气候变化领域集成服务门户(CCPortal): Carbon and nitrogen cycling on the Qinghai-Tibetan Plateau

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DOI	10.1038/s43017-022-00344-2
	Carbon and nitrogen cycling on the Qinghai-Tibetan Plateau
	Chen, Huai; Ju, Peijun; Zhu, Qiuan; Xu, Xingliang; Wu, Ning; Gao, Yongheng; Feng, Xiaojuan; Tian, Jianqing; Niu, Shuli; Zhang, Yangjian; Peng, Changhui; Wang, Yanfen
发表日期	2022
EISSN	2662-138X
起始页码	701
结束页码	716
卷号	3 期号:10
英文摘要	The Qinghai-Tibetan Plateau (QTP) has experienced atmospheric warming, cryosphere thaw and intensified human activities since the 1970s. These changes have had sometimes striking impacts on the hydrology, ecosystems and biogeochemistry of the region. In this Review, we describe carbon and nitrogen cycling on the QTP. Overall, the QTP has been a net carbon sink (with a net carbon balance of similar to 44 million tons of carbon uptake peryear) and a methane source (similar to 0.96 trillion grams per year of carbon in the form of methane, TgCH(4)-Cyr(-1)) since the 2000s. Rising temperatures, precipitation and nitrogen availability drive primary productivity increases, leading to increased carbon uptake. Conversely, these factors also increase greenhouse gas emissions, soil respiration rates and permafrost carbon mobilization, increasing carbon loss. Anthropogenic activities such as overgrazing and construction decrease plant production and soil carbon and nitrogen stocks, but restoration efforts on the QTP drive regional increases in these stocks. On balance, these changes are complex but largely offset each other. In the future, the QTP is predicted to still function as a net carbon sink, despite ongoing severe permafrost degradation. Moreover, nitrogen stocks are expected to remain relatively stable, partly related to potential future decreases in nitrogen deposition.
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000860371500001
来源期刊	NATURE REVIEWS EARTH & ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280731
作者单位	Chinese Academy of Sciences; Chengdu Institute of Biology, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Hohai University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; Institute of Botany, CAS; Hunan Normal University; University of Quebec; University of Quebec Montreal; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS
推荐引用方式 GB/T 7714	Chen, Huai,Ju, Peijun,Zhu, Qiuan,et al. Carbon and nitrogen cycling on the Qinghai-Tibetan Plateau[J]. 中国科学院青藏高原研究所,2022,3(10).
APA	Chen, Huai.,Ju, Peijun.,Zhu, Qiuan.,Xu, Xingliang.,Wu, Ning.,...&Wang, Yanfen.(2022).Carbon and nitrogen cycling on the Qinghai-Tibetan Plateau.NATURE REVIEWS EARTH & ENVIRONMENT,3(10).
MLA	Chen, Huai,et al."Carbon and nitrogen cycling on the Qinghai-Tibetan Plateau".NATURE REVIEWS EARTH & ENVIRONMENT 3.10(2022).