• 研究报告 •

### 山西太岳山接骨木群落优势种种间关联性分析

1. （山西师范大学生命科学学院， 山西临汾 041004）
• 出版日期:2015-05-10 发布日期:2015-05-10

### Interspecific association analysis of dominant species in Sambucus williamsii community in Taiyue Mountain of Shanxi Province.

CAO Jing, BAI Yu-hong, ZHANG Qin-di, BI Run-cheng**

1. (College of Life Science, Shanxi Normal University, Lifen 041004, Shanxi, China)
• Online:2015-05-10 Published:2015-05-10

Abstract: Based on 2×2 contingency table, and by using quantitative analysis methods, this paper studied the interspecific relationships amongst 595 species pairs of the 35 dominant woody species of Sambucus williamsii community in Taiyue Mountain Nature Reserve. Variance analysis showed that the interspecific correlation of the 35 dominant populations was not significant, and that the distribution of the species was relatively independent. The χ2 test showed that amongst the 595 species pairs, 239 pairs were positively correlated, while 349 pairs were negatively correlated, and the correlation ratio was 0.68. Pearson’s correlation coefficient test showed that 174 pairs were positively correlated, while 421 pairs were negatively correlated, and the correlation ratio was 0.41. Spearman’s rank correlation coefficient test showed that 218 pairs were positively correlated, 377 pairs were negatively correlated, and the correlation ratio was 0.58. Compared to the χ2 test, the Pearson’s correlation coefficient and Spearman’s rank correlation coefficient tests had higher sensitivity. For vast majority of the 595 species pairs, their interspecific relationships did not reach significant levels, indicating that the S. williamsii community in Wulu Mountain Nature Reserve was of obviously secondary succession. Based on the ways of adaptation to the environment and the leading ecological factors, and facilitated by principal components analysis, the 35 dominant populations were divided into three ecological species groups.