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Organic matter composition and greenhouse gas production of thawing subsea permafrost in the Laptev Sea
descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 2022 Italy, Germany, Russian Federation Publisher:Springer Science and Business Media LLCFunded by:EC | CC-TOP
EC| CC-TOP
Authors: Birgit Wild; Natalia Shakhova; Oleg Dudarev; Alexey Ruban; +11 Authors
Birgit Wild; Natalia Shakhova; Oleg Dudarev; Alexey Ruban; Denis Kosmach; Vladimir Tumskoy; Tommaso Tesi; Hanna Grimm; Inna Nybom; Felipe Matsubara; Helena Alexanderson; Martin Jakobsson; Alexey Mazurov; Igor Semiletov; Örjan Gustafsson;
doi: 10.1038/s41467-022-32696-0
pmid: 36030269
pmc: PMC9420143
handle: 20.500.14243/521584 , 10900/139545
doi: 10.1038/s41467-022-32696-0
pmid: 36030269
pmc: PMC9420143
handle: 20.500.14243/521584 , 10900/139545
AbstractSubsea permafrost represents a large carbon pool that might be or become a significant greenhouse gas source. Scarcity of observational data causes large uncertainties. We here use five 21-56 m long subsea permafrost cores from the Laptev Sea to constrain organic carbon (OC) storage and sources, degradation state and potential greenhouse gas production upon thaw. Grain sizes, optically-stimulated luminescence and biomarkers suggest deposition of aeolian silt and fluvial sand over 160 000 years, with dominant fluvial/alluvial deposition of forest- and tundra-derived organic matter. We estimate an annual thaw rate of 1.3 ± 0.6 kg OC m−2 in subsea permafrost in the area, nine-fold exceeding organic carbon thaw rates for terrestrial permafrost. During 20-month incubations, CH4 and CO2 production averaged 1.7 nmol and 2.4 µmol g−1 OC d−1, providing a baseline to assess the contribution of subsea permafrost to the high CH4 fluxes and strong ocean acidification observed in the region.
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Article . 2022 . Peer-reviewed
License: CC BY
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Data sources: Europe PubMed Central
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Other literature type . 2022
License: http://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (http://creativecommons.org/licenses/by/4.0/) .
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Nature Communications
Article . 2022
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Article . 2022
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Article . 2022
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Article . 2022
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Nature Communication...arrow_drop_down
Nature Communications
Article . 2022 . Peer-reviewed
License: CC BY
Data sources: Crossref
Nature Communications
Article . 2022
Data sources: Europe PubMed Central
PubMed Central
Other literature type . 2022
License: http://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (http://creativecommons.org/licenses/by/4.0/) .
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Digital library (repository) of Tomsk State University
Article . 2022
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IRIS Cnr
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Organic matter composition and greenhouse gas production of thawing subsea permafrost in the Laptev Sea
descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 2022 Italy, Germany, Russian Federation Publisher:Springer Science and Business Media LLCFunded by:EC | CC-TOP
EC| CC-TOP
Authors: Birgit Wild; Natalia Shakhova; Oleg Dudarev; Alexey Ruban; +11 Authors
Birgit Wild; Natalia Shakhova; Oleg Dudarev; Alexey Ruban; Denis Kosmach; Vladimir Tumskoy; Tommaso Tesi; Hanna Grimm; Inna Nybom; Felipe Matsubara; Helena Alexanderson; Martin Jakobsson; Alexey Mazurov; Igor Semiletov; Örjan Gustafsson;
doi: 10.1038/s41467-022-32696-0
pmid: 36030269
pmc: PMC9420143
handle: 20.500.14243/521584 , 10900/139545
doi: 10.1038/s41467-022-32696-0
pmid: 36030269
pmc: PMC9420143
handle: 20.500.14243/521584 , 10900/139545
AbstractSubsea permafrost represents a large carbon pool that might be or become a significant greenhouse gas source. Scarcity of observational data causes large uncertainties. We here use five 21-56 m long subsea permafrost cores from the Laptev Sea to constrain organic carbon (OC) storage and sources, degradation state and potential greenhouse gas production upon thaw. Grain sizes, optically-stimulated luminescence and biomarkers suggest deposition of aeolian silt and fluvial sand over 160 000 years, with dominant fluvial/alluvial deposition of forest- and tundra-derived organic matter. We estimate an annual thaw rate of 1.3 ± 0.6 kg OC m−2 in subsea permafrost in the area, nine-fold exceeding organic carbon thaw rates for terrestrial permafrost. During 20-month incubations, CH4 and CO2 production averaged 1.7 nmol and 2.4 µmol g−1 OC d−1, providing a baseline to assess the contribution of subsea permafrost to the high CH4 fluxes and strong ocean acidification observed in the region.
Nature Communication...arrow_drop_down
Nature Communications
Article . 2022 . Peer-reviewed
License: CC BY
Data sources: Crossref
Nature Communications
Article . 2022
Data sources: Europe PubMed Central
PubMed Central
Other literature type . 2022
License: http://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (http://creativecommons.org/licenses/by/4.0/) .
Data sources: PubMed Central
Nature Communications
Article . 2022
Data sources: DOAJ
Digital library (repository) of Tomsk State University
Article . 2022
Data sources: Digital library (repository) of Tomsk State University
IRIS Cnr
Article . 2022
Data sources: IRIS Cnr
Eberhard Karls University Tübingen: Publication System
Article . 2022
Data sources: Bielefeld Academic Search Engine (BASE)
linkLink to
shareshareShare
citeCite
addClaim
Please grant OpenAIRE to access and update your ORCID works.
This Research product is the result of merged Research products in OpenAIRE.

You have already added works in your ORCID record related to the merged Research product.
This Research product is the result of merged Research products in OpenAIRE.

You have already added works in your ORCID record related to the merged Research product.
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For further information contact us at helpdesk@openaire.eu
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gold
25
citations 25
popularity Top 10%
influence Top 10%
impulse Top 10%
Powered by BIP!
more_vert
Nature Communication...arrow_drop_down
Nature Communications
Article . 2022 . Peer-reviewed
License: CC BY
Data sources: Crossref
Nature Communications
Article . 2022
Data sources: Europe PubMed Central
PubMed Central
Other literature type . 2022
License: http://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (http://creativecommons.org/licenses/by/4.0/) .
Data sources: PubMed Central
Nature Communications
Article . 2022
Data sources: DOAJ
Digital library (repository) of Tomsk State University
Article . 2022
Data sources: Digital library (repository) of Tomsk State University
IRIS Cnr
Article . 2022
Data sources: IRIS Cnr
Eberhard Karls University Tübingen: Publication System
Article . 2022
Data sources: Bielefeld Academic Search Engine (BASE)
linkLink to
shareshareShare
citeCite
addClaim
Please grant OpenAIRE to access and update your ORCID works.
This Research product is the result of merged Research products in OpenAIRE.

You have already added works in your ORCID record related to the merged Research product.
This Research product is the result of merged Research products in OpenAIRE.

You have already added works in your ORCID record related to the merged Research product.
Select content type to embed
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Organic matter composition and greenhouse gas production of thawing subsea permafrost in the Laptev Sea

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Organic matter composition and greenhouse gas production of thawing subsea permafrost in the Laptev Sea