Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau
Abstract High-latitude and high-altitude ecosystems store large amounts of carbon (C) and play a vital role in the global C cycle. Soil respiration ( R S ) in these ecosystems is believed to be extremely sensitive to climate warming and could potentially trigger positive C-climate feedback. However,...
Published in: | Environmental Research Letters |
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Online Access: | http://dx.doi.org/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc/pdf |
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crioppubl:10.1088/1748-9326/ab3bbc 2024-06-23T07:50:05+00:00 Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau Wang, Guanqin Li, Fei Peng, Yunfeng Yu, Jianchun Zhang, Dianye Yang, Guibiao Fang, Kai Wang, Jun Mohammat, Anwar Zhou, Guoying Yang, Yuanhe National Natural Science Foundation of China 2019 http://dx.doi.org/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 14, issue 9, page 094015 ISSN 1748-9326 journal-article 2019 crioppubl https://doi.org/10.1088/1748-9326/ab3bbc 2024-06-10T04:11:34Z Abstract High-latitude and high-altitude ecosystems store large amounts of carbon (C) and play a vital role in the global C cycle. Soil respiration ( R S ) in these ecosystems is believed to be extremely sensitive to climate warming and could potentially trigger positive C-climate feedback. However, this evidence is largely derived from wet ecosystems, with limited observations from dry ecosystems. Here, we explored the responses of R S , autotrophic ( R A ), and heterotrophic ( R H ) respiration under experimental warming in a dry ecosystem, an alpine steppe on the Tibetan Plateau. We assessed the effects of soil temperature and moisture dynamics on R S , R A, and R H and performed a meta-analysis to examine whether the warming effects observed were similar to those reported in wet ecosystems, including Tibetan alpine meadow and arctic ecosystem. Experimental warming did not alter R S , R A, and R H in this alpine steppe, likely because decreased soil moisture constrained positive warming effects. In contrast, the meta-analysis revealed that R S exhibited a significant increase under experimental warming in both the Tibetan alpine meadow and arctic wet tundra. These results demonstrate that R S exhibits different responses to climate warming between dry and wet ecosystems, suggesting potential more complex C-climate feedback in cold regions. Article in Journal/Newspaper Arctic Tundra IOP Publishing Arctic Environmental Research Letters 14 9 094015 |
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IOP Publishing |
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Abstract High-latitude and high-altitude ecosystems store large amounts of carbon (C) and play a vital role in the global C cycle. Soil respiration ( R S ) in these ecosystems is believed to be extremely sensitive to climate warming and could potentially trigger positive C-climate feedback. However, this evidence is largely derived from wet ecosystems, with limited observations from dry ecosystems. Here, we explored the responses of R S , autotrophic ( R A ), and heterotrophic ( R H ) respiration under experimental warming in a dry ecosystem, an alpine steppe on the Tibetan Plateau. We assessed the effects of soil temperature and moisture dynamics on R S , R A, and R H and performed a meta-analysis to examine whether the warming effects observed were similar to those reported in wet ecosystems, including Tibetan alpine meadow and arctic ecosystem. Experimental warming did not alter R S , R A, and R H in this alpine steppe, likely because decreased soil moisture constrained positive warming effects. In contrast, the meta-analysis revealed that R S exhibited a significant increase under experimental warming in both the Tibetan alpine meadow and arctic wet tundra. These results demonstrate that R S exhibits different responses to climate warming between dry and wet ecosystems, suggesting potential more complex C-climate feedback in cold regions. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Wang, Guanqin Li, Fei Peng, Yunfeng Yu, Jianchun Zhang, Dianye Yang, Guibiao Fang, Kai Wang, Jun Mohammat, Anwar Zhou, Guoying Yang, Yuanhe |
spellingShingle |
Wang, Guanqin Li, Fei Peng, Yunfeng Yu, Jianchun Zhang, Dianye Yang, Guibiao Fang, Kai Wang, Jun Mohammat, Anwar Zhou, Guoying Yang, Yuanhe Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
author_facet |
Wang, Guanqin Li, Fei Peng, Yunfeng Yu, Jianchun Zhang, Dianye Yang, Guibiao Fang, Kai Wang, Jun Mohammat, Anwar Zhou, Guoying Yang, Yuanhe |
author_sort |
Wang, Guanqin |
title |
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
title_short |
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
title_full |
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
title_fullStr |
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
title_full_unstemmed |
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau |
title_sort |
responses of soil respiration to experimental warming in an alpine steppe on the tibetan plateau |
publisher |
IOP Publishing |
publishDate |
2019 |
url |
http://dx.doi.org/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc https://iopscience.iop.org/article/10.1088/1748-9326/ab3bbc/pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Environmental Research Letters volume 14, issue 9, page 094015 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ab3bbc |
container_title |
Environmental Research Letters |
container_volume |
14 |
container_issue |
9 |
container_start_page |
094015 |
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1802640858569244672 |