对《小容量污染环境中二维Volterra互惠系统的β-生存和β-灭绝》的再分析

Analysis on β-persistence and β-extinction of 2-D Volterra Cooperative System in Small Capacity and Polluted Environment

利用比较原理和积分均值等方法,在污染环境容量较小的条件下,讨论了体内毒素浓度相同,具有食物链影响的二维Volterra互惠系统的生存状况,得到了种群β-生存和β-灭绝的充分条件.

With the methods of comparsion principle and integral mean value, in a small capacity and polluted envi ronment, the survival status of two -dimensional Voherra cooperative system having equal toxin in bodies and being affected by food chains is studied, the sufficient conditions for β - persistence and β- extinction are obtained.