China’s water security comprehensive evaluation and empirical analysis

Water security is related to the vital interests of the masses, and has great influences on country’s sustainable development. A water security comprehensive evaluation model was constructed in this paper. This model established an evaluation index system of water security, which included 4 levels, employed 3 criteria levels (water health security, water development security and water guarantee security) and had 48 indicators. With the entropy weight method, the weight of each index was determined. And the formula for water security index was also given in the model. Furthermore, using the macroscopical data from 2000 to 2014, this paper applied the water security evaluation model to assess the water security situation of China. The results showed that during the study period, water health security showed a fluctuant increasing trend, water development security presented a slowly rising trend and water guarantee security was improved at a rapid speed. However, it still did not reach the best standard of water security, and further efforts were still required to improve China’s water security.

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