减少细胞自动机城市空间演化模型中待定参数的一种方法

A Method to Reduce the Number of Unknown Parameters Existing in the Cellular Automata-Urban Space Model

针对目前细胞自动机城市空间演化模型中存在较多待定参数的情况 ,通过引入定量描述土地功能值的方法 ,有效地减少模型中的待定参数 ,提高模型的实用性 .该模型用于桂林市区 1973～ 1993年城市空间演化的重建过程 。

A cellular automaton urban space(CAUP)model is proposed by introducing quantitative function value for each block of lands.This method can effectively reduce the number of unknown parameters in the CAUP model,and increase the possibility of using the model in the simulation process.By applying our model to the rebuilding process of urban space evolvement of Guilin urban area from 1973 to 1993 and then comparing this experimental result with the real satellite pictures of the city,this paper finds that the solution is right and suitable for the real application.