Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions
International audience Warming of northern high latitude regions (NHL, > 50 °N) has increased both photosynthesis and respiration which results in considerable uncertainty regarding the net carbon dioxide (CO 2 ) balance of NHL ecosystems. Using estimates constrained from atmospheric observations...
Published in: | Nature Communications |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353/document https://hal-insu.archives-ouvertes.fr/insu-03824353/file/s41467-022-33293-x.pdf https://doi.org/10.1038/s41467-022-33293-x |
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ftunivnantes:oai:HAL:insu-03824353v1 2023-05-15T17:57:24+02:00 Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions Liu, Zhihua Kimball, John S. Ballantyne, Ashley P. Parazoo, Nicholas C. Wang, Wen J. Bastos, Ana Madani, Nima Natali, Susan M. Watts, Jennifer D. Rogers, Brendan M. Ciais, Philippe Yu, Kailiang Virkkala, Anna-Maria Chevallier, Frederic Peters, Wouter Patra, Prabir K. Chandra, Naveen Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2022 https://hal-insu.archives-ouvertes.fr/insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353/document https://hal-insu.archives-ouvertes.fr/insu-03824353/file/s41467-022-33293-x.pdf https://doi.org/10.1038/s41467-022-33293-x en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-33293-x insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353/document https://hal-insu.archives-ouvertes.fr/insu-03824353/file/s41467-022-33293-x.pdf BIBCODE: 2022NatCo.13.5626L doi:10.1038/s41467-022-33293-x http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal-insu.archives-ouvertes.fr/insu-03824353 Nature Communications, 2022, 13, ⟨10.1038/s41467-022-33293-x⟩ [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1038/s41467-022-33293-x 2023-02-08T02:17:22Z International audience Warming of northern high latitude regions (NHL, > 50 °N) has increased both photosynthesis and respiration which results in considerable uncertainty regarding the net carbon dioxide (CO 2 ) balance of NHL ecosystems. Using estimates constrained from atmospheric observations from 1980 to 2017, we find that the increasing trends of net CO 2 uptake in the early-growing season are of similar magnitude across the tree cover gradient in the NHL. However, the trend of respiratory CO 2 loss during late-growing season increases significantly with increasing tree cover, offsetting a larger fraction of photosynthetic CO 2 uptake, and thus resulting in a slower rate of increasing annual net CO 2 uptake in areas with higher tree cover, especially in central and southern boreal forest regions. The magnitude of this seasonal compensation effect explains the difference in net CO 2 uptake trends along the NHL vegetation- permafrost gradient. Such seasonal compensation dynamics are not captured by dynamic global vegetation models, which simulate weaker respiration control on carbon exchange during the late-growing season, and thus calls into question projections of increasing net CO 2 uptake as high latitude ecosystems respond to warming climate conditions. Article in Journal/Newspaper permafrost Université de Nantes: HAL-UNIV-NANTES Nature Communications 13 1 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Liu, Zhihua Kimball, John S. Ballantyne, Ashley P. Parazoo, Nicholas C. Wang, Wen J. Bastos, Ana Madani, Nima Natali, Susan M. Watts, Jennifer D. Rogers, Brendan M. Ciais, Philippe Yu, Kailiang Virkkala, Anna-Maria Chevallier, Frederic Peters, Wouter Patra, Prabir K. Chandra, Naveen Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Warming of northern high latitude regions (NHL, > 50 °N) has increased both photosynthesis and respiration which results in considerable uncertainty regarding the net carbon dioxide (CO 2 ) balance of NHL ecosystems. Using estimates constrained from atmospheric observations from 1980 to 2017, we find that the increasing trends of net CO 2 uptake in the early-growing season are of similar magnitude across the tree cover gradient in the NHL. However, the trend of respiratory CO 2 loss during late-growing season increases significantly with increasing tree cover, offsetting a larger fraction of photosynthetic CO 2 uptake, and thus resulting in a slower rate of increasing annual net CO 2 uptake in areas with higher tree cover, especially in central and southern boreal forest regions. The magnitude of this seasonal compensation effect explains the difference in net CO 2 uptake trends along the NHL vegetation- permafrost gradient. Such seasonal compensation dynamics are not captured by dynamic global vegetation models, which simulate weaker respiration control on carbon exchange during the late-growing season, and thus calls into question projections of increasing net CO 2 uptake as high latitude ecosystems respond to warming climate conditions. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Liu, Zhihua Kimball, John S. Ballantyne, Ashley P. Parazoo, Nicholas C. Wang, Wen J. Bastos, Ana Madani, Nima Natali, Susan M. Watts, Jennifer D. Rogers, Brendan M. Ciais, Philippe Yu, Kailiang Virkkala, Anna-Maria Chevallier, Frederic Peters, Wouter Patra, Prabir K. Chandra, Naveen |
author_facet |
Liu, Zhihua Kimball, John S. Ballantyne, Ashley P. Parazoo, Nicholas C. Wang, Wen J. Bastos, Ana Madani, Nima Natali, Susan M. Watts, Jennifer D. Rogers, Brendan M. Ciais, Philippe Yu, Kailiang Virkkala, Anna-Maria Chevallier, Frederic Peters, Wouter Patra, Prabir K. Chandra, Naveen |
author_sort |
Liu, Zhihua |
title |
Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
title_short |
Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
title_full |
Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
title_fullStr |
Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
title_full_unstemmed |
Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
title_sort |
respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353/document https://hal-insu.archives-ouvertes.fr/insu-03824353/file/s41467-022-33293-x.pdf https://doi.org/10.1038/s41467-022-33293-x |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal-insu.archives-ouvertes.fr/insu-03824353 Nature Communications, 2022, 13, ⟨10.1038/s41467-022-33293-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-33293-x insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353 https://hal-insu.archives-ouvertes.fr/insu-03824353/document https://hal-insu.archives-ouvertes.fr/insu-03824353/file/s41467-022-33293-x.pdf BIBCODE: 2022NatCo.13.5626L doi:10.1038/s41467-022-33293-x |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-022-33293-x |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
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1766165820496412672 |