Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming
Abstract The Tibetan Plateau has the largest expanse of high‐elevation permafrost in the world, and it is experiencing climate warming that may jeopardize the functioning of its alpine ecosystems. Many studies have focused on the effects of climate warming on vegetation production and diversity on t...
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crwiley:10.1002/ecs2.2233 2024-09-15T18:29:20+00:00 Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming Yang, Yan Hopping, Kelly A. Wang, Genxu Chen, Ji Peng, Ahui Klein, Julia A. National Natural Science Foundation of China 2018 http://dx.doi.org/10.1002/ecs2.2233 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fecs2.2233 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.2233 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ecs2.2233 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.2233 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Ecosphere volume 9, issue 5 ISSN 2150-8925 2150-8925 journal-article 2018 crwiley https://doi.org/10.1002/ecs2.2233 2024-07-30T04:23:00Z Abstract The Tibetan Plateau has the largest expanse of high‐elevation permafrost in the world, and it is experiencing climate warming that may jeopardize the functioning of its alpine ecosystems. Many studies have focused on the effects of climate warming on vegetation production and diversity on the Plateau, but their disparate results have hindered a comprehensive, regional understanding. From a synthesis of twelve warming experiments across the Plateau, we found that warming increased aboveground net primary production (ANPP) and vegetation height at sites with permafrost, but ANPP decreased with warming at non‐permafrost sites. Aboveground net primary production responded more negatively to warming under drier conditions, due to both annual drought conditions and warming‐induced soil moisture loss. Decreases in species diversity with warming were also larger at sites with permafrost. These results support the emerging understanding that water plays a central role in the functioning of cold environments and suggest that as ecosystems cross a threshold from permafrost to non‐permafrost systems, ANPP will decrease across a greater proportion of the Tibetan Plateau. This study also highlights the future convergence of challenges from permafrost degradation and grassland desertification, requiring new collaborations among these currently distinct research and stakeholder groups. Article in Journal/Newspaper permafrost Wiley Online Library Ecosphere 9 5 e02233 |
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Wiley Online Library |
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English |
description |
Abstract The Tibetan Plateau has the largest expanse of high‐elevation permafrost in the world, and it is experiencing climate warming that may jeopardize the functioning of its alpine ecosystems. Many studies have focused on the effects of climate warming on vegetation production and diversity on the Plateau, but their disparate results have hindered a comprehensive, regional understanding. From a synthesis of twelve warming experiments across the Plateau, we found that warming increased aboveground net primary production (ANPP) and vegetation height at sites with permafrost, but ANPP decreased with warming at non‐permafrost sites. Aboveground net primary production responded more negatively to warming under drier conditions, due to both annual drought conditions and warming‐induced soil moisture loss. Decreases in species diversity with warming were also larger at sites with permafrost. These results support the emerging understanding that water plays a central role in the functioning of cold environments and suggest that as ecosystems cross a threshold from permafrost to non‐permafrost systems, ANPP will decrease across a greater proportion of the Tibetan Plateau. This study also highlights the future convergence of challenges from permafrost degradation and grassland desertification, requiring new collaborations among these currently distinct research and stakeholder groups. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Yang, Yan Hopping, Kelly A. Wang, Genxu Chen, Ji Peng, Ahui Klein, Julia A. |
spellingShingle |
Yang, Yan Hopping, Kelly A. Wang, Genxu Chen, Ji Peng, Ahui Klein, Julia A. Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
author_facet |
Yang, Yan Hopping, Kelly A. Wang, Genxu Chen, Ji Peng, Ahui Klein, Julia A. |
author_sort |
Yang, Yan |
title |
Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
title_short |
Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
title_full |
Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
title_fullStr |
Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
title_full_unstemmed |
Permafrost and drought regulate vulnerability of Tibetan Plateau grasslands to warming |
title_sort |
permafrost and drought regulate vulnerability of tibetan plateau grasslands to warming |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ecs2.2233 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fecs2.2233 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.2233 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ecs2.2233 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.2233 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Ecosphere volume 9, issue 5 ISSN 2150-8925 2150-8925 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1002/ecs2.2233 |
container_title |
Ecosphere |
container_volume |
9 |
container_issue |
5 |
container_start_page |
e02233 |
_version_ |
1810470743778000896 |