Opportunities and challenges of the Sponge City construction related to urban water issues in China

Opportunities and challenges of the Sponge City construction related to urban water issues in China

XIA Jun;ZHANG YongYong;XIONG LiHua;HE Shan;WANG LongFeng;YU ZhongBo;

【期刊名称】《中国科学》 【年(卷),期】2017(060)004

【摘要】Waterlogging is one of the major water issues in most cities of China

and

directly

restricts

their

urbanization

processes.The

construction of Sponge City is an effective approach to solving the urban water issues,particularly for the waterlogging.In this study,both the urban issues emerged at the stage of rapid urbanization in China and the demands as well as problems of Sponge City construction related with the water issues were investigated,and the opportunities and challenges for the Sponge City construction in the future were also proposed.It was found that the current stormwater management focused on the construction of gray infrastructures(e.g.,drainage network and water tank) based on the fast discharge idea,which was costly and hard to catch up with the rapid expansion of city and its impervious

surface,while

green

infrastructures(e.g.,river,lake

and

wetland)were ignored.Moreover,the current construction of Sponge City was still limited to low impacted development(LID) approach which was concentrated on source control measures without consideration of the critical

functions

of

surrounding