西花蓟马(Frankliniella occidental)在白三叶草上的空间分布  

The spacial distribution pattern of Frankliniella occidentalis on Trifolium repens

作　　者：郑伯平[1] 郑长英[1] 顾松东[1] 王俊平[1] 

机构地区：[1]青岛农业大学农学与植物保护学院,山东青岛266109

出　　处：《青岛农业大学学报（自然科学版）》2011年第1期47-49,54,共4页Journal of Qingdao Agricultural University(Natural Science)

基　　金：国家公益行业项目(200803025)

摘　　要：利用5种聚集度指标和线性回归方程对西花蓟马在白三叶草上的空间分布型进行研究。结果表明:西花蓟马在白三叶草上的空间分布型为聚集分布,其分布的基本成分是个体群,个体间相互吸引,这种聚集主要由环境引起。运用Iwao的m*-m直线回归方程建立了理论抽样数模型,田间理论抽样数可用N=1/D2(1.3533/m+1.964)进行估计。The spacial distribution pattern of Frankliniella occidental on Trifolium repens were examined by five aggregation indices and linear regression analysis,the results show that the spacial distribution pattern of Frankliniella occidentalis on Trifolium repens is Aggregated distribution,the basic ingredients is individual population,the individual attracted each other,the aggregation was caused by the environmental factor.A Theoretical sampling model was built by Iwao＇s way（regressive relation by m＊-m）,theoretical sampling numbers of field survey can be estimated with N=1/D2（1.3533/m＋1.964）.

关 键 词：西花蓟马 空间分布型 白三叶草 

分 类 号：S433.89[农业科学—农业昆虫与害虫防治]