Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.ecolind.2021.108382 |
Seed bank persistence of artificial vegetation under stochastic shock in desert regions | |
Fu, Tonglin; Li, Xinrong; Jia, Rongliang | |
通讯作者 | Li, XR (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China. |
来源期刊 | ECOLOGICAL INDICATORS |
ISSN | 1470-160X |
EISSN | 1872-7034 |
出版年 | 2021 |
卷号 | 133 |
英文摘要 | Seed bank persistence plays a significant role in maintaining the sustainability of artificial vegetation in desert regions. However, the periods of droughts after each rainfall event form a series of stochastic shocks and result in depletion of the seed bank. Understanding seed bank persistence under stochastic shocks is a crucial prerequisite to evaluation of the sustainability of artificial vegetation under ongoing drought, but few studies have addressed the response of soil seed bank persistence to frequent stochastic shocks in deserts. In this paper, a stochastic shock model describing the input-output process of the seed bank is proposed based on modern risk theory to explore seed bank persistence of artificial vegetation in desert regions. The existence condition of the seed bank and the lower bound of the probability of seed bank persistence under stochastic shock after a long time were theoretically determined. As a verification of the theoretical model, seed bank persistence of artificial sand-binding vegetation on the southeastern margin of the Tengger Desert in China was investigated based on field observation and experimental and empirical data. The numerical results reveal that the seed bank of artificial sand-binding vegetation will always exist under stochastic shocks with a probability greater than 95%, suggesting that in the long-term succession process the current artificial sand-binding vegetation will likely maintain the development trend toward the adjacent natural vegetation. |
英文关键词 | Persistence Seed bank Stochastic shock Desert ecosystems Stochastic shock model Tengger Desert |
类型 | Article |
语种 | 英语 |
开放获取类型 | gold |
收录类别 | SCI-E |
WOS记录号 | WOS:000730169000003 |
WOS关键词 | BIOLOGICAL SOIL CRUSTS ; GERMINATION |
WOS类目 | Biodiversity Conservation ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/373991 |
作者单位 | [Fu, Tonglin; Li, Xinrong; Jia, Rongliang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China; [Fu, Tonglin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Fu, Tonglin] Longdong Univ, Sch Math & Stat, Qingyang 745000, Peoples R China |
推荐引用方式 GB/T 7714 | Fu, Tonglin,Li, Xinrong,Jia, Rongliang. Seed bank persistence of artificial vegetation under stochastic shock in desert regions[J],2021,133. |
APA | Fu, Tonglin,Li, Xinrong,&Jia, Rongliang.(2021).Seed bank persistence of artificial vegetation under stochastic shock in desert regions.ECOLOGICAL INDICATORS,133. |
MLA | Fu, Tonglin,et al."Seed bank persistence of artificial vegetation under stochastic shock in desert regions".ECOLOGICAL INDICATORS 133(2021). |
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