摘要
研究一类更广的捕食-食饵种群模型.利用极限方法和积分均值法,得到在污染环境中各种群平均持续生存与绝灭的阈值,从而给出系统持续生存和绝灭的充分条件.本文推广了文献[1]中的结果.
A wider range of predator-prey model in a pollution environment is investigated in this paper. By using the method of integral average, the thresholds of permanence in mean and extinction for each species are obtained. Thus we gives sufficient condition for the permanence and extinction of the system. The chief conclusions of in the references are included as special cases in this paper.
出处
《沈阳化工大学学报》
CAS
2012年第3期275-277,共3页
Journal of Shenyang University of Chemical Technology
关键词
环境污染
捕食-食饵模型
持续生存
绝灭
阈值
environmental pollution
predator-prey model
permanence
extinction
threshold
