NWIPB OpenIR
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
2019
Source PublicationENVIRONMENTAL RESEARCH LETTERS
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
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/59711
Collection中国科学院西北高原生物研究所
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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