Abstract
Abstract
The current urban climate disasters are frequent, decarbonization to mitigate urban climate has become an urgent task, and the carbon emission of China’s building operation stage is expected to peak in 2040, with carbon emission peaking at about 2.701 billion tCO2, which is seriously lagging behind China’s carbon peak target in 2030. Green roofs, as the “fifth façade” of buildings, account for about 20%-25% of the urban surface, and in the case of ground-level decarbonization strategies being limited, green roofs become a solution to reduce carbon emissions. In this paper, we review the existing literature, summarize the calculation methods for green roofs, outline the general process of these calculation methods, and analyze the carbon reduction pathways and the carbon reduction performance of representative plants planted on green roofs, and conclude that the implementation of green roofs has a significant contribution to the later stages of carbon peaking.