| 环境污染中三维捕食_被捕食系统生存和绝灭的阈值 |
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| 引用本文： | 刘宇红,刘志美.环境污染中三维捕食_被捕食系统生存和绝灭的阈值[J].广东海洋大学学报,2007,27(3):96-99. |
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| 作者姓名： | 刘宇红 刘志美 |
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| 作者单位： | 广东海洋大学理学院,广东,湛江,524088 |
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| 基金项目： | 广东海洋大学校科研和教改项目 |
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| 摘 要： | 研究了一类受环境污染的3种群系统,得到了三维捕食_被捕食系统持续生存与绝灭的阈值,并由此对系统的正平衡点的稳定性进行了分析。
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| 关 键 词： | 阈值 环境污染 弱平均持续生存 正平衡点 绝灭 |
| 文章编号： | 1673-9159（2007）03-0096-04 |
| 修稿时间： | 2006-09-19 |
The Threshold of Persistence and Existence for System of Three Species Predator-prey in Polluted Environment |
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| LIU Yu-hong,LIU Zhi-mei.The Threshold of Persistence and Existence for System of Three Species Predator-prey in Polluted Environment[J].Journal of Zhanjiang Ocean University,2007,27(3):96-99. |
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| Authors: | LIU Yu-hong LIU Zhi-mei |
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| Institution: | College of Science , Guangdong Ocean University , Guangdong Zhanjiang , 524088 China |
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| Abstract: | In this thesis,we carried out researches on a kind of three species predator_prey system under polluted environment.The threshold of subsistence and existence of three species predator_prey system is obtained and stability of positive equilibrium for system is analysed. |
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| Keywords: | threshold polluted environment week persistence in the mean extiction positive equilibrium |
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