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Functional identity of leaf dry matter content regulates community stability in the northern Tibetan grasslands

文献类型：期刊论文

作者Hou, Ge2,3; Zhou, Tiancai2,3; Sun, Jian1; Zong, Ning2; Shi, Peili2,3; Yu, Jialuo2,3; Song, Minghua2; Zhu, Juntao2; Zhang, Yangjian2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2022-09-10
卷号838页码:9
关键词Functional diversity Functional identity Biodiversity Leaf dry matter content Community stability Alpine grasslands
ISSN号0048-9697
DOI10.1016/j.scitotenv.2022.156150
通讯作者Zong, Ning(zongning@igsnrr.ac.cn) ; Shi, Peili(shipl@igsnrr.ac.cn)
英文摘要Biodiversity-stability mechanisms have been the focus of many long-term community stability studies. Community functional composition (i.e., functional diversity and functional identity of community plant functional traits) is critical for community stability; however, this topic has received less attention in large-scale studies. Here, we combined a field survey of biodiversity and plant functional traits in 22 alpine grassland sites throughout the northern Tibetan Plateau with 20 years of satellite-sensed proxy data (enhanced vegetation index) of community productivity to identify the factors influencing community stability. Our results showed that functional composition influenced community stability the most, explaining 61.71% of the variation in community stability (of which functional diversity explained 18.56% and functional identity explained 43.15%), which was a higher contribution than that of biodiversity (BergerParker index and species evenness; 35.04%). Structural equation modeling suggested that functional identity strongly affected community stability, whereas biodiversity had a minor impact. Furthermore, functional identity of leaf dry matter content regulated community stability by enhancing species dominance (Berger-Parker index). Our findings demonstrate that functional composition, specifically functional identity, plays a key role in community stability, highlighting the importance of functional identity in understanding and revealing the stabilizing mechanisms in these fragile alpine ecosystems which are subjected to increasing environmental fluctuations.
WOS关键词ECOSYSTEM STABILITY ; TEMPORAL STABILITY ; BIOMASS PRODUCTION ; SPECIES RICHNESS ; PLANT DIVERSITY ; TRAITS ; BIODIVERSITY ; PRODUCTIVITY ; PRECIPITATION ; EVENNESS
资助项目Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302] ; National Natural Science Foundation of China[31870406] ; National Natural Science Foundation of China[42071066] ; West Light Foundation of the Chinese Academy of Sciences
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000861560600015
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/186465]  
专题中国科学院地理科学与资源研究所
通讯作者Zong, Ning; Shi, Peili
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resource, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Ge,Zhou, Tiancai,Sun, Jian,et al. Functional identity of leaf dry matter content regulates community stability in the northern Tibetan grasslands[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,838:9.
APA Hou, Ge.,Zhou, Tiancai.,Sun, Jian.,Zong, Ning.,Shi, Peili.,...&Zhang, Yangjian.(2022).Functional identity of leaf dry matter content regulates community stability in the northern Tibetan grasslands.SCIENCE OF THE TOTAL ENVIRONMENT,838,9.
MLA Hou, Ge,et al."Functional identity of leaf dry matter content regulates community stability in the northern Tibetan grasslands".SCIENCE OF THE TOTAL ENVIRONMENT 838(2022):9.

入库方式： OAI收割

来源：地理科学与资源研究所

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