吉林大学学报(理学版) ›› 2019, Vol. 57 ›› Issue (5): 1088-1094.

• 数学 • 上一篇    下一篇

污染环境下具瞬时与非瞬时脉冲收获的单种群动力学模型

焦建军1, 陈兰荪2, 李利梅3   

  1. 1. 贵州财经大学 数学与统计学院,  贵阳 550004; 2. 中国科学院 数学研究所, 北京 100080;3. 贵州财经大学 继续教育学院,  贵阳 550004
  • 收稿日期:2019-03-01 出版日期:2019-09-26 发布日期:2019-09-19
  • 通讯作者: 李利梅 E-mail:1006805680@qq.com

Dynamics of Single Population Model with Transient and Non-transient Impulsive Harvesting in Polluted Environment#br#

JIAO Jianjun1, CHEN Lansun2, LI Limei3   

  1. 1. School of Mathematics and Statistics, Guizhou University of Finance and Economics, Guiyang 550004, China; 
    2. Institute of Mathematics, Chinese Academy of Sciences, Beijing 100080, China;
    3. School of Continuing Education, Guizhou University of Finance and Economics, Guiyang 550004, China
  • Received:2019-03-01 Online:2019-09-26 Published:2019-09-19
  • Contact: LI Limei E-mail:1006805680@qq.com

摘要: 利用脉冲微分方程理论, 研究污染环境下具瞬时与非瞬时脉冲收获的单种群动力学模型, 给出系统种群持续生存的充分条件. 结果表明, 瞬时脉冲收获量与非瞬时脉冲收获区间长度对系统种群持久有重要作用.

关键词: 污染环境, 瞬时脉冲收获, 非瞬时脉冲收获, 区间长度, 灭绝, 持久

Abstract: Using the theories of impulsive differential equations, we investigated the dynamics of a single population model with transient and nontransient impulsive harvesting in polluted environment, and gave the sufficient conditions for the permanence of the population. The results show that the amount of transient impulsive harvesting and the nontransient impulsive harvesting interval length play important roles in the permanence of the population.

Key words: polluted environment, transient impulsive harvesting,  , non-transient impulsive harvesting, interval length, extinction, permanence

中图分类号: 

  • O175.2