气候变化领域集成服务门户(CCPortal): Seed bank persistence of artificial vegetation under stochastic shock in desert regions

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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 (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1470-160X
EISSN	1872-7034
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.
关键词	BIOLOGICAL SOIL CRUSTS GERMINATION
英文关键词	Persistence; Seed bank; Stochastic shock; Desert ecosystems; Stochastic shock model; Tengger Desert
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000730169000003
来源期刊	ECOLOGICAL INDICATORS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254340
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]. 中国科学院西北生态环境资源研究院,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).