Systematic methodology and practice of a co-governance program for five waters in a typical area of China

Abstract

A co-governance program for five waters (CPFW), including sewage treatment, flood prevention, drainage, water supply and saving, is an innovative concept in water resource management. It includes current and near future system projects and advanced management policies for water utilization and protection. In this paper, the scientific connotation of CPFW is explained by multidisciplinary theory. Based on current guidance and technology, evaluation targets and water management countermeasures are specified. Combining hydraulic engineering and their characteristics, operable approaches for CPFW are suggested for projects' designation and construction. These approaches of CPFW are applied in a typical area. Systematic projects are composed of sewage interception projects, efficient water supply projects and hydraulic projects with ecological engineering. With the guidance of CPFW, all projects are connected together and their integrated benefits are evaluated in water saving, sewage drainage, increase in environmental capacity and ensuring security. The results show the CPFW is valuable and available both in theory and in practice.

Water diversion and allocation for typical confined polder river-net in Taihu Basin

“…The drainage system in the plain river network area is of great importance for the supply of water, the health of river-lake ecosystems and the resistance of flood and drought, which is the lifeline of regional development (Xie et al, 2012;Xiang et al, 2015). Nowadays, with the increasing acceleration of urbanization, on the one hand people put forward higher requirements on water quantity, water quality, flood control, domestic water and ecological environment water (Sun et al, 2014).…”

“…Faced with such a stark reality, the Ministry of Water Resources (MWR) put forward a new concept of an Interconnected River System Network (IRSN), which currently has been regarded as a new water control strategy and attached great importance for water supply in a new situation (Li et al, 2011;Xiang et al, 2015). Therefore, in this paper, the structure and function of the river water system interconnection is discussed, which will be of great importance to the sustainable utilization of urban water resources, the healthy development of economic and society, and the construction of ecological civilization (Partheniades, 1965a(Partheniades, , 1965b.…”