2022, https://doi.org/10.5194/bg-19-2779-2022, 2022
Short summary
Short summary
Tundra vegetation and the carbon balance of Arctic ecosystems can be substantially impacted by herbivory. We tested how herbivory by brown lemmings in individual enclosure plots have impacted carbon exchange of tundra ecosystems via altering carbon dioxide (CO2) and methane (CH4) fluxes. Lemmings significantly decreased net CO2 uptake while not affecting CH4 emissions. There was no significant difference in the subsequent growing season due to recovery of the vegetation.
Jenie Gil, Maija E. Marushchak, Tobias Rütting, Elizabeth M. Baggs, Tibisay Pérez, Alexander Novakovskiy, Tatiana Trubnikova, Dmitry Kaverin, Pertti J. Martikainen, and Christina Biasi
Biogeosciences, 19, 2683–2698, https://doi.org/10.5194/bg-19-2683-2022, https://doi.org/10.5194/bg-19-2683-2022, 2022
Short summary
Short summary
N2O emissions from permafrost soils represent up to 11.6 % of total N2O emissions from natural soils, and their contribution to the global N2O budget will likely increase due to climate change. A better understanding of N2O production from permafrost soil is needed to evaluate the role of arctic ecosystems in the global N2O budget. By studying microbial N2O production processes in N2O hotspots in permafrost peatlands, we identified denitrification as the dominant source of N2O in these surfaces.
Christian Rödenbeck, Tim DeVries, Judith Hauck, Corinne Le Quéré, and Ralph F. Keeling
Biogeosciences, 19, 2627–2652, https://doi.org/10.5194/bg-19-2627-2022, https://doi.org/10.5194/bg-19-2627-2022, 2022
Short summary
Short summary
The ocean is an important part of the global carbon cycle, taking up about a quarter of the anthropogenic CO2 emitted by burning of fossil fuels and thus slowing down climate change. However, the CO2 uptake by the ocean is, in turn, affected by variability and trends in climate. Here we use carbon measurements in the surface ocean to quantify the response of the oceanic CO2 exchange to environmental conditions and discuss possible mechanisms underlying this response.
Shuang Ma, Lifen Jiang, Rachel M. Wilson, Jeff P. Chanton, Scott Bridgham, Shuli Niu, Colleen M. Iversen, Avni Malhotra, Jiang Jiang, Xingjie Lu, Yuanyuan Huang, Jason Keller, Xiaofeng Xu, Daniel M. Ricciuto, Paul J. Hanson, and Yiqi Luo
Biogeosciences, 19, 2245–2262, https://doi.org/10.5194/bg-19-2245-2022, https://doi.org/10.5194/bg-19-2245-2022, 2022
Short summary
Short summary
The relative ratio of wetland methane (CH4) emission pathways determines how much CH4 is oxidized before leaving the soil. We found an ebullition modeling approach that has a better performance in deep layer pore water CH4 concentration. We suggest using this approach in land surface models to accurately represent CH4 emission dynamics and response to climate change. Our results also highlight that both CH4 flux and belowground concentration data are important to constrain model parameters.
Mika Korkiakoski, Tiia Määttä, Krista Peltoniemi, Timo Penttilä, and Annalea Lohila
Biogeosciences, 19, 2025–2041, https://doi.org/10.5194/bg-19-2025-2022, https://doi.org/10.5194/bg-19-2025-2022, 2022
Short summary
Short summary
We measured CH4 fluxes and production and oxidation potentials from irrigated and non-irrigated podzolic soil in a boreal forest. CH4 sink was smaller at the irrigated site but did not cause CH4 emission, with one exception. We also showed that under laboratory conditions, not only wet conditions, but also fresh carbon, are needed to make podzolic soil into a CH4 source. Our study provides important data for improving the process models describing the upland soil CH4 dynamics.
Sarah Shakil, Suzanne E. Tank, Jorien E. Vonk, and Scott Zolkos
Biogeosciences, 19, 1871–1890, https://doi.org/10.5194/bg-19-1871-2022, https://doi.org/10.5194/bg-19-1871-2022, 2022
Short summary
Short summary
Permafrost thaw-driven landslides in the western Arctic are increasing organic carbon delivered to headwaters of drainage networks in the western Canadian Arctic by orders of magnitude. Through a series of laboratory experiments, we show that less than 10 % of this organic carbon is likely to be mineralized to greenhouse gases during transport in these networks. Rather most of the organic carbon is likely destined for burial and sequestration for centuries to millennia.
Wolfgang Fischer, Christoph K. Thomas, Nikita Zimov, and Mathias Göckede
Biogeosciences, 19, 1611–1633, https://doi.org/10.5194/bg-19-1611-2022, https://doi.org/10.5194/bg-19-1611-2022, 2022
Short summary
Short summary
Arctic permafrost ecosystems may release large amounts of carbon under warmer future climates and may therefore accelerate global climate change. Our study investigated how long-term grazing by large animals influenced ecosystem characteristics and carbon budgets at a Siberian permafrost site. Our results demonstrate that such management can contribute to stabilizing ecosystems to keep carbon in the ground, particularly through drying soils and reducing methane emissions.
Dong-Gill Kim, Ben Bond-Lamberty, Youngryel Ryu, Bumsuk Seo, and Dario Papale
Biogeosciences, 19, 1435–1450, https://doi.org/10.5194/bg-19-1435-2022, https://doi.org/10.5194/bg-19-1435-2022, 2022
Short summary
Short summary
As carbon (C) and greenhouse gas (GHG) research has adopted appropriate technology and approach (AT&A), low-cost instruments, open-source software, and participatory research and their results were well accepted by scientific communities. In terms of cost, feasibility, and performance, the integration of low-cost and low-technology, participatory and networking-based research approaches can be AT&A for enhancing C and GHG research in developing countries.
Lutz Beckebanze, Zoé Rehder, David Holl, Christian Wille, Charlotta Mirbach, and Lars Kutzbach
Biogeosciences, 19, 1225–1244, https://doi.org/10.5194/bg-19-1225-2022, https://doi.org/10.5194/bg-19-1225-2022, 2022
Short summary
Short summary
Arctic permafrost landscapes feature many water bodies. In contrast to the terrestrial parts of the landscape, the water bodies release carbon to the atmosphere. We compare carbon dioxide and methane fluxes from small water bodies to the surrounding tundra and find not accounting for the carbon dioxide emissions leads to an overestimation of the tundra uptake by 11 %. Consequently, changes in hydrology and water body distribution may substantially impact the overall carbon budget of the Arctic.
Brian Scott, Andrew H. Baldwin, and Stephanie A. Yarwood
Biogeosciences, 19, 1151–1164, https://doi.org/10.5194/bg-19-1151-2022, https://doi.org/10.5194/bg-19-1151-2022, 2022
Short summary
Short summary
Carbon dioxide and methane contribute to global warming. What can we do? We can build wetlands: they store carbon dioxide and should cause global cooling. But when first built they produce excess methane. Eventually built wetlands will cause cooling, but it may take decades or even centuries. How we build wetlands matters. We show that a common practice, using organic matter, such as manure, can make a big difference whether or not the wetlands we build start global cooling within our lifetime.
Jan Knappe, Celia Somlai, and Laurence W. Gill
Biogeosciences, 19, 1067–1085, https://doi.org/10.5194/bg-19-1067-2022, https://doi.org/10.5194/bg-19-1067-2022, 2022
Short summary
Short summary
Two domestic on-site wastewater treatment systems have been monitored for greenhouse gas (carbon dioxide, methane and nitrous oxide) emissions coming from the process units, soil and vent pipes. This has enabled the net greenhouse gas per person to be quantified for the first time, as well as the impact of pre-treatment on the effluent before being discharged to soil. These decentralised wastewater treatment systems serve approx. 20 % of the population in both Europe and the United States.
Yanan Zhao, Dennis Booge, Christa A. Marandino, Cathleen Schlundt, Astrid Bracher, Elliot L. Atlas, Jonathan Williams, and Hermann W. Bange
Biogeosciences, 19, 701–714, https://doi.org/10.5194/bg-19-701-2022, https://doi.org/10.5194/bg-19-701-2022, 2022
Short summary
Short summary
We present here, for the first time, simultaneously measured dimethylsulfide (DMS) seawater concentrations and DMS atmospheric mole fractions from the Peruvian upwelling region during two cruises in December 2012 and October 2015. Our results indicate low oceanic DMS concentrations and atmospheric DMS molar fractions in surface waters and the atmosphere, respectively. In addition, the Peruvian upwelling region was identified as an insignificant source of DMS emissions during both periods.
Cited articles
Bahn, M., Janssens, I. A., Reichstein, M., Smith, P., and Trumbore, S. E.:
Soil respiration across scales: towards an integration of patterns and
processes, New Phytol., 186, 292–296, https://doi.org/10.1111/j.1469-8137.2010.03237.x,
2010.
Bahn, M., Rodeghiero, M., Andersondunn, M., Dore, S., Gimeno, C.,
Drösler, M., Williams, M., Ammann, C., Berninger, F., and Flechard, C.:
Soil respiration in european grasslands in relation to climate and assimilate
supply, Ecosystems, 11, 1352–1367, https://doi.org/10.1007/s10021-008-9198-0, 2008.
Bekku, Y., Koizumi, H., Oikawa, T., and Iwaki, H.: Examination of four
methods for measuring soil respiration, Appl. Soil Ecol., 5, 247–254,
https://doi.org/10.1016/S0929-1393(96)00131-X, 1997.
Bond-Lamberty, B. and Thomson, A.: A global database of soil respiration
data, Biogeosciences, 7, 1915–1926, https://doi.org/10.5194/bg-7-1915-2010,
2010.
Boone, R. D., Nadelhoffer, K. J., Canary, J. D., and Kaye, J. P.: Roots exert
a strong influence on the temperature sensitivity of soil respiration,
Nature, 396, 570–572, https://doi.org/10.1038/25119, 1998.
Chen, H. and Tian, H. Q.: Does a general temperature-dependent Q10 model
of soil respiration exist at biome and global scale?, J. Integr. Plant Biol.,
47, 1288–1302, https://doi.org/10.1111/j.1744-7909.2005.00211.x, 2005.
Chen, J., Hou, F., Chen, X., Wan, X., and Millner, J.: Stocking rate and
grazing season modify soil respiration on the Loess Plateau, China, Rangel.
Ecol. Manag., 68, 48–53, https://doi.org/10.1016/j.rama.2014.12.002, 2015.
Chen, J., Zhou, X., Wang, J., Hruska, T., Shi, W., Cao, J., Zhang, B., Xu,
G., Chen, Y., and Luo, Y.: Grazing exclusion reduced soil respiration but
increased its temperature sensitivity in a meadow grassland on the Tibetan
Plateau, Ecol. Evol., 6, 675–687, https://doi.org/10.1002/ece3.1867, 2016.
Chen, Q., Wang, Q., Han, X., Wan, S., and Li, L.: Temporal and spatial
variability and controls of soil respiration in a temperate steppe in
northern China, Global Biogeochem. Cy., 24, GB2010,
https://doi.org/10.1029/2009GB003538, 2010.
Chen, S., Huang, Y., Zou, J., Shen, Q., Hu, Z., Qin, Y., Chen, H., and Pan,
G.: Modeling interannual variability of global soil respiration from climate
and soil properties, Agr. Forest Meteorol., 150, 590–605,
https://doi.org/10.1016/j.agrformet.2010.02.004, 2010.
Chen, S., Zou, J., Hu, Z., Chen, H., and Lu, Y.: Global annual soil
respiration in relation to climate, soil properties and vegetation
characteristics: Summary of available data, Agri. Forest Meteorol., 198–199,
335–346, https://doi.org/10.1016/j.agrformet.2014.08.020, 2014.
Chen, W., Wolf, B., Zheng, X., Yao, Z., Butterbach-Bahl, K., Brueggemann, N.,
Han, S., Liu, C., and Han, X.: Carbon dioxide emission from temperate
semiarid steppe during the non-growing season, Atmos. Environ., 64, 141–149,
https://doi.org/10.1016/j.atmosenv.2012.10.004, 2013.
Chen, Y., Ding, J., Peng, Y., Li, F., Yang, G., Liu, L., Qin, S., Fang, K.,
and Yang, Y.: Patterns and drivers of soil microbial communities in Tibetan
alpine and global terrestrial ecosystems, J. Biogeogr., 43, 2027–2039,
https://doi.org/10.1111/jbi.12806, 2016.
Chen, Z., Wang, Y., Wang, S., and Zhou, X.: Preliminary studies on the
classification of grassland ecosystem in China, Acta Agrestia Sinica, 10,
81–86, 2002. (in Chinese with English abstract)
Colman, B. P. and Schimel, J. P.: Drivers of microbial respiration and net N
mineralization at the continental scale, Soil Biol. Biochem., 60, 65–76,
https://doi.org/10.1016/j.soilbio.2013.01.003, 2013.
Davidson, E. A., Belk, E., and Boone, R. D.: Soil water content and
temperature as independent or confounded factors controlling soil respiration
in a temperate mixed hardwood forest, Glob. Change Biol., 4, 217–227,
https://doi.org/10.1046/j.1365-2486.1998.00128.x, 1998.
Davidson, E. A. and Janssens, I. A.: Temperature sensitivity of soil carbon
decomposition and feedbacks to climate change, Nature, 440, 165–173,
https://doi.org/10.1038/nature04514, 2006.
Davidson, E. A., Janssens, I. A., and Luo, Y. Q.: On the variability of
respiration in terrestrial ecosystems: moving beyond Q10, Glob. Change
Biol., 12, 154–164, https://doi.org/10.1111/j.1365-2486.2005.01065.x , 2006.
Davidson, E. A., Savage, K., Verchot, L. V., and Navarro, R.: Minimizing
artifacts and biases in chamber-based measurements of soil respiration, Agr.
Forest Meteorol., 113, 21–37, https://doi.org/10.1016/S0168-1923(02)00100-4, 2002.
Ding, J., Chen, L., Zhang, B., Liu, L., Yang, G., Fang, K., Chen, Y., Li, F.,
Kou, D., Ji, C., Luo, Y., and Yang, Y.: Linking temperature sensitivity of
soil CO2 release to substrate, environmental, and microbial
properties across alpine ecosystems, Global Biogeochem. Cy., 30, 1310–1323,
https://doi.org/10.1002/2015GB005333, 2016.
Frank, A. B. and Dugas, W. A.: Carbon dioxide fluxes over a northern,
semiarid, mixed-grass prairie, Agr. Forest Meteorol., 108, 317–326,
https://doi.org/10.1016/S0168-1923(01)00238-6, 2001.
Gershenson, A., Bader, N. E., and Cheng, W.: Effects of substrate
availability on the temperature sensitivity of soil organic matter
decomposition, Glob. Change Biol., 15, 176–183,
https://doi.org/10.1111/j.1365-2486.2008.01827.x, 2009.
Graf, A., Weihermüller, L., Huisman, J. A., Herbst, M., Bauer, J., and
Vereecken, H.: Measurement depth effects on the apparent temperature
sensitivity of soil respiration in field studies, Biogeosciences, 5,
1175–1188, https://doi.org/10.5194/bg-5-1175-2008, 2008.
Hibbard, K. A., Law, B. E., Reichstein, M., and Sulzman, J.: An analysis of
soil respiration across northern hemisphere temperate ecosystems,
Biogeochemistry, 73, 29–70, https://doi.org/10.1007/s10533-004-2946-0, 2005.
Hursh, A., Ballantyne, A., Cooper, L., Maneta, M., Kimball, J., and Watts,
J.: The sensitivity of soil respiration to soil temperature, moisture, and
carbon supply at the global scale, Glob. Change Biol., 23, 2090–2103,
https://doi.org/10.1111/gcb.13489, 2017.
Jia, B., Zhou, G., Wang, Y., Wang, F., and Wang, X.: Effects of temperature
and soil water-content on soil respiration of grazed and ungrazed
Leymus chinensis steppes, Inner Mongolia. J. Arid Environ., 67,
60–76, https://doi.org/10.1016/j.jaridenv.2006.02.002, 2006.
Kirschbaum, M. U. F.: Will changes in soil organic carbon act as a positive
or negative feedback on global warming? Biogeochemistry, 48, 21–51,
https://doi.org/10.1023/A:1006238902976, 2000.
Kuzyakov, Y.: Sources of CO2 efflux from soil and review of
partitioning methods, Soil Biol. Biochem., 38, 425–448,
https://doi.org/10.1016/j.soilbio.2005.08.020, 2006.
Lenton, T. M. and Huntingford, C.: Global terrestrial carbon storage and
uncertainties in its temperature sensitivity examined with a simple model,
Glob. Change Biol., 9, 1333–1352, https://doi.org/10.1046/j.1365-2486.2003.00674.x,
2003.
Li, Z., Wang, X., Zhang, R., Zhang, J., and Tian, C.: Contrasting diurnal
variations in soil organic carbon decomposition and root respiration due to a
hysteresis effect with soil temperature in a Gossypium s. (cotton)
plantation, Plant Soil, 343, 347–355, https://doi.org/10.1007/s11104-011-0722-1, 2011.
Liu, X., Zhang, W., Zhang, B., Yang, Q., Chang, J., and Hou, K.: Diurnal
variation in soil respiration under different land uses on Taihang Mountain,
North China, Atmos. Environ., 125, 283–292,
https://doi.org/10.1016/j.atmosenv.2015.11.034, 2016.
Luo, Y. and Zhou, X.: Soil respiration and the environment, Academic
Press/Elsevier, San Diego, USA, 257–305, 2006.
Ma, A., Yu, G., He, N., Wang, Q., and Peng, S.: Above- and below-ground
biomass relationships in China's grassland vegetation, Quaternary Sci., 34,
769–776, https://doi.org/10.3969/j.issn.1001-7410.2014.04.09, 2014. (in Chinese with
English abstract)
Ni, J.: Carbon storage in grasslands of China, J. Arid Environ., 50,
205–218, https://doi.org/10.1006/jare.2001.0902, 2002.
Pavelka, M., Acosta, M., Marek, M. V., Kutsch, W., and Janous, D.: Dependence
of the Q10 values on the depth of the soil temperature measuring point,
Plant Soil, 292, 171–179, https://doi.org/10.1007/s11104-007-9213-9, 2007.
Peng, F., You, Q., Xu, M., Guo, J., Wang, T., and Xue, X.: Effects of warming
and clipping on ecosystem carbon fluxes across two hydrologically contrasting
years in an alpine meadow of the Qinghai-Tibet Plateau, Plos One, 9, e109319,
https://doi.org/10.1371/journal.pone.0109319, 2014.
Peng, S., Piao, S., Wang, T., Sun, J., and Shen, Z.: Temperature sensitivity
of soil respiration in different ecosystems in China, Soil Biol. Biochem.,
41, 1008–1014, https://doi.org/10.1016/j.soilbio.2008.10.023, 2009.
Pribyl, D. W.: A critical review of the conventional SOC to SOM conversion
factor, Geoderma, 156, 75–83, https://doi.org/10.1016/j.geoderma.2010.02.003, 2010.
Raich, J. W. and Potter, C. S.: Global patterns of carbon dioxide emissions
from soils, Global Biogeochem. Cy., 9, 23–36, https://doi.org/10.1029/94GB02723, 1995.
Raich, J. W. and Schlesinger, W. H.: The global carbon dioxide flux in soil
respiration and its relationship to vegetation and climate, Tellus, 44,
81–99, https://doi.org/10.1034/j.1600-0889.1992.t01-1-00001.x, 1992.
Reichstein, M., Subke, J. A., Angeli, A. C., and Tenhunen, J. D.: Does the
temperature sensitivity of decomposition of soil organic matter depend upon
water content, soil horizon, or incubation time?, Glob. Change Biol., 11,
1754–1767, https://doi.org/10.1111/j.1365-2486.2005.001010.x, 2005.
Ryan, M. G. and Law, B. E.: Interpreting, measuring, and modeling soil
respiration, Biogeochemistry, 73, 3–27, https://doi.org/10.1007/s10533-004-5167-7, 2005.
Schindlbacher, A., Zechmeister-Boltenstern, S., and Jandl, R.: Carbon losses
due to soil warming: Do autotrophic and heterotrophic soil respiration
respond equally?, Glob. Change Biol., 15, 901–913,
https://doi.org/10.1111/j.1365-2486.2008.01757.x, 2009.
Shen, H., Zhu, Y., Zhao, X., Geng, X., Gao, S., and Fang, J.: Analysis of
current grassland resources in China, Chin. Sci. Bull., 61, 139–154,
https://doi.org/10.1360/N972015-00732, 2016. (in Chinese with English abstract)
Sims, P. L. and Bradford, J. A.: Carbon dioxide fluxes in a southern plains
prairie, Agr. Forest Meteorol., 109, 117–134,
https://doi.org/10.1016/S0168-1923(01)00264-7, 2001.
Song, X., Peng, C., Zhao, Z., Zhang, Z., Guo, B., Wang, W., Jiang, H., and
Zhu Q.: Quantification of soil respiration in forest ecosystems across china,
Atmos. Environ., 94, 546–551, https://doi.org/10.1016/j.atmosenv.2014.05.071, 2014.
Subke, J. A. and Bahn, M.: On the “temperature sensitivity” of soil
respiration: Can we use the immeasurable to predict the unknown? Soil Biol.
Biochem., 42, 1653–1656, https://doi.org/10.1016/j.soilbio.2010.05.026, 2010.
Subke, J. A., Inglima, I., and Cotrufo, M. F.: Trends and methodological
impacts in soil CO2 efflux partitioning: A metaanalytical review,
Glob. Change Biol., 12, 921–943, https://doi.org/10.1111/j.1365-2486.2006.01117.x ,
2006.
Turner, B. L.: Variation in pH optima of hydrolytic enzyme activities in
tropical rain forest soils, Appl. Environ. Microb., 76, 6485–6493,
https://doi.org/10.1128/AEM.00560-10, 2010.
Van's Hoff, J. H.: Lectures on Theoretical and Physical Chemistry, Part 1:
Chemical Dynamics, Edward Arnold, London, UK, 224–229, 1898.
Wan, S., Norby, R. J., Ledford, J., and Weltzin, J. F.: Responses of soil
respiration to elevated CO2, air warming, and changing soil water
availability in a model old-field grassland, Glob. Change Biol., 13,
2411–2424, https://doi.org/10.1111/j.1365-2486.2007.01433.x, 2007.
Wang, B., Zha, T. S., Jia, X., Wu, B., Zhang, Y. Q., and Qin, S. G.: Soil
moisture modifies the response of soil respiration to temperature in a desert
shrub ecosystem, Biogeosciences, 11, 259–268,
https://doi.org/10.5194/bg-11-259-2014, 2014.
Wang, M., Liu, X., Zhang, J., Li, X., Wang, G., Li, X., and Lu, X.: Diurnal
and seasonal dynamics of soil respiration at temperate Leymus chinensis meadow steppes in western Songnen Plain, China, Chin. Geogr. Sci.,
24, 287–296, https://doi.org/10.1007/s11769-014-0682-5, 2014.
Wang, M., Liu, X., Zhang, J., Li, X., Wang, G., Li, X., and Chen, W.: Soil
respiration associated with plant succession at the meadow steppes in Songnen
Plain, Northeast China, J. Plant Ecol., 8, 51–60, https://doi.org/10.1093/jpe/rtu006,
2015.
Wang, W. and Fang, J.: Soil respiration and human effects on global
grasslands, Global Planet. Change, 67, 20–28,
https://doi.org/10.1016/j.gloplacha.2008.12.011, 2009.
Wang, X., Piao, S., Ciais, P., Janssens, I. A., Reichstein, M., Peng, S., and
Wang, T.: Are ecological gradients in seasonal Q10 of soil respiration
explained by climate or by vegetation seasonality?, Soil Biol. Biochem., 42,
1728–1734, https://doi.org/10.1016/j.soilbio.2010.06.008, 2010.
Wang, Z., Ji, L., Hou, X., and Schellenberg, M. P.: Soil respiration in
semiarid temperate grasslands under various land management, Plos One, 11,
e0147987, https://doi.org/10.1371/journal.pone.0147987, 2016.
Xu, W., Li, X., Liu, W., Li, L., Hou, L., Shi, H., Xia, J., Liu, D., Zhang,
H., Chen, Y., Cai, W., Fu, Y., and Yuan, W.: Spatial patterns of soil and
ecosystem respiration regulated by biological and environmental variables
along a precipitation gradient in semi-arid grasslands in China, Ecol. Res.,
31, 505–513, https://doi.org/10.1007/s11284-016-1355-x, 2016.
Xu, Z., Tang, S., Xiong, L., Yang, W., Yin, H., Tu, L., Wu, F., Chen, L., and
Tan, B.: Temperature sensitivity of soil respiration in china's forest
ecosystems: patterns and controls, Appl. Soil Ecol., 93, 105–110,
https://doi.org/10.1016/j.apsoil.2015.04.008, 2015.
Yim, M. H., Joo, S. J., and Nakane, K.: Comparison of field methods for
measuring soil respiration: a static alkali absorption method and two dynamic
closed chamber methods, Forest Ecol. Manage., 170, 189–197,
https://doi.org/10.1016/S0378-1127(01)00773-3, 2002.
Yuste, J. C., Janssens, I. A., Carrara, A., and Ceulemans, R.: Annual
Q10 of soil respiration reflects plant phenological patterns as well as
temperature sensitivity, Glob. Change Biol., 10, 161–169,
https://doi.org/10.1111/j.1529-8817.2003.00727.x, 2004.
Zhang, H., Fan, J., and Shao, Q.: Land use/land cover change in the grassland
restoration program areas in China, 2000–2010, Prog. Geogr. 34, 840–853,
https://doi.org/10.18306/dlkxjz.2015.07.006, 2015. (in Chinese with English abstract)
Zhang, Y., Guo, S., Liu, Q., Jiang, J., Wang, R., and Li, N.: Responses of
soil respiration to land use conversions in degraded ecosystem of the
semi-arid Loess Plateau, Ecol. Eng., 74, 196–205,
https://doi.org/10.1016/j.ecoleng.2014.10.003, 2015.
Zhao, J., Li, R., Li, X., and Tian, L.: Environmental controls on soil
respiration in alpine meadow along a large altitudinal gradient on the
central Tibetan Plateau, Catena, 159, 84–92,
https://doi.org/10.1016/j.catena.2017.08.007, 2017.
Zhou, T., Shi, P., Hui, D., and Luo, Y.: Global pattern of temperature
sensitivity of soil heterotrophic respiration (Q10) and its implications
for carbon-climate feedback, J. Geophys. Res-Biogeo., 114, 271–274,
https://doi.org/10.1029/2008JG000850, 2009.
Zhu, B. and Cheng, W. X.: Rhizosphere priming effect increases the
temperature sensitivity of soil organic matter decomposition, Glob. Change
Biol., 17, 2172–2183, https://doi.org/10.1111/j.1365-2486.2010.02354.x, 2011.
Altmetrics
Final-revised paper
Preprint