新型城镇化背景下城市群空间结构优化研究--以四川省四大城市群为例

城市群空间结构作为城镇体系的三大结构之一，是城市群发展程度、阶段与过程在空间上的反映，是各个城市的经济结构、社会结构、等级规模结构、职能结构等在地域空间上的投影，城市群发展必然伴随着城市群空间结构的变化。在明确城市群空间结构的内涵、基本要素、演化路径及阶段等内容的基础上，以四川省四大城市群为例，探索四川省城市群空间结构优化的路径，提出按照“培育点、打造群、健全线”的基本思路，构建“三位一体”的城市群空间结构体系，以期对更广范围内的城市群空间结构的构建与完善提供参考，推动我国新型城镇化建设进程。

Research on Urban Agglomeration Spatial Optimization under the Background of New Urbanization:Four Urban Agglomeration of Sichuan as an Example

Urban spatial structure is one of the three major structures of urban system,and is the reflection of urban agglomeration’s developing situation.It is the space projection of city’s economic structure,social structure,hierarchical structure and functional structure.Urban agglomeration development will inevitably be along with the change of the spatial structure.This article will clear the connotation and basic elements of urban agglomeration spatial structure,the expansion principle and the main patterns.Then we will take the four urban agglomerations in Sichuan province as an example,through exploring the path of the Sichuan urban agglomeration spatial structure optimization,put forward the construction of urban spatial structure system of trinity.