Objectives and indexes for implementation of sponge cities - A case study of Changzhou City, China

Zhengzhao Li, Mingjing Dong, Tony Wong, Jianbin Wang, Alagarasan Jagadeesh Kumar, Rajendra Prasad Singh

Research output: Contribution to journalArticleResearchpeer-review

22 Citations (Scopus)


This paper presents a framework of objectives and indexes for sponge cities implementation in China. The proposed objectives and indexes aims to reflect whether the city is in accord with the sponge city. Different cities have different objectives and indexes as each city has its own geologic and hydrogeological conditions. Therefore, the main problems (e.g., water security and flood risks) in the central urban area of Changzhou city, China were evaluated scientifically. According to the local conditions, four objectives and eleven indexes have been made as a standard to estimate the sponge city and set a goal for the city development to reach the goal of sustainable urban development. The strategy of process control was implemented to improve the standard of urban drainage and flood control facilities, regulate total runoffand reduce storm peak flow, and the ecological monitoring of the function of the rivers and lakes. The objectives of sponge cities include water security, water quality improvement, healthy water ecosystems, and water utilization efficiency. Urban flood prevention capacity, river and lake water quality compliance, and annual runoffcontrol are the key objectives to encourage the use of non-conventional water resources.

Original languageEnglish
Article number623
Number of pages14
Issue number5
Publication statusPublished - 10 May 2018


  • Sponge cities
  • Urban flood risk
  • Water ecology
  • Water resources
  • Yangtze river delta

Cite this