稻纵卷叶螟迁入数量时间序列的混沌诊断

Chaos Diagnosis on Rice Leaf Roller Immigration Numbers

稻纵卷叶螟是一种重要的迁飞性水稻害虫，为更好地进行预测控制，研究清楚其迁入行为的动力学结构则对预报建模意义重大．本文利用从时间序列提取吸引关联维来确定系统性质的方法，对全国十个测报站的稻纵卷叶螟迁入数量的时间序列进行了关联维的计算，结果表明，这一迁飞行为是随机的．

Rice leaf roller is a typing migration pest insect. It is important to study the dynamical structure of rice leaf roller migration in order to predict its behavior. Based on the method of extracting the relation dimension from time series, these relation dimensions of rice leaf roller immigration numbers from JO plant protection stations have been computed. the result shows that the behavior of rice leaf roller immigration is stochastic.