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Carbon emission from Western Siberian inland waters

Karlsson, Jan and Serikova, Svetlana and Vorobyev, Sergey N. and Rocher-Ros, Gerard and Denfeld, Blaize and Pokrovsky, Oleg S. (2021). Carbon emission from Western Siberian inland waters. Nature Communications. 12 , 825
[Research article]

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Abstract

High-latitude regions play a key role in the carbon (C) cycle and climate system. An important question is the degree of mobilization and atmospheric release of vast soil C stocks, partly stored in permafrost, with amplified warming of these regions. A fraction of this C is exported to inland waters and emitted to the atmosphere, yet these losses are poorly constrained and seldom accounted for in assessments of high-latitude C balances. This is particularly relevant for Western Siberia, with its extensive peatland C stocks, which can be strongly sensitive to the ongoing changes in climate. Here we quantify C emission from inland waters, including the Ob' River (Arctic's largest watershed), across all permafrost zones of Western Siberia. We show that the inland water C emission is high (0.08-0.10 Pg C yr(-1)) and of major significance in the regional C cycle, largely exceeding (7-9 times) C export to the Arctic Ocean and reaching nearly half (35-50%) of the region's land C uptake. This important role of C emission from inland waters highlights the need for coupled land-water studies to understand the contemporary C cycle and its response to warming. Rivers and lakes are thought to be a major conduit of loss for the massive amounts of carbon locked away in high-latitude systems, but such losses are poorly constrained. Here the authors quantify carbon emissions from rivers and lakes across Western Siberia, finding that emissions are high and exceed carbon export to the Arctic Ocean.

Authors/Creators:Karlsson, Jan and Serikova, Svetlana and Vorobyev, Sergey N. and Rocher-Ros, Gerard and Denfeld, Blaize and Pokrovsky, Oleg S.
Title:Carbon emission from Western Siberian inland waters
Series Name/Journal:Nature Communications
Year of publishing :2021
Volume:12
Article number:825
Number of Pages:8
Publisher:NATURE RESEARCH
ISSN:2041-1723
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
URN:NBN:urn:nbn:se:slu:epsilon-p-111015
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111015
Additional ID:
Type of IDID
DOI10.1038/s41467-021-21054-1
Web of Science (WoS)000617499600027
ID Code:22752
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:12 Mar 2021 11:03
Metadata Last Modified:12 Mar 2021 11:11

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