Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition
Abstract Arctic and boreal ecosystems play an important role in the global carbon (C) budget, and whether they act as a future net C sink or source depends on climate and environmental change. Here, we used complementary in situ measurements, model simulations, and satellite observations to investig...
Published in: | Global Change Biology |
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Online Access: | http://dx.doi.org/10.1111/gcb.14863 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14863 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14863 |
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crwiley:10.1111/gcb.14863 2024-09-09T19:23:57+00:00 Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition Liu, Zhihua Kimball, John S. Parazoo, Nicholas C. Ballantyne, Ashley P. Wang, Wen J. Madani, Nima Pan, Caleb G. Watts, Jennifer D. Reichle, Rolf H. Sonnentag, Oliver Marsh, Philip Hurkuck, Miriam Helbig, Manuel Quinton, William L. Zona, Donatella Ueyama, Masahito Kobayashi, Hideki Euskirchen, Eugénie S. 2019 http://dx.doi.org/10.1111/gcb.14863 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14863 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14863 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 26, issue 2, page 682-696 ISSN 1354-1013 1365-2486 journal-article 2019 crwiley https://doi.org/10.1111/gcb.14863 2024-07-18T04:26:30Z Abstract Arctic and boreal ecosystems play an important role in the global carbon (C) budget, and whether they act as a future net C sink or source depends on climate and environmental change. Here, we used complementary in situ measurements, model simulations, and satellite observations to investigate the net carbon dioxide (CO 2 ) seasonal cycle and its climatic and environmental controls across Alaska and northwestern Canada during the anomalously warm winter to spring conditions of 2015 and 2016 (relative to 2010–2014). In the warm spring, we found that photosynthesis was enhanced more than respiration, leading to greater CO 2 uptake. However, photosynthetic enhancement from spring warming was partially offset by greater ecosystem respiration during the preceding anomalously warm winter, resulting in nearly neutral effects on the annual net CO 2 balance. Eddy covariance CO 2 flux measurements showed that air temperature has a primary influence on net CO 2 exchange in winter and spring, while soil moisture has a primary control on net CO 2 exchange in the fall. The net CO 2 exchange was generally more moisture limited in the boreal region than in the Arctic tundra. Our analysis indicates complex seasonal interactions of underlying C cycle processes in response to changing climate and hydrology that may not manifest in changes in net annual CO 2 exchange. Therefore, a better understanding of the seasonal response of C cycle processes may provide important insights for predicting future carbon–climate feedbacks and their consequences on atmospheric CO 2 dynamics in the northern high latitudes. Article in Journal/Newspaper Arctic Tundra Alaska Wiley Online Library Arctic Canada Global Change Biology 26 2 682 696 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Arctic and boreal ecosystems play an important role in the global carbon (C) budget, and whether they act as a future net C sink or source depends on climate and environmental change. Here, we used complementary in situ measurements, model simulations, and satellite observations to investigate the net carbon dioxide (CO 2 ) seasonal cycle and its climatic and environmental controls across Alaska and northwestern Canada during the anomalously warm winter to spring conditions of 2015 and 2016 (relative to 2010–2014). In the warm spring, we found that photosynthesis was enhanced more than respiration, leading to greater CO 2 uptake. However, photosynthetic enhancement from spring warming was partially offset by greater ecosystem respiration during the preceding anomalously warm winter, resulting in nearly neutral effects on the annual net CO 2 balance. Eddy covariance CO 2 flux measurements showed that air temperature has a primary influence on net CO 2 exchange in winter and spring, while soil moisture has a primary control on net CO 2 exchange in the fall. The net CO 2 exchange was generally more moisture limited in the boreal region than in the Arctic tundra. Our analysis indicates complex seasonal interactions of underlying C cycle processes in response to changing climate and hydrology that may not manifest in changes in net annual CO 2 exchange. Therefore, a better understanding of the seasonal response of C cycle processes may provide important insights for predicting future carbon–climate feedbacks and their consequences on atmospheric CO 2 dynamics in the northern high latitudes. |
format |
Article in Journal/Newspaper |
author |
Liu, Zhihua Kimball, John S. Parazoo, Nicholas C. Ballantyne, Ashley P. Wang, Wen J. Madani, Nima Pan, Caleb G. Watts, Jennifer D. Reichle, Rolf H. Sonnentag, Oliver Marsh, Philip Hurkuck, Miriam Helbig, Manuel Quinton, William L. Zona, Donatella Ueyama, Masahito Kobayashi, Hideki Euskirchen, Eugénie S. |
spellingShingle |
Liu, Zhihua Kimball, John S. Parazoo, Nicholas C. Ballantyne, Ashley P. Wang, Wen J. Madani, Nima Pan, Caleb G. Watts, Jennifer D. Reichle, Rolf H. Sonnentag, Oliver Marsh, Philip Hurkuck, Miriam Helbig, Manuel Quinton, William L. Zona, Donatella Ueyama, Masahito Kobayashi, Hideki Euskirchen, Eugénie S. Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
author_facet |
Liu, Zhihua Kimball, John S. Parazoo, Nicholas C. Ballantyne, Ashley P. Wang, Wen J. Madani, Nima Pan, Caleb G. Watts, Jennifer D. Reichle, Rolf H. Sonnentag, Oliver Marsh, Philip Hurkuck, Miriam Helbig, Manuel Quinton, William L. Zona, Donatella Ueyama, Masahito Kobayashi, Hideki Euskirchen, Eugénie S. |
author_sort |
Liu, Zhihua |
title |
Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
title_short |
Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
title_full |
Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
title_fullStr |
Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
title_full_unstemmed |
Increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
title_sort |
increased high‐latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/gcb.14863 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14863 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14863 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14863 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_source |
Global Change Biology volume 26, issue 2, page 682-696 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.14863 |
container_title |
Global Change Biology |
container_volume |
26 |
container_issue |
2 |
container_start_page |
682 |
op_container_end_page |
696 |
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1809893906874105856 |