运用空间变异函数和空间自相关分析模型,以地均GDP为指标,重点从省域和县域尺度分析2000年以来中国经济的时空分异特征。结果表明:①中国地均GDP由103万元/平方公里增加到418万元/平方公里,北方省份的经济增长速度快于南方,东部地区和西部地区的经济增长速度较快;②大多数县域地均GDP低于全国平均水平,“东高西低”阶梯式递减的规律明显,经济发展热点区呈现出“北移西进”的态势;③中国县域经济表现出较强的空间自组织性,热点区域在环渤海地区、长三角和珠三角地区积聚,东南-西北方向地均GDP的空间差异最大。
<<Comprehensively using the methods of ESDA,Moran’s I,Getis-Ord General G and spatial variogram,this article describes and analyzes the spatial characteristics of per km2GDP in China during 2000-2010.(1)per km2GDP increases from 103×104yuan/km2 in 2000 to 418×104yuan/km2 in 2010. Rapid economic growth of China experienced a spatial shift from coastal regions to inland regions,and economic gravity center moved northward and westward.(2)Considering the overall spatial framework,per km2GDP at county level in China shows a significantly trend of spatial natural correlation. The hotspot regions expand obviously,with circular space structure centered on the area along Bohai Rim,the Yangtze River Delta and the Zhujiang Delta.(3)The spatial self-organized characteristicsof per km2GDP has become stronger and stronger. The homogeneousness of per km2GDP in the direction of northeast-southwest is typical for its relatively small spatial difference.
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