Research On The Spatial Evolution Of The City Group In Jingjinji

With the development of globalization,informatization,rapid urbanization,city competition can not simply rely on the local resources and local market,taking the industrial cluster as the basis for development,is closely linked,can realize the complementary function and spatial structure of compact city group city has gradually become the subject of the competition,how to realize the city within the city group cooperation has become an important research topic in the development of regional economy.The development background of the current service-oriented society,more and more serious constraint of resources and environment,production service industry is developing rapidly,knowledge-based services especially producer services contribution in the economic development of continuous improvement,is gradually becoming a source driving the development of regional industry and economic development.At present,the Beijing Tianjin Hebei collaborative development strategy has risen to the strategic planning at the national level,countries also proposed to build the capital as the core of the "Beijing Tianjin Hebei world-class city group,so it is very important for the development of Beijing and Tianjin city group,the development of producer services in the visual angle of the development of producer services to in the process of Beijing and Tianjin city group space evolution,and through empirical analysis of space between each city of Tianjin city group,so that Beijing and Tianjin city group space evolution.Firstly,using the method of literature study,reading a lot of relevant literature at home and abroad,the relevant content to get the development of producer services and its development for the city,city group with enough space related operation way,and analyzed the.Secondly,in the review on the development status of Beijing Tianjin and Hebei city group,and sort out the basic mechanism of Beijing Tianjin Hebei production service industry through the three dimensions of industry,employment and traffic impact of Beijing and Tianjin city group the spatial evolution of,and the corresponding empirical analysis.In the empirical analysis,this paper through the statistical yearbook of search related city,find the data of 2000-2014,the model and the comprehensive evaluation of city level flow center model,gravity model,model of city Tianjin city group classification,the economic contact intensity,city flow intensity measurement and analysis.The final result shows the strength and direction of the spatial relationship between Beijing and Tianjin city group in the city.ArcGIS software used to measure the results of the graphical,easy to analyze and understand the results of the study.In the empirical analysis is completed,this paper argues that the present development of Beijing Tianjin Hebei Urban Agglomerations in each city of productive service industry still exists serious gradient difference,it is because of this gradient,affecting the industry,employment and traffic pattern of Beijing and Tianjin city group,which contributed to the continuous evolution of space Beijing and Tianjin city group the space also affects the function division of Beijing and Tianjin city group.In the city groups in the grade of each city,can also see that the current level of development of Beijing Tianjin Hebei Urban Agglomeration of city classification and basic production services fit,Beijing as a central city,the development of producer services in the most mature,while Tianjin and Hebei bear with Beijing and Tianjin city group two Tangshan,Baoding,central,Cangzhou three center,the other four City center.In the economic ties between the city,on the whole,with the passage of time,economic ties between Beijing and Tianjin city group in the city has increased significantly;in the ability of external radiation,Beijing and Tianjin city group’s overall external function is still not high,the city of Beijing and the outgoing radiation ability is obviously a huge gap.In a series of analysis,finally from the time dimension of view,the overall level of spatial contact intensity of Beijing and Tianjin city group in the city is relatively low,only Beijing and Tianjin more than the average level,the gap between the city and the increased;judging from the spatial dimension,spatial distribution of Beijing and Tianjin city group in the city relatively stable,basically established the circle structure in Beijing and Tianjin as the center,and the development trend of the South Development center.