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Biotic effects dominate the inter-annual variability in ecosystem carbon exchange in a Tibetan alpine meadow

文献类型：期刊论文

作者Xu, Mingjie2; Sun, Yi3; Zhang, Tao2; Zhang, Yangjian1,4,5; Zhu, Juntao1,4; He, Yongtao1,5; Wang, Liwei2; Yu, Guirui1,5
刊名JOURNAL OF PLANT ECOLOGY
出版日期2022-10-01
卷号15期号:5页码:882-896
ISSN号1752-9921
关键词biotic controls climatic controls carbon flux productivity grassland
DOI10.1093/jpe/rtac005
通讯作者Zhang, Tao(zhangt@syau.edu.cn) ; Zhang, Yangjian(zhangyj@igsurr.ac.cn)
英文摘要The alpine meadow ecosystem in Tibet is fragile and sensitive, and its carbon sink function with respect to climate change has become a matter of widespread concern. Therefore, this study aims to clarify the inter-annual variations (IAVs) in the carbon fluxes in an alpine meadow and to further quantify the contributions of the driving factors to the IAVs. Based on 7 years of flux data (2012-2018) and the corresponding climatic and biotic data, a set of look-up tables was used to separate and quantify the IAV sources. Furthermore, linear perturbation analyses were employed to quantify the contributions of each key factor. During 2012-2018, the net ecosystem productivity (NEP), gross primary productivity (GPP) and ecosystem respiration (Re) of this alpine meadow were 3.31 +/- 26.90, 210.18 +/- 48.35 and 206.88 +/- 28.45 g C m(-2) y(-1), respectively, which indicated relatively large IAVs. When the contributions of climatic and biotic effects were distinguished and quantified, the dominant effects of biotic factors emerged. Additionally, negative interactions between climatic and biotic effects were detected. Among the climatic factors, only soil water content contributed relatively more to the IAVs and played a role in regulating the interactions between climatic and biotic effects. These results suggest that biotic effects must be carefully considered to reduce the uncertainties associated with future carbon flux estimates.
WOS关键词CO2 EXCHANGE ; CONTRASTING RESPONSES ; PRIMARY PRODUCTIVITY ; CLIMATE VARIABILITY ; FUNCTIONAL-CHANGES ; DIOXIDE EXCHANGE ; FLUXES ; WATER ; SOIL ; TEMPERATURE
资助项目National Natural Science Foundation of China[41725003] ; National Natural Science Foundation of China[31600362] ; National Natural Science Foundation of China[32061143037] ; China Postdoctoral Science Foundation[2021M692230] ; China Postdoctoral Science Foundation[2018M631819] ; National Key Research and Development Program of China[2017YFA0604801] ; Science and technology research project of Liaoning Provincial Department of Education[LSNQN201720]
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology ; Forestry
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000852303100002
资助机构National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; Science and technology research project of Liaoning Provincial Department of Education
源URL[http://ir.igsnrr.ac.cn/handle/311030/182877]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Tao; Zhang, Yangjian
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Shenyang Agr Univ, Coll Agron, Shenyang 110866, Peoples R China
3.Huludao Meteorol Bur Liaoning Prov, Huludao 125080, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Mingjie,Sun, Yi,Zhang, Tao,et al. Biotic effects dominate the inter-annual variability in ecosystem carbon exchange in a Tibetan alpine meadow[J]. JOURNAL OF PLANT ECOLOGY,2022,15(5):882-896.
APA Xu, Mingjie.,Sun, Yi.,Zhang, Tao.,Zhang, Yangjian.,Zhu, Juntao.,...&Yu, Guirui.(2022).Biotic effects dominate the inter-annual variability in ecosystem carbon exchange in a Tibetan alpine meadow.JOURNAL OF PLANT ECOLOGY,15(5),882-896.
MLA Xu, Mingjie,et al."Biotic effects dominate the inter-annual variability in ecosystem carbon exchange in a Tibetan alpine meadow".JOURNAL OF PLANT ECOLOGY 15.5(2022):882-896.

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来源：地理科学与资源研究所

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