Evaluation of China industrial water efficiency based on DAGF method

摘要

Raising the efficiency of industrial water has become a hot topic in economic development and environmental governance. Based on DAGF method - a combination of Delphi method, analytic hierarchy process, gray relational analysis, and Fuzzy comprehensive evaluation - this paper evaluated the industrial water efficiency of 22 samples selected from China. The main conclusions are as follows: the overall efficiency of industrial water use in China is good but unbalanced, and the gap between regions is relatively large. Compared with areas which have resource-based water shortage and of which the economy is relatively backward, industrialized areas are more prone to industry water inefficiencies. Finally, according to the evaluation results, the following suggestions were put forward to improve the efficiency of industrial water use: the government should strengthen its guidance through establishing incentive and restraint mechanisms and enterprises should improve industrial water efficiency by developing water-saving technologies and accelerating the transformation of production mode.