Practical Application of the Region Economy Differences Theories in the Division of the Urban economic regions——Take Gansu province as an Example
以GDP为指标，从时间和空间变化角度分析甘肃省五个城市经济区的差异特征，为区域经济划分提供方法参考。
Based on the related theories of the region economy differences, took the GDP as the measure index, this article formed the method of comparing region economy from time and space change of region economy differences. And according as this method, it analyzed the characteristics of the differences of the five urban economic regions in Gansu province's including Longzhong, Hexi, Longdong, Longnan and Southern nation's region(Linxia autonomous prefecture,Gannan autonomous prefecture).