基于CA模型的城市空间扩展研究--义乌市为例  

Study on the urban spatial expansion based-on CA model-taking Yiwu city as an example

作　　者：杨亮洁[1] 王录仓[1] 牟乃夏[2] 

机构地区：[1]西北师范大学地理与环境科学学院,兰州730070 [2]山东科技大学地球信息科学与工程学院,山东青岛266510

出　　处：《测绘科学》2009年第3期142-144,222,共4页Science of Surveying and Mapping

摘　　要：本文引入地理信息系统(GIS)和元胞自动机的有机集成而构筑的GeoCA-Urban模型模拟义乌市城市空间扩展的动态演化过程。结果表明:从发展速度分析,义乌市城市发展经历了一个起步—缓慢发展—爆炸发展的过程,而且爆炸式发展还在继续,从发展的空间布局上分析,义乌市在交通(主要是浙赣铁路和主要公路)、水系(义乌江)和城市中心辐射作用下,经历了带状(东北西南向)—椭圆—圆形的发展过程。通过设置转换规则、参数,真实直观地再现展示了城市空间系统的演化过程,为城市规划等提供了辅助决策。City is a typical complex system. Understanding of urban development process is highly crucial to urban development planning. Cellular automata, a technique developed recently, has been receiving more and more attentions in urban growth modeling clue to its simplicity, transparency and strong capacities for dynamic spatial shnulation. In this paper, based on GeoCA-Urban model, coupled with GIS and CA, the urban growth of Yiwu city is simulated. The simulation results indicated that the process of Yiwu city growth is starting- slow development - rapid development in developing speed. As a key city, under the action of traffic, Yiwu Jiang water system and radiation effect, the process of Yiwu city growth is zonal （the northeast-southwest direction. ） -Elliptic-circular evolvement in spatial distribution.

关 键 词：城市空间扩展 GIS 元胞自动机城市地理元胞自动机 义乌市 

分 类 号：P208[天文地球—地图制图学与地理信息工程]