山东省公路与经济发展耦合协调的时空演化

Spatiotemporal evolution of coupling coordination between highway and economic development in Shandong province

为研究山东省公路与经济发展相互作用关系,建立了公路和经济发展水平测度指标体系,运用熵值法和AHP相结合的组合赋权法进行指标赋权,对发展水平进行了测度;建立了耦合协调分析模型,计算了公路与经济发展的耦合度和耦合协调度,分别从时间和空间维度分析了二者发展水平及耦合协调的演化特征。结果表明:2011—2019年,山东省公路和经济发展水平不断上升,公路一直领先于经济发展,二者均呈现“东高西低-双核突出”空间格局;二者耦合度一直较高且稳定,已全面进入耦合协调时期,呈现出“以济青通道为集聚轴线向四周不断降低”的空间格局;二者耦合协调度逐步上升的趋势明显,实现了由基本协调向中度协调的演变,空间格局较耦合度更稳定,呈现“济青双核集聚”特征;二者发展存在显著地区差异,推进地区均衡将成为下步发展的重要着力点。

In order to study the interaction of highwayand economic development in Shandong province,the index system of highway and economic development is established,and the combined weight method of entropy value method and AHP are used to assign the index weight,and the development level of the two is measured;the coupling coordination analysis model is established and the coupling degree and coupling coordination degree are calculated.This paper studies the evolution characteristics of highway and economic development level and their coupling coordination from time and space dimension respectively.The result shows that from 2011 to 2019,the level of highway and economic development in Shandong province kept rising,and highway traffic was always ahead of economic development,and both of them showed a spatial pattern of"high in the east and low in the west-dual-core prominence".The coupling degree of the two has always been high and stable,and has entered a period of coupling coordination in an all-round way,showing a spatial pattern of"continuously decreasing to the surrounding area with the Ji-Qing Channel as the agglomeration axis".The coupling coordination degree of the two has an obvious trend of increasing gradually,realizing the evolution from basic coordination to moderate coordination;the spatial pattern is more stable than the coupling degree,showing the characteristics of"Ji-Qing dual-core agglomeration".There are significant regional differences in their development,so promoting regional balance will become an important focus of highway and economic development in the next step.