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应用生态学报 ›› 2003, Vol. ›› Issue (8): 1359-1362.

• 研究论文 • 上一篇    下一篇

褐飞虱发生系统的混沌诊断

许晓风1, 马飞2, 邹运鼎3, 程遐年2   

  1. 1. 南京师范大学生命科学学院, 南京 210097;
    2. 南京农业大学农业部病虫监测与治理重点开放实验室, 南京 210095;
    3. 安徽农业大学, 合肥 230036
  • 收稿日期:2001-03-22 修回日期:2001-06-13
  • 通讯作者: 许晓风,男,1959年生,博士,教授,主要从事昆虫学研究.E-mail:xxf@jlonline.com.
  • 基金资助:
    国家重点基础研究发展规划项目(G20000016210);“948”资助项目(201065)

Chaotic diagnosis of Nilaparvata lugens occurrence system

XU Xiaofeng1, MA Fei2, ZOU Yunding3, CHENG Xianian2   

  1. 1. Life School of Nanjing Normal University, Nanjing 210097, China;
    2. Key Laboratory of Monitoring and Management of Plant Disease and Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China;
    3. Anhui Agricultural University, Hefei 230036, China
  • Received:2001-03-22 Revised:2001-06-13

摘要: 褐飞虱在我国常年发生面积约为1.3×107~2×107hm2,年均损失稻谷10×108kg.为更深入地研究褐飞虱发生系统的特性与规律,并为预测和防治提供理论依据,以我国长江流域太湖地区1986~1998年6~11月褐飞虱田间发生时间序列资料为例,运用混沌理论中的自相关函数、功率谱图、相轨迹图、Poincare截面、返回映象图等方法,研究了褐飞虱发生系统的特性.结果表明,即使有随机性噪声的影响,仍可判明我国长江流域褐飞虱发生系统具有混沌特性.

关键词: 褐飞虱, 混, 沌, 功率谱图, 返回映象, 自相关函数, Poincare截面, 相轨迹图

Abstract: It is estimated that there are nearly 20 million hectares of rice crop being infested by Nilaparvata lugens, with an annual loss of some half a million tones of grain. In order to study the properties and laws of Nilaparvata lugens occurrence system further, the time series data of Nilaparvata lugens occurrence from 1986 to 1998 collected in Taihu Lake District were analyzed by using the methods of autocorrelation function, power spectrum figure, phase trajectory figure, poincare section, and return map of chaos theory. The results indicated that Nilaparvata lugens occurrence system in Yangtze River valley area in China had an obvious chaotic property, even though there was some interference of random noises.

Key words: Nilaparvata lugens, Chaos, Power spectrum figure, Return map, Autocorrelation function, Poincare section, Phase trajectory figure

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