The Research Of The Regional And Spatial Structure Of The Suburban Forest Park

In recent years,a group of forest parks have emerged in the suburb of large and medium-sized cities. The forest parks are built on the basis of the forest resources, harmony and stability of the ecological environment,historical and cultural resources. According to the location,it is generally referred to as the suburban forest park. On account of close relationships with cities,suburban forest park has a unique advantage of convenient traffic conditions.And the natural forest resources have a certain value for landscape recreation.So the suburban forest park has gradually become the preferred leisure resort and widely favored by citizens. But the "suburban" has always been a fuzzy concept.This paper first proposed the method of combining with real GDP per capita, population density, transportation accessibility coefficient to calculate the scope of suburbs and constructed the model of defining suburbs. Firstly,real GDP per capita, population density and transportation accessibility coefficient will be measured. And then through the analytic hierarchy process (AHP), it is concluded that the weight of the above three factors. On the basis of the results, the scope of "suburbs" calculation model will be obtained. Using the model we marked off the theoretical scope of "suburbs" in 14 cities of Hunan province,and got the corresponding suburb radius. Based on 54 national forest parks,57 provincial forest parks,12 municipal forest parks,we analyzed the spatial pattern of the suburban forest parks in cities of Hunan province.We adopted AutoCAD, ArcGIS to analyze the spatial distribution of suburban forest parks. And then we calculated its dispersion and aggregation degree. So we could determine the distribution of suburban forest parks based on the analysis results.We analyzed emphatically the spatial pattern of suburban forest parks in Changsha city. Results show that the distribution of suburban forest parks in Changsha city possesses randomness and divergent. In the area, most of the forest parks are build near the city center. Outside the city, in the east and west direction,the suburban forest parks are not covered.And the city is far away with the planning ideas of embracing forest. Therefore, the construction of suburban forest parks should be risen from theory to practice.