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Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau

文献类型：期刊论文

作者Wang, Guanqin2; Li, Fei2; Peng, Yunfeng; Yu, Jianchun2; Zhang, Dianye2; Yang, Guibiao2; Fang, Kai2; Wang, Jun2; Mohammat, Anwar3; Zhou, Guoying4,5
刊名ENVIRONMENTAL RESEARCH LETTERS
出版日期2019
卷号14期号:9
关键词climate warming meta-analysis carbon cycle carbon-climate feedback alpine ecosystem arctic ecosystem
ISSN号1748-9326
DOI10.1088/1748-9326/ab3bbc
文献子类Article
英文摘要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.
学科主题Environmental Sciences ; Meteorology & Atmospheric Sciences
出版地BRISTOL
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
语种英语
WOS记录号WOS:000487691600001
出版者IOP PUBLISHING LTD
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
源URL[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, Key Lab Tibetan Med Res, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
5.Chinese Acad Sci, Northwest Inst Plateau Biol, 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).

入库方式： OAI收割

来源：植物研究所

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