湖北长江经济带县域经济格局时空演变研究

Study on Time-Spatial Evolvement of County Economy in Hubei Yangtze River Economic Zone

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.

Basted on ArcGIS and Geoda software and quantitative methods of variation in standard deviation,weighted variation,economic growth index,and the correlation analysis of ESDA,the temporal evolution tendencies and spatial differentiation characteristics were quantitatively analyzed.This paper took GDP per capita as indicator to study the evolvement of economy in Hubei Yangtze River economic Zone at the county level from 2002 to 2014.The results are as follows：Firstly,the absolute difference of county economic had a strengthening trend to increase,and the relative difference obviously decreased after the first slowly increased on time series;the development of the county economy was slowed during these 10 years.Secondly,from the spatial distribution pattern,the county economy of Hubei Province Yangtze River Economic Zone had a significant spatial autocorrelation,and it showed regionally heterogeneous at the large scale and homogeneous at the small scale.The spatial distribution gradually formed three main growth poles in the county which under the jurisdiction of Wuhan,Yichang,and Huangshi cities.Finally,the spatial pattern of economic growth showed a trend from random distribution and instability.