南川金佛山甑子岩灌丛群落优势种群种间关系研究  

RESEARCH OF THE DOMINANT POPULATIONS AND INTERSPECIFIC RELATIONSHIP OF THE SHRUB COMMUNITIES AT ZENGZIYAN ON MOUNT JINFO

作　　者：汪建华 赵群芬[2] 李旭光[2] 熊好琴[2] 姜文华[2] 

机构地区：[1]涪陵师范高等专科学校生物系,重庆涪陵408003 [2]西南师范大学生命科学学院,重庆400715

出　　处：《西南农业大学学报（自然科学版）》2001年第4期293-296,共4页Journal of Southwest Agricultural University

基　　金：国家自然科学基金资助项目 ( 39570 1 30 )

摘　　要：采用方差比率 (VR)和通过 2× 2列联表进行X2 检验的方法 ,检验了金佛山甑子岩灌丛群落中 9个优势种群的总体相关性和各种对间的关联性 ,并利用Jaccard指数和Spearman相关系数公式测定了种间关联和协变的强度。结果表明 ,除个别种对外 ,大多数种群间的联结性和相关性均不显著 ,总体上趋于独立分布。The overall correlation and interspecific association of 9 dominant species of shrub at Zengziyan of Mount Jinfo, Nanchuan County, were tested, using variance ratio (VR) and X 2-test by 2×2 contingency table. The relative intensity of interspecific association and correlation (covariation) were measured, using Jaccard index formula and Spearman's rank correlation coefficient formula. The results indicated that the interspecific association and correlation were not significant in most pairs of species. The general tendency of their distribution was found to be independent distribution.

关 键 词：植物群落 优势种群 种间关系 灌丛 

分 类 号：Q948.527.1[生物学—植物学] S718.542[农业科学—林学]