川东北地区“人口-经济-空间”城市化耦合协调性研究

Coupling Coordination of“Population-Economy-Space”Urbanization in Northeast Sichuan

为了探究川东北地区人口、经济、空间城市化耦合协调发展程度,文章通过构建人口、经济和空间城市化内在表征指标体系,借助熵权法计算各项指标的权重,运用耦合协调模型,对川东北地区人口、经济、空间城市化水平及其耦合协调度进行分析。结果表明:(1)川东北地区空间城市化主导了经济和人口城市化,但整体水平有待提升;(2)人口、经济、空间城市化区域差异明显,呈现出“南高北低”的趋势,且表现出圈层结构;(3)人口、经济和空间城市化两两耦合和三者耦合度整体较低,市域内差异也较大,呈现出以主城区为中心向四周递减的趋势;(4)从耦合协调度上看,川东北地区城市化耦合协调度较低,仅南充市顺庆区处于勉强协调阶段,而广元市和巴中市等地处于严重和重度失调阶段。川东北地区整体城市化水平不高,以空间城市化为主导,城市化耦合协调度较低,文章揭示其变化和差异的主要原因,为研究区城市化发展提供借鉴。

To explore the coupling and coordinated development degree of population,economy and spatial urbanization in Northeast Sichuan,the internal representation index system of urbanization evaluation is constructed,and the weight of each index is calculated by entropy weight method.The urbanization level and coupling coordination degree of population,economy and space is analyzed by coupling coordination model.The results are as follows:(1)The urbanization of economy and population is dominated by spatial urbanization in Northeast Sichuan,but the overall level needs to be improved;(2)The obvious regional differences of population,economy and spatial urbanization have formed a circle structure,presenting a trend of“high in the south low in the north”;(3)The pairwise and triplex coupling degree of population,economy and spatial urbanization is relatively low on the whole,and the difference of the coupling degree is also large within the city,showing a decreasing trend from the center of the main urban area to the periphery;(4)From the perspective of coupling coordination degree,the urbanization coordination degree in Northeast Sichuan is comparatively low,only Shunqing District of Nanchong City is barely in the stage of coordination,while Guangyuan City and Bazhong City are in the stage of serious or severe imbalance.Dominated by spatial urbanization,the overall urbanization level of Northeast Sichuan is not high and the coupling coordination degree of urbanization is low.This paper reveals the reasons for the changes and differences,and provides references for the urbanization development in the research area.