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Diversity of plant and soil microbes mediates the response of ecosystem multifunctionality to grazing disturbance
Zhang, Ruiyang1,2; Wang, Zhongwu1; Niu, Shuli2; Tian, Dashuan2; Wu, Qian1; Gao, Xuefeng4; Schellenberg, Michael P.3; Han, Guodong1
2021-07-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume776Pages:9
Corresponding AuthorWang, Zhongwu(wangzhongwu@imau.edu.cn) ; Niu, Shuli(sniu@igsnrr.ac.cn)
AbstractBiodiversity 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.
KeywordGrazing intensity Plant diversity Soil microbial diversity Ecosystem multifunctionality Desert steppe
DOI10.1016/j.scitotenv.2021.145730
WOS KeywordBELOW-GROUND BIODIVERSITY ; DESERT STEPPE ; INNER-MONGOLIA ; LOESS PLATEAU ; PRECIPITATION VARIABILITY ; COMMUNITY COMPOSITION ; CURRENT KNOWLEDGE ; TROPHIC LEVELS ; INTENSITY ; PRODUCTIVITY
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000647601800023
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162489
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Zhongwu; Niu, Shuli
Affiliation1.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
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Agr & Agri Food Canada, Swift Current Res & Dev Ctr, 1 Airport Rd,Box 1030, Swift Current, SK S9H 3X2, Canada
4.Inner Mongolia Normal Univ, Coll Life Sci & Technol, 81 Zhaowuda Rd, Hohhot 010020, Inner Mongolia, Peoples R China
Recommended Citation
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.
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