Spatial effect and heterogeneity of expressway on county economic development:An empirical study based on Fujian province
Expressway is an important part of the comprehensive transportation system and the basic support for the convenient flow of regional resource elements.Based on the expressway and economic data of Fujian province,this study analyzes the spatial and temporal evolution characteristics of expressway density and economic development level of counties in Fujian from 2010 to 2020 and reveals the spatial effect and spatial heterogeneity of expressways on economic development of counties by using spatial panel model and spatial and temporal geographically weighted regression.The findings of the research are as follows:(1)The density of expressways in all counties in Fujian increased significantly from 2010 to 2020,and the trend of spatial agglomeration is obvious.Counties with high expressway density are concentrated in the eastern coastal areas of the province,and those with low expressway density are mainly distributed in the central,western,and northern parts.(2)The level of economic development in Fujian's counties from 2010 to 2020 increased significantly.At the same time,the spatial differences in the level of economic development in counties tended to narrow.The spatial agglomeration range of counties with low-level economic development in the central and western parts of the province narrowed,while the spatial agglomeration range of counties with high-level economic development in the eastern coastal areas expanded.The level of economic development of counties is highly consistent with the spatial distribution of expressway density.(3)Expressway plays a significant positive role in promoting the economic development of counties in Fujian.Moreover,the spatial spillover effect of expressways on the level of economic development of counties in the province is more prominent than the direct effect.However,compared with ordinary highways,the direct and indirect promotion effects of Fujian's expressway on the development of the county economy are weaker.(4)The promotional effect of Fujian's expressway on county economic development has spatial heterogeneity.The province's expressway plays a weaker role in the economic development of western and southern counties,but a stronger role in advancing the economic development of eastern and northern counties.
expresswaycounty economic developmentspatial effectspatial heterogeneityFujian province
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