生态学杂志2011，Vol.30Issue(9)：1868-1874,7.
半干旱区锦鸡儿群落优势种种间关系
Interspecific relationships of dominant species in Caragana communities in semi-arid regions of China.
摘要
Abstract
Based on ihe investigation data of 58 quadrats, and by using\ -test and Spearman rank correlation coefficient, this paper studied the interspecific relationships of dominant species in Caragana communities in semi-arid regions of China. Among all the dominant species pairs, most of them had negative correlations, and only a few had significant correlations, which suggested that the Caragana communities were under dynamic succession, and tended to fluctuation or even degradation by external disturbances. Based on the interspecific association and correlation analyses, the 20 dominant species were classified into 3 ecological groups. In the same ecological groups, the members all showed stronger positive association, suggesting their inter-dependent relationships with similar resource utilization and ecological demands. On the contrary, the associations between the ecological groups were loose and scattered, showing a distinct regional differentiation.关键词
锦鸡儿群落/种间关系/x2检验/Spearman秩相关分析Key words
Caragana community/ interspecific relationship/ x2-test/ Spearman rank correlation coefficient.分类
农业科技引用本文复制引用
张震云,周伶,上官铁梁,郭东罡..半干旱区锦鸡儿群落优势种种间关系[J].生态学杂志,2011,30(9):1868-1874,7.基金项目
国家“863”项目(2002AA2241091)资助. （2002AA2241091）
