The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling
International audience Abstract The northern permafrost region has been projected to shift from a net sink to a net source of carbon under global warming. However, estimates of the contemporary net greenhouse gas (GHG) balance and budgets of the permafrost region remain highly uncertain. Here, we co...
Published in: | Global Biogeochemical Cycles |
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Online Access: | https://hal.science/hal-04536905 https://hal.science/hal-04536905/document https://hal.science/hal-04536905/file/Global%20Biogeochemical%20Cycles%20-%202024%20-%20Ramage%20-%20The%20Net%20GHG%20Balance%20and%20Budget%20of%20the%20Permafrost%20Region%202000%202020%20From.pdf https://doi.org/10.1029/2023gb007953 |
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ftuniversailles:oai:HAL:hal-04536905v1 2024-04-28T08:35:39+00:00 The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling Ramage, Justine Kuhn, Mckenzie Virkkala, Anna‐maria Voigt, Carolina Marushchak, Maija, E Bastos, Ana Biasi, Christina Canadell, Josep, G Ciais, Philippe López‐blanco, Efrèn Natali, Susan, M Olefeldt, David Potter, Stefano Poulter, Benjamin Rogers, Brendan, M Schuur, Edward, a G Treat, Claire Turetsky, Merritt, R Watts, Jennifer Hugelius, Gustaf Stockholm University University of New Hampshire (UNH) Max Planck Institute for Biogeochemistry (MPI-BGC) Max-Planck-Gesellschaft Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) 2024-04 https://hal.science/hal-04536905 https://hal.science/hal-04536905/document https://hal.science/hal-04536905/file/Global%20Biogeochemical%20Cycles%20-%202024%20-%20Ramage%20-%20The%20Net%20GHG%20Balance%20and%20Budget%20of%20the%20Permafrost%20Region%202000%202020%20From.pdf https://doi.org/10.1029/2023gb007953 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2023gb007953 hal-04536905 https://hal.science/hal-04536905 https://hal.science/hal-04536905/document https://hal.science/hal-04536905/file/Global%20Biogeochemical%20Cycles%20-%202024%20-%20Ramage%20-%20The%20Net%20GHG%20Balance%20and%20Budget%20of%20the%20Permafrost%20Region%202000%202020%20From.pdf doi:10.1029/2023gb007953 info:eu-repo/semantics/OpenAccess ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-04536905 Global Biogeochemical Cycles, 2024, 38 (4), ⟨10.1029/2023gb007953⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2024 ftuniversailles https://doi.org/10.1029/2023gb007953 2024-04-10T23:59:27Z International audience Abstract The northern permafrost region has been projected to shift from a net sink to a net source of carbon under global warming. However, estimates of the contemporary net greenhouse gas (GHG) balance and budgets of the permafrost region remain highly uncertain. Here, we construct the first comprehensive bottom‐up budgets of CO 2 , CH 4 , and N 2 O across the terrestrial permafrost region using databases of more than 1000 in situ flux measurements and a land cover‐based ecosystem flux upscaling approach for the period 2000–2020. Estimates indicate that the permafrost region emitted a mean annual flux of 12 (−606, 661) Tg CO 2 –C yr −1 , 38 (22, 53) Tg CH 4 –C yr −1 , and 0.67 (0.07, 1.3) Tg N 2 O–N yr −1 to the atmosphere throughout the period. Thus, the region was a net source of CH 4 and N 2 O, while the CO 2 balance was near neutral within its large uncertainties. Undisturbed terrestrial ecosystems had a CO 2 sink of −340 (−836, 156) Tg CO 2 –C yr −1 . Vertical emissions from fire disturbances and inland waters largely offset the sink in vegetated ecosystems. When including lateral fluxes for a complete GHG budget, the permafrost region was a net source of C and N, releasing 144 (−506, 826) Tg C yr −1 and 3 (2, 5) Tg N yr −1 . Large uncertainty ranges in these estimates point to a need for further expansion of monitoring networks, continued data synthesis efforts, and better integration of field observations, remote sensing data, and ecosystem models to constrain the contemporary net GHG budgets of the permafrost region and track their future trajectory. Article in Journal/Newspaper permafrost Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Global Biogeochemical Cycles 38 4 |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Ramage, Justine Kuhn, Mckenzie Virkkala, Anna‐maria Voigt, Carolina Marushchak, Maija, E Bastos, Ana Biasi, Christina Canadell, Josep, G Ciais, Philippe López‐blanco, Efrèn Natali, Susan, M Olefeldt, David Potter, Stefano Poulter, Benjamin Rogers, Brendan, M Schuur, Edward, a G Treat, Claire Turetsky, Merritt, R Watts, Jennifer Hugelius, Gustaf The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Abstract The northern permafrost region has been projected to shift from a net sink to a net source of carbon under global warming. However, estimates of the contemporary net greenhouse gas (GHG) balance and budgets of the permafrost region remain highly uncertain. Here, we construct the first comprehensive bottom‐up budgets of CO 2 , CH 4 , and N 2 O across the terrestrial permafrost region using databases of more than 1000 in situ flux measurements and a land cover‐based ecosystem flux upscaling approach for the period 2000–2020. Estimates indicate that the permafrost region emitted a mean annual flux of 12 (−606, 661) Tg CO 2 –C yr −1 , 38 (22, 53) Tg CH 4 –C yr −1 , and 0.67 (0.07, 1.3) Tg N 2 O–N yr −1 to the atmosphere throughout the period. Thus, the region was a net source of CH 4 and N 2 O, while the CO 2 balance was near neutral within its large uncertainties. Undisturbed terrestrial ecosystems had a CO 2 sink of −340 (−836, 156) Tg CO 2 –C yr −1 . Vertical emissions from fire disturbances and inland waters largely offset the sink in vegetated ecosystems. When including lateral fluxes for a complete GHG budget, the permafrost region was a net source of C and N, releasing 144 (−506, 826) Tg C yr −1 and 3 (2, 5) Tg N yr −1 . Large uncertainty ranges in these estimates point to a need for further expansion of monitoring networks, continued data synthesis efforts, and better integration of field observations, remote sensing data, and ecosystem models to constrain the contemporary net GHG budgets of the permafrost region and track their future trajectory. |
author2 |
Stockholm University University of New Hampshire (UNH) Max Planck Institute for Biogeochemistry (MPI-BGC) Max-Planck-Gesellschaft Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
format |
Article in Journal/Newspaper |
author |
Ramage, Justine Kuhn, Mckenzie Virkkala, Anna‐maria Voigt, Carolina Marushchak, Maija, E Bastos, Ana Biasi, Christina Canadell, Josep, G Ciais, Philippe López‐blanco, Efrèn Natali, Susan, M Olefeldt, David Potter, Stefano Poulter, Benjamin Rogers, Brendan, M Schuur, Edward, a G Treat, Claire Turetsky, Merritt, R Watts, Jennifer Hugelius, Gustaf |
author_facet |
Ramage, Justine Kuhn, Mckenzie Virkkala, Anna‐maria Voigt, Carolina Marushchak, Maija, E Bastos, Ana Biasi, Christina Canadell, Josep, G Ciais, Philippe López‐blanco, Efrèn Natali, Susan, M Olefeldt, David Potter, Stefano Poulter, Benjamin Rogers, Brendan, M Schuur, Edward, a G Treat, Claire Turetsky, Merritt, R Watts, Jennifer Hugelius, Gustaf |
author_sort |
Ramage, Justine |
title |
The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
title_short |
The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
title_full |
The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
title_fullStr |
The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
title_full_unstemmed |
The Net GHG Balance and Budget of the Permafrost Region (2000–2020) From Ecosystem Flux Upscaling |
title_sort |
net ghg balance and budget of the permafrost region (2000–2020) from ecosystem flux upscaling |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04536905 https://hal.science/hal-04536905/document https://hal.science/hal-04536905/file/Global%20Biogeochemical%20Cycles%20-%202024%20-%20Ramage%20-%20The%20Net%20GHG%20Balance%20and%20Budget%20of%20the%20Permafrost%20Region%202000%202020%20From.pdf https://doi.org/10.1029/2023gb007953 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-04536905 Global Biogeochemical Cycles, 2024, 38 (4), ⟨10.1029/2023gb007953⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2023gb007953 hal-04536905 https://hal.science/hal-04536905 https://hal.science/hal-04536905/document https://hal.science/hal-04536905/file/Global%20Biogeochemical%20Cycles%20-%202024%20-%20Ramage%20-%20The%20Net%20GHG%20Balance%20and%20Budget%20of%20the%20Permafrost%20Region%202000%202020%20From.pdf doi:10.1029/2023gb007953 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2023gb007953 |
container_title |
Global Biogeochemical Cycles |
container_volume |
38 |
container_issue |
4 |
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1797567666057117696 |