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基于ArcGIS,Geoda软件,运用加权变异系数、标准差、经济增长指数和探索性空间分析方法(ESDA),利用2002年-2014年人均GDP数据对湖北长江经济带48个县域的经济空间格局特征及其时空演变趋势进行定量分析.研究表明:1时间演变特征:湖北长江经济带县域经济绝对差异显著增大,相对差异呈先缓慢增大后逐渐减小特征,县域经济整体发展缓慢;2空间演变格局:县域经济空间自相关性显著,呈现相对稳定的空间格局,具有“大均质,小异质”的空间分布特征,逐渐形成以武汉、宜昌、黄石3市市辖区为主的热点区域.县域经济增长空间格局表现出随机性和不稳定性,引领区域经济长期稳定发展的核心县域数量较少,未形成连绵分布的态势.
Based on ArcGIS and Geoda software, using the method of weighted coefficient of variation, standard deviation, economic growth index and exploratory spatial analysis (ESDA), using the data of per capita GDP from 2002 to 2014, the economic spatial pattern of 48 counties in the Yangtze River Economic Belt of Hubei Province, The results show that: 1 Time evolvement characteristics: The absolute difference of county economy in Hubei Yangtze River economic belt increases significantly, the relative difference increases slowly and then decreases gradually, and the overall economic development of county is slow; 2 Spatial evolution Pattern: The spatial autonomy of county economy is significant, showing a relatively stable spatial pattern with the spatial distribution characteristics of “large homogeneity and small heterogeneity”, and gradually formed the hotspots mainly in the municipal districts of Wuhan, Yichang and Yellowstone Area.The spatial pattern of economic growth in the county shows randomness and instability, and the number of core counties leading the long-term stable development of the regional economy is relatively small, which has not formed a pattern of continuous distribution.