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Massive remobilization of permafrost carbon during post-glacial warming

Author

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  • T. Tesi

    (Stockholm University
    Bolin Centre for Climate Research, Stockholm University
    Institute of Marine Sciences, National Research Council (ISMAR-CNR))

  • F. Muschitiello

    (Bolin Centre for Climate Research, Stockholm University
    Lamont-Doehrty Earth Observatory, Columbia University
    Uni Research Climate
    Stockholm University)

  • R. H. Smittenberg

    (Bolin Centre for Climate Research, Stockholm University
    Stockholm University)

  • M. Jakobsson

    (Bolin Centre for Climate Research, Stockholm University
    Stockholm University
    University Centre in Svalbard (UNIS))

  • J. E. Vonk

    (Faculty of Earth and Life Sciences, VU University Amsterdam)

  • P. Hill

    (University Centre in Svalbard (UNIS))

  • A. Andersson

    (Stockholm University
    Bolin Centre for Climate Research, Stockholm University)

  • N. Kirchner

    (Bolin Centre for Climate Research, Stockholm University
    Stockholm University)

  • R. Noormets

    (University Centre in Svalbard (UNIS))

  • O. Dudarev

    (Pacific Oceanological Institute FEB RAS
    Tomsk Polytechnic University, Lenina Prospect)

  • I. Semiletov

    (Pacific Oceanological Institute FEB RAS
    Tomsk Polytechnic University, Lenina Prospect
    University of Alaska Fairbanks, Koyukuk Drive)

  • Ö Gustafsson

    (Stockholm University
    Bolin Centre for Climate Research, Stockholm University)

Abstract

Recent hypotheses, based on atmospheric records and models, suggest that permafrost carbon (PF-C) accumulated during the last glaciation may have been an important source for the atmospheric CO2 rise during post-glacial warming. However, direct physical indications for such PF-C release have so far been absent. Here we use the Laptev Sea (Arctic Ocean) as an archive to investigate PF-C destabilization during the last glacial–interglacial period. Our results show evidence for massive supply of PF-C from Siberian soils as a result of severe active layer deepening in response to the warming. Thawing of PF-C must also have brought about an enhanced organic matter respiration and, thus, these findings suggest that PF-C may indeed have been an important source of CO2 across the extensive permafrost domain. The results challenge current paradigms on the post-glacial CO2 rise and, at the same time, serve as a harbinger for possible consequences of the present-day warming of PF-C soils.

Suggested Citation

  • T. Tesi & F. Muschitiello & R. H. Smittenberg & M. Jakobsson & J. E. Vonk & P. Hill & A. Andersson & N. Kirchner & R. Noormets & O. Dudarev & I. Semiletov & Ö Gustafsson, 2016. "Massive remobilization of permafrost carbon during post-glacial warming," Nature Communications, Nature, vol. 7(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13653
    DOI: 10.1038/ncomms13653
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    Cited by:

    1. Junjie Wu & Gesine Mollenhauer & Ruediger Stein & Peter Köhler & Jens Hefter & Kirsten Fahl & Hendrik Grotheer & Bingbing Wei & Seung-Il Nam, 2022. "Deglacial release of petrogenic and permafrost carbon from the Canadian Arctic impacting the carbon cycle," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Jiang Dong & Xuefa Shi & Xun Gong & Anatolii S. Astakhov & Limin Hu & Xiting Liu & Gang Yang & Yixuan Wang & Yuri Vasilenko & Shuqing Qiao & Alexander Bosin & Gerrit Lohmann, 2022. "Enhanced Arctic sea ice melting controlled by larger heat discharge of mid-Holocene rivers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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