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Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau | |
Wang, Guanqin1; Li, Fei1; Peng, Yunfeng; Yu, Jianchun1; Zhang, Dianye1; Yang, Guibiao1; Fang, Kai1; Wang, Jun1; Mohammat, Anwar2; Zhou, Guoying3,4; Yang, Yuanhe1 | |
2019 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
卷号 | 14期号:9 |
摘要 | 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. |
关键词 | climate warming meta-analysis carbon cycle carbon-climate feedback alpine ecosystem arctic ecosystem |
学科领域 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
DOI | 10.1088/1748-9326/ab3bbc |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | PERMAFROST CARBON ; AUTOTROPHIC RESPIRATION ; ECOSYSTEM RESPIRATION ; ORGANIC-CARBON ; CLIMATE-CHANGE ; CO2 EFFLUX ; NITROGEN ; PLANT ; TEMPERATURE ; MOISTURE |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
WOS记录号 | WOS:000487691600001 |
出版者 | IOP PUBLISHING LTD |
文献子类 | Article |
出版地 | BRISTOL |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31825006, 41877046] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSWSMC049] ; Chinese Academy of SciencesPeking University Pioneer Cooperation Team |
作者邮箱 | yhyang@ibcas.ac.cn |
作品OA属性 | gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/19817 |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 4.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China 5.Chinese Acad Sci, Key Lab Tibetan Med Res, Xining 810008, Qinghai, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Guanqin,Li, Fei,Peng, Yunfeng,et al. Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(9). |
APA | Wang, Guanqin.,Li, Fei.,Peng, Yunfeng.,Yu, Jianchun.,Zhang, Dianye.,...&Yang, Yuanhe.(2019).Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau.ENVIRONMENTAL RESEARCH LETTERS,14(9). |
MLA | Wang, Guanqin,et al."Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau".ENVIRONMENTAL RESEARCH LETTERS 14.9(2019). |
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