一种人口迁移行为的动力学模拟与结构熵分析

发布时间：2018-06-24 12:16

本文选题：人口迁移 + 结构熵　；参考：《河北大学学报(自然科学版)》2014年06期

【摘要】：人类行为研究一直是复杂系统关注的焦点,其动力学研究主要用以揭示人类行为发生的时空分布规律.人类行为的发生既有个体性也有群体性,目前的研究主要集中于前者.本文在一个二维网格上构建了受自然因素制约的人口迁移模型.结合"推拉理论",模型中侧重考虑了不同区域农业经济发展水平,迁入地数量及区域间距离对迁移人口规模的影响.利用模型模拟了迁出及迁入区人口及人均粮食产量的变化趋势,并探讨了迁移发生过程中的熵变.结果表明,熵变呈先增后减趋势,说明系统人口迁移行为的发生经历了从无序到有序的发展进程.结合人口规模斑图进一步说明人口理性回迁是引起熵减的直接原因.
[Abstract]:The study of human behavior has always been the focus of attention in complex systems, and its dynamics is mainly used to reveal the temporal and spatial distribution of human behavior. The occurrence of human behavior is both individual and group, and the current research focuses on the former. In this paper, a population migration model constrained by natural factors is constructed on a two-dimensional grid. Combined with "push-pull theory", the influence of different regional agricultural economic development level, the number of migration sites and the distance between regions on the migration population is considered in the model. The model is used to simulate the changing trend of population and grain output per capita in the emigration and immigration areas, and the entropy change during the migration process is discussed. The results show that entropy change increases first and then decreases, indicating that the occurrence of systematic population migration has gone through a process from disorder to order. Combined with population scale pattern, it is further proved that rational migration of population is the direct cause of entropy reduction.
【作者单位】：宁夏大学物理电气信息学院;宁夏沙漠信息智能感知重点实验室;
【基金】：宁夏自然科学基金资助项目(NZ12161) 国家自然科学基金资助项目(11265011;10565002)
【分类号】：C922

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