摘要
再生稻二化螟幼虫的空间分布型为负二项分布和聚集分布，其Ｉｗａｏ的线性回归方程为ｍ＊＝０．００９９＋２．４７５３ｍ，属负二项分布。根据聚集均数（λ）测定结果，分析了聚集原因。在分布型研究的基础上，探讨了资料代换模式、Ｋｕｎｏ＇ｓ种群序贯抽样模型和最适抽样数模型。
The spatial distribution pattern of the larvae of Chilo suppressalis in regenerationrice fields was analysed. The results showed that the spatial distribution of Chilo suppressalis fit into the negative binomial distribution and the aggregation distribution, The linearregression equation of m 一m was m= 0.0099+2.4753m, The reason for the aggregationwas analysed according to estimation by mean aggregation(λ).The model of dataconversion,Kuno s model of the population sequential sampling and the theoritical samplingnumber model were also described in the paper.
出处
《华东昆虫学报》
1995年第1期51-55,共5页
Entomological Journal of East China
关键词
再生稻
二化螟
幼虫
空间分布型
抽样技术
Chilo suppressalis,spatial distribution pattern,sampling technique.
