Optimization Of Large City Morphology

As the primate city of Ji Lin Province, Changchun has experienced city spreading development process after some dozens of years, now has formed the typical city pattern"spreading out the big cake". It makes the city function, such as commerce, handle official business, administration, traffic and so on, too much being assembled in the center of the city, but the periphery county area is the basically argricultural county, the economical development scale of which is too small, forming a sharp contrast to the key city. Changchun has not displayed the function of leading the periphery region, cities and towns well, and the massive funds, items as well as manpower are pouring into the key city. There are no lack of some subjective factors, such as the guidance of the policy and so on. Along with the city scope unceasing expanding and gathering of industry as well as the manpower, it will inevitably causes some large city problems, such as the worsening environment and prominent of the traffic block day by day, but the overseas city morphology pattern is certainly not invariable also, meanwhile the diverse pattern has given certain inspirations to the large cities in china. In that way, how to deal with the relationship between core and periphery, gathering and dispersing, and how to optimize the large city structure, strengthen the interaction between the large city and periphery region as well as how to lead the development of Changchun's surrounding county area will be the key points of this thesis.Based on this, this thesis synthetically uses some theories and methods of relative subjects, such as urban geography, economic geography, reginal economic geography , social geography and so on, furthermore, this paper has also discussed the evolution process of Changchun's concrete regional spatial morphology, and the problem of it.This thesis is mainly composed by three parts:The first part, make the concept and connotation of city morphology as well as the theory foundation of the research clear and put in order the domestic and external city morphology theory and development pattern.The second part, introduce the urban spatial morphology evolution process of Changchun, take Changchun for example to summarize the characteristic and problems of our country's large city morphology as well as the reasons which lead to this.The third part, give the methods of optimizing the Changchun's city morphology through anylysing.