Abstract
Urban green space plays an important role in beautifying the environment, improving the quality of life of residents, and promoting sustainable urban development. Rapid urbanization has led to great changes in the spatial structure and layout of urban green space. It is urgent to put forward the sustainable development strategy of green space through the research on the change of urban green space. Based on the geographical spatial differences of urban green space and integrating the factors of economy, society, industry, land use, and the environment, we constructed a research framework of “space-supply-demand” integration of urban green space by GI and geodetector methods, and we conducted an empirical study on the spatial–temporal changes of urban green space and its driving mechanism in prefecture-level cities along the Yangtze River Economic Belt in China. First, the urban green space along the Yangtze River Economic Belt is concentrated in spatial distribution, while uneven development appears in urban greening among the zones. Second, the influence of different factors on urban green space change varies greatly and can be divided into three types: key factors, important factors, and auxiliary factors. The driving mechanism of the spatial distribution of urban green space supply and demand is quite different, but urban population and commercial service facilities land are their key influence factors, having a comprehensive influence on the spatial–temporal changes of urban green space. Third, the factors are classified into three categories of high, medium, and low levels according to the mean of interacting forces; in particular, the factors of per capita GDP, utility land, industrial smoke (dust) emissions, and other factors have a very strong interactive effect with other factors. Fourth, according to the spatial distribution characteristics of urban green space and its driving mechanism, this paper puts forward planning and policy suggestions, providing reference for other areas to deal with the green space change.
Highlights
The urban green space (UGS) is an important part of urban ecological space, which can provide important ecosystem services (ESs)
In the stock urban green space presents a concentration with the gra
0.6, indicating that the distribution of urban green space is concentrated decreasing with the development of the city
Summary
The urban green space (UGS) is an important part of urban ecological space, which can provide important ecosystem services (ESs). It can better air quality [1] and lower the surface temperature [2–4] to improve the urban thermal environment and cope with climate change [5,6], while reducing runoff [7] and controlling flood [8], to improve the sustainability of ecological environment; it can help protect biodiversity [9]. Improve the sustainability of the ecosystem [10]; in addition, it can promote the health of residents [11] and increase social cohesion [12,13], to improve the quality of life of residents and increase the sustainability of living environment [14].
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