Circum-Arctic release of terrestrial carbon varies between regions and sources
Arctic change is expected to destabilize terrestrial carbon (terrOC) in soils and permafrost, leading to fluvial release, greenhouse gas emission and climate feedback. However, landscape heterogeneity and location-specific observations complicate large-scale assessments of terrOC mobilization. Here...
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fttomskstateuniv:koha:000996463 2023-05-15T14:32:46+02:00 Circum-Arctic release of terrestrial carbon varies between regions and sources Martens, Jannik Wild, Birgit Semiletov, Igor P. Dudarev, Oleg V. Gustafsson, Örjan 2022 https://doi.org/10.1038/s41467-022-33541-0 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000996463 eng eng koha:000996463 doi:10.1038/s41467-022-33541-0 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000996463 Nature communications. 2022. Vol. 13. P. 5858 (1-10) наземный углерод циркумарктический выброс Циркумарктическая база данных углеродных отложений почвы вечная мерзлота Арктика статьи в журналах info:eu-repo/semantics/article 2022 fttomskstateuniv https://doi.org/10.1038/s41467-022-33541-0 2023-02-28T17:36:53Z Arctic change is expected to destabilize terrestrial carbon (terrOC) in soils and permafrost, leading to fluvial release, greenhouse gas emission and climate feedback. However, landscape heterogeneity and location-specific observations complicate large-scale assessments of terrOC mobilization. Here we reveal differences in terrOC release, deduced from the Circum-Arctic Sediment Carbon Database (CASCADE) using source-diagnostic (δ13C-Δ14C) and carbon accumulation data. The results show five-times larger terrOC release from the Eurasian than from the American Arctic. Most of the circum-Arctic terrOC originates from near-surface soils (61%); 30% stems from Pleistocene-age permafrost. TerrOC translocation, relative to land-based terrOC stocks, varies by a factor of five between circum-Arctic regions. Shelf seas with higher relative terrOC translocation follow the spatial pattern of recent Arctic warming, while such with lower translocation reflect long-distance lateral transport with efficient remineralization of terrOC. This study provides a receptor-based perspective for how terrOC release varies across the circum-Arctic. Article in Journal/Newspaper Arctic permafrost Арктика вечная мерзлота Tomsk State University Research Library Arctic Nature Communications 13 1 |
institution |
Open Polar |
collection |
Tomsk State University Research Library |
op_collection_id |
fttomskstateuniv |
language |
English |
topic |
наземный углерод циркумарктический выброс Циркумарктическая база данных углеродных отложений почвы вечная мерзлота Арктика |
spellingShingle |
наземный углерод циркумарктический выброс Циркумарктическая база данных углеродных отложений почвы вечная мерзлота Арктика Martens, Jannik Wild, Birgit Semiletov, Igor P. Dudarev, Oleg V. Gustafsson, Örjan Circum-Arctic release of terrestrial carbon varies between regions and sources |
topic_facet |
наземный углерод циркумарктический выброс Циркумарктическая база данных углеродных отложений почвы вечная мерзлота Арктика |
description |
Arctic change is expected to destabilize terrestrial carbon (terrOC) in soils and permafrost, leading to fluvial release, greenhouse gas emission and climate feedback. However, landscape heterogeneity and location-specific observations complicate large-scale assessments of terrOC mobilization. Here we reveal differences in terrOC release, deduced from the Circum-Arctic Sediment Carbon Database (CASCADE) using source-diagnostic (δ13C-Δ14C) and carbon accumulation data. The results show five-times larger terrOC release from the Eurasian than from the American Arctic. Most of the circum-Arctic terrOC originates from near-surface soils (61%); 30% stems from Pleistocene-age permafrost. TerrOC translocation, relative to land-based terrOC stocks, varies by a factor of five between circum-Arctic regions. Shelf seas with higher relative terrOC translocation follow the spatial pattern of recent Arctic warming, while such with lower translocation reflect long-distance lateral transport with efficient remineralization of terrOC. This study provides a receptor-based perspective for how terrOC release varies across the circum-Arctic. |
format |
Article in Journal/Newspaper |
author |
Martens, Jannik Wild, Birgit Semiletov, Igor P. Dudarev, Oleg V. Gustafsson, Örjan |
author_facet |
Martens, Jannik Wild, Birgit Semiletov, Igor P. Dudarev, Oleg V. Gustafsson, Örjan |
author_sort |
Martens, Jannik |
title |
Circum-Arctic release of terrestrial carbon varies between regions and sources |
title_short |
Circum-Arctic release of terrestrial carbon varies between regions and sources |
title_full |
Circum-Arctic release of terrestrial carbon varies between regions and sources |
title_fullStr |
Circum-Arctic release of terrestrial carbon varies between regions and sources |
title_full_unstemmed |
Circum-Arctic release of terrestrial carbon varies between regions and sources |
title_sort |
circum-arctic release of terrestrial carbon varies between regions and sources |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41467-022-33541-0 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000996463 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Арктика вечная мерзлота |
genre_facet |
Arctic permafrost Арктика вечная мерзлота |
op_source |
Nature communications. 2022. Vol. 13. P. 5858 (1-10) |
op_relation |
koha:000996463 doi:10.1038/s41467-022-33541-0 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000996463 |
op_doi |
https://doi.org/10.1038/s41467-022-33541-0 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1766306123327995904 |