Study On The Layout Of Urban Public Green Space In Chengde City

With the rapid development of economy and society,the layout system of urban public green space has received extensive attention.Chengde is located in the northeast of Hebei Province,is the political,economic and cultural center of the northern part of the north,has a long history and rich natural resources.Although the Chengde Mountain Resort and the eight outer temples and other series of historical garden and park,but the layout of the urban public green space system is not perfect,from the different angle of research and analysis of Chengde public green space layout of the system,and puts forward the optimal update strategy has important theoretical and practical significance.The status quo of public green space in Chengde as the object of study,the literature review,field reconnaissance,data calculation and,from the perspective of spatial form and structure,landscape ecological pattern,public green space service radius and accessibility analysis,put forward system of Chengde City public green space layout optimization strategy.Firstly,the spatial structure,landscape pattern and accessibility analysis are the important theoretical support of urban public green space layout.The spatial shape structure is based on point,line and plane,which is composed of the layout mode of the circular radial,the corridor network and the green heart.The landscape ecological pattern emphasizes the "patch,matrix,corridor" system,which focuses on the design strategy of patch and corridor.The reachability is supported by the theory of urban grid,the space can reach the theory,and the theory of the breaking point.Second,analysis of urban public green space in Chengde city.In terms of spatial structure,Chengde city public green space is a point,linear,surface and other morphological characteristics,the main problem is the layout of public green space system is not clear.In landscape pattern,the public green space in Chengde involves the macro indicators of landscape pattern,the landscape pattern system is not clear and so on.The number of patches need to be increased,and the structure of the corridor is more abundant.At the same time,the accessibility of public green space should be improved.Third,the layout optimization strategy of urban public green space in Chengde city.In terms of spatial structure,from the three aspects of the city,the central city and the main city,make full use of the city's surrounding environment,the city river water system,the traffic along the green,which constitute the background and framework of Chengde City,and combined with the Chengde city's landscape city and the development of the wedge city space structure.In the landscape pattern,the new types of urban patches 123,optimize the number of patches,size,shape,location.Through the corridor width and structure of management and control improve the ecological function of urban corridor.In the aspect of accessibility,the reasonable service radius of urban public green space in Chengde city is put forward by optimizing the road network,the nature of the land,the attraction of the green space,and the distribution of the population.The research of this paper is based on the development of urban public green space in Chengde,which has some theoretical and practical guidance.