18506 7 100269 2 307401 document 100269 Siberian carbon sink reduced by forest disturbances_Preprint.pdf application/pdf 59f233ab3dfa46c06a169ee0e02a018b MD5 1487643 2022-12-16 08:14:18 https://pure.iiasa.ac.at/id/eprint/18506/1/Siberian%20carbon%20sink%20reduced%20by%20forest%20disturbances_Preprint.pdf 18506 1 1 application/pdf text en public arr

Siberian carbon sink reduced by forest disturbances_Preprint.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/100269 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/100269 http://eprints.org/relation/ismediumThumbnailVersionOf https://pure.iiasa.ac.at/id/document/100269 100274 2 307407 document 100274 small.jpg image/png f9844050a9c7d24f9bbf97426cb05c71 MD5 1871 2022-12-16 08:14:57 https://pure.iiasa.ac.at/id/eprint/18506/6/small.jpg 18506 6 6 image/png other Thumbnails conversion from text to thumbnail_small en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/100269 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/100269 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/100269 archive 353 disk0/00/01/85/06 2022-12-15 09:46:26 2024-09-09 12:45:57 2022-12-15 09:46:26 article show Fan L. Wigneron J.-P. Ciais P. Chave J. Brandt M. Sitch S. Yue C. Bastos A. Li X. Qin Y. Yuan W. Shchepashchenko D. 7435 0000-0002-7814-4990 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. pub ASA NODES BNR AFE 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. 2023 published Nature Publishing Group doi:10.1038/s41561-022-01087-x 279 public Nature Geoscience 16 56-62 TRUE 1752-0908 info:eu-repo/semantics/article