中文摘要：

自武汉城市圈获批两型社会建设综合改革配套实验区以来,湖北省政府以将城市圈“一强众弱”的畸形结构转变为“一核多强”的合理结构为总体目标,采取了一系列“一体化”建设措施,这些措施的实施是否推动了武汉城市圈城镇体系空间结构极化趋势的缓解,值得检验和深入研究.该文在运用城镇体系空间结构演变理论对武汉城市圈建设对其城镇体系空间结构演化带来的可能影响进行理论探讨的基础上,定量分析武汉城市圈建设前后其城镇体系空间结构的演变特征和趋势,结果表明：武汉城市圈建设后,其城镇体系空间结构的集聚趋势正在减弱,武汉城市圈已进入扩散性极化阶段;武汉城市圈建设在一定程度上达到了缓解其城镇体系空间结构极化趋势的目的.

英文摘要：

Since the approval of Wuhan Metropolitan Area as a synthetically reforming experimental area for the resource-conserving and environment-friendly society （RCEFS） by the State Council of China,Hubei provincial government has carried out a series of countermeasures to change Wuhan Metropolitan Area from the abnormal structure （i.e.Wuhan is quite big and strong,with other eight cities quite small and weak） to a reasonable structure （i.e.Wuhan is the core,with the other cities strong too）.It is worth examining and deeply studying whether the implementation of those countermeasures has retarded the polarization trend of the spatial structure of Wuhan Metropolitan Area＇s urban system.Therefore,based on a theoretical discussion on the evolution of the spatial structure of Wuhan Metropolitan Area＇s urban system on the background of the construction of the RCEFS,the authors made a quantitative analysis on the evolution features and trends of the spatial structure of Wuhan Metropolitan Area＇s urban system after the construction of the RCEFS.The results indicate that：1） the polarization trend of the spatial structure of Wuhan Metropolitan Area＇s urban system has been weakening; 2） the spatial structure of Wuhan Metropolitan Area＇s urban system has been in the last stage of polarization,i.e.the stage of polarization with dissemination; 3） the construction of the RCEFS,in some degree,has achieved its aims of retarding the polarization problem of Wuhan Metropolitan area.