Search

A water source vulnerability assessment index system based on the driving force-pressure-state- impact-response-management (DPSIRM) model is established, comprehensively considering the economy, society, resources, environment, ecology and other influencing factors of urban water resources in plateau basins. The entropy method is used to weight each evaluation index, and the set pair analysis and obstacle degree model is used to evaluate the water resources vulnerability of the Yunlong Reservoir water resources in Kunming from 2014 to 2019.The results show that the vulnerability of Yunlong Reservoir's water resource was strongly vulnerable in 2014, and moderately vulnerable from 2015 to 2019. The confidence value of its middle-level vulnerability has been increasing year by year, and the vulnerability of water resources has gradually decreased, indicating that the implemented water resources management policies have achieved results. Judging from the diagnosis results of the obstacles in the various subsystems of the evaluation model, the pressure, status, and influence subsystems' obstacles played a dominant role from 2014 to 2015, the influence and response subsystem played a leading role from 2016 to 2018, and the pressure and influence subsystem played a leading role in 2019, and subsystem obstacles have a greater impact. It is suggested that the sound development of water resources security should be promoted from the perspective of the system theory, the water quality management and control of water source areas should be strengthened, and the comprehensive development and governance of water resources should be strengthened. [ABSTRACT FROM AUTHOR]