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Beta diversity diminishes in a chronosequence of desertification in a desert steppe

文献类型：期刊论文

作者Zhuangsheng Tang1; Hui An2; Guangyu Zhu1; Zhouping Shangguan1; Shangguan, ZP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2018
卷号29期号:3页码:543-550
关键词Beta-diversity Dispersal Limitation Environmental Filtering Nestedness-resultant Spatial Species Turnover
ISSN号1085-3278
DOI10.1002/ldr.2885
文献子类Article
英文摘要Biodiversity is a central and multifaceted concept of community ecology, but a major challenge remains in understanding the variation mechanisms of biodiversity. Two ecological phenomena are shown in beta diversity: (a) spatial species turnover in space and (b) nestedness-resultant of assemblages. Using a field experiment focusing on a desert steppe ecosystem, we show that desertification influences those two components in divergent ways depending on whether a deterministic or stochastic process is driving community composition. Desertification was a major driver of local environmental heterogeneity, which also resulted in decreased soil nutrients and led to increased turnover in a heterogeneous environment; however, spatial turnover of species decreased with desertification intensify. Desertification decreases resource availability, which causes species loss and reduced total beta diversity. Those desertification effects, therefore, had a homogenizing effect on the community. However, stochastic processes cannot be disregarded as a factor in community composition determination. Overall, these results indicated that the study of desertification effects on beta diversity would add our knowledge of the deterministic and stochastic processes that create and maintain biodiversity. This is crucial to assess the relative importance between stochastic processes and deterministic processes.
学科主题Environmental Sciences & Ecology ; Agriculture
出版地111 RIVER ST, HOBOKEN 07030-5774, NJ USA
语种英语
WOS记录号WOS:000428447600014
出版者WILEY
资助机构National Key Research and Development Program of China [2016YFC0501605] ; National Key Research and Development Program of China [2016YFC0501605] ; National Natural Science Foundation of China [41390463] ; National Natural Science Foundation of China [41390463] ; National Key Research and Development Program of China [2016YFC0501605] ; National Key Research and Development Program of China [2016YFC0501605] ; National Natural Science Foundation of China [41390463] ; National Natural Science Foundation of China [41390463]
源URL[http://ir.iswc.ac.cn/handle/361005/8285]  
专题水保所科研产出--SCI_2018--SCI
通讯作者Shangguan, ZP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Ningxia Univ, United Ctr Ecol Res & Bioresource Exploitat Weste, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Minist Educ, Yinchuan 750021, Peoples R China
推荐引用方式
GB/T 7714		 Zhuangsheng Tang,Hui An,Guangyu Zhu,et al. Beta diversity diminishes in a chronosequence of desertification in a desert steppe[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(3):543-550.
APA Zhuangsheng Tang,Hui An,Guangyu Zhu,Zhouping Shangguan,&Shangguan, ZP .(2018).Beta diversity diminishes in a chronosequence of desertification in a desert steppe.LAND DEGRADATION & DEVELOPMENT,29(3),543-550.
MLA Zhuangsheng Tang,et al."Beta diversity diminishes in a chronosequence of desertification in a desert steppe".LAND DEGRADATION & DEVELOPMENT 29.3(2018):543-550.

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来源：水土保持研究所

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