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.
出处
《西北林学院学报》
CSCD
北大核心
2000年第4期50-56,共7页
Journal of Northwest Forestry University
关键词
二齿茎长蠹
幼虫
空间分布
序贯抽样
Sinoxylon japonicum
larva
spatial distribution pattern
sequential sampling
