| In the process of rapid development of more than 40 years of reform and opening up,with the promotion of industrialization as the growth engine,China has formed a growth-oriented development model characterized by the growth of economic indicators as the first priority and the rapid expansion of urban land.However,as China enters the new normal of economic development,under the new development pattern of domestic circulation as the main body and domestic and international double circulation mutual promotion,the problem of domestic urban shrinkage has become the difficulty and challenge that China ’s new urbanization strategy will face in the future,which has attracted the attention of the central and local government departments.In the context of China,the phenomenon of urban shrinkage in the old industrial base of Northeast China is the most representative.At the same time,the shrinkage phenomenon with resource-based cities as the main body is the main feature of Northeast China that is different from other regional shrinkage in China.It is the ’ top priority ’ of shrinking urban governance in China.The research contents are as follows :(1)dentification of the characteristics of resource-based shrinking cities in Northeast China.Firstly,70 county units of resourcebased cities in Northeast China are defined as the research object.Secondly,from the perspective of multi-dimensional comprehensive evaluation,combined with the characteristics and laws of the development of resource-based cities in Northeast China,the evaluation index system of the shrinkage level of resource-based cities in Northeast China is constructed from the three dimensions of population,economy and society,and the comprehensive measurement is carried out.Finally,according to the shrinkage evaluation results of different cities,it is found that the resource-based shrinking cities in Northeast China show the spatial and temporal evolution characteristics of gathering along the Harbin-Changchun-Shenyang line and spreading vertically,migrating from south to north and mainly distributing around the provincial capital cities and along the border areas.(2)The influencing factors of resource-based shrinking cities in Northeast China.Firstly,the qualitative analysis of the influencing factors of resource-based shrinking cities is carried out from the external and internal perspectives.Secondly,the panel regression model is used to quantitatively analyze the influencing factors,and a total of 18 indicators from six dimensions of economic development level,geographical location conditions,natural environment characteristics,industrial development characteristics,relevant security policies and urban construction level are selected through collinearity test to construct the index system of influencing factors of resourcebased shrinking cities in Northeast China.Finally,according to the estimation results of the model,it is found that the level of foreign trade,the level of foreign capital utilization,the degree of location advantage,the degree of transportation convenience in the external influencing factors and the characteristics of industrial agglomeration,the level of science and education security,the level of medical security,the level of urban environment and the level of ecological response in the internal influencing factors are the main reasons that affect the urban population index and lead to the contraction and development of resource-based cities in Northeast China.(3)The formation mechanism of resource-based shrinking cities in Northeast China.First of all,based on the complex adaptive system(CAS)theory,it is clear that the shrinking city and its development model are in line with the basic characteristics of the complex adaptive system,which can be seen as an in-depth analysis using the CAS paradigm.Secondly,it is clear that under the stimulation of the internal and external environment of the shrinking system of resource-based cities in Northeast China,the main signs of capital power,social security power,public space vitality,environmental carrying capacity and innovation attraction have been formed,and the system building blocks formed under the guidance have been formed.Through different combinations,a new internal model of the city has been formed,and the formation mechanism of the continuous outflow of human-centered development elements within the system has been continuously squeezed.Finally,based on the research conclusions of evolution characteristics and formation mechanism,the development strategy of resource-based shrinking cities in Northeast China is proposed.(4)The overall planning of Jiaohe central urban area in the context of contraction.First of all,from the three aspects of population,economy and society,this paper analyzes the dilemma of shrinkage development in the central urban area of Jiaohe City.Secondly,it puts forward the overall planning strategy of Jiaohe central urban area in the context of contraction,and puts forward the overall urban design strategy and design guidelines of green intensive industrial park,low-carbon friendly living space,shared series public space,watergreen through-city ecological corridor and multiple composite traffic system.Finally,based on the overall planning of Jiaohe ’s central urban area in the context of contraction,the corresponding implementation mechanism and guarantee strategy are proposed. |