摘要
对具毒素影响的二维Kolmogorov模型进行研究,利用积分均值法,得到了各种群平均持续生存和绝灭的阈值,并得到了外界输入率的阈值.
A model of two-kolmogorov with toxicant effect is studies. By the method of integral average, the threshold of persistence in mean and extinction for each species are obtained, and the threshold of outsait input rate are obtained.
出处
《数学的实践与认识》
CSCD
北大核心
2007年第16期103-106,共4页
Mathematics in Practice and Theory
基金
广东海洋大学资助课题(0412098)
关键词
阈值
持续生存
绝灭
threshold
persistence
extinction
