摘要
应用多种方法测定了樟莹叶甲卵和幼虫的空间格局，结果表明：樟莹叶甲的卵和幼虫符合Neyman分布，分布的基本成份都是稀疏的个体群，幼虫在林内由聚集分布不断扩散为均匀分布．应用Iwao方法，计算了在不同虫口密度下的林间调查的最适抽样数，分析了幼虫的序贯抽样．
Several methods were used to measure the spatial distribution patterns for eggs and larva of Atysa marginata cinnamomi Chen in Fujian province. The results showed that the eggs and larva obeyed Neyman distribution, and which basic component of spatial distribution is loose colony, the aggregated distribution of larva would turn into uniform distribution as a result of diffusing continually. The optimal sampling number was calculated by lwao's method, and the sequential analysis is also analysed.
出处
《福建林学院学报》
CSCD
1997年第1期66-70,共5页
Journal of Fujian College of Forestry
关键词
森林
樟莹叶甲
空间格局
聚集度指标
序贯抽样
Atysa marginata cinnamomi Chen, spatial distribution, aggregation index, regressive model,sequential analysis
