Carbon dioxide release from retrogressive thaw slumps in Siberia
Abstract Thawing of ice-rich permafrost soils in sloped terrain can lead to activation of retrogressive thaw slumps (RTSs) which make organic matter available for decomposition that has been frozen for centuries to millennia. Recent studies show that the area affected by RTSs increased in the last t...
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crioppubl:10.1088/1748-9326/acfdbb 2024-06-02T08:02:12+00:00 Carbon dioxide release from retrogressive thaw slumps in Siberia Beer, C Runge, A Grosse, G Hugelius, G Knoblauch, C BMBF German Ministry of Education and Research CCI CLICCS 2023 http://dx.doi.org/10.1088/1748-9326/acfdbb https://iopscience.iop.org/article/10.1088/1748-9326/acfdbb https://iopscience.iop.org/article/10.1088/1748-9326/acfdbb/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 18, issue 10, page 104053 ISSN 1748-9326 journal-article 2023 crioppubl https://doi.org/10.1088/1748-9326/acfdbb 2024-05-07T13:57:04Z Abstract Thawing of ice-rich permafrost soils in sloped terrain can lead to activation of retrogressive thaw slumps (RTSs) which make organic matter available for decomposition that has been frozen for centuries to millennia. Recent studies show that the area affected by RTSs increased in the last two decades across the pan-Arctic. Combining a model of soil carbon dynamics with remotely sensed spatial details of thaw slump area and a soil carbon database, we show that RTSs in Siberia turned a previous quasi-neutral ecosystem into a strong source of carbon dioxide of 367 ± 213 gC m-1 a-1. On a global scale, recent CO 2 emissions from Siberian thaw slumps of 0.42 ± 0.22 Tg carbon per year are negligible so far. However, depending on the future evolution of permafrost thaw and hence thaw slump-affected area, such hillslope processes can transition permafrost landscapes to become a major source of additional CO 2 release into the atmosphere. Article in Journal/Newspaper Arctic Ice permafrost Siberia IOP Publishing Arctic Environmental Research Letters 18 10 104053 |
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Abstract Thawing of ice-rich permafrost soils in sloped terrain can lead to activation of retrogressive thaw slumps (RTSs) which make organic matter available for decomposition that has been frozen for centuries to millennia. Recent studies show that the area affected by RTSs increased in the last two decades across the pan-Arctic. Combining a model of soil carbon dynamics with remotely sensed spatial details of thaw slump area and a soil carbon database, we show that RTSs in Siberia turned a previous quasi-neutral ecosystem into a strong source of carbon dioxide of 367 ± 213 gC m-1 a-1. On a global scale, recent CO 2 emissions from Siberian thaw slumps of 0.42 ± 0.22 Tg carbon per year are negligible so far. However, depending on the future evolution of permafrost thaw and hence thaw slump-affected area, such hillslope processes can transition permafrost landscapes to become a major source of additional CO 2 release into the atmosphere. |
author2 |
BMBF German Ministry of Education and Research CCI CLICCS |
format |
Article in Journal/Newspaper |
author |
Beer, C Runge, A Grosse, G Hugelius, G Knoblauch, C |
spellingShingle |
Beer, C Runge, A Grosse, G Hugelius, G Knoblauch, C Carbon dioxide release from retrogressive thaw slumps in Siberia |
author_facet |
Beer, C Runge, A Grosse, G Hugelius, G Knoblauch, C |
author_sort |
Beer, C |
title |
Carbon dioxide release from retrogressive thaw slumps in Siberia |
title_short |
Carbon dioxide release from retrogressive thaw slumps in Siberia |
title_full |
Carbon dioxide release from retrogressive thaw slumps in Siberia |
title_fullStr |
Carbon dioxide release from retrogressive thaw slumps in Siberia |
title_full_unstemmed |
Carbon dioxide release from retrogressive thaw slumps in Siberia |
title_sort |
carbon dioxide release from retrogressive thaw slumps in siberia |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1088/1748-9326/acfdbb https://iopscience.iop.org/article/10.1088/1748-9326/acfdbb https://iopscience.iop.org/article/10.1088/1748-9326/acfdbb/pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Siberia |
genre_facet |
Arctic Ice permafrost Siberia |
op_source |
Environmental Research Letters volume 18, issue 10, page 104053 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/acfdbb |
container_title |
Environmental Research Letters |
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18 |
container_issue |
10 |
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104053 |
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1800746701568344064 |