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Grazing exclusion jeopardizes plant biodiversity effect but enhances dryness effect on multifunctionality in arid grasslands

文献类型：期刊论文

作者Yu, Lingfei4,5; Sun, Wenjuan4; Zhang, Haiyang5; Cong, Nan3; Chen, Yuan1,2; Hu, Jinjiao1,2; Jing, Xin1,2
刊名AGRICULTURE ECOSYSTEMS & ENVIRONMENT
出版日期2024-04-01
卷号363页码:10
ISSN号0167-8809
关键词Arid grasslands Biodiversity Ecosystem multifunctionality Grazing exclusion
DOI10.1016/j.agee.2024.108883
通讯作者Jing, Xin(jingx@lzu.edu.cn)
英文摘要Grassland biodiversity is vital for the provision of multiple ecosystem functions, termed ecosystem multifunctionality. As an effective practice of grassland management, grazing exclusion is widely used to restore the ecosystem multifunctionality of degraded grasslands, but it might not be always beneficial for conserving grassland biodiversity. Moreover, when grazing is excluded, it remains unknown whether grassland biodiversity promotes multifunctionality. Here, we conducted a field experiment of grazing exclusion along a gradient of climatic aridity across four major grassland types in the arid grasslands of northern China. We determined the effects of grazing exclusion on biodiversity and multifunctionality, and further investigated how grazing exclusion could modify biodiversity-multifunctionality relationships. We found that grazing exclusion increased soil fungal diversity, but had negligible effects on plant species richness and soil bacterial diversity. The effects of grazing exclusion on multifunctionality varied among grassland types: it promoted multifunctionality only in less arid grasslands. Importantly, multifunctionality was positively associated with plant species richness under grazing, but this positive association disappeared under grazing exclusion. In addition, we showed that climatic aridity affected multifunctionality indirectly through its negative effect on plant species richness under grazing, whereas such effect disappeared under grazing exclusion. Furthermore, aridity weakly reduced multifunctionality under grazing, and its negative effect was strengthened under grazing exclusion. Our results suggest that grazing exclusion restrains the capacity of plant biodiversity to sustain multiple ecosystem functions, and moreover, aggravates the negative influences of climatic dryness on ecosystem multifunctionality. Our findings illustrate the value of grazing for maintaining biodiversity-multifunctionality relationships and for mitigating the impacts of climate change in arid grasslands.
WOS关键词LAND-USE ; ECOSYSTEM MULTIFUNCTIONALITY ; SEMIARID GRASSLANDS ; MICROBIAL BIOMASS ; DIVERSITY ; CARBON ; SELECTION ; CHINA
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA26010103] ; Major Program for Basic Research Project of Yunnan Province[202101BC070002]
WOS研究方向Agriculture ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:001166003500001
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Program for Basic Research Project of Yunnan Province
源URL[http://ir.igsnrr.ac.cn/handle/311030/203065]  
专题中国科学院地理科学与资源研究所
通讯作者Jing, Xin
作者单位1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
2.Lanzhou Univ, State Key Lab Herbage Improvement & Grassland Agr, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
5.Hebei Univ, Sch Life Sci, Baoding 071002, Hebei, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Lingfei,Sun, Wenjuan,Zhang, Haiyang,et al. Grazing exclusion jeopardizes plant biodiversity effect but enhances dryness effect on multifunctionality in arid grasslands[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2024,363:10.
APA Yu, Lingfei.,Sun, Wenjuan.,Zhang, Haiyang.,Cong, Nan.,Chen, Yuan.,...&Jing, Xin.(2024).Grazing exclusion jeopardizes plant biodiversity effect but enhances dryness effect on multifunctionality in arid grasslands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,363,10.
MLA Yu, Lingfei,et al."Grazing exclusion jeopardizes plant biodiversity effect but enhances dryness effect on multifunctionality in arid grasslands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 363(2024):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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