Analysis and predication of urban water security: A case study of Chengdu City, China

Abstract

To investigate the sustainable state of the water resources in Chengdu, the pressure-state-response model was adopted to establish the index system of the water security, in which the index weights were calculated by the analytic hierarchy process. The comprehensive values of the urban water security in recent years have been calculated. The results showed that the water security level of Chengdu was grade IV from 2005 to 2013, which indicated a safe state. To ensure the coordinated development among the society, economy and environment, several suggestions were proposed. The water-saving consciousness of the public and the water-saving city could be improved through increasing the water-saving facilities and techniques. The environmental investment could be increased for improving the treatment rate of the municipal and industrial wastewater. The management and warning system could be improved to strengthen the ability of coping with the accidental problems relating to the water environment and water resources.