【摘要】 讨论连续使用杀虫剂和具有垂直传播的林龄结构病虫害模型,对模型的动力学性态进行了分析,得到模型的基本再生数,讨论了模型无病平衡态的稳定性和病虫害平衡态的不稳定性,分析了病虫害的机理参数对病害流行的影响.更多还原

【Abstract】 This paper discusses an age-structured SIR epidemic model with vertical transmission and continuum,analyses the model’s dynamics property.Then we get the basic reproductive number- threshold and main research into the stability of endemic equilibrium.Finally, we analyses the influence of parameters to epidemic development.更多还原