| 阶段结构捕食系统的最优收获策略 |
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| 引用本文： | 叶凯莉.阶段结构捕食系统的最优收获策略[J].信阳师范学院学报(自然科学版),2002,15(4):382-386,398. |
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| 作者姓名： | 叶凯莉 |
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| 作者单位： | 信阳师范学院,经济管理学院,河南,信阳,464000 |
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| 基金项目： | This work is supported by the Natural Science Foundation of Henan Province(No.0 2 1 1 0 1 0 40 0 ) |
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| 摘 要： | 在生物经济即可更新资源管理中，捕食系统起着非常重要的作用。本文建立一个具阶段结构和捕食关系的两种群生物经济模型，分别获得了一个或两个种群绝灭和两种群持久生存的充分必要条件，也获得了保持生态环境持续发展的最优收获策略和收获成年种群的阈值，并给出了所得结果的实际意义。
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| 关 键 词： | 阶段结构 捕食系统 生物经济模型 持续生存 最优收获策略 捕食关系 |
The optimal harvesting policy of stage-structured predator-prey system |
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| YE Kai,li.The optimal harvesting policy of stage-structured predator-prey system[J].Journal of Xinyang Teachers College(Natural Science Edition),2002,15(4):382-386,398. |
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| Authors: | YE Kai li |
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| Abstract: | Predator prey models play a crucial role in bioeconomics,that is the management of renewable resources.A bioeconomic model of two species with stage structure and the relation of predator prey is established,the necessary and sufficient condition for the permanence of two species and the extinction of one species or two species is obtained.The optimal harvesting and the threshold of harvesting for the sustainable development is also obtained. |
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| Keywords: | bioeconomic modelling permanence the optimal harvesting policy |
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