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二代棉铃虫种群动态的地统计学分析

刘庆年1;刘俊展1;刘京涛1;张路生1;李建庆2   

  1. 1山东省滨州市植保站, 山东滨州 256618;
    2滨州学院, 山东滨州 256603
  • 收稿日期:2006-04-25 修回日期:1900-01-01 出版日期:2007-03-15 发布日期:2007-03-15

Geostatistic analysis on population dynamics of second generation cotton bollworm

LIU Qing-nian1; LIU Jun-zhan1; LIU Jing-tao1; ZHANG Lu-sheng1; LI Jian-qing2   

  1. 1Binzhou Plant Protection Station, Binzhou 256618, Shandong, China;
    2Binzhou College, Binzhou 256603, Shandong, China
  • Received:2006-04-25 Revised:1900-01-01 Online:2007-03-15 Published:2007-03-15

摘要: 运用地统计学方法,分析了山东省滨州地区二代棉铃虫在1965—2004年间种群动态的时间序列结构特征和自相关性,根据决定系数R2和Akaike’s Information Criteria(AIC)判别参数,筛选出最优拟合模型。结果表明:棉铃虫越冬蛹量、二代棉铃虫百株累计卵量、发生程度的最优拟合模型均是球形模型,呈聚集分布;三者的变程分别为10.41、12和12.06年,高度一致;三者在时间序列上的自相关性分别是53.22%、52.62%和69.06%;三者的结构特征引起的种群变异介于25%~75%,为中等程度的空间自相关性,其相关强度顺序是百株累计卵量<越冬蛹量<发生程度,随机部分引起的空间变异则相反。

Abstract: By the methods of geostatistics, this paper analyzed the temporal structural characters and autocorrelations of the population dynamics of second generation cotton bollworm (Helicoverpa armigera) in Binzou City of Shandong Province in 1965—2004. Optimal simulation models were selected based on the decision coefficient R2 and Akaike’s Information Criteria (AIC). The results showed that the optimal simulation models of the amount of overwintering pupae(Ⅰ), accumulated amount of eggs on 100 cotton plants (Ⅱ), and occurrence degree (Ⅲ) of second generation H. armigera were all of spherical. These three indices had an aggregative distribution, and their change ranges were 10.41, 12 and 12.06 years, respectively, with a high accordance. The temporal autocorrelations of the three indices were 53.22%, 52.62% and 69.06%, respectively, and the population variance resulted from the structural characters of the indices ranged from 25% to 75%, being a medium degree of spatial autocorrelation with the sequence of Ⅱ<Ⅰ<Ⅲ, while the spatial variance resulted from the random parts ranked in adverse.

Key words: Liposcelis bostrychophila, Fumigation, DDVP, Lethal reaction