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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
Source PublicationENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
Volume14Issue:9
AbstractHigh-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.
Keywordclimate warming meta-analysis carbon cycle carbon-climate feedback alpine ecosystem arctic ecosystem
Subject AreaEnvironmental Sciences ; Meteorology & Atmospheric Sciences
DOI10.1088/1748-9326/ab3bbc
Indexed BySCI
Language英语
WOS KeywordPERMAFROST CARBON ; AUTOTROPHIC RESPIRATION ; ECOSYSTEM RESPIRATION ; ORGANIC-CARBON ; CLIMATE-CHANGE ; CO2 EFFLUX ; NITROGEN ; PLANT ; TEMPERATURE ; MOISTURE
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS IDWOS:000487691600001
PublisherIOP PUBLISHING LTD
SubtypeArticle
Publication PlaceBRISTOL
Funding OrganizationNational 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
Corresponding Author Emailyhyang@ibcas.ac.cn
OAgold
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/19817
Collection植被与环境变化国家重点实验室
Affiliation1.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
Recommended Citation
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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