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Carbon emission from Western Siberian inland waters

Author

Listed:
  • Jan Karlsson

    (Umeå University)

  • Svetlana Serikova

    (Umeå University
    Swedish Geotechnical Institute)

  • Sergey N. Vorobyev

    (Tomsk State University)

  • Gerard Rocher-Ros

    (Umeå University)

  • Blaize Denfeld

    (Umeå University
    Swedish University of Agricultural Sciences)

  • Oleg S. Pokrovsky

    (Tomsk State University
    GET UMR 5563 CNRS, Geoscience and Environment, University of Toulouse
    Russian Academy of Sciences)

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.

Suggested Citation

  • Jan Karlsson & Svetlana Serikova & Sergey N. Vorobyev & Gerard Rocher-Ros & Blaize Denfeld & Oleg S. Pokrovsky, 2021. "Carbon emission from Western Siberian inland waters," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21054-1
    DOI: 10.1038/s41467-021-21054-1
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    Cited by:

    1. Jannik Martens & Birgit Wild & Igor Semiletov & Oleg V. Dudarev & Örjan Gustafsson, 2022. "Circum-Arctic release of terrestrial carbon varies between regions and sources," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Egor Dyukarev & Evgeny Zarov & Pavel Alekseychik & Jelmer Nijp & Nina Filippova & Ivan Mammarella & Ilya Filippov & Wladimir Bleuten & Vitaly Khoroshavin & Galina Ganasevich & Anastasiya Meshcheryakov, 2021. "The Multiscale Monitoring of Peatland Ecosystem Carbon Cycling in the Middle Taiga Zone of Western Siberia: The Mukhrino Bog Case Study," Land, MDPI, vol. 10(8), pages 1-26, August.
    3. Rashit M. Hantemirov & Christophe Corona & Sébastien Guillet & Stepan G. Shiyatov & Markus Stoffel & Timothy J. Osborn & Thomas M. Melvin & Ludmila A. Gorlanova & Vladimir V. Kukarskih & Alexander Y. , 2022. "Current Siberian heating is unprecedented during the past seven millennia," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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