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Plant community ecological strategy assembly response to yak grazing in an alpine meadow on the eastern Tibetan Plateau

文献类型：期刊论文

作者Wang, Jun1,2,3,4; Zhang, Chunyan5; Yang, Hao3,4; Mou, Chengxiang3,4; Mo, Li3,4; Luo, Peng3,4
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2018-09-01
卷号29期号:9页码:2920-2931
关键词alpine meadow CSR theory yak grazing the Tibetan Plateau vegetation degradation
ISSN号1085-3278
DOI110.1002/ldr.3050
产权排序1
文献子类Article
英文摘要Predicting the impact of grazing on vegetation structure, and thus on ecosystem services, is one of the main technical bottlenecks in alpine grassland conservation and management. However, past researches based on the fixed, discrete, and qualitative indicators limited our understanding for the effect of grazing on plant community assembly. Research based on the quantitative competitor, stress tolerator, and ruderal (CSR) theory increases the possibilities for analyzing this ecological process. To test the hypothesis that the dominant plant strategy in alpine meadow plant community will shift from S-selection to R-selection with increased grazing intensity, the plant community CSR strategy assemblies among the cold-seasonal grazing meadows along a gradient of grazing intensity were studied on the eastern Tibetan Plateau. The dominant strategy concentrated in the S-selected corner under the low grazing intensity, which provided a direct evidence to the environmental filters in the alpine area, and suggested that species of strong S-selection should dominate the undisturbed alpine grassland plant community. The C-selection of dominant strategies increased (R-2 = 0.431, p = 0.004), and the extent of S-selection decreased with greater grazing intensity; however, the R-selection of them only slightly increased under intermediate grazing intensity and finally decreased under high grazing intensity, reflecting a selective grazing disturbance combined with localized enrichment of soil that can provide microsites for the establishment of competitors. The strong C-selected species may dominate the plant community on the eastern Tibetan Plateau in place of S-selected and R-selected species, if the grazing intensity is continually high.
学科主题Environment ; Ecology
URL标识查看原文
WOS关键词FUNCTIONAL TYPES ; SHRUB MEADOW ; SPECIES COMPOSITION ; DIVERSITY ; PRODUCTIVITY ; BIODIVERSITY ; GRASSLANDS ; LIVESTOCK ; TRAITS ; DEGRADATION
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:000444078100015
出版者WILEY
源URL[http://210.75.237.14/handle/351003/30168]  
专题生物多样性与生态系统服务领域_生态研究
生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室
作者单位1.China West Normal Univ, Coll Environm Sci & Engn, Nanchong 637009, Sichuan, Peoples R China;
2.China West Normal Univ, Inst Environm Sci, Nanchong 637009, Sichuan, Peoples R China;
3.CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology,Chinese Academy of Sciences, Chengdu 610041, PR China;
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.China West Normal Univ, Coll Life Sci, Nanchong 637009, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jun,Zhang, Chunyan,Yang, Hao,et al. Plant community ecological strategy assembly response to yak grazing in an alpine meadow on the eastern Tibetan Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(9):2920-2931.
APA Wang, Jun,Zhang, Chunyan,Yang, Hao,Mou, Chengxiang,Mo, Li,&Luo, Peng.(2018).Plant community ecological strategy assembly response to yak grazing in an alpine meadow on the eastern Tibetan Plateau.LAND DEGRADATION & DEVELOPMENT,29(9),2920-2931.
MLA Wang, Jun,et al."Plant community ecological strategy assembly response to yak grazing in an alpine meadow on the eastern Tibetan Plateau".LAND DEGRADATION & DEVELOPMENT 29.9(2018):2920-2931.

入库方式： OAI收割

来源：成都生物研究所

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