干旱区生态环境知识资源中心(Arid): Community Stability Was Maintained by Divergent Mechanisms in Arid Desert Ecosystem

Arid

DOI	10.1016/j.rama.2019.05.003
	Community Stability Was Maintained by Divergent Mechanisms in Arid Desert Ecosystem
	He, Wenliang 1; Wang, Lilong 1; Wang, Liang 2; An, Lizhe 1; Xu, Shijian 1
通讯作者	Xu, Shijian
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2019
卷号	72 期号:5 页码:742-748
英文摘要	More attention has been paid to the effects of diversity and dominance on community temporal stability rather than spatial stability in the main biome globally. Moreover, the maintenance mechanisms underlying the stability patterns of plant communities dominated by different plants in the Gobi Desert remain unknown. This article addresses the maintenance mechanism of plant community stability dominated by different plants in the Gobi Desert northwest of China. Four communities dominated by Sympegma regelii, Reaumuria songarica, Nitraria sphaerocarpa, and Gymnocarpos przewalskii, respectively, were selected in the national nature reserve, and a total of 240 quadrats, 20 x 20 m each, were established in the four communities. The correlations among species richness, species evenness, species diversity, community stability, and the biomass of dominant species were analyzed by linear regression model and structural equation model. The dominant species determined positively and directly the stability of the N. sphaerocarpa community, while diversity acted negatively in the maintenance of G. przewalskii community stability. However, species richness contributed mainly and positively to the maintenance of stability in the S. regelii community. Direct and negative effect of species richness and positive function of diversity were found in the maintenance of stability in the R. songarica community. Taken together, community stability is maintained by the divergent mechanisms in arid environment, which depends on the dominant species and diversity. The study could provide reference for the management of communities in the arid desert regions. (C) 2019 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
英文关键词	community stability desert diversity richness structural equation model
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000486947000003
WOS关键词	PLANT-SPECIES RICHNESS ; DIVERSITY ; BIODIVERSITY ; PRODUCTIVITY ; BIOMASS ; VEGETATION ; PRECIPITATION ; CONSEQUENCES ; SUCCESSION ; DYNAMICS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218306
作者单位	1.Lanzhou Univ, Sch Life Sci, MOE Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Gansu, Peoples R China; 2.Adm Anxi Extra Arid Desert Natl Nat Reserve, Jiuquan 736100, Gansu, Peoples R China
推荐引用方式 GB/T 7714	He, Wenliang,Wang, Lilong,Wang, Liang,et al. Community Stability Was Maintained by Divergent Mechanisms in Arid Desert Ecosystem[J]. 兰州大学,2019,72(5):742-748.
APA	He, Wenliang,Wang, Lilong,Wang, Liang,An, Lizhe,&Xu, Shijian.(2019).Community Stability Was Maintained by Divergent Mechanisms in Arid Desert Ecosystem.RANGELAND ECOLOGY & MANAGEMENT,72(5),742-748.
MLA	He, Wenliang,et al."Community Stability Was Maintained by Divergent Mechanisms in Arid Desert Ecosystem".RANGELAND ECOLOGY & MANAGEMENT 72.5(2019):742-748.