Study On Accessibility Of Park Green Space In Main Urban Area Of Kunming

As an important part of maintaining urban ecological environment,park green space plays an important role in improving urban environmental problems,biodiversity and urban living environment.As a plateau lake city,kunming has a good ecological environment and abundant green plant resources.It is of great significance to study the accessibility of green space in parks in the main urban area of kunming and pay attention to the relationship between green space and residents’ well-being for the construction of urban living environment.Firstly,based on the theory of landscape ecology and accessibility network analysis,this paper analyzes the overall landscape characteristics and accessibility of park green space in the main urban area of kunming city.Secondly,the population center of gravity model is used to optimize the park green space pattern.Finally,the buffer analysis method was used to evaluate the new green space and the optimized results.It provides basis and reference for the construction and pattern optimization of the green space of the park in the main urban area of kunming.The research results show that:(1)the current situation of park green space from the park green space of each type of patch landscape characteristics,the distribution of park green space type is not balanced;There are obvious differences in landscape structure and fragmentation degree among different types of parks.There is little difference in the degree of neighborhood between patches of the same type of park green space.The structure and distribution of green patches in each administrative district are not balanced,and the landscape heterogeneity is obvious.(2)from the perspective of the overall accessibility of park green space,the overall walkability of the park green space in kunming is poor;The current park green space can not meet the needs of daily life of urban residents in the study area;The accessibility of park green space varies greatly among different administrative regions,and the spatial distribution of accessibility is uneven.The accessibility of different types of park green space is obviously different.(3)optimize the park green space pattern based on the population gravity model,and improve the accessibility of the park green space in the main urban area of kunming.(4)buffer analysis was used to buffer the optimization results and obtain the evaluation results.