气候变化领域集成服务门户(CCPortal): Short-term effects of experimental trampling on alpine grasslands in Shangri-la, China

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DOI	10.1016/j.gecco.2020.e01161
	Short-term effects of experimental trampling on alpine grasslands in Shangri-la, China
	Li, Wei; He, Shuqiang; Cheng, Xiping; Zhang, Gengxin
通讯作者	Li, W (通讯作者)
发表日期	2020
ISSN	2351-9894
卷号	23
英文摘要	Alpine grasslands provide essential ecosystem functions and services, yet they are increasingly subject to anthropogenic perturbations. Northwest Yunnan (NWY) is one of the most popular tourist destinations in China, and alpine grasslands of NWY are particularly susceptible to human recreational activities such as hiker trampling. However, studies that explicitly evaluate the effects of trampling disturbance on alpine communities of NWY are very limited, let alone research testing the responses of these communities to trampling from a functional trait perspective. The present research is performed in alpine grasslands within and outside of a core nature conservation area of Shangri-La, NWY of China, to study speciesand community-level responses of alpine communities to simulated trampling through a functional trait-based approach. The results showed that although species-specific differences existed, alpine plants generally showed rapid morphological changes in response to trampling disturbance. At the community level, trampling disturbance caused strong shifts in taxonomy-based diversity metrics (e.g., species richness, Simpson's index and Shannon's index) and functional trait-based diversity metrics (e.g., functional richness, functional evenness, functional divergence, and community-weighted mean trait values). Specifically, increased trampling intensity led to a decrease in taxonomic diversity. Meanwhile, functional richness decreased, while functional evenness and functional divergence increased with an increase in trampling intensity. Also, characteristics of alpine community traits had changed towards those with shorter height, reduced leaf size and lower LDMC, and such strong shifts in taxonomic and functional diversity might further affect the functioning and value of alpine grasslands. Therefore, the protection of high-altitude natural grasslands with high sensitivity and vulnerability is urgent, especially as they are increasingly experiencing multiple environ mental and climatic stressors nowadays. (C) 2020 The Authors. Published by Elsevier B.V.
关键词	FUNCTIONAL DIVERSITY INDEXES COMMUNITY RESPONSES CLIMATE-CHANGE PLANT TRAITS FRAMEWORK VEGETATION RICHNESS IMPACTS
英文关键词	Alpine grasslands; Trampling disturbance; Functional traits; Taxonomic diversity; Functional diversity
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology
WOS记录号	WOS:000568728500013
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
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/259710
推荐引用方式 GB/T 7714	Li, Wei,He, Shuqiang,Cheng, Xiping,et al. Short-term effects of experimental trampling on alpine grasslands in Shangri-la, China[J]. 中国科学院青藏高原研究所,2020,23.
APA	Li, Wei,He, Shuqiang,Cheng, Xiping,&Zhang, Gengxin.(2020).Short-term effects of experimental trampling on alpine grasslands in Shangri-la, China.GLOBAL ECOLOGY AND CONSERVATION,23.
MLA	Li, Wei,et al."Short-term effects of experimental trampling on alpine grasslands in Shangri-la, China".GLOBAL ECOLOGY AND CONSERVATION 23(2020).