试论城市空间结构演化机制和我国大城市空间优化模式

On the urban space structure evolution mechanism and the optimization mode of metropolis of China

空间结构是城市土地利用的抽象表达.土地利用和空间结构是城市总体规划的核心内容.在分析城市空间演化动力机制的基础上,根据我国大城市形态特点和规划实践,总结出我国大城市空间优化的基本模式为圈层扩展和轴线延伸的耦合,多核心网络状空间结构是大城市的发展趋势和规划选择.这些理论总结为城市空间拓展及我国大城市的空间优化明确了战略方向.

Urban space structure is the abstract statement of urban land use. And they are the core content of urban master planning. Based on the analysis of the dynamic mechanism of urban space evolution, this paper suggests that the basic space mode of a metropolis be coupled with rings and axis. Multi-core net structure shall be the developing trend of a large city. These views will benefit urban space planning and the urban space expansion direction will be clearer.