Massive remobilization of permafrost carbon during post-glacial warming

T. Tesi, F. Muschitiello, R. H. Smittenberg, M. Jakobsson, J. E. Vonk, P.J. Hill, A. Andersson, N. Kirchner, R. Noormets, O. Dudarev, I. Semiletov, H. Gustafsson

Research output: Contribution to JournalArticleAcademicpeer-review

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.

Original languageEnglish
Article number13653
JournalNature Communications
Volume7
DOIs
Publication statusPublished - 29 Nov 2016

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permafrost
Permafrost
Carbon
heating
carbon
soils
Soils
Arctic Ocean
Thawing
respiration
destabilization
Oceans and Seas
Biological materials
Respiration
indication
Soil
melting

Cite this

Tesi, T., Muschitiello, F., Smittenberg, R. H., Jakobsson, M., Vonk, J. E., Hill, P. J., ... Gustafsson, H. (2016). Massive remobilization of permafrost carbon during post-glacial warming. Nature Communications, 7, [13653]. https://doi.org/10.1038/ncomms13653
Tesi, T. ; Muschitiello, F. ; Smittenberg, R. H. ; Jakobsson, M. ; Vonk, J. E. ; Hill, P.J. ; Andersson, A. ; Kirchner, N. ; Noormets, R. ; Dudarev, O. ; Semiletov, I. ; Gustafsson, H. / Massive remobilization of permafrost carbon during post-glacial warming. In: Nature Communications. 2016 ; Vol. 7.
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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.",
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Tesi, T, Muschitiello, F, Smittenberg, RH, Jakobsson, M, Vonk, JE, Hill, PJ, Andersson, A, Kirchner, N, Noormets, R, Dudarev, O, Semiletov, I & Gustafsson, H 2016, 'Massive remobilization of permafrost carbon during post-glacial warming' Nature Communications, vol. 7, 13653. https://doi.org/10.1038/ncomms13653

Massive remobilization of permafrost carbon during post-glacial warming. / Tesi, T.; Muschitiello, F.; Smittenberg, R. H.; Jakobsson, M.; Vonk, J. E.; Hill, P.J.; Andersson, A.; Kirchner, N.; Noormets, R.; Dudarev, O.; Semiletov, I.; Gustafsson, H.

In: Nature Communications, Vol. 7, 13653, 29.11.2016.

Research output: Contribution to JournalArticleAcademicpeer-review

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AU - Andersson, A.

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AU - Noormets, R.

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AU - Semiletov, I.

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Tesi T, Muschitiello F, Smittenberg RH, Jakobsson M, Vonk JE, Hill PJ et al. Massive remobilization of permafrost carbon during post-glacial warming. Nature Communications. 2016 Nov 29;7. 13653. https://doi.org/10.1038/ncomms13653