摘要
本文考虑到杀虫剂的残留作用、喷洒前后对种群的作用方式的改变以及天敌资源的有限性,首先建立并系统地研究了资源有限下杀虫剂具有残留作用的固定时刻的害虫控制切换系统,分析关键参数对害虫灭绝阈值的影响;其次建立资源有限下依赖于害虫种群数量的状态害虫控制切换系统,通过数值模拟分析在规定的时间内影响杀虫剂的使用频率的因素。
Considering the residual effect of pesticides, the change of the mode of action of the population be-fore and after spraying pesticides and the limitation of natural enemy resources, firstly, a fixed-time pest control switching system with residual effect of pesticides under limited resources is estab-lished and systematically studied, and the influence of key parameters on the pest eradication threshold is analyzed. Secondly, a state pest control switching system that is dependent on the amount of pest populations under limited resources is established, and the factors that affect the frequency of pesticide use in the specified time are analyzed by numerical simulations.
出处
《应用数学进展》
2022年第7期4509-4518,共10页
Advances in Applied Mathematics
