| 棉蚜种群数量动态模型 |
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| 引用本文： | 郑立飞,赵惠燕,刘光祖,吴月宁.棉蚜种群数量动态模型[J].生物数学学报,2008,23(2). |
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| 作者姓名： | 郑立飞 赵惠燕 刘光祖 吴月宁 |
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| 作者单位： | 1. 西北农林科技大学,理学院,陕西,杨凌,712100
2. 西北农林科技大学,植物保护学院,陕西,杨凌,712100 |
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| 摘 要： | 本文以棉蚜为例,提出了蚜虫种群数量动态的通用模型,指出蚜虫在一年的生活周期中,从数量动态上可分为几个小周期.每个小周期皆由一个上升段及一个下降段构成,并且上升段是由逻辑斯蒂方程来描述,下降段是由反逻辑斯蒂方程来描述.最后用实际数据进行了拟合,说明其正确性与普遍性.
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| 关 键 词： | 蚜虫 种群动态 逻辑斯蒂曲线 反逻辑斯蒂曲线 |
Aphid Population Numerical Dynamical General Model |
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| ZHENG Li-fei,ZHAO Hui-yan,LIU Guang-zu,WU Yue-ning.Aphid Population Numerical Dynamical General Model[J].Journal of Biomathematics,2008,23(2). |
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| Authors: | ZHENG Li-fei ZHAO Hui-yan LIU Guang-zu WU Yue-ning |
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| Institution: | 1 (1 Life Sciences College; Northwest A & F University; Yangling Shanxi 712100 China) (2 Plant Protection College; Yangling Shanxi 712100 China); |
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| Abstract: | This paper put forward aphid population numerical dynamical general model with example of cotton aphid,and indicated that aphid s year periodicity can be divided several little periodicities,each of which includes one up-phase and down-phase.The up-phase is de- scribed with Logistic curve,but the down-phase with antilogistic curve.Lastely the paper gave some data to fit it and demonstrated its correction and universal. |
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| Keywords: | Aphid Population dynamics Logistical curvel Antilogistic curve |
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