The Temporal and Spatial Variation of the Counties' Economy in Hohhot-Baotou-Rrdos-Yulin Economic Zone
研究了2001-2009年呼包鄂榆经济区38个县域经济的时空变化和空间关联，发现经济差异年际稳定、大城市极化效应强而扩散效应弱、经济水平呈中心高四周低的三核结构，存在高值聚类和低值聚类。
Hohhot-Baotou-Erdos-Yulin region is one of the fastest economic development regions of western China in recent years.The paper collection these data of 12 indicators of 38 counties in this region from 2001 to 2009,use SPSS,AGCGIs,ESDA software to do principal component analysis,space analysis,visualization,study the temporal,spatial variation and the spatial correlation of the county economy.The results show that : the inter-annual variation curve of the economic differences among counties is the relatively stable:,there is no obvious ups and downs.The changes of four county economy types is relatively stable,there is obvious change in local counties.Polarization effects in large cities are relatively Significantly,while the diffusion effects is obviously not strong.The number structure of county economic level type evolves from the bucket-type to football-type.The distribution of county economy Level was that the high economic level counties was in center,surrounded by low economic level counties,economic developed counties and high-income counties are mainly located in the Ordos central,Hohhot City and Baotou City District,low-income counties are mainly located in the south of Yulin City.County economic level spatial structure was typical Triple-core morphology,Hohhot City,Baotou City,Dongsheng District constitute the center of regional economic development,but they are inadequate leading role on the regional economy.There are the obvious spatial clustering with the county economic level,this means that the high-score clustering and low-score concentration,the high-score clustering in the Erdos Central,low gather in the south of Yulin City.There are the obvious the hot zone and the blind spot area of the county economic level,the hot zone is in Dongsheng District,the blind area is in the south of Yulin City.