GEOGRAPHICAL RESEARCH ›› 2018, Vol. 37 ›› Issue (9): 1704-1713.doi: 10.11821/dlyj201809004

• Special Feature on Dongting Lake Region • Previous Articles     Next Articles

Low-impact urban development mode based on waterlogging security pattern

Sheng JIAO1(), Jingyan HAN1, Min ZHOU1,2, Yong CAI1, Zongwei HAN1,3, Bei LI1,2   

  1. 1. School of Architecture, Hunan University, Changsha 410082, China
    2. School of Architecture and Urban Planning, Southwest Minzu University, Chengdu 610041, China
    3. Department of Tourism and Geography, Tongren University, Tongren 554300, Guizhou, China
  • Received:2018-05-09 Revised:2018-07-24 Online:2018-10-22 Published:2018-10-22
  • About author:

    Author: Shi Zhenqin (1988-), PhD, specialized in regional development and land space management in mountain areas. E-mail:

    *Corresponding author: Deng Wei (1957-), Professor, specialized in mountain environment and regional development.



The main causes of urban waterlogging are decrease of urban storage land, the spillway network fragmented by construction land, overlap of stormwater storage and construction land, and so on. This paper, based on the three levels of substrate (source of runoff), corridor (runoff pathway) and patch (confluence land), attempts to set up a low-impact urban development mode to absorb extreme storm water through its inherent storage capacity of natural hydrological system: Suyuyuan, a typical area of Changsha in southern China was taken as an example to build the low-impact development mode by spatial analysis tools ArcGIS and in hydrological analysis module in soil conservation service (SCS) based on geomorphologic and hydrometeorological data. The waterlogging security pattern was built according to the flood submergence scope and runoff path simulation of extreme rainfall. According to the construction target of sponge city with annual runoff control rate of 85%, the source control water volume and corridor control water quantity were determined respectively, and then the patch control water quantity was obtained. It is estimated that the area should preserve 228.2 ha stormwater storage regulation patch and 1.075 million m3 controlled water volume, and 51.5 ha waterlogging corridors and 0.101 million m3 controlled water volume after the development. This method can provide a reference for exploring the new model of sponge city construction based on extreme climate waterlogging prevention and control.

Key words: waterlogging security pattern, waterlogging corridors and patches, low-impact development mode, Suyuyuan