Speaker
Description
Equitably distributed urban green spaces, as an important component of environmental justice, can mitigate health inequalities; however, due to financial bias and gentrification, urban green spaces tend to be concentrated around neighborhoods of high socioeconomic status, while inequalities are more pronounced in urban public green spaces compared to private green spaces. Green space vitality can intuitively respond to the matching relationship between people's needs and the built environment, and has been incorporated into current research as a new perspective for studying spatial inequality; however, its measurement and identification face limitations such as difficult data acquisition, low precision, and inability to identify in real time. With the development of information technology, data based on location positioning offers the possibility to study green space vitality and has been supported by many scholars.
In this study, we used LBS data and satellite remote sensing data for accurate identification of urban green space vitality, choosing weekdays, weekends and holidays (covering all types of days in China). We used kernel density analysis and Moran I index to characterize the spatial and temporal differences in green space vitality and its distribution. Further, we constructed a correlation model between the spatio-temporal vitality of green space and the built environment of the green space and the structural characteristics of the user population, and discussed the nonlinear effects of the three, and proposed an optimization strategy for urban green space with the goal of spatial equity, and validated the above methodology through 32 park green spaces in Dalian, China.
It is found that spatial inequality is mainly manifested in high-vitality green spaces. In terms of time, women show “nighttime poverty” compared to men. In terms of age, spatial inequalities affect the use of green spaces by older people and children. Based on the above results, we optimize the low vitality green space through rational green space planning and optimizing green space plant allocation, and improve the spatial quality of the high vitality green space by improving the entrance space and activity space facilities, in order to achieve the goal of spatial equity. Suggestions are provided for green space equity planning.
| Keywords | urban green space, spatial vitality, public space, spatial equity |
|---|---|
| Best Congress Paper Award | Yes |
