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Water 2018, 10(5), 623; https://doi.org/10.3390/w10050623

Objectives and Indexes for Implementation of Sponge Cities—A Case Study of Changzhou City, China

1
Changzhou City Planning and Design Institute, Changzhou 213003, China
2
School of Civil Engineering, Southeast University, Nanjing 210096, China
3
Southeast University-Monash University Joint Research Centre for Water Sensitive Cities, Nanjing 210096, China
4
CRC for Water Sensitive Cities, Clayton, VIC 3800, Australia
*
Author to whom correspondence should be addressed.
Received: 12 January 2018 / Revised: 15 March 2018 / Accepted: 19 March 2018 / Published: 10 May 2018
(This article belongs to the Special Issue Sponge Cities: Emerging Approaches, Challenges and Opportunities)
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Abstract

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 runoff and 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 runoff control are the key objectives to encourage the use of non-conventional water resources. View Full-Text
Keywords: Yangtze river delta; sponge cities; water ecology; water resources; urban flood risk Yangtze river delta; sponge cities; water ecology; water resources; urban flood risk
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Li, Z.; Dong, M.; Wong, T.; Wang, J.; Kumar, A.J.; Singh, R.P. Objectives and Indexes for Implementation of Sponge Cities—A Case Study of Changzhou City, China. Water 2018, 10, 623.

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