School of Management, Wenzhou Business College, Wenzhou 325035, Zhejiang, China.
School of Finance and Trade, Wenzhou Business College, Wenzhou 325035, Zhejiang, China.
Sci Total Environ. 2020 Mar 15;708:135128. doi: 10.1016/j.scitotenv.2019.135128. Epub 2019 Nov 21.
With the rapid economic growth and a large number of industrial production activities in China in recent years, the public has paid more and more attention to the improvement of environmental quality. Issues such as control of pollution in water and air resources, solid waste and noise, as well as energy use and alternative energy development, have received increasing attention. How to effectively manage and utilize precious water resources is a major issue for China to achieve sustainable development. The present study tried to the concepts of Data Envelopment Analysis (DEA) with slacks-based model (SBM) model under Constant Returns-to-Scale (CRS) technology (CRS-SBM-DEA) to find a solution, by estimating the total factor water usage efficiencies and sewage treatment efficiencies across Eastern, Central and Western areas in China. The results showed that, before 2007, the Eastern Area in China had the highest water usage efficiency, followed by the West Area and then the Central Area. After 2007, the Western area has gradually become the one with the highest water usage efficiency, followed by the East Area and then the Central Area. In addition, the empirical estimates also consider the impact of the social level. Through panel analysis, this paper finds that population pressure will significantly reduce the efficiency of water use in the region, and the government's actions can effectively boost the use and conservation of water resources.
近年来，随着中国经济的快速增长和大量工业生产活动的开展，公众越来越关注环境质量的改善。水污染和空气资源、固体废物和噪声控制、能源利用和替代能源开发等问题受到了越来越多的关注。如何有效地管理和利用宝贵的水资源是中国实现可持续发展的重大问题。本研究试图利用基于松弛的数据包络分析（DEA）概念和规模报酬不变（CRS）技术下的 SBM 模型（CRS-SBM-DEA）来寻找解决方案，以评估中国东部、中部和西部地区的全要素用水量效率和污水处理效率。结果表明，2007 年之前，中国东部地区的用水效率最高，其次是西部地区，然后是中部地区。2007 年之后，西部地区逐渐成为用水效率最高的地区，其次是东部地区，然后是中部地区。此外，实证估计还考虑了社会水平的影响。通过面板分析，本文发现人口压力会显著降低该地区的用水效率，而政府的行动可以有效地促进水资源的利用和保护。
