Study on utilization efficiency of water resources in Shijiazhuang City

From the perspective of input and output, using agricultural water, production water, domestic water, COD emissions, labor input, and investment in fixed assets as input indicators and GDP as an output indicator, a DEA model was established to evaluate the utilization efficiency of water resources in Shijiazhuang City for 2010-2016. The results showed that the efficient yearsfor DEA account for 28.6% in the seven years, and the input and output reach a relatively optimal status. Besides, the inefficient years for DEA account for 71.4%, and there exist the situation of redundancy, waste of resources and the insufficient factor utilization efficiency. On the whole, the utilization efficiency of water resources in Shijiazhuang City has been at a low level with a fluctuation, which can be improved through the redundancy analysis results of DEA, so that the optimal allocation of resource inputs can be achieved. As a result, the utilization efficiency of water resources will be improved.