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用聚块样方方差分析法、灰色关联度分析法、空间格局聚集强度指数法和ρ指数法对安徽省潜山县茶园茶尺蠖及其8种蜘蛛之间的关系进行分析.结果表明:与茶尺蠖空间上跟随关系密切的天敌是三突花蟹蛛(关联度值为0.856 8)和八点球腹蛛(0.788 8),跟随关系较不密切的天敌是鞍形花蟹蛛(0.631 2)和日本球腹蛛(0.569 8);聚块样方方差分析和聚集强度分析表明,在聚块内有1~32个基本样方时,随着聚块内基本样方数的增多,聚集格局的扩散系数C值不断增大,均匀和随机格局的扩散系数C值不断减小;茶尺蠖及其蜘蛛在聚块基本样方数为2、4、8、16和32时与为1时之间的空间分布聚集程度差异均不显著;茶尺蠖的种群聚集均数λ在多数情况下大于2,聚集是由其本身原因造成的,在种群聚集均数为正值时,随着聚块内基本样方数的增加,种群聚集均数不断增大;用茶尺蠖不同大小聚块的ρ指数判断其聚集时个体群的最小范围表明,茶尺蠖个体群聚集格局的最小面积是聚块中具有1个基本样方,即该文的1.7 m2,这为对该害虫抽样时确定样方大小提供了科学依据.
The relationship between the size and the eight spiders in Chayuan tea garden in Qianshan County of Anhui Province was analyzed by using the method of cluster analysis of variance, gray relational analysis, spatial pattern aggregation intensity index and ρ index method.The results showed that: The natural enemies closely related to the spathera are closely related to each other. The natural enemies of the genus Crabgrass (Corylustaceae) are closely related to each other (0.856 8) ) And Japan (0.569 8). The covariance analysis and aggregation intensity analysis showed that when there are 1 ~ 32 basic quadrats in the polygon block, with the increase of the number of basic quadrats in the block, The value of diffusion coefficient C of the pattern increases continuously, the diffusion coefficient C value of the uniform and random pattern decreases continuously. When the basic quadrats of the cluster are 2, 4, 8, 16 and 32 and 1 There was no significant difference in the spatial distribution between the two groups. The mean λ of population aggregation was greater than 2 in most cases, and the aggregation was caused by its own reason. When the population aggregation mean was positive, The number of basic quadrats increases, and the population aggregation mean increases. With ρ The minimum range of the individuals in the aggregation of the index indicates that the minimum area of the aggregation pattern of the individuals of Chaetomium japonicum is one of the basic quadrats in the polychrome, that is, 1.7 m2 of the article, Provide a scientific basis.