Abstract
Urban parks provide multiple ecosystem services as an important element of the urban space and improve human health and wellbeing. This study used the Gaussian-based 2SFCA method to evaluate the spatiotemporal distribution of and changes in park accessibility within the Sixth Ring Road in Beijing over 15 years. The study also used bivariate correlation analysis to analyze the relationship between urbanization factors and park access. The results showed that the overall park accessibility in both quantity and proximity had increased from 2000 to 2015, but there were still certain areas (percentage) that had limited access to parks. The inequity of distribution in park accessibility had been detected accompanying the rapid increase in park quantity in 2015. Furthermore, the development of urban parks mismatched that of urbanization in terms of urban land increase. The correlation between accessibility changes and population urbanization is not significant. Proper urban green space planning based on the distribution of population density and urban land use is indispensable in avoiding the aggravation of inequity in the process of urban expansion. This study contributes to the assessment of the current park allocation efficiency and helps urban planners and policymakers make prompt adjustments in the rapidly urbanizing process.
Highlights
IntroductionUrban green spaces such as parks, street greenery, playgrounds, as well as those informal green spaces with spontaneous vegetation play an important role in improving the quality of life and wellbeing of urban residents [1,2]
We found that the accessibility of parks over 2 ha is mainly affected by urban land proportion in high-density cities like Beijing, while the population density is not a significant impact factor
This study evaluated the spatiotemporal distribution and changes of park accessibility using the Gaussian-based 2SFCA method within the Sixth Ring Road in Beijing over 15 years and the relationship between urbanization factors and park access was analyzed using bivariate correlation analysis
Summary
Urban green spaces such as parks, street greenery, playgrounds, as well as those informal green spaces with spontaneous vegetation play an important role in improving the quality of life and wellbeing of urban residents [1,2]. As important components of the green space, urban parks provide multiple ecosystem services such as heat island mitigation [3,4], air pollution purification [5,6], noise reduction [7], etc. Urban parks could provide a wide range of cultural ecosystem services for citizens, including leisure and recreation, aesthetic appreciation and education [8,9].
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