| The evolution of urban spatial form is a phenomenon of urban material space under the influence of multi-dimensional factors.Each city has its own characteristics of spatial form and spatial form evolution.The study of urban spatial form and evolution characteristics has enlightenment and guiding significance for the future development of the city.This paper selects the central urban area of Hejin as the research object,combs the urban development process of each stage of Hejin,and then qualitatively analyzes the spatial morphology characteristics of the old urban area of Hejin and each stage after the establishment of New China;quantitatively studies the evolution characteristics of urban spatial morphology after the establishment of New China,and reveals the influence and mechanism of multi-dimensional influencing factors on the evolution of urban spatial morphology.Finally,combined with the current situation of the city,the paper puts forward suggestions for the future development of urban spatial form of Hejin.The main research contents and conclusions are as follows.First of all,by combing the historical evolution and urban construction process of Hejin before the founding of New China,the old city of Hejin built in Yuan Dynasty is selected as the research object,and its spatial characteristics are summarized into four aspects: land use and spatial layout characteristics,interconnected natural landscape pattern,functional composite axis sequence,and "cross + scattered point" human spatial structure.This paper analyzes the influence and mechanism of various factors on urban space,and abstracts the mechanism of the evolution of urban space,such as the natural environment is not only the driving force but also the binding force,the driving force of political factors and the influence of ritual ideology,the fundamental driving force of economic factors and the cultivation of cultural factors.Secondly,according to the five aspects of administrative system evolution,social and economic development,urbanization level,urban construction land and urban planning,the urban development process after the founding of New China is divided into four stages.Qualitative research is adopted to summarize the urban construction process and spatial characteristics of each stage.Combined with the quantitative research method,this paper analyzes the evolution characteristics of urban spatial form of Hejin after the founding of New China.The evolution of urban external spatial form is characterized by the turning point of urban expansion speed in 1978,the acceleration of land use expansion driven by Shanxi Aluminum Plant and economic growth,the obvious "enclave" and axial expansion characteristics of the evolution of external form contour,and the different expansion modes of the two areas.The evolution of urban internal spatial form is characterized by dual center differential development,gradual improvement of urban functions,large proportion of industrial land,and multi center development trend.After the founding of New China,the paper analyzes the inheritance and dissolution of the spatial form of the old city of Hejin.Then,the paper analyzes the mechanism of spatial evolution after the founding of the people’s Republic of China from multi-dimensional influencing factors,and concludes that the evolution of spatial form is the material spatial evolution formed under the comprehensive mechanism of the traction and binding force of natural and resource factors,the control and driving force of political and policy factors,the main driving force of economic factors,the traction and binding force of road traffic factors and other factors.This paper analyzes the mechanism of spatial form evolution in different stages after the founding of New China and the degree to which the characteristics of urban spatial form are influenced by multi-dimensional factors.Based on the conclusion of the comprehensive study,some suggestions are put forward for the future development of urban spatial form of Hejin. |
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