Evolutionary driving mechanism of greenspace in central Beijing City based on the PLSR model

ObjectiveThe greenspace composed of urban green space, farmland, woodland, wetland and water area is of great significance to ensure social harmony, economic efficiency, ecological comfort and living comfort, so as to maintain the sustainable development of the city. It is of great significance to clarify the dynamic change of landscape and its driving mechanism to guide the reasonable planning of green space in central Beijing so as to improve its large ecological environment.

MethodIn this study, the central Beijing City was taken as the research area, and four time nodes of 1992, 2000, 2008 and 2016 were selected to study the driving mechanism of green space evolution. The influence of social and economic factors, natural factors and policy factors on the evolution of greenspace was investigated by partial least squares regression analysis.

ResultPartial least-squares regression analysis results of social and economic factors and the evolution of regional area showed that the four influencing factors of regional gross output value, per capita GDP, permanent population and construction land area to the variable importance VIP value of the evolution of regional area were all greater than 1. Among the natural factors, the variable projection importance VIP value affecting the evolution of the area index of the type of plaques in various regions was less than 1.

ConclusionThe research shows that social economy is the direct driving force of the green space evolution in the central Beijing City, and the increase of population scale, the growth of regional economy and the adjustment of industrial structure are the important factors leading to the green space evolution. The influence of natural factors on the evolution of green space is relatively static and less obvious than that of social and economic factors. This study scientifically and rationally clarifies the key factors affecting the development of green space, and provides a reference for formulating reasonable and scientific policies on green space development and protection.