小菜蛾幼虫在春白菜田上的空间分布型研究  

Study on the Spatial Distribution Pattern of Plutella xylostella L in the Spring Chinese Cabbage Field

作　　者：张路生[1] 巴秀成[1] 常慧红[1] 王小梦[1] 

机构地区：[1]滨州市植保站,山东滨州256618

出　　处：《滨州学院学报》2012年第6期40-43,共4页Journal of Binzhou University

摘　　要：研究了春白菜田小菜蛾幼虫空间分布型及其抽样技术.通过频聚集度指数的测定、M*-M回归和Taylor幂法则分析,结果表明,小菜蛾在春白菜上为聚集分布,空间分布的基本成分是个体群,个体间相互吸引,应用Blackith的种群聚集均数检验了聚集的原因.根据Iwao抽样公式,获得了在各种密度下的最适抽样数,建立了序贯抽样模型.The paper deals with the spatial distribution and sampling technique of spring Chinese cab bage Plutella xylostella L. Ag indicates Plutella xylostella L gregation indices and IS in individual colony, and the individual the aggregation s of Plutella xyl the methods of Iwao and Taylor are used. The pattern, the basic element for the distribution ostella L attracts each other,and the individual result is an colonies is also attracted. The theoretical sampling number of Plutella xylostella L in the field, and sequential sampling model is established by Iwao method. The sequency sampling procedure is based on.

关 键 词：小菜蛾 春白菜 空间分布型 

分 类 号：Q968[生物学—昆虫学]