Abstract:Mountainous cities have a large number of slopes, retaining walls and cliffs, which have the potential to expand the application of public three-dimensional greening space and form three-dimensional greening forms with the characteristics of mountain landscape. Taking the mountain city of Chongqing as an example, based on the construction and implementation of afforestation and beautification of slopes, retaining walls and cliffs in main urban area, five types of public three-dimensional greening are summarized, including steep slope greening for mountain ecological barrier protection, steep slope greening for river ecological bank protection, steep slope greening for ecological corridor along the road, steep slope greening for bridge interchange junction and steep slope greening for retaining wall and tunnel entrance. Through field visits and analysis of typical cases, the application scenarios, design modes, plant configuration suggestions and main additional benefits of five types of public three-dimensional greening were extracted, and the construction modes of Chongqing public three-dimensional greening were summarized.