Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance

doi:10.1016/j.scitotenv.2021.145730

	Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance
	Zhang, Ruiyang 2,3; Wang, Zhongwu 2; Niu, Shuli 3; Tian, Dashuan 3; Wu, Qian 2; Gao, Xuefeng 1; Schellenberg, Michael P.4; Han, Guodong 2
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-07-01
卷号	776 页码:9
关键词	Grazing intensity Plant diversity Soil microbial diversity Ecosystem multifunctionality Desert steppe
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.145730
通讯作者	Wang, Zhongwu(wangzhongwu@imau.edu.cn) ; Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要	Biodiversity drives ecosystem functioning across grassland ecosystems. However, few studies have examined how grazing intensity affects ecosystem multifunctionality (EMF) via its effects on plant diversity and soil microbial diversity in dry grasslands. We conducted a 12-year experiment manipulating sheep grazing intensity in a desert steppe of northern China. Through measuring plant species diversity, soil microbial diversity (bacteria diversity) and multiple ecosystem functions (i.e., aboveground net primary productivity, belowground biomass of plant community, temporal stability of ANPP, soil organic matter, moisture, available nitrogen and phosphorus, ecosystem respiration and gross ecosystem productivity), we aimed to understand how grazing intensity affected EMF via changing the diversity of plants and microbes. Our results showed that increasing grazing intensity significantly reduced EMF and most individual ecosystem functions, as well as the diversity of plants and microbes, while EMF and most individual functions were positively related to plant diversity and soil microbial diversity under all grazing intensities. In particular, soil microbial diversity in shallow soil layers (0 & ndash;5 cm depth) had stronger positive correlations with plant diversity and EMF than in deeper soil layers. Furthermore, structural equation modeling (SEM) showed that grazing reduced EMF mainly via reducing plant diversity, rather than by reducing soil microbial diversity. Thus, plant diversity played a more important role in mediating the response of EMF to grazing disturbance. This study highlights the critical role of aboveand belowground diversity in mediating the response of EMF to grazing intensity, which has important implications for biodiversity conservation and sustainability in arid grasslands. (c) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[31660679] ; National Natural Science Foundation of China[31770500] ; National Natural Science Foundation of China[31560140] ; National Natural Science Foundation of China[31760143] ; National Natural Science Foundation of China[31660157] ; National Key Project[2016YFC0500504] ; Inner Mongolia Key Project[zdzx2018020] ; Innovative Research Team of the Ministry of Education of China[IRT_17R59] ; Postdoctoral Science Foundation of China[2020M670438]
WOS关键词	BELOW-GROUND BIODIVERSITY ; DESERT STEPPE ; INNER-MONGOLIA ; LOESS PLATEAU ; PRECIPITATION VARIABILITY ; COMMUNITY COMPOSITION ; CURRENT KNOWLEDGE ; TROPHIC LEVELS ; INTENSITY ; PRODUCTIVITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000647601800023
资助机构	National Natural Science Foundation of China ; National Key Project ; Inner Mongolia Key Project ; Innovative Research Team of the Ministry of Education of China ; Postdoctoral Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162488]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Zhongwu; Niu, Shuli
作者单位	1.Inner Mongolia Normal Univ, Coll Life Sci & Technol, 81 Zhaowuda Rd, Hohhot 010020, Inner Mongolia, Peoples R China 2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm,Key Lab Grass, Minist Agr & Rural Affairs,Inner Mongolia Key Lab, Minist Educ,Key Lab Forage Cultivat Proc & High E, 29 Erdos St, Hohhot 010011, Inner Mongolia, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Agr & Agri Food Canada, Swift Current Res & Dev Ctr, 1 Airport Rd,Box 1030, Swift Current, SK S9H 3X2, Canada
推荐引用方式 GB/T 7714	Zhang, Ruiyang,Wang, Zhongwu,Niu, Shuli,et al. Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,776:9.
APA	Zhang, Ruiyang.,Wang, Zhongwu.,Niu, Shuli.,Tian, Dashuan.,Wu, Qian.,...&Han, Guodong.(2021).Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance.SCIENCE OF THE TOTAL ENVIRONMENT,776,9.
MLA	Zhang, Ruiyang,et al."Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance".SCIENCE OF THE TOTAL ENVIRONMENT 776(2021):9.