四川省县域经济增长数量与质量耦合协调的时空演变与机制

The Spatio-Temporal Evolution and Mechanism of the Coupling and Coordination on Quantity and Quality for Economic Growth of Vavious Counties in Sichuan

以四川省183个县域为基本研究单元,构建县域经济增长数量与质量耦合协调评价指标体系,运用熵值法、耦合协调模型、地理探测器等方法,对2006、2010、2016、2020年四川省县域经济增长数量和质量综合水平、时空耦合关系及影响因素进行探究,结果表明:1)经济增长数量水平先大幅提升后略有下降,保持“东高西低”的空间格局;经济增长质量水平整体呈上升趋势且县域差异先增大后略微减小,呈现多样性分布特征;2)耦合协调水平呈持续上升态势,总体上实现由濒临失调向基本协调过渡,2006—2010年呈现“中部南部凸起,外围塌陷”的空间格局;2016—2020年基本协调县域由成都市向外围地区加速扩散直至基本遍布全省;3)耦合协调类型整体上逐步由质量滞后向相对协调转变,数量滞后型和质量滞后型县域数量变化趋势呈“六边形”对称分布,相对协调型县域数量先略微下滑后平稳增长;4)人均GDP、民生福祉、经济发展潜力、经济开放性对耦合协调水平提升有显著影响.

Taking 183 counties in Sichuan province as the basic research unit,this paper constructs a comprehensive index system of quantity and quality for county’s economic growth,using entropy method,coupling coordination model,and geographical detector,analyzing the spatial-temporal evolution characteristics and mechanism in 2006,2010,2016 and 2020.The results show that:1)the quantity level of economic growth increases first and then decreases slightly,keeping the spatial pattern of“High in the east and low in the West”;the overall quality level of economic growth showed an upward trend,and the county-level difference first increased and then decreased slightly,showing the characteristics of diversity distribution;2)the coupling coordination degree showed a continuous upward trend,and on the whole,it transformed from the borderline imbalance to the basic coordination;from 2006 to 2010,the regional development was unbalanced,showing a spatial pattern of“Central south bulge,peripheral collapse”.From 2016 to 2020,the basic coordination of counties from Chengdu to peripheral areas to accelerate the spread of the province until it is basically spread throughout the province;3)on the whole,the relative development degree gradually changes from the quality lag to the relative coordination,and the relative coordination county quantity first declines slightly and then increases steadily,while the trend of quantity change in county areas with quantity and quality lag is in“Hexagonal”symmetry distribution;4)the order from strong to weak effect is economic development potential,resource environment,welfare distribution,economic structure,economic stability,economic quantity and economic efficiency.