资源科学 ›› 2017, Vol. 39 ›› Issue (8): 1522-1534.doi: 10.18402/resci.2017.08.09

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长江经济带工业绿色水资源效率的时空分异与影响因素——基于EBM-Tobit模型的两阶段分析

汪克亮1(), 刘悦1, 史利娟1, 刘蕾1, 孟祥瑞1, 杨宝臣2   

  1. 1. 安徽理工大学经济与管理学院,淮南 232001
    2. 天津大学管理与经济学部,天津 300072
  • 收稿日期:2017-03-13 修回日期:2017-06-16 出版日期:2017-08-20 发布日期:2017-08-20
  • 作者简介:

    作者简介:汪克亮,男,安徽枞阳人,副教授,硕士生导师,主要研究方向为资源经济与环境管理、效率与生产率分析。E-mail:klwang@163.com

  • 基金资助:
    基金项目:国家自然科学基金项目(71403003);教育部人文社会科学研究项目(13YJC790136);安徽理工大学研究生创新基金项目(2017CX2055)

Yangtze River Economic Zone spatial and temporal disparities in industrial green water resource efficiency and influencing factors based on two-step analysis of EBM-Tobit Model

Keliang WANG1(), Yue LIU1, Lijuan SHI1, Lei LIU1, Xiangrui MENG1, Baochen YANG2   

  1. 1. School of Economics and Management,Anhui University of Science and Technology,Huainan 232001,China
    2. College of Management and Economics,Tianjin University,Tianjin 300072,China
  • Received:2017-03-13 Revised:2017-06-16 Online:2017-08-20 Published:2017-08-20

摘要:

提高工业绿色水资源效率是缓解长江经济带水资源短缺与水环境污染的重要途径。本文以地区工业为研究对象,将工业用水与水污染排放纳入分析框架,构建Epsilon-Based Measure(EBM)-Tobit两阶段效率分析模型。首先,采用兼容径向与非径向特点的EBM模型测算2005-2014年长江经济带11省市的工业绿色水资源效率,分析效率的时空差异特征;然后,从投入要素视角对长江经济带各省市工业绿色水资源无效率进行解构,测算各投入要素的贡献率,通过泰尔指数分解诠释长江经济带工业绿色水资源效率地区差距的形成根源;进而,根据EBM模型计算得到的投入目标值与实际值的差异测算长江经济带各省市的工业节水与水污染减排潜力;最后,利用面板Tobit模型检验长江经济带工业绿色水资源效率的影响机制。研究结果表明:研究期内长江经济带工业绿色水资源效率较低,地区差异特征明显,工业节水与水污染减排潜力巨大;缩小长江上游、中游与下游三大地区间差距和长江上游各省市间内部差距是未来优化长江经济带工业绿色水资源效率的关键;经济发展水平、工业化程度、工业用水强度、科技进步、政府环境规制力度、地域差异对长江经济带工业绿色水资源效率均有一定影响,但是各因素影响方向、影响力度与显著性存在差异。本文研究结论可以为长江经济带实现工业水资源高效、绿色利用提供理论与实践依据。

关键词: 长江经济带, 工业绿色水资源效率, EBM-Tobit模型, 两阶段分析, 时空分异, 影响因素

Abstract:

Improving industrial green water efficiency is important to alleviating water resource shortage and water environmental pollution in China. Here we incorporated industrial water resource consumption and water pollution emissions into a unified analysis framework and EBM modeling with characteristics of radial and non-radial modeling. Our aim was to measure industrial green water efficiencies in 11 provinces from the Yangtze River Economic Zone and investigate the spatial-temporal differences from 2005 to 2014. The contribution rate of inefficiency for each input was measured by decomposition of overall industrial green water inefficiency from an input perspective. The reason for regional disparities in the Yangtze River Economic Zone industrial green water efficiency was investigated using the Theil index decomposition method,and the potential for industrial water conservation and industrial water pollution reduction were measured according to the gap between target and actual values of inputs. Panel Tobit modeling was done investigate the factors influencing industrial green water resource efficiency. We found that industrial green water efficiency in the zone is relatively low and regional difference are significant,indicating a large potential for industrial water conservation and industrial water pollution reduction. Decreasing the efficiency gap between upstream,midstream and downstream and the efficiency internal gap of upstream provinces is a key measure for the zone’s industrial green water efficiency. Economic development,increasing industrialization degree,increasing industrial water intensity,technological progress,environmental regulation and regional differences all have an effect on industrial green water resource efficiency. These data can help provinces in the Yangtze River Economic Zone utilize industrial water resource efficiently and greenly.

Key words: Yangtze River Economic Zone, industrial green water efficiency, EBM-Tobit Model, Two-step analysis, spatial and temporal disparities, influencing factors