China-Japan Roof Greening Plan

Quick answer：

Roof greening in China and Japan involves the application of greenery on rooftops to enhance urban sustainability. This practice includes the use of various types of plants, soil systems, and design considerations to create functional and aesthetically pleasing green spaces. Both countries have unique approaches to roof greening, reflecting their cultural and environmental values. In China, roof greening is often promoted as a means to improve air quality and reduce urban heat island effects, while in Japan, it is also used for disaster prevention and to create tranquil spaces within densely populated areas.