Comprehensive Evaluation on Urban Water Security Based on the Novel DPEBLR Concept Model and the Cloud Matter-Element Model: A Case Study of Chongqing, China

Urban water security problems such as scarcity, pollution, and flood disasters have restricted the sustainable development of cities. In order to scientifically evaluate urban situation, this study combined DPSIR (driver, pressure, state, impact, response) model HEVD (the hazard disaster-causing factors, vulnerability disaster-affected bodies, instability disaster-pregnant environment, population loss) propose a new conceptual framework for DPEBLR insecurity-affected body, loss, response). Based on framework, 35 indicators were selected establish an evaluation index system. solve problem randomness fuzziness boundary values classification levels, cloud matter element was applied. Chongqing used example verification, results showed that status City improved from 2011 (?) 2019 (?). This indicates ecology restoration project, centralized source protection supply water-saving society transformation, drought prevention system construction project implemented in has achieved significant results. However, still faces control cannot meet speed development. The government should slow down urbanization allow be ready before area is occupied. addition, awareness conservation industrial use been formed, citizens’ domestic enhanced future.