Study on Three-Dimensional Greening Construction and Plant Collocation Model in Chongqing East Station

In order to improve the ecological benefits and configuration mode of three-dimensional greening, this study investigated the main three-dimensional greening plants in the main city of Chongqing through field research and literature collection. The survey results indicate that there are approximately 122 commonly used three-dimensional greening plants suitable for the Chongqing area. Among them, there are 32 trees, 37 shrubs, 46 herbaceous plants, and 7 vines. By obtaining the ecological benefits of common tree species in the region through literature, a comprehensive ecological benefit evaluation method was constructed to evaluate and rank the ecological benefits of 40 common green plants. Based on the comprehensive ecological benefit evaluation results, while meeting the requirements of usage and aesthetic functions, targeted new configuration modes are proposed for building roofs, three-dimensional greening under bridges, and slope greening.