Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem
Ongoing rapid arctic warming leads to extensive permafrost thaw, which in turn increases the hydrologic connectivity of the landscape by opening up subsurface flow paths. Suspended particulate organic matter (POM) has proven useful to trace permafrost thaw signals in arctic rivers, which may experie...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://research.vu.nl/en/publications/489cdec2-4ae7-4185-920a-4a46638225b1 https://doi.org/10.1029/2019JG005511 https://hdl.handle.net/1871.1/489cdec2-4ae7-4185-920a-4a46638225b1 http://www.scopus.com/inward/record.url?scp=85080136854&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85080136854&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/489cdec2-4ae7-4185-920a-4a46638225b1 2024-09-15T18:11:30+00:00 Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem Bröder, Lisa Davydova, Anya Davydov, Sergey Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. 2020-02-01 https://research.vu.nl/en/publications/489cdec2-4ae7-4185-920a-4a46638225b1 https://doi.org/10.1029/2019JG005511 https://hdl.handle.net/1871.1/489cdec2-4ae7-4185-920a-4a46638225b1 http://www.scopus.com/inward/record.url?scp=85080136854&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85080136854&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/489cdec2-4ae7-4185-920a-4a46638225b1 info:eu-repo/semantics/openAccess Bröder , L , Davydova , A , Davydov , S , Zimov , N , Haghipour , N , Eglinton , T I & Vonk , J E 2020 , ' Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem ' , Journal of Geophysical Research: Biogeosciences , vol. 125 , no. 2 , e2019JG005511 , pp. 1-16 . https://doi.org/10.1029/2019JG005511 Arctic carbon isotopes Kolyma lipid biomarkers particulate organic carbon permafrost /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2020 ftvuamstcris https://doi.org/10.1029/2019JG005511 2024-08-15T00:09:54Z Ongoing rapid arctic warming leads to extensive permafrost thaw, which in turn increases the hydrologic connectivity of the landscape by opening up subsurface flow paths. Suspended particulate organic matter (POM) has proven useful to trace permafrost thaw signals in arctic rivers, which may experience higher organic matter loads in the future due to expansion and increasing intensity of thaw processes such as thermokarst and river bank erosion. Here we focus on the Kolyma River watershed in Northeast Siberia, the world's largest watershed entirely underlain by continuous permafrost. To evaluate and characterize the present-day fluvial release of POM from permafrost thaw, we collected water samples every 4–7 days during the 4-month open water season in 2013 and 2015 from the lower Kolyma River mainstem and from a small nearby headwater stream (Y3) draining an area completely underlain by Yedoma permafrost (Pleistocene ice- and organic-rich deposits). Concentrations of particulate organic carbon generally followed the hydrograph with the highest concentrations during the spring flood in late May/early June. For the Kolyma River, concentrations of dissolved organic carbon showed a similar behavior, in contrast to the headwater stream, where dissolved organic carbon values were generally higher and particulate organic carbon concentrations lower than for Kolyma. Carbon isotope analysis (δ 13 C, Δ 14 C) suggested Kolyma-POM to stem from both contemporary and older permafrost sources, while Y3-POM was more strongly influenced by in-stream production and recent vegetation. Lipid biomarker concentrations (high-molecular-weight n-alkanoic acids and n-alkanes) did not display clear seasonal patterns, yet implied Y3-POM to be more degraded than Kolyma-POM. Article in Journal/Newspaper Ice kolyma river permafrost Thermokarst Siberia Vrije Universiteit Amsterdam (VU): Research Portal Journal of Geophysical Research: Biogeosciences 125 2 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Arctic carbon isotopes Kolyma lipid biomarkers particulate organic carbon permafrost /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
Arctic carbon isotopes Kolyma lipid biomarkers particulate organic carbon permafrost /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Bröder, Lisa Davydova, Anya Davydov, Sergey Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
topic_facet |
Arctic carbon isotopes Kolyma lipid biomarkers particulate organic carbon permafrost /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Ongoing rapid arctic warming leads to extensive permafrost thaw, which in turn increases the hydrologic connectivity of the landscape by opening up subsurface flow paths. Suspended particulate organic matter (POM) has proven useful to trace permafrost thaw signals in arctic rivers, which may experience higher organic matter loads in the future due to expansion and increasing intensity of thaw processes such as thermokarst and river bank erosion. Here we focus on the Kolyma River watershed in Northeast Siberia, the world's largest watershed entirely underlain by continuous permafrost. To evaluate and characterize the present-day fluvial release of POM from permafrost thaw, we collected water samples every 4–7 days during the 4-month open water season in 2013 and 2015 from the lower Kolyma River mainstem and from a small nearby headwater stream (Y3) draining an area completely underlain by Yedoma permafrost (Pleistocene ice- and organic-rich deposits). Concentrations of particulate organic carbon generally followed the hydrograph with the highest concentrations during the spring flood in late May/early June. For the Kolyma River, concentrations of dissolved organic carbon showed a similar behavior, in contrast to the headwater stream, where dissolved organic carbon values were generally higher and particulate organic carbon concentrations lower than for Kolyma. Carbon isotope analysis (δ 13 C, Δ 14 C) suggested Kolyma-POM to stem from both contemporary and older permafrost sources, while Y3-POM was more strongly influenced by in-stream production and recent vegetation. Lipid biomarker concentrations (high-molecular-weight n-alkanoic acids and n-alkanes) did not display clear seasonal patterns, yet implied Y3-POM to be more degraded than Kolyma-POM. |
format |
Article in Journal/Newspaper |
author |
Bröder, Lisa Davydova, Anya Davydov, Sergey Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. |
author_facet |
Bröder, Lisa Davydova, Anya Davydov, Sergey Zimov, Nikita Haghipour, Negar Eglinton, Timothy I. Vonk, Jorien E. |
author_sort |
Bröder, Lisa |
title |
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
title_short |
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
title_full |
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
title_fullStr |
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
title_full_unstemmed |
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem |
title_sort |
particulate organic matter dynamics in a permafrost headwater stream and the kolyma river mainstem |
publishDate |
2020 |
url |
https://research.vu.nl/en/publications/489cdec2-4ae7-4185-920a-4a46638225b1 https://doi.org/10.1029/2019JG005511 https://hdl.handle.net/1871.1/489cdec2-4ae7-4185-920a-4a46638225b1 http://www.scopus.com/inward/record.url?scp=85080136854&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85080136854&partnerID=8YFLogxK |
genre |
Ice kolyma river permafrost Thermokarst Siberia |
genre_facet |
Ice kolyma river permafrost Thermokarst Siberia |
op_source |
Bröder , L , Davydova , A , Davydov , S , Zimov , N , Haghipour , N , Eglinton , T I & Vonk , J E 2020 , ' Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem ' , Journal of Geophysical Research: Biogeosciences , vol. 125 , no. 2 , e2019JG005511 , pp. 1-16 . https://doi.org/10.1029/2019JG005511 |
op_relation |
https://research.vu.nl/en/publications/489cdec2-4ae7-4185-920a-4a46638225b1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2019JG005511 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
125 |
container_issue |
2 |
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1810449095778631680 |