Study On The Evolution Of Spatial Forms Of Small Towns In Qinba Mountain Area Of Southern Shaanxi Province

The development of urban space is a natural historical process.It has its own laws.It is important for the future development of cities and towns to excavate,summarize,and respect the laws contained in the evolution of the urban space.This article starts from the perspective of the spatial form of small towns and analyzes the evolution of the spatial form of townships in Baoan Town from 2006 to 2017.Based on this,it analyzes the spatial development of small towns in southern Shaanxi and proposes small towns in southern Shaanxi based on these issues The rational trend of spatial development,so as to explore the possibility of rational development of the spatial form of small towns in southern Shaanxi.This article is mainly divided into three parts:First,by exploring the formation and development conditions of small towns in the Qinba Mountains of southern Shaanxi,the specific characteristics of small towns in southern Shaanxi and the practical problems of spatial development are summarized.The development of small towns in southern Shaanxi takes natural geographic conditions as endogenous power,regional culture has a certain guiding role in its development,and economic and human settlement policies have a direct pulling and shaping effect on its development and form.Under this background,small towns in southern Shaanxi have the characteristics of small area,small population,and agriculture as the main format.At the same time,in the course of its development,it is also faced with problems such as the destruction of the relationship between mountains and rivers,the unreasonable spatial organization,and the lack of cultural awareness of style and so on.Second,by establishing a boundary-road network-plaque-public space analysis framework,using a combination of qualitative analysis and quantitative analysis,the "shape" and "quantity" characteristics of the spatial form of Baoan Town were analyzed to explore its form Evolution law.Studies have shown that the overall spatial form of townships has changed from diversified to simple and straightforward,the richness of the space has weakened,and the intervention of planning means has reduced the shaping effect of endogenous forces on the spatial form.Third,it was found that some problems in the process of spatial development made the development of small towns in southern Shaanxi unreasonable.First,the squeezing and encroachment of the edge of the town area made the internal space The natural environment is separated from each other;secondly,the lack of road network level makes the spatial organization of small towns loose and inefficient;again,the street space is the main communication space of the township,and its spatial diversity and mixed function reduce the new area of the township.Popularity is low;finally,the new public space system and functional incompatibility make the township's agricultural-based lifestyle unsustainable.Fourth,it is believed that in the future development of small towns in southern Shaanxi,they should follow the integrated boundary planning strategy,the construction of a smallscale road network system and the principles of building a diversified public space.A series of problems to improve its current space development.