Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems
Significant progress in permafrost carbon science made over the past decades include the identification of vast permafrost carbon stocks, the development of new pan-Arctic permafrost maps, an increase in terrestrial measurement sites for CO2 and methane fluxes, and important factors affecting carbon...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Language: | English |
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2024
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578_1/component/file_5025635/5025578.pdf |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5025578 2024-05-19T07:36:30+00:00 Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems Treat, C. Virkkala, A. Burke, E. Bruhwiler, L. Chatterjee, A. Fisher, J. Hashemi, J. Parmentier, F. Rogers, B. Westermann, S. Watts, J. Blanc‐Betes, E. Fuchs, M. Kruse, S. Malhotra, A. Miner, K. Strauss, J. Armstrong, A. Epstein, H. Gay, B. Goeckede, M. Kalhori, A. Kou, D. Miller, C. Natali, S. Oh, Y. Shakil, S. Sonnentag, O. Varner, R. Zolkos, S. Schuur, E. Hugelius, G. 2024 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578_1/component/file_5025635/5025578.pdf eng eng info:eu-repo/semantics/altIdentifier/doi/10.1029/2023JG007638 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578_1/component/file_5025635/5025578.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/4.0/ Journal of Geophysical Research: Biogeosciences info:eu-repo/semantics/article 2024 ftgfzpotsdam https://doi.org/10.1029/2023JG007638 2024-04-23T23:30:27Z Significant progress in permafrost carbon science made over the past decades include the identification of vast permafrost carbon stocks, the development of new pan-Arctic permafrost maps, an increase in terrestrial measurement sites for CO2 and methane fluxes, and important factors affecting carbon cycling, including vegetation changes, periods of soil freezing and thawing, wildfire, and other disturbance events. Process-based modeling studies now include key elements of permafrost carbon cycling and advances in statistical modeling and inverse modeling enhance understanding of permafrost region C budgets. By combining existing data syntheses and model outputs, the permafrost region is likely a wetland methane source and small terrestrial ecosystem CO2 sink with lower net CO2 uptake toward higher latitudes, excluding wildfire emissions. For 2002–2014, the strongest CO2 sink was located in western Canada (median: −52 g C m−2 y−1) and smallest sinks in Alaska, Canadian tundra, and Siberian tundra (medians: −5 to −9 g C m−2 y−1). Eurasian regions had the largest median wetland methane fluxes (16–18 g CH4 m−2 y−1). Quantifying the regional scale carbon balance remains challenging because of high spatial and temporal variability and relatively low density of observations. More accurate permafrost region carbon fluxes require: (a) the development of better maps characterizing wetlands and dynamics of vegetation and disturbances, including abrupt permafrost thaw; (b) the establishment of new year-round CO2 and methane flux sites in underrepresented areas; and (c) improved models that better represent important permafrost carbon cycle dynamics, including non-growing season emissions and disturbance effects. Article in Journal/Newspaper Arctic permafrost Tundra Alaska GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Journal of Geophysical Research: Biogeosciences 129 3 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
Significant progress in permafrost carbon science made over the past decades include the identification of vast permafrost carbon stocks, the development of new pan-Arctic permafrost maps, an increase in terrestrial measurement sites for CO2 and methane fluxes, and important factors affecting carbon cycling, including vegetation changes, periods of soil freezing and thawing, wildfire, and other disturbance events. Process-based modeling studies now include key elements of permafrost carbon cycling and advances in statistical modeling and inverse modeling enhance understanding of permafrost region C budgets. By combining existing data syntheses and model outputs, the permafrost region is likely a wetland methane source and small terrestrial ecosystem CO2 sink with lower net CO2 uptake toward higher latitudes, excluding wildfire emissions. For 2002–2014, the strongest CO2 sink was located in western Canada (median: −52 g C m−2 y−1) and smallest sinks in Alaska, Canadian tundra, and Siberian tundra (medians: −5 to −9 g C m−2 y−1). Eurasian regions had the largest median wetland methane fluxes (16–18 g CH4 m−2 y−1). Quantifying the regional scale carbon balance remains challenging because of high spatial and temporal variability and relatively low density of observations. More accurate permafrost region carbon fluxes require: (a) the development of better maps characterizing wetlands and dynamics of vegetation and disturbances, including abrupt permafrost thaw; (b) the establishment of new year-round CO2 and methane flux sites in underrepresented areas; and (c) improved models that better represent important permafrost carbon cycle dynamics, including non-growing season emissions and disturbance effects. |
format |
Article in Journal/Newspaper |
author |
Treat, C. Virkkala, A. Burke, E. Bruhwiler, L. Chatterjee, A. Fisher, J. Hashemi, J. Parmentier, F. Rogers, B. Westermann, S. Watts, J. Blanc‐Betes, E. Fuchs, M. Kruse, S. Malhotra, A. Miner, K. Strauss, J. Armstrong, A. Epstein, H. Gay, B. Goeckede, M. Kalhori, A. Kou, D. Miller, C. Natali, S. Oh, Y. Shakil, S. Sonnentag, O. Varner, R. Zolkos, S. Schuur, E. Hugelius, G. |
spellingShingle |
Treat, C. Virkkala, A. Burke, E. Bruhwiler, L. Chatterjee, A. Fisher, J. Hashemi, J. Parmentier, F. Rogers, B. Westermann, S. Watts, J. Blanc‐Betes, E. Fuchs, M. Kruse, S. Malhotra, A. Miner, K. Strauss, J. Armstrong, A. Epstein, H. Gay, B. Goeckede, M. Kalhori, A. Kou, D. Miller, C. Natali, S. Oh, Y. Shakil, S. Sonnentag, O. Varner, R. Zolkos, S. Schuur, E. Hugelius, G. Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
author_facet |
Treat, C. Virkkala, A. Burke, E. Bruhwiler, L. Chatterjee, A. Fisher, J. Hashemi, J. Parmentier, F. Rogers, B. Westermann, S. Watts, J. Blanc‐Betes, E. Fuchs, M. Kruse, S. Malhotra, A. Miner, K. Strauss, J. Armstrong, A. Epstein, H. Gay, B. Goeckede, M. Kalhori, A. Kou, D. Miller, C. Natali, S. Oh, Y. Shakil, S. Sonnentag, O. Varner, R. Zolkos, S. Schuur, E. Hugelius, G. |
author_sort |
Treat, C. |
title |
Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
title_short |
Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
title_full |
Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
title_fullStr |
Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
title_full_unstemmed |
Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems |
title_sort |
permafrost carbon: progress on understanding stocks and fluxes across northern terrestrial ecosystems |
publishDate |
2024 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578_1/component/file_5025635/5025578.pdf |
genre |
Arctic permafrost Tundra Alaska |
genre_facet |
Arctic permafrost Tundra Alaska |
op_source |
Journal of Geophysical Research: Biogeosciences |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2023JG007638 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025578_1/component/file_5025635/5025578.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1029/2023JG007638 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
129 |
container_issue |
3 |
_version_ |
1799475631194374144 |