牛姆林区青钱柳群落的主要种群种间关联特征

通过一系列种间关联测定技术 (方差比率 ( VR)法检验多物种间总体相关性、χ2 检验各种对间的联结性、关联指数测度各种对间的关联程度 )对青钱柳群落的 1 2个主要乔木种群的 1 2个主要种群的种间关联分别进行检验与测度 ,结果表明 :青钱柳群落的 1 2个主要乔木种群间在总体上表现出无关联 ,各种对间的联结性不显著 ,关联程度也较低 ,各自趋于独立出现 ,这种“松散”状况可能与该群落处于过熟发展阶段有关

Studies on the Inter-specific Association among Main Species of Cyclocarya paliurus Community in Niumulin Natural Reserve

A series of techniques including method of variance ratio f or checking the overall association of all species,χ2-test for describing th e property of the inter-specific association,and incidence indices for showing relationship degree of the inter-specific association,were used to determine an d measure the inter-specific association among 12 dominant species in Cyclocarya paliurus community.The results indicated that the over all association among 12 dominant species in Cyclocarya paliurus community were irrelevant, the quality of each species-pair association was not significant, the incidence degree of species-pair were lower,and each species trended to appear separately.This loose circumstance may be related to the community stage with over-mature developing.