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综合采用标准差、锡尔系数分解和R/S分析方法,选取人均GDP为指标,以县域尺度为数据统计单元对“关中——天水”经济区的经济差异从时空角度进行分析。研究结果表明:经济区2001到2010年区域经济绝对差异逐年增大,其变化趋势呈现指数形式增加。相对差异方面,锡尔系数一阶段分解得,区域经济的总体差异主要是由两大区间的差异引起的,其次为关中地区的差异,最后为天水地区。锡尔系数二阶段分解得,区域经济总体差异明显大于基于市域为基本研究单元的结果。经过R/S分析得到的“关中—天水”经济区县域经济相对差异呈现发散的状态,县域经济的相对和绝对差异都将继续增大。
Using the standard deviation, partial factorization, and R / S analysis, we choose the per capita GDP as the index, and analyze the economic difference of “Guanzhong-Tianshui” economic zone from the perspective of space-time by taking the county scale as the data statistical unit. The result shows that the absolute difference of regional economy in the economic zone from 2001 to 2010 increases year by year, and the trend of change shows an exponential increase. As for the relative difference, the Syr-Cola coefficient is decomposed in a first stage, and the overall difference of regional economy is mainly caused by the difference between the two major regions, followed by the differences in the Guanzhong region, and finally the Tianshui region. As a result of the two-stage decomposition of the Syr-Coefficient, the overall regional economic disparity is significantly larger than that based on the urban area as the basic research unit. After R / S analysis of “Guanzhong - Tianshui ” economic zone relative divergence of the county economy showed a divergent state, the relative and absolute differences in county economy will continue to increase.