Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China

doi:10.1016/j.gecco.2020.e01237

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China
	Ye, Ruhan 3; Liu, Guofang 1; Chang, Hong 3; Shan, Yumei 3; Mu, Lan 3; Wen, Chao 3; Te, Rigele 3; Wu, Nitu ; Shi, Lei 3; Liu, Yahong 3
刊名	GLOBAL ECOLOGY AND CONSERVATION
	2020
卷号	24
关键词	Stipa breviflora Functional traits Annual precipitation Grazing intensity Desert steppe Trait plasticity
ISSN号	2351-9894
DOI	10.1016/j.gecco.2020.e01237
文献子类	Article
英文摘要	As a grassland type distributed in the desert steppe with warmer climate in the steppe region of central Asia, Stipa breviflora steppe has the following characteristics, i.e. transition and vulnerability. Therefore, it is susceptible to global climate changes and anthropogenic disturbances. The resistance and resilience of a plant community to the disturbances or climate changes mainly depend on plant functional traits of the dominant species. Yet there are few studies focus on the interaction between annual precipitation and grazing pressure on the variation of plant traits of desert steppe. We investigated the functional traits of S. breviflora under contrasting annual precipitations (wet and dry years) and different long-term grazing intensities (no grazing, light grazing, moderate grazing, MG, and heavy grazing, HG), and revealed the influence of grazing and the precipitation on the variability of functional traits of S. breviflora. Moreover, we discussed the vulnerable grassland type's adaptation mechanism to grazing disturbances and precipitation changes, and its grazing adaptation strategy under different annual rainfall precipitation conditions. Plant height, coverage, above-ground biomass, leaf length, single leaf area of S. breviflora, were sensitive to grazing interference and precipitation, while leaf dry matter content, specific leaf area, and leaf nitrogen content were inert traits. S. breviflora's resistance and resilience in response to grazing disturbance strongly depended on rainfall conditions. In the dry year, the functional traits of S. breviflora showed higher plasticity in responses to grazing treatment, in which moderate interference was favorable for the compensatory growth of S. breviflora. The functional traits of S. breviflora were not sensitive to the drastic changes of precipitation in grazing exclusion plot for many years. It was concluded that grazing in dry year had an adverse effect on S. breviflora desert steppe, and that light grazing or banning grazing in dry years is a better management practice for the desert steppe. (C) 2020 The Authors. Published by Elsevier B.V.
学科主题	Biodiversity Conservation ; Ecology
出版地	AMSTERDAM
WOS关键词	FUNCTIONAL TRAITS ; COMMUNITY COMPOSITION ; SPECIES COMPOSITION ; MARKERS ; PRODUCTIVITY ; DISTURBANCE ; GRASSLANDS ; HERBIVORES ; VEGETATION ; EFFICIENCY
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000608478800019
资助机构	Science and Technology Innovation Project Grassland Non-biological Disaster Prevention and Mitigation Team of Chinese Academy of Agricultural Sciences [CAAS-ASTIP-IGR2015-04] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31860138, 31960246] ; Natural Science Foundation of Inner Mongolia [2019MS03029]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21476]
专题	植被与环境变化国家重点实验室
作者单位	1.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot 010031, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Agr Sci, Inst Grassland Res, Hohhot 010010, Peoples R China
推荐引用方式 GB/T 7714	Ye, Ruhan,Liu, Guofang,Chang, Hong,et al. Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China[J]. GLOBAL ECOLOGY AND CONSERVATION,2020,24.
APA	Ye, Ruhan.,Liu, Guofang.,Chang, Hong.,Shan, Yumei.,Mu, Lan.,...&Li, Fei.(2020).Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China.GLOBAL ECOLOGY AND CONSERVATION,24.
MLA	Ye, Ruhan,et al."Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China".GLOBAL ECOLOGY AND CONSERVATION 24(2020).