Respiratory loss during late-growing season determines the net carbon dioxide sink in northern permafrost regions
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...
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ftpubmed:oai:pubmedcentral.nih.gov:9512808 2023-05-15T17:57:23+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 2022-09-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512808/ http://www.ncbi.nlm.nih.gov/pubmed/36163194 https://doi.org/10.1038/s41467-022-33293-x en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512808/ http://www.ncbi.nlm.nih.gov/pubmed/36163194 http://dx.doi.org/10.1038/s41467-022-33293-x © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-022-33293-x 2022-10-02T00:49:47Z 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. Text permafrost PubMed Central (PMC) Nature Communications 13 1 |
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Article 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 |
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Article |
description |
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. |
format |
Text |
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 |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512808/ http://www.ncbi.nlm.nih.gov/pubmed/36163194 https://doi.org/10.1038/s41467-022-33293-x |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512808/ http://www.ncbi.nlm.nih.gov/pubmed/36163194 http://dx.doi.org/10.1038/s41467-022-33293-x |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41467-022-33293-x |
container_title |
Nature Communications |
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13 |
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1 |
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1766165792011845632 |