The Necessity Analysis and Idea Discussion of Sponge City Construction in North China
With the continuous advancement of urbanization in China, the area of forests, fields and lakes have been decreasing. Some cities face two problems which are waterlogging and water shortage. How to deal with water ecological problems? Experts and scholars have proposed to build “sponge city” and make full use of rivers, lakes, buildings, roads, green spaces to form a complete sponge which has good flexibility in responding to environmental changes and natural disasters. This paper analyzes the successful cases of sponge city construction in Potsdamer Platz in Berlin, Germany and Pingxiang City. It analyzes the necessity of building a sponge city in the northern region from alleviating water shortage, preventing flood disasters, strengthening water ecological civilization construction and improving urban drainage infrastructure. It also proposed "zoning management, system construction, policy support."