Seasonal carbon dynamics of the Kolyma River tributaries, Siberia
Arctic warming is causing permafrost thaw and release of organic carbon (OC) to fluvial systems. Permafrost-derived OC can be transported downstream and degraded into greenhouse gases that may enhance climate warming. Susceptibility of OC to decomposition depends largely upon its source and composit...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00068479 2023-09-26T15:13:52+02:00 Seasonal carbon dynamics of the Kolyma River tributaries, Siberia Keskitalo, Kirsi H. Bröder, Lisa Tesi, Tommaso Mann, Paul J. Jong, Dirk J. Bulte Garcia, Sergio Davydova, Anna Davydov, Sergei Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. 2023-08 electronic https://doi.org/10.5194/egusphere-2023-1792 https://noa.gwlb.de/receive/cop_mods_00068479 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066906/egusphere-2023-1792.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1792/egusphere-2023-1792.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2023-1792 https://noa.gwlb.de/receive/cop_mods_00068479 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066906/egusphere-2023-1792.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1792/egusphere-2023-1792.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/egusphere-2023-1792 2023-08-27T23:20:34Z Arctic warming is causing permafrost thaw and release of organic carbon (OC) to fluvial systems. Permafrost-derived OC can be transported downstream and degraded into greenhouse gases that may enhance climate warming. Susceptibility of OC to decomposition depends largely upon its source and composition which varies throughout the seasonally distinct hydrograph. Most studies to date have focused on larger Arctic rivers, yet little is known about carbon dynamics in lower order rivers/streams. Here, we characterize composition and sources of OC, focusing on less studied particulate OC (POC), in smaller waterways within the Kolyma River watershed. Additionally, we examine how watershed characteristics control carbon concentrations. In lower order systems, we find rapid initiation of primary production in response to warm weather, shown by decreasing δ13C-POC, in contrast to larger rivers. As Arctic warming and hydrologic changes may increase OC transfer from smaller waterways through river networks this may intensify inland water carbon outgassing. Article in Journal/Newspaper Arctic kolyma river permafrost Siberia Niedersächsisches Online-Archiv NOA Arctic Kolyma ENVELOPE(161.000,161.000,69.500,69.500) |
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Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Keskitalo, Kirsi H. Bröder, Lisa Tesi, Tommaso Mann, Paul J. Jong, Dirk J. Bulte Garcia, Sergio Davydova, Anna Davydov, Sergei Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
topic_facet |
article Verlagsveröffentlichung |
description |
Arctic warming is causing permafrost thaw and release of organic carbon (OC) to fluvial systems. Permafrost-derived OC can be transported downstream and degraded into greenhouse gases that may enhance climate warming. Susceptibility of OC to decomposition depends largely upon its source and composition which varies throughout the seasonally distinct hydrograph. Most studies to date have focused on larger Arctic rivers, yet little is known about carbon dynamics in lower order rivers/streams. Here, we characterize composition and sources of OC, focusing on less studied particulate OC (POC), in smaller waterways within the Kolyma River watershed. Additionally, we examine how watershed characteristics control carbon concentrations. In lower order systems, we find rapid initiation of primary production in response to warm weather, shown by decreasing δ13C-POC, in contrast to larger rivers. As Arctic warming and hydrologic changes may increase OC transfer from smaller waterways through river networks this may intensify inland water carbon outgassing. |
format |
Article in Journal/Newspaper |
author |
Keskitalo, Kirsi H. Bröder, Lisa Tesi, Tommaso Mann, Paul J. Jong, Dirk J. Bulte Garcia, Sergio Davydova, Anna Davydov, Sergei Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. |
author_facet |
Keskitalo, Kirsi H. Bröder, Lisa Tesi, Tommaso Mann, Paul J. Jong, Dirk J. Bulte Garcia, Sergio Davydova, Anna Davydov, Sergei Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. |
author_sort |
Keskitalo, Kirsi H. |
title |
Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
title_short |
Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
title_full |
Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
title_fullStr |
Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
title_full_unstemmed |
Seasonal carbon dynamics of the Kolyma River tributaries, Siberia |
title_sort |
seasonal carbon dynamics of the kolyma river tributaries, siberia |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/egusphere-2023-1792 https://noa.gwlb.de/receive/cop_mods_00068479 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066906/egusphere-2023-1792.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1792/egusphere-2023-1792.pdf |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic Kolyma |
geographic_facet |
Arctic Kolyma |
genre |
Arctic kolyma river permafrost Siberia |
genre_facet |
Arctic kolyma river permafrost Siberia |
op_relation |
https://doi.org/10.5194/egusphere-2023-1792 https://noa.gwlb.de/receive/cop_mods_00068479 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066906/egusphere-2023-1792.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1792/egusphere-2023-1792.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2023-1792 |
_version_ |
1778134521569345536 |