由于城市化进程加快，城市规模不断扩大，城市中心的人口、工业、商业与住宅

Due to urbanization, expanding cities, population, industry, urban centers of <br>commercial and residential and other factors continue to migrate to the surrounding area, looking for a broader space for development, with the majority in urban fringe <br>rural areas of the connecting portion, the emergence of a urban gradual transition elements, penetrate each other, interaction, a variety of edge effect <br>should be apparent, functional complementation strong, different from the properties of typical city, there are different from a new geographic units typically rural <br>- urban fringe. Urbanization theory, the definition of the urban fringe of the "suburban areas", "urbanized <br>areas", "urban fringe" and so on, these definitions have meaning, but contains its basic geographic concepts they express similar. <br>Urban fringe studied in this paper refers to the surrounding urban area, between urban and rural areas between urban and rural areas in the traditional sense of <br>the transition zone, social, economic and many other elements of urban and rural collide with each other, interaction and mutual penetration of the handover area .

As the urbanization process accelerates and the size of cities expands, the population, industry,<br>Commercial and residential elements continue to move to the surrounding area, looking for a broader space for development, in the urban fringe with the vast number of<br>The connected parts of rural areas, the emergence of a gradual transition of urban elements, mutual penetration, interaction, various marginal effects<br>A new regional unit that should be obvious, strongly complementary and different in nature from typical cities and different from typical rural areas.<br>- Ministry of urban-rural integration. In the theory of urbanization, the definition of urban-rural integration department is "urban near-suburb" and "urbanization"<br>Regions, urban fringeareas, etc., these definitions have their own meanings, but their expression of the inclusion and its geographical concepts are basically similar.<br>The urban-rural integration department studied in this paper refers to the urban-rural area around the built-up area, between the city and the countryside in the traditional sense.<br>The transition zone is a transition area where many factors, such as urban and rural society and economy, collide, interact and penetrate each other.

Due to the acceleration of urbanization and the continuous expansion of urban scale, the population, industry and<br>Elements such as business and housing are constantly moving to the surrounding areas, looking for a broader development space in the urban fringe and the vast<br>In the connecting part of rural areas, there is a gradual transition, mutual penetration, interaction and various marginal effects of urban elements<br>It should be a new regional unit which is distinct from typical cities and rural areas with strong complementary functions<br>- urban rural fringe. In the theory of urbanization, the definition of urban-rural junction includes "suburban area" and "urbanization"<br>These definitions have their own meanings, but their connotations and geographical concepts are basically similar.<br>The urban-rural junction studied in this paper refers to the urban-rural area around the urban built-up area, between the urban and rural areas in the traditional sense<br>The transition zone is a transition area where many elements of urban and rural society and economy collide, interact and permeate each other.