首都师范大学学报（自然科学版）2011，Vol.32Issue(3)：34-40,7.
妫河下游消落带植物群落优势种种间关系研究
Study on Inter-specific Relationships of the Dominant Plant Populations in Downstream Water-level-fluctuating Zone of Gui River
摘要
Abstract
By using x2-test for contingency table and Spearman's rank correlation coefficient, inter-specific correlation of dominant species in downstream Water-level-fluctuating zone of Gui River were studied. Inter-specific correlation of a total of 22 dominant species and 231 species pairs were investigated. The results indicated that 41 species pairs showed significant or extremely significant positive correlation and 5 species pairs showed significant or extremely significant negative correlation in x2-test, while 57 species pairs showed significant or extremely significant positive correlation and 13 species pairs showed significant or extremely significant negative correlation in Spearman' s rank test. This indicated that most species were not closely related with each other. The Spearman' s rank correlation coefficient test was more sensitive than x2-test in showing the associations of the species. According to the adaptability to the environment and the relationships between plants and environment, 22 species were divided into 3 ecological species groups, that is hydrophytes ecological group, hygrophytes ecological group, and mesophytes ecological group.关键词
妫河/消落带/植物群落/种间关联/种间相关/生态种组Key words
Gui river/ water-level-fluctuating zone/ plant community/ inter-specific association/ inter-specific correlation/ ecological group.分类
农业科技引用本文复制引用
刘成立,胡东,栾姗姗,孙美华..妫河下游消落带植物群落优势种种间关系研究[J].首都师范大学学报（自然科学版）,2011,32(3):34-40,7.基金项目
北京市重大科技计划项目(D08040600580803)资助. （D08040600580803）
