IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Effects of grazing on ecosystem structure and function of alpine grasslands in Qinghai-Tibetan Plateau: a synthesis
Lu, Xuyang1,2; Kelsey, Kathy C.2; Yan, Yan1; Sun, Jian3; Wang, Xiaodan1; Cheng, Genwei1; Neff, Jason C.2
Corresponding AuthorLu, Xuyang
2017
Source PublicationECOSPHERE
ISSN2150-8925
Volume8Issue:1Pages:e01656
SubtypeArticle
Abstract

Humans have grazed on the Qinghai-Tibetan Plateau (QTP) for many thousands of years. In recent decades, the intensity of grazing has increased and several new management strategies have been put into place to address the resulting changes in rangeland condition. Effective management of grazing activities in this region requires understanding the impact of livestock grazing across the diverse array of alpine grassland ecosystems present in the QTP, but recent studies have identified a number of critical uncertainties in the ecological science that underlies these management principles. To address these uncertainties, we carried out a synthesis analysis of the effect of livestock grazing on 26 indicators of ecosystem structure and function based on 61 studies from 88 independent research sites within the QTP. Our synthesis results indicate that livestock grazing exerts complex controls on ecosystem structure and function, which vary according to local landscape characteristics. We found that grazing contributes to greater plant species diversity (Shannon-Wiener index, Simpson dominance index, and Pielou evenness index significantly increased 0.18, 0.05, and 0.03, respectively, due to grazing), but decreased aboveground biomass (47.15%), soil organic carbon (12.41%), soil total nitrogen (12.75%), and microbial biomass carbon (9.42%). Further, ecosystem function is controlled by interactions between grazing and other landscape characteristics such as elevation and mean annual temperature. The management regime currently in place in the QTP, which involves complete exclusion of grazing in some areas, can have variable effects on grassland health. Therefore, the complexity of these responses is an indication that livestock and grassland management may benefit from a more nuanced management regime than is currently utilized in the QTP.

KeywordAlpine Meadow Alpine Steppe Grassland Degradation Grazing Intensity Livestock Grazing "retire Livestock And Restore grasslAnd" (Rlrg)
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1002/ecs2.1656
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordNET PRIMARY PRODUCTION ; BELOW-GROUND BIOMASS ; SOIL ORGANIC-CARBON ; MICROBIAL BIOMASS ; SPECIES RICHNESS ; CLIMATE-CHANGE ; MONGOLIAN GRASSLANDS ; PRIMARY PRODUCTIVITY ; VEGETATION STRUCTURE ; ABOVEGROUND BIOMASS
Language英语
Quartile3区
TOP
WOS SubjectEcology
WOS IDWOS:000396526300005
Funding OrganizationNational Natural Science Foundation of China(41371267 ; Strategic Leading Science and Technology Projects of Chinese Academy of Sciences(XDB03030505) ; 41671262)
Citation statistics
Cited Times:90[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18529
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Univ Colorado, Environm Studies Program, Boulder, CO 80309 USA
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Lu, Xuyang,Kelsey, Kathy C.,Yan, Yan,et al. Effects of grazing on ecosystem structure and function of alpine grasslands in Qinghai-Tibetan Plateau: a synthesis[J]. ECOSPHERE,2017,8(1):e01656.
APA Lu, Xuyang.,Kelsey, Kathy C..,Yan, Yan.,Sun, Jian.,Wang, Xiaodan.,...&Neff, Jason C..(2017).Effects of grazing on ecosystem structure and function of alpine grasslands in Qinghai-Tibetan Plateau: a synthesis.ECOSPHERE,8(1),e01656.
MLA Lu, Xuyang,et al."Effects of grazing on ecosystem structure and function of alpine grasslands in Qinghai-Tibetan Plateau: a synthesis".ECOSPHERE 8.1(2017):e01656.
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