The Evaluation And Spatial Differentiation Research Of Livable Beijing’s Natural Environment

Urban natural environment is the most intuitive symbol and embodiment of livable city, and an important guarantee for the city of sustainable development. This article based on the theoretical research, methods and evaluation criteria of livable city, utilization statistical methods such as correlation analysis, principal analysis, cluster analysis, coupling analysis and spatial interpolation, conducts the contrast analysis from the core elements of natural environment (green space、waterr、air) between subjective and objective data. Using Arcgis to make spatial analysis, and performing the spatial variation character of natural environment comfort through thematic maps in space. Carries on a comprehensive analysis of the subjective and objective data for livable Beijing natural environment comfort evaluation conclusion, and put forward countermeasure suggestions.Empirical research indicated that:(1) Beijing natural environmental comfort overall poor, air quality and water environment is the need to focus on improvement in future.(2) The natural environment comfort of the spatial difference research to indicate that:Beijing natural environment comfort presents the center on the law of diminishing to the periphery, which Huangcun’s comfort is the worst.(3) The comfort of natural environment classification analysis shows that60%of the streets within the study area belong to a higher objective and high subjective streets, the residents for the construction of the natural environment or in the affirmative. The subjective low and objective high streets are mainly located on the fragmented regions within the Fifth Ring and northeast and southwest out of the Fifth Ring. And the subjective high and objective high streets are mainly distributed in the Fifth Ring outside.(4) Coupling analysis between subjective evaluation and objective environment indicated that:the natural environment comfortable subjective evaluation according to comfort from high to low a divided into one、two、three and four, four areas, with the comfort of subjective reduced, objective evaluation of the livability better class Ⅱ livable area by a comfortable46%to11%of the four regions, the livability worst class Ⅲ livable proportion gradually increased to a comfortable degree of38%to89%of the region of four satisfaction.(5) In the sub-index, green comfort showing the law of diminishing from the center to the periphery, air quality showing the law of diminishing from east to west, water evaluation of higher regional concentration in the peril-urban areas.Through the above conclusion provides countermeasures for the Beijing urban residential natural environment planning and construction, real estate development and construction, for livable Beijing construction lay the foundation.