Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost
Climate warming is expected to mobilize northern permafrost and peat organic carbon (PP-C), yet magnitudes and system specifics of even current releases are poorly constrained. While part of the PP-C will degrade at point of thaw to CO 2 and CH 4 to directly amplify global warming, another part will...
Published in: | Proceedings of the National Academy of Sciences |
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Online Access: | https://research.vu.nl/en/publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 https://doi.org/10.1073/pnas.1811797116 https://hdl.handle.net/1871.1/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 http://www.scopus.com/inward/record.url?scp=85066136794&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85066136794&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 2024-06-23T07:48:40+00:00 Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost Wild, Birgit Andersson, August Bröder, Lisa Vonk, Jorien Hugelius, Gustaf McClelland, James W. Song, Wenjun Raymond, Peter A. Gustafsson, Örjan 2019-01-01 https://research.vu.nl/en/publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 https://doi.org/10.1073/pnas.1811797116 https://hdl.handle.net/1871.1/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 http://www.scopus.com/inward/record.url?scp=85066136794&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85066136794&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 info:eu-repo/semantics/openAccess Wild , B , Andersson , A , Bröder , L , Vonk , J , Hugelius , G , McClelland , J W , Song , W , Raymond , P A & Gustafsson , Ö 2019 , ' Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 116 , no. 21 , pp. 10280-10285 . https://doi.org/10.1073/pnas.1811797116 carbon cycle climate change leaching peat radiocarbon /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2019 ftvuamstcris https://doi.org/10.1073/pnas.1811797116 2024-06-13T00:19:52Z Climate warming is expected to mobilize northern permafrost and peat organic carbon (PP-C), yet magnitudes and system specifics of even current releases are poorly constrained. While part of the PP-C will degrade at point of thaw to CO 2 and CH 4 to directly amplify global warming, another part will enter the fluvial network, potentially providing a window to observe large-scale PP-C remobilization patterns. Here, we employ a decade-long, high-temporal resolution record of 14 C in dissolved and particulate organic carbon (DOC and POC, respectively) to deconvolute PP-C release in the large drainage basins of rivers across Siberia: Ob, Yenisey, Lena, and Kolyma. The 14 C-constrained estimate of export specifically from PP-C corresponds to only 17 ± 8% of total fluvial organic carbon and serves as a benchmark for monitoring changes to fluvial PP-C remobilization in a warming Arctic. Whereas DOC was dominated by recent organic carbon and poorly traced PP-C (12 ± 8%), POC carried a much stronger signature of PP-C (63 ± 10%) and represents the best window to detect spatial and temporal dynamics of PP-C release. Distinct seasonal patterns suggest that while DOC primarily stems from gradual leaching of surface soils, POC reflects abrupt collapse of deeper deposits. Higher dissolved PP-C export by Ob and Yenisey aligns with discontinuous permafrost that facilitates leaching, whereas higher particulate PP-C export by Lena and Kolyma likely echoes the thermokarst-induced collapse of Pleistocene deposits. Quantitative 14 C-based fingerprinting of fluvial organic carbon thus provides an opportunity to elucidate large-scale dynamics of PP-C remobilization in response to Arctic warming. Article in Journal/Newspaper Arctic Arctic Climate change Global warming permafrost Thermokarst Siberia Vrije Universiteit Amsterdam (VU): Research Portal Arctic Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Yenisey ENVELOPE(82.680,82.680,71.828,71.828) Proceedings of the National Academy of Sciences 116 21 10280 10285 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
carbon cycle climate change leaching peat radiocarbon /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
carbon cycle climate change leaching peat radiocarbon /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Wild, Birgit Andersson, August Bröder, Lisa Vonk, Jorien Hugelius, Gustaf McClelland, James W. Song, Wenjun Raymond, Peter A. Gustafsson, Örjan Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
topic_facet |
carbon cycle climate change leaching peat radiocarbon /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Climate warming is expected to mobilize northern permafrost and peat organic carbon (PP-C), yet magnitudes and system specifics of even current releases are poorly constrained. While part of the PP-C will degrade at point of thaw to CO 2 and CH 4 to directly amplify global warming, another part will enter the fluvial network, potentially providing a window to observe large-scale PP-C remobilization patterns. Here, we employ a decade-long, high-temporal resolution record of 14 C in dissolved and particulate organic carbon (DOC and POC, respectively) to deconvolute PP-C release in the large drainage basins of rivers across Siberia: Ob, Yenisey, Lena, and Kolyma. The 14 C-constrained estimate of export specifically from PP-C corresponds to only 17 ± 8% of total fluvial organic carbon and serves as a benchmark for monitoring changes to fluvial PP-C remobilization in a warming Arctic. Whereas DOC was dominated by recent organic carbon and poorly traced PP-C (12 ± 8%), POC carried a much stronger signature of PP-C (63 ± 10%) and represents the best window to detect spatial and temporal dynamics of PP-C release. Distinct seasonal patterns suggest that while DOC primarily stems from gradual leaching of surface soils, POC reflects abrupt collapse of deeper deposits. Higher dissolved PP-C export by Ob and Yenisey aligns with discontinuous permafrost that facilitates leaching, whereas higher particulate PP-C export by Lena and Kolyma likely echoes the thermokarst-induced collapse of Pleistocene deposits. Quantitative 14 C-based fingerprinting of fluvial organic carbon thus provides an opportunity to elucidate large-scale dynamics of PP-C remobilization in response to Arctic warming. |
format |
Article in Journal/Newspaper |
author |
Wild, Birgit Andersson, August Bröder, Lisa Vonk, Jorien Hugelius, Gustaf McClelland, James W. Song, Wenjun Raymond, Peter A. Gustafsson, Örjan |
author_facet |
Wild, Birgit Andersson, August Bröder, Lisa Vonk, Jorien Hugelius, Gustaf McClelland, James W. Song, Wenjun Raymond, Peter A. Gustafsson, Örjan |
author_sort |
Wild, Birgit |
title |
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
title_short |
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
title_full |
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
title_fullStr |
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
title_full_unstemmed |
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost |
title_sort |
rivers across the siberian arctic unearth the patterns of carbon release from thawing permafrost |
publishDate |
2019 |
url |
https://research.vu.nl/en/publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 https://doi.org/10.1073/pnas.1811797116 https://hdl.handle.net/1871.1/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 http://www.scopus.com/inward/record.url?scp=85066136794&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85066136794&partnerID=8YFLogxK |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Kolyma Yenisey |
geographic_facet |
Arctic Kolyma Yenisey |
genre |
Arctic Arctic Climate change Global warming permafrost Thermokarst Siberia |
genre_facet |
Arctic Arctic Climate change Global warming permafrost Thermokarst Siberia |
op_source |
Wild , B , Andersson , A , Bröder , L , Vonk , J , Hugelius , G , McClelland , J W , Song , W , Raymond , P A & Gustafsson , Ö 2019 , ' Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 116 , no. 21 , pp. 10280-10285 . https://doi.org/10.1073/pnas.1811797116 |
op_relation |
https://research.vu.nl/en/publications/4d277fe1-b6c9-4bf9-b0bf-c2a5a9f80768 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1073/pnas.1811797116 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
116 |
container_issue |
21 |
container_start_page |
10280 |
op_container_end_page |
10285 |
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1802639005914759168 |