Study On Spatial Evolution Of The Small Watershed Of Human Settlements In Northern Shaanxi Loess Plateau Gully Region

Loess Plateau is the world's unique natural geographical region, the birthplace of civilization is one of the Chinese nation, with 5,000 years of history of human civilization. The original human population, evolved into today's towns and villages, living environment here left over from the more comprehensive, stable traces the evolution. Loess Plateau hilly region is typical of the Loess Plateau landscape, but also the distribution of small valley one of the most intensive areas. Watershed Habitat environment unit is the Loess Plateau region living environment, the basic pattern unit, implies a precious living environment of the original gene. However, in recent years, due in northern Shaanxi coal, petroleum, natural gas, energy development and utilization of the strong, in northern Shaanxi region to speed up the process of urbanization, the original living environment facing extensive intervention outside.In the relevant theoretical research dissertation on the basis of northern Shaanxi living environment for the evolution process of carding, be roughly divided into four stages of evolution. From the spatial distribution, spatial structure and shape of space, natural features, space links, socio-economic, landscape features, cultural customs, such as in-depth understanding of the Loess Plateau in northern Shaanxi gully region on the Human settlements of the basin characteristics, and on this basis, through Habitat for small watershed environment space form factors affecting the evolution of a more in-depth understanding of small watershed living environment of space shape the evolution of an internal mechanism to reveal living environment of space shape the evolution of the law.Theoretic from the Loess Plateau in northern Shaanxi in the context of rapid urbanization start of a city in northern Shaanxi region of the causes and trends. Guided small watershed living environment of space shape the dynamic evolution is due to a variety of papers focusing on urbanization and public service facilities guided by the space evolution model. Finally, various models of integration, build the future of small gully region of the Loess Plateau Watershed living environment of space suitable for the evolution of the three models.