摘要
基于2×2联列表,应用方差比率法、χ2检验、Pearson相关系数及Spearman秩相关系数检验等数量分析方法对山西太岳山接骨木生存群落进行种间关联性分析。总体关联性分析表明,接骨木生存群落优势种群间总体上无关联,种的分布相对独立;χ2结果表明,太岳山35个优势种,595个种对中,有239对表现为正关联,349对表现为负关联,正负关联比为0.68;Pearson相关系数检验中,正关联174对,负关联421对,正负关联比为0.41;Spearman秩相关系数检验中,正关联218对,负关联377对,正负关联比为0.58。595个种对中,绝大多数种对的联结关系未达到显著水平,说明太岳山接骨木群落具有明显的次生性。根据这35个优势种群对环境的适应方式和主导生态因素辅助以DCA排序,可将它们划分为3种生态种组。
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.
出处
《生态学杂志》
CAS
CSCD
北大核心
2015年第5期1313-1319,共7页
Chinese Journal of Ecology
基金
山西省青年科技研究基金项目(2013021030-3)
山西师范大学校科学研究基金项目(ZR1218)
山西师范大学生命学院科学研究基金项目(SMYKZ-19)资助
关键词
太岳山
接骨木群落
种间关系
生态种组
Taiyue Mountain
Sambucus williamsii community
interspecific relationship
ecological species group.
作者简介
通讯作者E-mail：sxrcbi@126．com
