人口条件约束下的城市元胞自动机模型研究  

Study on the Dynamic City Model Based on Cellular Automata and Population Condition

作　　者：张岩[1] 陈云浩[1] 李京[1] 

机构地区：[1]北京师范大学资源学院,资源技术与工程研究所北京100875

出　　处：《中国图象图形学报》2007年第8期1483-1488,共6页Journal of Image and Graphics

基　　金：教育部高等学校博士学科点专项科研基金项目(20030027014);三维信息获取与应用教育部重点实验室基金项目;测绘遥感信息工程国家重点实验室开放基金项目(WKL(03)0102)

摘　　要：城市化过程中人口的流动和转移,改变了不同地域上的人口分布,同时对原有用地需求和用地格局产生影响,使得土地利用方式发生相应的变化,因此探讨人口变动是研究非城市用地向城市用地变迁的一个重要方面。近几十年来,人们尝试利用元胞自动机模型来模拟,预测城市用地的扩张,但是标准的元胞自动机仅通过初始状态和既定不变的演化规则很难模拟出日渐复杂的城市系统,本文尝试将人口分布和就业结构的变化作为一种限制因素来控制元胞自动机的演化,并以北京市城市建成区的扩展为例,通过为不同的区域赋予不同的限制值从而更加准确地模拟城市化过程中城市用地的扩张。The flow and shift of the population in the processes of urbanization have changed its distribution and also affected the demand and patterns of the land resource. Hence it is very important for us to pay more attention to the population distribution when we study the change of land use from non-urbanized to urbanized. In recent years, people attempt to simulate and predict all of these changes by cellular automata（CA）. But the cities are very complex systems, and there are many factors influence its development, especially human behaviors, so only use the cellular automaton with its non-change evolvement regulations to model all of these is not enough. Here we make the population distribution and employments structure as a restriction of CA, and simulate the expansion of Beijing. We gave different districts different indices, and then they can expand in different rates. The simulation results match the actual situation very well indicates that the model is appropriale.

关 键 词：城市化 人口密度 就业结构 元胞自动机模型 

分 类 号：P237.9[天文地球—摄影测量与遥感]