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应用生态学报 ›› 1991, Vol. 2 ›› Issue (2): 141-145.

• 研究论文 • 上一篇    下一篇

我国东半部褐飞虱、稻纵卷叶螟迁飞发生区及其分布的数学模型

邹运鼎   

  1. 安徽农学院, 合肥 230036
  • 收稿日期:1990-05-04 出版日期:1991-04-25 发布日期:1991-04-25

Mathematical models for occured areas of emigration of Nilaparvata lugens and Cnaphalocrocis medinalis and their distribution in Eastern China

Zou Yunding   

  1. Anhui Agricultural College, Hefei 230036
  • Received:1990-05-04 Online:1991-04-25 Published:1991-04-25

摘要: 本文分析了我国东半部褐飞虱、稻纵卷叶螟迁飞动态与正午时太阳高度角的关系。根据正午时太阳高度角公式计算出两虫迁飞发生区正午时的太阳高度角,与T值间进行数学分析建立迁飞发生区预测模型,并可进行预报。

关键词: 太阳高度角, 迁飞, 数学模型, 褐飞虱, 稻纵卷叶螟

Abstract: The relationship between emigration activities of brown planthopper (Nilaparvata lugens Stal) and rice leaf roller (Cnaphalocrocis medinalis Guenée) and solar height angles is analysed Models of occured areas of emigration and their distribution are developed. Solar height angles at occured areas of emigration of two species can be evaluated by solar height angle formula at noon: hθ=90°-φ+σθ……. Regression analyses are made on T's and solar height angles, and the predictive models are developed.

Key words: Solar height angle, Emigration, Mathematical model, Nilaparvata lugens, Cnaphalocrocis medinalis