吉林蛟河针阔混交林群落优势种群种间联结性  

Interspecific Correlations among Dominant Tree Species in the Coniferous and Broad-Leaved Mixed Forest Communities in Jiaohe,Jilin Province

作　　者：姜俊[1] 赵秀海[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《林业科学》2011年第12期149-153,共5页Scientia Silvae Sinicae

基　　金：国家林业公益性行业科研专项项目(201004002;200904022)

摘　　要：种间联结性是指不同物种在空间分布上的相互关联性,是植物群落重要的数量和结构特征之一（邓贤兰等,2003）,是群落形成、维持和演替的基础（王文进等,2007）。种间联结能有效量化群落中物种相互作用和物种在环境中的配置情况（周先叶等,2000）,对于正确认识群落的结构组成、功能和群落演替动态具有重要意义,能为森林经营。Based on the 2×2 contingency tables of species presence/absence data collected from a 42 hm2 permanent plot in the coniferous and board-leaved mixed forest in Jiaohe,the VR analysis,χ2-test,Pearson correlation coefficient test and Spearman rank correlation coefficient test were used in quantitative analysis of the interspecific correlations of 18 dominant species.The results indicated that there was a significantly positive correlation of overall association in the broad-leaved mixed forest community,but most species were insignificant positive correlation.The result of χ2-test showed that there was a positive association for 85 species-pairs and a negative association for 65 species-pairs.The Spearman rank correlation coefficient test produced more positive correlation species-pairs than the Pearson correlation coefficient test.The positive associations were presented among overall tree species of the community,which suggested the adaptability of species to similar habitats and the niche overlapped.The interspecific correlations were probably associated with ecological habitats.According to the semi-matrix figure correlation coefficients and the ecological characteristics,the 18 dominant species divided into three ecological species groups.

关 键 词：种间联结 生态位重叠 联结系数检验 生态种组 

分 类 号：S718[农业科学—林学] Q145[生物学—生态学]