High riverine CO₂ emissions at the permafrost boundary of Western Siberia |
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Author: | Serikova, S.1; Pokrovsky, O.S.2; Ala-Aho, P.3,4; |
Organizations: |
1Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, Linnaeus väg 6, 901 87 Umeå, Sweden 2GET UMR 5563 CNRS, Geoscience and Environment, University of Toulouse, 14 Avenue Edouard Belin, 31400 Toulouse, France 3University of Aberdeen, Kings College, Old Aberdeen, AB24 3UE Aberdeen, Scotland
4Water Resources and Environmental Engineering Research Unit, Faculty of Technology, University of Oulu, PO Box 4300, 900 14 Oulu, Finland
5Organization of the Russian Academy of Sciences A.M. Obukhov Institute of Atmospheric Physics RAS, Pyzhyovskiy pereulok 3, 119 017 Moscow, Russia 6BIO-GEO-CLIM Laboratory, Tomsk State University, Lenina 36, 634 050 Tomsk, Russia 7Institute of Monitoring of Climatic and Ecological Systems (IMCES) SB RAS, Akademichesky Avenue 10/3, 634 055, Tomsk, Russia 8Department of Forest Ecology and Management, The Swedish University of Agricultural Sciences, Skogsmarksgränd 17, 901 83 Umeå, Sweden 9N. Laverov Federal Center for Integrated Arctic Research, IEPS, Russian Academy of Sciences, 23 Nab. Sev. Dviny, Arkhangelsk, Russia 10IGB Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 125 87 Berlin, Germany 11Humboldt University Berlin, Unter den Linden 6, 100 99 Berlin, Germany |
Format: | article |
Version: | accepted version |
Access: | open |
Online Access: | PDF Full Text (PDF, 0.7 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe2018121450881 |
Language: | English |
Published: |
Springer Nature,
2018
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Publish Date: | 2019-03-03 |
Description: |
AbstractThe fate of the vast stocks of organic carbon stored in permafrost of the Western Siberian Lowland, the world’s largest peatland, is uncertain. Specifically, the amount of greenhouse gas emissions from rivers in the region is unknown. Here we present estimates of annual CO₂ emissions from 58 rivers across all permafrost zones of the Western Siberian Lowland, between 56 and 67° N. We find that emissions peak at the permafrost boundary, and decrease where permafrost is more prevalent and in colder climatic conditions. River CO₂ emissions were high, and on average two times greater than downstream carbon export. We suggest that high emissions and emission/export ratios are a result of warm temperatures and the long transit times of river water. We show that rivers in the Western Siberian Lowland play an important role in the carbon cycle by degassing terrestrial carbon before its transport to the Arctic Ocean, and suggest that changes in both temperature and precipitation are important for understanding and predicting high-latitude river CO₂ emissions in a changing climate. see all
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Series: |
Nature geoscience |
ISSN: | 1752-0894 |
ISSN-E: | 1752-0908 |
ISSN-L: | 1752-0894 |
Volume: | 11 |
Pages: | 825 - 829 |
DOI: | 10.1038/s41561-018-0218-1 |
OADOI: | https://oadoi.org/10.1038/s41561-018-0218-1 |
Type of Publication: |
A1 Journal article – refereed |
Field of Science: |
1171 Geosciences 1172 Environmental sciences 218 Environmental engineering |
Subjects: | |
Funding: |
The study was part of the JPI Climate initiative, financially supported by VR (the Swedish Research Council) grant no. 325-2014-6898 to J.K. Additional funding from RNF (RSCF) grant no. 18-17-00237, RFBR grant no. 17-55-16008 and RF Federal Target Program RFMEFI58717X0036 ‘Kolmogorov’ to O.S.P. and S.N.K. as well as NERC grant no. NE/M019896/1 to C.S. is acknowledged. |
Copyright information: |
© University of Oulu, 2019. This publication is copyrighted. You may download, display and print it for your own personal use. Commercial use is prohibited. |