就地城镇化背景下扩展大都市区空间结构的演变--以泉州市为例

Changes in the Spatial Pattern of Extended Metropolitan Region Against the Background of In Situ Urbanization:The Case of Quanzhou City

基于人口普查、统计年鉴、土地利用现状调查等资料,利用GIS空间分析等方法,考察了1990-2010年间就地城镇化背景下泉州扩展大都市区空间结构的演变特征,研究发现,泉州扩展大都市区空间结构的演变过程既符合都市区化的世界性潮流,又有就地城镇化特征:第一,整体空间规模持续扩大,其中核心区的初始规模较小且增长较慢,城乡融合区初始规模较大且增长显著,在扩展大都市区占主导地位.第二,空间形态呈断续分布、多点集聚特征,但在研究期内离散程度有所降低.第三,扩展大都市区空间城镇属性逐步提高且以低标准城乡融合区到高标准城乡融合区再到核心区的就地转化为主,并伴随着以人口集聚为主的外延型向以就业非农化为主的内涵型的蜕变,研究认为应重视对扩展大都市区空间结构演变的调控,构建一种城乡融合的空间管理体系,优化功能空间布局、促进扩展大都市区空间发展由外延型向内涵型的转变.

Based on the demographic census data,statistical yearbook data and land use data,and using various methods including GIS spatial analysis,this paper examines changes in the spatial pattern of Quanzhou Extended Metropolitan Region(QZ EMR) from 1990 to 2010 against the background of In Situ urbanization. The results indicate that changes in the spatial pattern of QZ EMR are consistent with the general features of world trends of Metropolitanization,but exhibits some particular characteristics resulting from In Situ urbanization. While the whole spatial scale of QZ EMR expanded continuously in the whole period of 1990 to 2010,the initial spatial scale of its core region was small and grew only slowly,and that of its desakota region was larger and grew significantly,taking a dominant position in the whole EMR.The spatial pattern of the whole EMR was characterized by its discrete distribution and multi-centered agglomeration,but the degree of spatial integration in the EMR had increased in the 2 decades of 1990 to 2010.The urban characteristics of the EMR gradually increased mainly by the In Situ transformation of the low-standarded desakota region into the high-standarded desakota region,and further into the core region.Non-agricultural employment contributed increasingly more to the above process than population agglomeration.The paper argues that more attention should be pay to the changes in the spatial pattern of EMR,and a better spatial management system for urban-rural integration in the EMR should be developed in order to achieve its optimal transformation and operation.