Abstract
Water environmental safety assessment and water pollution control are the key points embodying the construction of human ecological civilization and an important step in promoting the construction of beautiful China. The Haihe River Basin is currently one of the regions with the highest level of water resources utilization and the most scarce water resources in many river basins in China. This paper constructed an evaluation index system of water environment security, which includes three first-level indicators and 15 second-level indicators. The dynamic change process of water environment security in Haihe River Basin in 2006-2017 was evaluated by the improved comprehensive evaluation method and the entropy weight method. And the main factors affecting water security in the basin were identified. It is found that the main factors of water environment security in Haihe River Basin are water resources per capita, forest coverage and water consumption per capita, and the countermeasures. Some suggestions for improving water environment security in Haihe River Basin were put forward.
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