Abstract
The efficient control of water usage is one of the core goals of the strictest water resources management system in China. Therefore, the objective and reasonable evaluation of the effects of implementing this system is crucial. Based on the natural and social water cycle theories and the mechanism of the influence of agricultural, industrial, domestic and ecological water utilization, this paper proposes an evaluation index system through the qualitative and quantitative analysis of external and internal factors affecting the efficiency of water usage. Then, a matter-element model is developed on the basis of game theory weight to evaluate the effects of the implementation of efficiency control measures for regional water usage. By calculating the comprehensive correlation, this model can directly indicate the level of regional water use efficiency control. The model is applied to water usage in Jiangxi Province for the period 2011–2014. The results indicate a gradual improvement in the efficiency of water usage in this province. The matter-element extension evaluation model is simple and practical, and the evaluation results are in agreement with the facts. In summary, this method can provide a new theoretical basis for controlling the efficiency of regional water usage.
Highlights
The development of water resources and their utilization are gaining global importance owing to the increasingly prominent imbalance between the demand for and the availability of water resources.As one of the countries facing a shortage of water resources, China established and implemented “the strictest water resources management system” in 2011, involving three management and control aspects: total amount of water usage, efficiency of water usage and limited pollutant carrying capacity of water function zones
Our research contributes to enhancing system construction, it offers a scientific basis for water management authorities and helps guarantee the implementation of the strictest water resources management system
Because of the different degrees of influence of the major factors affecting the efficiency of water usage, it is necessary to assign a weight to each major factor
Summary
As one of the countries facing a shortage of water resources, China established and implemented “the strictest water resources management system” in 2011, involving three management and control aspects: total amount of water usage, efficiency of water usage and limited pollutant carrying capacity of water function zones. Among these aspects, controlling the efficiency of water usage is a key means for realizing the sustainable development of water resources. This article evaluates the efficiency of water usage control objectively and systematically. Sustainable development of water resources can be realized
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