二齿茎长蠹幼虫的空间分布及应用研究  

The Spatial Distribution and Applying Study of the Larva of Sinoxylon japonicum

作　　者：刘满堂[1] 廖晓刚[1] 鱼晓 

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100

出　　处：《西北林学院学报》2000年第4期50-56,共7页Journal of Northwest Forestry University

摘　　要：采用多种聚集度指标测定二齿茎长蠹幼虫的空间分布为聚集分布 ,经多次适合性频次检验 ,分布的状态呈现负二项分布。并探讨了最适抽样数在资料代换及序贯抽样中的应用。It was concluded that the spatial distribution pattern of the larve of Sinoxylon japonicum was an aggregative one after applying several aggregation level index methods; the state of distribution is a negative binomial one after chi square examination. The applications of best fit sampling in data substitution and sequential sampling were dircursed.

关 键 词：二齿茎长蠹 幼虫 空间分布 序贯抽样 

分 类 号：S763.380.3[农业科学—森林保护学]