Siberian carbon sink reduced by forest disturbances

Autor: Lei Fan, Jean-Pierre Wigneron, Philippe Ciais, Jérome Chave, Martin Brandt, Stephen Sitch, Chao Yue, Ana Bastos, Xin Li, Yuanwei Qin, Wenping Yuan, Dmitry Schepaschenko, Liudmila Mukhortova, Xiaojun Li, Xiangzhuo Liu, Mengjia Wang, Frédéric Frappart, Xiangming Xiao, Jingming Chen, Mingguo Ma, Jianguang Wen, Xiuzhi Chen, Hui Yang, Dave van Wees, Rasmus Fensholt
Přispěvatelé: Southwest University [Chongqing], Interactions Sol Plante Atmosphère (UMR ISPA), Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Department of Geosciences and Natural Resource Management [Copenhagen] (IGN), Faculty of Science [Copenhagen], University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH), College of Life and Environmental Sciences [Exeter], University of Exeter, Northwest A and F University, Max Planck Institute for Biogeochemistry (MPI-BGC), Max-Planck-Gesellschaft, Institute of Tibetan Plateau Research, Chinese Academy of Sciences [Beijing] (CAS), Department of Microbiology and Plant Biology, University of Oklahoma (OU), National Sun Yat-Sen University (NSYSU), Sun Yat-Sen University [Guangzhou] (SYSU), V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences (SB RAS), Siberian Federal University (SibFU), University of Toronto, State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth (RADI), Chinese Academy of Sciences [Beijing] (CAS)-Chinese Academy of Sciences [Beijing] (CAS), Vrije Universiteit Brussel (VUB), IT University of Copenhagen (ITU), Earth Sciences
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Fan, L, Wigneron, J P, Ciais, P, Chave, J, Brandt, M, Sitch, S, Yue, C, Bastos, A, Li, X, Qin, Y, Yuan, W, Schepaschenko, D, Mukhortova, L, Li, X, Liu, X, Wang, M, Frappart, F, Xiao, X, Chen, J, Ma, M, Wen, J, Chen, X, Yang, H, van Wees, D & Fensholt, R 2023, ' Siberian carbon sink reduced by forest disturbances ', Nature Geoscience, vol. 16, pp. 56–62 . https://doi.org/10.1038/s41561-022-01087-x
Nature Geoscience
Fan, L, Wigneron, J P, Ciais, P, Chave, J, Brandt, M, Sitch, S, Yue, C, Bastos, A, Li, X, Qin, Y, Yuan, W, Schepaschenko, D, Mukhortova, L, Li, X, Liu, X, Wang, M, Frappart, F, Xiao, X, Chen, J, Ma, M, Wen, J, Chen, X, Yang, H, van Wees, D & Fensholt, R 2023, ' Siberian carbon sink reduced by forest disturbances ', Nature Geoscience, vol. 16, no. 1, pp. 56-62 . https://doi.org/10.1038/s41561-022-01087-x
Nature Geoscience, 2023, 16, pp.56-62. ⟨10.1038/s41561-022-01087-x⟩
Nature Geoscience, 16(1), 56-62. Nature Publishing Group
ISSN: 1752-0908
1752-0894
DOI: 10.1038/s41561-022-01087-x
Popis: International audience; 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 carbon changes 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+0.03+0.01 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.
Databáze: OpenAIRE
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