Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer
The burial of terrestrial organic carbon (terrOC) in marine sediments contributes to the regulation of atmospheric CO 2 on geological timescales and may mitigate positive feedback to present-day climate warming. However, the fate of terrOC in marine settings is debated, with uncertainties regarding...
Published in: | Nature Communications |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://research.vu.nl/en/publications/e8e2095d-a454-404e-a99a-518eda012e44 https://doi.org/10.1038/s41467-018-03192-1 https://hdl.handle.net/1871.1/e8e2095d-a454-404e-a99a-518eda012e44 http://www.scopus.com/inward/record.url?scp=85042552882&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85042552882&partnerID=8YFLogxK |
id |
ftvuamstcris:oai:research.vu.nl:publications/e8e2095d-a454-404e-a99a-518eda012e44 |
---|---|
record_format |
openpolar |
spelling |
ftvuamstcris:oai:research.vu.nl:publications/e8e2095d-a454-404e-a99a-518eda012e44 2024-06-23T07:48:30+00:00 Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer Bröder, Lisa Tesi, Tommaso Andersson, August Semiletov, Igor Gustafsson, Örjan 2018-02-23 https://research.vu.nl/en/publications/e8e2095d-a454-404e-a99a-518eda012e44 https://doi.org/10.1038/s41467-018-03192-1 https://hdl.handle.net/1871.1/e8e2095d-a454-404e-a99a-518eda012e44 http://www.scopus.com/inward/record.url?scp=85042552882&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85042552882&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/e8e2095d-a454-404e-a99a-518eda012e44 info:eu-repo/semantics/openAccess Bröder , L , Tesi , T , Andersson , A , Semiletov , I & Gustafsson , Ö 2018 , ' Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer ' , Nature Communications , vol. 9 , 806 , pp. 1-8 . https://doi.org/10.1038/s41467-018-03192-1 /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 2018 ftvuamstcris https://doi.org/10.1038/s41467-018-03192-1 2024-06-06T00:12:07Z The burial of terrestrial organic carbon (terrOC) in marine sediments contributes to the regulation of atmospheric CO 2 on geological timescales and may mitigate positive feedback to present-day climate warming. However, the fate of terrOC in marine settings is debated, with uncertainties regarding its degradation during transport. Here, we employ compound-specific radiocarbon analyses of terrestrial biomarkers to determine cross-shelf transport times. For the World's largest marginal sea, the East Siberian Arctic shelf, transport requires 3600 ± 300 years for the 600 km from the Lena River to the Laptev Sea shelf edge. TerrOC was reduced by ∼85% during transit resulting in a degradation rate constant of 2.4 ± 0.6 kyr -1 . Hence, terrOC degradation during cross-shelf transport constitutes a carbon source to the atmosphere over millennial time. For the contemporary carbon cycle on the other hand, slow terrOC degradation brings considerable attenuation of the decadal-centennial permafrost carbon-climate feedback caused by global warming. Article in Journal/Newspaper Arctic Arctic Global warming laptev Laptev Sea lena river permafrost Vrije Universiteit Amsterdam (VU): Research Portal Arctic Laptev Sea Nature Communications 9 1 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/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 |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Bröder, Lisa Tesi, Tommaso Andersson, August Semiletov, Igor Gustafsson, Örjan Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
topic_facet |
/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 |
The burial of terrestrial organic carbon (terrOC) in marine sediments contributes to the regulation of atmospheric CO 2 on geological timescales and may mitigate positive feedback to present-day climate warming. However, the fate of terrOC in marine settings is debated, with uncertainties regarding its degradation during transport. Here, we employ compound-specific radiocarbon analyses of terrestrial biomarkers to determine cross-shelf transport times. For the World's largest marginal sea, the East Siberian Arctic shelf, transport requires 3600 ± 300 years for the 600 km from the Lena River to the Laptev Sea shelf edge. TerrOC was reduced by ∼85% during transit resulting in a degradation rate constant of 2.4 ± 0.6 kyr -1 . Hence, terrOC degradation during cross-shelf transport constitutes a carbon source to the atmosphere over millennial time. For the contemporary carbon cycle on the other hand, slow terrOC degradation brings considerable attenuation of the decadal-centennial permafrost carbon-climate feedback caused by global warming. |
format |
Article in Journal/Newspaper |
author |
Bröder, Lisa Tesi, Tommaso Andersson, August Semiletov, Igor Gustafsson, Örjan |
author_facet |
Bröder, Lisa Tesi, Tommaso Andersson, August Semiletov, Igor Gustafsson, Örjan |
author_sort |
Bröder, Lisa |
title |
Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
title_short |
Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
title_full |
Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
title_fullStr |
Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
title_full_unstemmed |
Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer |
title_sort |
bounding cross-shelf transport time and degradation in siberian-arctic land-ocean carbon transfer |
publishDate |
2018 |
url |
https://research.vu.nl/en/publications/e8e2095d-a454-404e-a99a-518eda012e44 https://doi.org/10.1038/s41467-018-03192-1 https://hdl.handle.net/1871.1/e8e2095d-a454-404e-a99a-518eda012e44 http://www.scopus.com/inward/record.url?scp=85042552882&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85042552882&partnerID=8YFLogxK |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic Arctic Global warming laptev Laptev Sea lena river permafrost |
genre_facet |
Arctic Arctic Global warming laptev Laptev Sea lena river permafrost |
op_source |
Bröder , L , Tesi , T , Andersson , A , Semiletov , I & Gustafsson , Ö 2018 , ' Bounding cross-shelf transport time and degradation in Siberian-Arctic land-ocean carbon transfer ' , Nature Communications , vol. 9 , 806 , pp. 1-8 . https://doi.org/10.1038/s41467-018-03192-1 |
op_relation |
https://research.vu.nl/en/publications/e8e2095d-a454-404e-a99a-518eda012e44 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-018-03192-1 |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
_version_ |
1802638896385753088 |