基于县域单元的武汉城市圈经济时空差异研究

Research on Temporal-spatial Disparities of Economy at County Level in Wuhan Metropolitan Area

将传统统计分析方法与ESDA方法相结合，借助OpenGeoda1.0和ArcGIS9.3，以县域为研究单元，以人均GDP为测度指标，从时间、空间和关联性三个侧面对1996～2010年武汉城市圈县域经济差异的空间格局及演化进行了分析。结果表明，武汉城市圈县域经济存在明显的全局空间正相关性，且具有持续增强的趋势；区域经济初步表现出“二元结构”发展特征，以武汉市为中心的经济高值区辐射效应较弱，极化作用显著；“俱乐部趋同”现象在武汉城市圈县域经济发展中初步显现。着重分析了区域发展战略对武汉城市圈经济发展水平空间格局演变的驱动作用。

With the aid of OpenGeoda1.0 and ArcGIS9.3, this paper was done on the county level and measured by index of per capita GDP with the methods of traditional statistical analysis and ESDA. Temporalspatial pattern and evolution of county-level economic disparities in Wuhan Metropolitan Area during 1996~2010 were analyzed from three aspects, namely, time series, spatial series and spatial autocorrelation. Some conclusions are drawn as follows: the countylevel economy of Wuhan Metropolitan Area shows a strong trend of positive spatial autocorrelation, and this trend is becoming increasingly intensive; the characteristics of the dualistic structure are becoming prominent in the Wuhan Metropolitan Area, and the polarization effect in the core area which centers in Wuhan city is remarkable while the radiation effect is weak; the club convergence is existing in Wuhan Metropolitan Area. Finally the paper focused on analyzing the effects of regional development strategy which was an important driving force of the spatial pattern evolution of economic differences in Wuhan Metropolitan Area.