北京师范大学学报：自然科学版2011，Vol.47Issue(5)：441-447,7.
马铃薯晚疫病传播的数学建模与仿真模拟
MODELING AND NUMERICAL SIMULATING OF POTATO LATE BLIGHT EPIDEMICS
摘要
Abstract
Mixed planting for varied potatoes were examined for control of potato late blight epidemics with mathematical modeling and numerical simulation.The epidemic model of partial differential equations was constructed based on traits of P.infestans,which showed production on the potato plant but spreading by air.Numerical models showed spatial distribution and temporal variation of the epidemic,reflecting phenomena observed in the field.Impact of certain parameters governing epidemic development was examined by sensitivity analysis,parameters such as leaf size,sporangium infection efficiency,maximum radial growth rate of lesion.Certain modes of mixed planting varied potatoes with different parameters were made,such that the inflection processing could be compared numerically among different modes.Data showed that the random mixed planting approach achieved a preferable effect in regard to resistance.关键词
马铃薯晚疫病/不同品种混种方式/偏微分方程模型/时空动态/数值仿真模拟Key words
potato late blight/mixed planting/PDE model/Space-time Dynamic/numerical simulation分类
农业科技引用本文复制引用
杨牧野,李颖,于倩,黄海洋,张辉..马铃薯晚疫病传播的数学建模与仿真模拟[J].北京师范大学学报：自然科学版,2011,47(5):441-447,7.基金项目
国家自然科学基金资助项目 （）
