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应用生态学报 ›› 1992, Vol. 3 ›› Issue (3): 247-252.

• 研究论文 • 上一篇    下一篇

亚洲玉米螟多元动态经济阈值模拟模型

邝幸泉, 毕成鹏, 魏明新   

  1. 华中农业大学, 武汉 430070
  • 收稿日期:1990-11-19 修回日期:1991-05-14 出版日期:1992-07-25 发布日期:1992-07-25
  • 基金资助:

    国家自然科学基金

Simulation model of multivariate dynamic economic threshold of Asian corn borer

Kuang Xingquan, Bi Chengpeng, Wei Mingxin   

  1. Central China Agricultural University, Wuhan 430070
  • Received:1990-11-19 Revised:1991-05-14 Online:1992-07-25 Published:1992-07-25

摘要: 1985-1989年在武昌研究了亚洲玉米螟种群动态及玉米受害后产量损失,组建了用于玉米螟预测和防治的多元动态经济阈值模型。模型在计算机上显示全部过程,模拟模型经过生产实际检验,效果良好。

关键词: 亚洲玉米螟, 多元动态经济阈值, 模拟模型

Abstract: The population dynamics of Asian corn borer(ACB) Ostrinia furnicalis and the yield loss caused by it were studied in Wuchang in 1985-1989. Ageneral model for its multivariate dynamic economic threshold is established as ETi(t)= Ki(P1,P2,…,Pn)/[1+exp(a-b×t)]^2×[1+exp(a-b×X)] ×exp(a-b×t) Where Xis the interval from emergence of first eggmass to sampling date, t denotes time, and a and b are Logistic parameters which are varied with defferent ACBgenerations. The value of Ki(p1,p2,...,pn) is determined by state i, which is described with a property serial value Pj(j=1,2,...,n) named state index. The model is programmed through IBM PC/ATmicrocomputer and validated in corn production.

Key words: Asian corn borer, Simulation model, Multivariate dynamic economic threshold