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本文采用7种聚集度指标法测定了檫角丽细蛾卵和幼虫的空间分布型。结果表明卵和幼虫在檫树人工林内都呈聚集分布。幼虫分布的基本成份是个体群,个体间相互排斥。卵分布基本成份是疏松的个体群。应用Iwao’s方法,分析并计算林间调查的最适抽样数,进行了幼虫序贯抽样的计算。
In this paper, seven kinds of aggregation index method was used to determine the spatial distribution patterns of eggs and larvae of Apatura capensis. The results showed that egg and larvae all clustered in the sapling plantation. The basic components of larval distribution of individual groups, individuals mutually exclusive. The basic component of egg distribution is loose individual groups. The Iwao’s method was used to analyze and calculate the optimal number of inter-forest surveys and calculate larvae’s sequential sampling.