摘要
采用聚集度指标方法,对栗瘿蜂虫瘿在锥栗林中的空间格局进行测定。结果表明,栗瘿蜂虫瘿在锥栗林中为聚集分布,分布的基本成分是个体群。同时分析了其聚集原因,计算了林间调查的最适抽样数,列出了序贯抽样分析表,为林间抽样调查及防治提供了依据。
This article adopted the crowding level index method to determine the spatial distribution patternsof Dryocosmus kuriphilus galls in the forest of Castanea henryi.The results indicated that the distribution wasa crowding one and the basic component of the distribution was individual colony.Meanwhile the crowdingreasons were analyzed,the optimal sampling number of forest survey was calculater and the sequential sam-pling analysis table was listed,which provided a basis for the forest sampling survey and control.
出处
《福建林业科技》
1996年第1期12-15,共4页
Journal of Fujian Forestry Science and Technology
关键词
栗瘿蜂
虫瘿
空间格局
序贯抽样
Dryocosmus kuriphilus;gall;spatial distribution pattern
sequential sampling