杉木球果麦蛾空间分布型的研究  

A STUDY ON THE SPATIAL DISTRIBUTION PATTERNS OF DICHOMERIS SP

作　　者：薛贤清[1] 钱范俊[1] 余荣卓[1] 张福寿 刘永福 

机构地区：[1]南京林业大学,福建省洋口林场,福建省林业厅种苗总站,上海市林业站,南京林业大学森林资源与环境学院

出　　处：《南京林业大学学报（自然科学版）》1994年第2期19-24,共6页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：林业部"杉木种子园主要害虫种群监测与综合治理技术的研究"科研项目

摘　　要：用比较频次法、聚集度指标法、ｌｗａｏ与Ｔａｙｌｏｒ的回归分析法，在国内首次对杉木球果麦蛾幼虫和蛹的空间分布型进行研究。结果表明幼虫和蛹均为聚集分布。并用Ｂｌａｋｉｔｈ提出的＂聚集均数＂法对聚集原因分析表明，幼虫和蛹的聚集均与其栖境有直接关系。生物学特性的作用只能通过种群密度的变化表现出来。The present paper deals with the spatial distribution patterns of Dichomer sp. in the seeds yard of cunninghamia lanceolta. Frequency check methods、regression analysis and several aggregation indices were used to determine the spatial distribution patterns. All larval and pupa were of aggregated patterns. Also, the 'aggregation average' method by Blackith was used to analyse the aggregated reasons of larval and pupa. All larval and pupa were related to their environment; but the function of biological characters only occured with the changing of POPulation density.

关 键 词：杉木 球果麦蛾 空间分布型 

分 类 号：S763.420.3[农业科学—森林保护学]