淮海经济区县市经济联系的空间相互作用演化分析

The Spatial Interaction Evolution Analysis of Economic Relations between Cities and Counties in Huaihai Economic Zone

运用引力模型和社会网络分析等方法,以淮海经济区59个县市为研究单元,从强度、方向和格局三个方面,对2008~2017年淮海经济区经济联系的空间相互作用演化进行综合分析评价。结果表明:淮海经济区一体化程度不断加深;内部经济联系更加紧密,相互作用强度不断增强;经济联系具有显著的相邻区域指向性、中心指向性和交通指向性;相互作用格局鲜明,形成了范围稳定的东南、东北、西南和西北四大子群。

Using gravity model and social network analysis,this paper takes 59 counties and cities in Huaihai Economic Zone as the research unit,and makes a comprehensive analysis and evaluation on the spatial interaction evolution of economic relations in Huaihai Economic Zone from 2008 to 2017 from three aspects of strength,direction and pattern.The results show that the integration degree of Huaihai Economic Zone is deepening.Internal economic ties are getting closer and the intensity of interaction is increasing.Economic relations have significant directivity of adjacent regions,central directivity and traffic directivity.The interaction pattern is distinct,forming four subgroups with stable range:southeast,northeast,southwest and northwest.