Study on Carbon Reduction Capacity of Sponge City Facilities

The rapid development of urbanization in China leads to the continuous decrease of surface permeability, the continuous increase of carbon emissions, and the increase of flood disasters and nonpoint source pollution. The sponge city facilities can increase surface permeability and green area, and reduce surface runoff, nonpoint pollution, and carbon emissions. In this study, the carbon reduction mechanism of different sponge city facilities such as green roof, permeable pavement, raingarden, and bioretention cell was analyzed, and corresponding calculation model of carbon reduction capacity was constructed. The life cycle assessment was used to compare the carbon emissions of the sponge city facilities with the traditional development. The results are helpful to optimizing the layout of sponge city facilities and realizing the goal of carbon neutralization in China as soon as possible.