昆虫种群复合空间分布型的研究  

Study on the Compound Spatial Distribution Patterns of Insect Population

作　　者：周国法[1] 

机构地区：[1]北京大学分校,副教授100083

出　　处：《林业科学研究》1997年第1期24-28,共5页Forest Research

摘　　要：本文提出了昆虫种群空间分布型间复合的三种可能途径:简单转化和两类复合;对这些分布的研究可以更清楚地解释种群空间分布格局的形成和机理。文中提出的判定复合分布型的方法包括:扩散系效法,空间相关法和改参数法;它们分别用于判定分布的聚集与否,聚集的范围和具体的分布型。对马尾松毛虫幼虫分布的研究表明,本文的模型和方法可以提供许多传统分布方法无法得到的关于分布型形成机理的信息。Three types of compound spatial distribution patterns of insect population were proposed in this paper:simple transformation, first type and second type compound spa- tial patterns. Three kind of analysis methods,index of dispersion, spatial autocorrelation and variation of distribution parameters, were used to describe the type of spatial pattern, the range of aggregation, and the spatial distribution, respectively. The spatial pattern of pine caterpillar was used as an application example,and the result indicated that using the above method much more information about spatial patterns conld be obtained than using the clas- sical spatial pattern index method.

关 键 词：森林昆虫 种群 复合分布 空间相关 

分 类 号：S718.7[农业科学—林学]