中心城市辐射作用下的安徽省经济空间格局时空演变研究

Temporal and Spatial Evolution of Economic Spatial Pattern of Anhui Province under the Radiation of Central Cities

文章采用改进的引力模型,分析安徽省城市与县域经济联系的时空特征,考察中心城市辐射作用下的经济空间格局的演变。研究表明:安徽省三大区域中心城市的辐射作用具有明显差异且差异不断扩大,皖中地区合肥的辐射作用最强,皖南地区芜湖和马鞍山的辐射作用稍弱,皖北地区蚌埠和阜阳的辐射作用最弱;经济联系围绕由中心城市组成的纵向经济带依次向外减弱,圈层结构逐渐形成;各县与中心城市的联系程度和自身经济实力具有差异性,可划分为不同类型。基于此,提出促进区域协调发展,加强皖北中心城市建设和分类发展县域经济的建议。

This paper uses the improved gravity model to analyze the temporal and spatial characteristics of economic linkage between urban and county areas in Anhui Province,and to examine the evolution of economic spatial pattern under the radiation effect of central cities.The results show that the radiation effects of the three regional central cities in Anhui Province are obviously different and the differences are constantly expanding.The radiation effect of Hefei in central Anhui is the strongest,that of Wuhu and Maanshan in southern Anhui is slightly weaker,and that of Bengbu and Fuyang in northern Anhui is the weakest.The economic linkage gradually weaken outwards around the vertical economic belt composed of central cities,and the circle structure gradually forms.The degree of contact between the counties and the central cities and their own economic strength are different so that counties can be divided into different types.Based on this,it is proposed to promote regional coordinated development,strengthen the construction of the central city of northern Anhui and develop county economy by category.