西江流域广西段区域经济差异的时空演变特征

The Spatio-temporal Evolution of Regional Economic Differences in the Guangxi Section of the Xijiang River Basin

利用标准差、变异系数、锡尔系数等测度指标,从县级、市级、地带3个空间尺度,衡量西江流域广西段2004—2019年的经济差异程度。结果证实:自2004年以来,县域人均GDP的绝对差异持续扩大,相对差异波动上升后回落;整体经济差异呈现两极分化,经济结构呈“核心-边缘”特征;各县相对发展速率空间差异显著;宏观上,地带间差异是构成整体差异的主体;微观上,市域内经济发展不平衡性远超地带间和市域间,大体决定了总体经济差异的走势。

Measurement indicators,including standard deviation,coefficient of variation,and theil coefficient are used to measure the degree of economic disparity in the Guangxi section of the Xijiang River Basin from 2004 to 2019 from three regional spatial scales,including county,city,and zone.The results confirm that:Since 2004,the absolute difference in per capita GDP at the county level has continued to expand,while the relative difference has fluctuated up and then declined.The overall economic gap has been polarized,and the economic structure has shown a“core-peripheral”characteristic.The relative development rate of each county has a significant spatial difference.On the macro level,the evolution trend of the differences is the main body of the overall difference.On the micro level,the imbalance of economic development within the city area far exceeds that between the zones and the city area,which generally determines the trend of the overall economic difference.