元胞自动机(Cellular Automata,CA)是一种"自下而上"的动态模拟建模框架,具有模拟复杂系统时空演化过程的能力。本文将对标准CA进行扩展,以南京市为研究区域,对其城市扩展进行模拟。 【英文摘要】 CA is a bottom to top spatiotemporal modeling frame,which has the ability of modeling complex system in spatiotemporal process.Taking Nanjing as research area,this paper constructs to extend the standard CA,and simulates the urban sprawl of Nanjing city.