Accessibility Analysis of Urban Green Parks:a Case Study of Chengdu City Center
With the construction of park city,green space park plays a more and more significant role in promoting urban sustainable development.Urban residents also gradually take urban green parks as an important choice for recreation and play,the accessibility of green parks is a major indicator of urban life quality.To this end,five urban districts in the center of Chengdu will be taken as the research area to study the spatial distribution of park green space and residents'daily travel.Demographic yearbook and multi-source remote sensing data were used to spatialize population data,and Ga2SFCA(Gaussian two-step mobile search method)was used to analyze the accessibility of green parks in five urban districts of Chengdu.At the same time,the spatial autocorrelation analysis of the results of green space accessibility was carried out to study its spatial distribution pattern.The results show that the population distribution in the downtown area of Chengdu is multi-center and multi-aggregation,and the accessibility of green parks is higher in the surrounding areas and lower in the center.The clustering model of population spatial distribution and green space accessibility is explored,the paper provides reference advice for the future green park space planning.
spatial accessibilitygreen parkrandom forestpopulation spatializationGauss two-step mobile search method