KMS Institute of soil and water conservation Chinese Academy of Sciences
| Beta diversity diminishes in a chronosequence of desertification in a desert steppe | |
| 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. | |
| 文章类型 | Article |
| 2018 | |
| 发表期刊 | LAND DEGRADATION & DEVELOPMENT
 |
| ISSN | 1085-3278 |
| 通讯作者邮箱 | shangguan@ms.iswc.ac.cn |
| 卷号 | 29期号:3页码:543-550 |
| 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. |
| 关键词 | Beta-diversity Dispersal Limitation Environmental Filtering Nestedness-resultant Spatial Species Turnover |
| 学科领域 | Environmental Sciences & Ecology ; Agriculture |
| DOI | 10.1002/ldr.2885 |
| 收录类别 | SCI |
| 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 |
| 项目资助者 | 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] |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.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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