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Changing plant species composition and richness benefit soil carbon sequestration under climate warming

文献类型：期刊论文

作者Yan, Yingjie1,2,5; Niu, Shuli1,2,5; He, Yicheng1; Wang, Song1,2,5; Song, Lei1,2,5; Peng, Jinlong1,2,5; Chen, Xinli3; Quan, Quan1; Meng, Cheng1; Zhou, Qingping4
刊名FUNCTIONAL ECOLOGY
出版日期2022-11-02
页码11
ISSN号0269-8463
关键词climate warming dominant functional type land-use change soil organic carbon species richness
DOI10.1111/1365-2435.14218
通讯作者Niu, Shuli(sniu@igsnrr.ac.cn) ; Wang, Jinsong(wangjinsong@igsnrr.ac.cn)
英文摘要Anthropogenic warming and land-use change are expected to accelerate global soil organic carbon (SOC) losses and change plant species composition and richness. However, how changes in plant composition and species richness mediate SOC responses to climate warming and land-use change remains poorly understood. Using data from a 7-year warming and clipping field experiment in an alpine meadow on the Qinghai-Tibetan Plateau, we examined the direct effects of warming and clipping on SOC storage versus their indirect effects mediated by plant functional type and species richness. We found that warming significantly increased SOC storage by 8.1% and clipping decreased it by 6.4%, which was closely correlated with the corresponding response of below-ground net primary productivity (BNPP). We also found a negative correlation between SOC storage and species richness, which was ascribed to the increased BNPP via enhancing the dominance of grasses and decreasing species richness under warming. The lower SOC storage under clipping was caused by the clipping-induced decrease in BNPP via weakening the dominance of grasses and increasing species richness. Our findings highlight that the SOC storage in this alpine meadow under climate warming and clipping was primarily governed by BNPP changes, which was mediated by changes in the dominance of grasses and species richness. Overall, our study demonstrates that shifting to the dominance of grasses and changing species richness would benefit soil C sequestration under climate warming, but this positive effect would be dampened by grazing or hay harvest. Read the free Plain Language Summary for this article on the Journal blog.
WOS关键词ORGANIC-CARBON ; INTERANNUAL VARIABILITY ; ALPINE MEADOW ; CO2 EFFLUX ; PRODUCTIVITY ; DIVERSITY ; RESPIRATION ; RESPONSES ; BIODIVERSITY ; ECOSYSTEM
资助项目National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[32171593] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者WILEY
WOS记录号WOS:000877955800001
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program
源URL[http://ir.igsnrr.ac.cn/handle/311030/186331]  
专题中国科学院地理科学与资源研究所
通讯作者Niu, Shuli; Wang, Jinsong
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Dept Ecol, Beijing, Peoples R China
3.Univ Alberta, Dept Renewable Resources, Edmonton, AB, Canada
4.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu, Peoples R China
5.Univ Chinese Acad Sci, Dept Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Yingjie,Niu, Shuli,He, Yicheng,et al. Changing plant species composition and richness benefit soil carbon sequestration under climate warming[J]. FUNCTIONAL ECOLOGY,2022:11.
APA Yan, Yingjie.,Niu, Shuli.,He, Yicheng.,Wang, Song.,Song, Lei.,...&Wang, Jinsong.(2022).Changing plant species composition and richness benefit soil carbon sequestration under climate warming.FUNCTIONAL ECOLOGY,11.
MLA Yan, Yingjie,et al."Changing plant species composition and richness benefit soil carbon sequestration under climate warming".FUNCTIONAL ECOLOGY (2022):11.

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来源：地理科学与资源研究所

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