Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1038/s41561-022-01087-x

Аннотация: Siberian forests are generally thought to have acted as an important carbon sink over recent decades, but exposure to severe droughts and fire disturbances may have impacted their carbon dynamics. Limited available forest inventories mean the carbon balance remains uncertain. Here we analyse annual live and dead above-ground carbonПоказать полностьюchanges derived from low-frequency passive microwave observations from 2010 to 2019. We find that during this period, the carbon balance of Siberian forests was close to neutral, with the forests acting as a small carbon sink of +0.02+0.01+0.03 PgC yr−1. Carbon storage in dead wood increased, but this was largely offset by a decrease in live biomass. Substantial losses of live above-ground carbon are attributed to fire and drought, such as the widespread fires in northern Siberia in 2012 and extreme drought in eastern Siberia in 2015. These live above-ground carbon losses contrast with ‘greening’ trends seen in leaf area index over the same period, a decoupling explained by faster post-disturbance recovery of leaf area than live above-ground carbon. Our study highlights the vulnerability of large forest carbon stores in Siberia to climate-induced disturbances, challenging the persistence of the carbon sink in this region of the globe. © 2022, The Author(s), under exclusive licence to Springer Nature Limited.

Журнал: Nature Geoscience

ISSN журнала: 17520894

Издатель: Nature Research

• Fan L. (Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, China)
• Wigneron J.-P. (INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA, Villenave-d’Ornon, France, Université de Bordeaux, Talence, France)
• Ciais P. (Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France)
• Chave J. (Laboratoire Evolution and Diversité Biologique, CNRS, IRD, UT3, Université Paul Sabatier, Toulouse, France)
• Brandt M. (Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark)
• Sitch S. (College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom)
• Yue C. (State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China)
• Bastos A. (Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany)
• Li X. (National Tibetan Plateau Data Center (TPDC), State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China)
• Qin Y. (Department of Microbiology and Plant Biology, Center for Earth Observation and Modeling, University of Oklahoma, Norman, OK, United States)
• Yuan W. (Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China)
• Schepaschenko D. (International Institute for Applied Systems Analysis, Laxenburg, Austria, V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, Krasnoyarsk, Russian Federation, Siberian Federal University, Krasnoyarsk, Russian Federation)
• Mukhortova L. (V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, Krasnoyarsk, Russian Federation)
• Li X. (INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA, Villenave-d’Ornon, France, Université de Bordeaux, Talence, France)
• Liu X. (INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA, Villenave-d’Ornon, France, Université de Bordeaux, Talence, France)
• Wang M. (INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA, Villenave-d’Ornon, France)
• Frappart F. (INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA, Villenave-d’Ornon, France, Université de Bordeaux, Talence, France)
• Xiao X. (Department of Microbiology and Plant Biology, Center for Earth Observation and Modeling, University of Oklahoma, Norman, OK, United States)
• Chen J. (Department of Geography and Program in Planning, University of Toronto, Toronto, ON, Canada)
• Ma M. (Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, China)
• Wen J. (State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China)
• Chen X. (Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China)
• Yang H. (Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany)
• van Wees D. (Department of Earth Sciences, Vrije Universiteit, Amsterdam, Netherlands)
• Fensholt R. (Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark)

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