干旱区生态环境知识资源中心(Arid): 毛乌素沙地东缘黑沙蒿群落种间联结性分析

Arid

	毛乌素沙地东缘黑沙蒿群落种间联结性分析
其他题名	Interspecific association analysis of Artemisia ordosica community in eastern edge of Mu Us sandy land
	岳鹏鹏 1; 周静静 2; 王华 2
来源期刊	生态科学
ISSN	1008-8873
出版年	2017
卷号	36 期号:6 页码:147-152
中文摘要	种间联结是生态群落的重要特征之一,对研究群落物种格局的形成,种群进化和群落演替动态具有重要意义。基于方差比率(VR)、chi~2检验和点相关系数psi,对毛乌素沙地东缘黑沙蒿群落13个主要种的种间联结性进行了分析。结果表明: (1)毛乌素沙地东缘黑沙蒿群落总体种间关联性为显著正相关。(2)chi~2检验显示有40对正相关种对, 37对负相关种对, 1对不相关种对,不显著种对占84.61%。(3)点相关系数psi与chi~2检验所得结果相似,主要种对间多为不显著正相关关系。(4)根据种间联结性的分析结果,可将黑沙蒿群落分为两个不同的生态种组,且两个生态种组间具有一定排斥关系。总之,在沙漠边缘取样条件下毛乌素沙地东缘黑沙蒿群落仅少数种对间表现出强依赖性,多数物种间未形成一种稳定、协调的搭配关系,群落处于演替动态过程中。
英文摘要	Interspecific association is one of the most important characteristics of ecological communities, which is of great significance to explore the formation of community pattern, population evolution and community succession dynamics. Based on variance ratio, chi~2-test, and point correlation coefficient psi, the interspecific association of 13 principal species of Artemisia ordosica community in eastern edge of Mu Us sandy land was studied. The results showed are as follows. (1)The multi-interspecific associations of Artemisia ordosica community on the eastern edge of Mu Us sandy land were significantly positive. (2) There were 40 positive related pair-species, 37 negative related pair-species, and 1 unrelated pair-species; and 84.61% pair-species were not significant based on chi~2-test. (3) The results of point correlation coefficient psi were similar to chi~2-test, showing most of them were not remarkably positive interspecific associations. (4) According to the analysis of interspecific association, the communities of Artemisia ordosica could be divided into two different ecological groups, with a certain exclusion relationship. In conclusion, under the condition of desert edge sampling, there were only a few species of Artemisia ordosica communities in the eastern edge of Mu Us sandy land showing strong dependence, while most of the species did not form a stable and harmonious collocation relationship. Thus, the community is in the process of successional dynamics.
中文关键词	种间联结 ; 毛乌素沙地 ; 黑沙蒿群落
英文关键词	Interspecific association Mu Us sandy land Artemisia ordosica community
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6145025
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236427
作者单位	1.桂林医学院生物技术学院, 桂林, 广西 541000, 中国; 2.榆林学院生命科学学院, 榆林, 陕西 719000, 中国
推荐引用方式 GB/T 7714	岳鹏鹏,周静静,王华. 毛乌素沙地东缘黑沙蒿群落种间联结性分析[J],2017,36(6):147-152.
APA	岳鹏鹏,周静静,&王华.(2017).毛乌素沙地东缘黑沙蒿群落种间联结性分析.生态科学,36(6),147-152.
MLA	岳鹏鹏,et al."毛乌素沙地东缘黑沙蒿群落种间联结性分析".生态科学 36.6(2017):147-152.