Social Network Analysis over the Process of Economic Integration of City Belt in Wanjiang
用引力模型计算皖江城市带城市间经济联系值，再用社会网络分析法构建并分析经济联系网络，发现城市间联系紧密、围绕主要城市、存在层级结构和四个小团体，但有一体化趋势。
With the rapid development of social economy,space economic contacts and optimization among cities in one region has become a hot research topic.Accurate determining and measuring economic relationship among cities can better understand the economic structure of the region.This paper calculates the value of economic contacts among cities in city belt in Wanjing by the gravity model,and constructs and analyzes the economic contacts network using social network analysis method.The result shows that the degree of economic contacts among cities in city belt in Wanjiang is high,economic contacts are mainly around major cities,there are obvious hieratical structure and four small groups,but a trend of economic integration exists in city belt in Wanjiang.Lastly,it was put some suggestions to promote the development of cities in city belt in Wanjiang.