摘要
针对传统元胞自动机模型中栅格式规则空间模拟复杂地理元素精度不高的问题,提出一种基于土地区块特征的非规则空间元胞自动机模型,以地理单元实质不规则实体形状作为元胞空间单元,进行土地利用变化的仿真模拟,运用MapInfo建立非规则空间元胞自动机模型的应用软件。对头灶镇土地利用演化的实证研究表明,非规则空间元胞自动机模型可以更真实地描述元胞地理信息、局部空间关系和演化规则,可为城市规划提供决策支持。
This paper presents a new model to simulate the dynamic change of multiple land uses based on praedial-block feature cellular automata. Recently,cellular automata （CA） have been increasingly used to simulate urban growth and land use dynamics. Traditional CA models simulate urban growth with regular-figure, which are invariant within a region. The regular-figure CA models have limitations in simulating dynamic urban growth in a complex region. It is considered that the development probability of cells with the irregular-figure may vary in the spatiotemporal dimensions because of the complexity of urban systems. The irregular-figure feature concept including geographical unit was attributed to the CA,and the concept model of CA was con- structed based on praedial-block feature. This proposed model was used to simulate the urban growth of the Touzao Town from 2002 to 2015. The prediction of urban land use in 2015 was also carried out by using this model based on the development trajectory. The result of the simulation proved that CA based on praedial-block feature is feasible because overall accuracies was calculated by comparing the simulated patterns with the actual ones from map data. It can more truly describe geographic information,local spatial relation and evolvement rule. Therefore,it can help directly in urban planning and management.
出处
《地理与地理信息科学》
CSCD
北大核心
2009年第3期74-76,107,共4页
Geography and Geo-Information Science
基金
教育部新世纪优秀人才计划项目(070003)
安徽省教育厅自然科学研究项目(KJ2008B186)
关键词
土地区块特征
元胞自动机
土地利用
时空模拟
praedial-block feature
cellular automata
land-use change
space-time simulation
