Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau
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 ev...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/ab3bbc |
| _version_ | 1797747939299295232 |
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| author | Guanqin Wang Fei Li Yunfeng Peng Jianchun Yu Dianye Zhang Guibiao Yang Kai Fang Jun Wang Anwar Mohammat Guoying Zhou Yuanhe Yang |
| author_facet | Guanqin Wang Fei Li Yunfeng Peng Jianchun Yu Dianye Zhang Guibiao Yang Kai Fang Jun Wang Anwar Mohammat Guoying Zhou Yuanhe Yang |
| author_sort | Guanqin Wang |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-12T15:58:48Z |
| format | Article |
| id | doaj.art-917fbf344e83494db0e6171f7cb6ffb9 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:58:48Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-917fbf344e83494db0e6171f7cb6ffb92023-08-09T14:45:24ZengIOP PublishingEnvironmental Research Letters1748-93262019-01-0114909401510.1088/1748-9326/ab3bbcResponses of soil respiration to experimental warming in an alpine steppe on the Tibetan PlateauGuanqin Wang0Fei Li1Yunfeng Peng2Jianchun Yu3Dianye Zhang4Guibiao Yang5Kai Fang6Jun Wang7Anwar Mohammat8Guoying Zhou9Yuanhe Yang10https://orcid.org/0000-0002-5399-4606State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaXinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, People’s Republic of ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, People’s Republic of China; Key Laboratory of Tibetan Medicine Research, Chinese Academy of Sciences, Xining 810008, People’s Republic of ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, People’s Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaHigh-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.https://doi.org/10.1088/1748-9326/ab3bbcclimate warmingmeta-analysiscarbon cyclecarbon-climate feedbackalpine ecosystemarctic ecosystem |
| spellingShingle | Guanqin Wang Fei Li Yunfeng Peng Jianchun Yu Dianye Zhang Guibiao Yang Kai Fang Jun Wang Anwar Mohammat Guoying Zhou Yuanhe Yang Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau Environmental Research Letters climate warming meta-analysis carbon cycle carbon-climate feedback alpine ecosystem arctic ecosystem |
| title | 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_short | 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 |
| topic | climate warming meta-analysis carbon cycle carbon-climate feedback alpine ecosystem arctic ecosystem |
| url | https://doi.org/10.1088/1748-9326/ab3bbc |
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