First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region
Lakes in permafrost regions are dynamic landscape components and play an important role for climate change feedbacks. Lake processes such as mineralization and flocculation of dissolved organic carbon (DOC), one of the main carbon fractions in lakes, contribute to the greenhouse effect and are part...
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Copernicus Publications
2021
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Online Access: | https://doi.org/10.5194/bg-18-3917-2021 https://doaj.org/article/2872d38cb9414d7eb9c4b0dcdc34fb9d |
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ftdoajarticles:oai:doaj.org/article:2872d38cb9414d7eb9c4b0dcdc34fb9d 2023-05-15T14:51:15+02:00 First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region L. Stolpmann C. Coch A. Morgenstern J. Boike M. Fritz U. Herzschuh K. Stoof-Leichsenring Y. Dvornikov B. Heim J. Lenz A. Larsen K. Walter Anthony B. Jones K. Frey G. Grosse 2021-06-01T00:00:00Z https://doi.org/10.5194/bg-18-3917-2021 https://doaj.org/article/2872d38cb9414d7eb9c4b0dcdc34fb9d EN eng Copernicus Publications https://bg.copernicus.org/articles/18/3917/2021/bg-18-3917-2021.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-18-3917-2021 1726-4170 1726-4189 https://doaj.org/article/2872d38cb9414d7eb9c4b0dcdc34fb9d Biogeosciences, Vol 18, Pp 3917-3936 (2021) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.5194/bg-18-3917-2021 2022-12-31T05:29:24Z Lakes in permafrost regions are dynamic landscape components and play an important role for climate change feedbacks. Lake processes such as mineralization and flocculation of dissolved organic carbon (DOC), one of the main carbon fractions in lakes, contribute to the greenhouse effect and are part of the global carbon cycle. These processes are in the focus of climate research, but studies so far are limited to specific study regions. In our synthesis, we analyzed 2167 water samples from 1833 lakes across the Arctic in permafrost regions of Alaska, Canada, Greenland, and Siberia to provide first pan-Arctic insights for linkages between DOC concentrations and the environment. Using published data and unpublished datasets from the author team, we report regional DOC differences linked to latitude, permafrost zones, ecoregions, geology, near-surface soil organic carbon contents, and ground ice classification of each lake region. The lake DOC concentrations in our dataset range from 0 to 1130 mg L −1 (10.8 mg L −1 median DOC concentration). Regarding the permafrost regions of our synthesis, we found median lake DOC concentrations of 12.4 mg L −1 (Siberia), 12.3 mg L −1 (Alaska), 10.3 mg L −1 (Greenland), and 4.5 mg L −1 (Canada). Our synthesis shows a significant relationship between lake DOC concentration and lake ecoregion. We found higher lake DOC concentrations at boreal permafrost sites compared to tundra sites. We found significantly higher DOC concentrations in lakes in regions with ice-rich syngenetic permafrost deposits (yedoma) compared to non-yedoma lakes and a weak but significant relationship between soil organic carbon content and lake DOC concentration as well as between ground ice content and lake DOC. Our pan-Arctic dataset shows that the DOC concentration of a lake depends on its environmental properties, especially on permafrost extent and ecoregion, as well as vegetation, which is the most important driver of lake DOC in this study. This new dataset will be fundamental to quantify a pan-Arctic ... Article in Journal/Newspaper Arctic Climate change Greenland Ice permafrost Tundra Alaska Siberia Directory of Open Access Journals: DOAJ Articles Arctic Canada Greenland Biogeosciences 18 12 3917 3936 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 L. Stolpmann C. Coch A. Morgenstern J. Boike M. Fritz U. Herzschuh K. Stoof-Leichsenring Y. Dvornikov B. Heim J. Lenz A. Larsen K. Walter Anthony B. Jones K. Frey G. Grosse First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Lakes in permafrost regions are dynamic landscape components and play an important role for climate change feedbacks. Lake processes such as mineralization and flocculation of dissolved organic carbon (DOC), one of the main carbon fractions in lakes, contribute to the greenhouse effect and are part of the global carbon cycle. These processes are in the focus of climate research, but studies so far are limited to specific study regions. In our synthesis, we analyzed 2167 water samples from 1833 lakes across the Arctic in permafrost regions of Alaska, Canada, Greenland, and Siberia to provide first pan-Arctic insights for linkages between DOC concentrations and the environment. Using published data and unpublished datasets from the author team, we report regional DOC differences linked to latitude, permafrost zones, ecoregions, geology, near-surface soil organic carbon contents, and ground ice classification of each lake region. The lake DOC concentrations in our dataset range from 0 to 1130 mg L −1 (10.8 mg L −1 median DOC concentration). Regarding the permafrost regions of our synthesis, we found median lake DOC concentrations of 12.4 mg L −1 (Siberia), 12.3 mg L −1 (Alaska), 10.3 mg L −1 (Greenland), and 4.5 mg L −1 (Canada). Our synthesis shows a significant relationship between lake DOC concentration and lake ecoregion. We found higher lake DOC concentrations at boreal permafrost sites compared to tundra sites. We found significantly higher DOC concentrations in lakes in regions with ice-rich syngenetic permafrost deposits (yedoma) compared to non-yedoma lakes and a weak but significant relationship between soil organic carbon content and lake DOC concentration as well as between ground ice content and lake DOC. Our pan-Arctic dataset shows that the DOC concentration of a lake depends on its environmental properties, especially on permafrost extent and ecoregion, as well as vegetation, which is the most important driver of lake DOC in this study. This new dataset will be fundamental to quantify a pan-Arctic ... |
format |
Article in Journal/Newspaper |
author |
L. Stolpmann C. Coch A. Morgenstern J. Boike M. Fritz U. Herzschuh K. Stoof-Leichsenring Y. Dvornikov B. Heim J. Lenz A. Larsen K. Walter Anthony B. Jones K. Frey G. Grosse |
author_facet |
L. Stolpmann C. Coch A. Morgenstern J. Boike M. Fritz U. Herzschuh K. Stoof-Leichsenring Y. Dvornikov B. Heim J. Lenz A. Larsen K. Walter Anthony B. Jones K. Frey G. Grosse |
author_sort |
L. Stolpmann |
title |
First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
title_short |
First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
title_full |
First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
title_fullStr |
First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
title_full_unstemmed |
First pan-Arctic assessment of dissolved organic carbon in lakes of the permafrost region |
title_sort |
first pan-arctic assessment of dissolved organic carbon in lakes of the permafrost region |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/bg-18-3917-2021 https://doaj.org/article/2872d38cb9414d7eb9c4b0dcdc34fb9d |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Climate change Greenland Ice permafrost Tundra Alaska Siberia |
genre_facet |
Arctic Climate change Greenland Ice permafrost Tundra Alaska Siberia |
op_source |
Biogeosciences, Vol 18, Pp 3917-3936 (2021) |
op_relation |
https://bg.copernicus.org/articles/18/3917/2021/bg-18-3917-2021.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-18-3917-2021 1726-4170 1726-4189 https://doaj.org/article/2872d38cb9414d7eb9c4b0dcdc34fb9d |
op_doi |
https://doi.org/10.5194/bg-18-3917-2021 |
container_title |
Biogeosciences |
container_volume |
18 |
container_issue |
12 |
container_start_page |
3917 |
op_container_end_page |
3936 |
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1766322304160104448 |