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

发布时间：2017-12-26 18:31

本文关键词：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　出处：《资源科学》2017年08期 　论文类型：期刊论文

【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。
[Abstract]:Improving the efficiency of industrial green water resources is an important way to alleviate the shortage of water resources and the pollution of water environment in the economic zone of the Yangtze River. Taking regional industry as the research object, the industrial water and water pollution emissions are included in the analysis framework, and the Epsilon-Based Measure (EBM) -Tobit two stage efficiency analysis model is constructed. First, the EBM model is compatible with radial and non radial characteristics calculation of green industrial water efficiency in the Yangtze River Economic Belt of 11 provinces during 2005-2014, the temporal and spatial analysis of the efficiency of the characteristics; then, from the perspective of input factors of green water resources of the Yangtze River Economic Belt provinces industry inefficient deconstruction, estimates the contribution rate of each input factor, form root by Theil Index Interpretation of the Yangtze River economic belt industrial green water resources efficiency gap between regions; then, according to the EBM model to obtain the investment target value and the actual value of the measured difference with provincial and municipal industrial economy of the Yangtse River water saving and water pollution reduction potential; finally, the influence mechanism of using the panel Tobit model test of the Yangtze River economic belt industrial green water resource efficiency. The results show that: the green water efficiency in the Yangtze River economic belt industrial research period is low, area difference is obvious, the industrial water saving and pollution reduction potential; narrowing the gap between the upper reaches of the Yangtze River, middle and lower reaches of the three regions and the upper reaches of the Yangtze River provinces between the internal gap is the key to future optimization of the Yangtze River economic belt industrial green water resources efficiency the effect; the level of economic development, industrialization, industrial water intensity, technological progress, government environmental regulation, the regional difference of the Yangtze River economic belt industrial green water resources have certain efficiency, but the differences between various factors influence the direction of the impact strength and significant. The conclusions of this paper can provide theoretical and practical basis for the high efficiency and green utilization of industrial water resources in the Yangtze Economic Belt.
【作者单位】：安徽理工大学经济与管理学院;天津大学管理与经济学部;
【基金】：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)
【分类号】：F427;X24
【正文快照】： 1引言当前,作为全球最大的内河流域经济带,长江经济带人口和生产总值占中国比重超过40%[1],在中国经济发展版图中具有举足轻重的影响力。然而,长期高强度的经济开发使得长江经济带正面临严峻的资源环境问题,尤其是水资源短缺与水环境污染问题。一方面,虽然长江水资源总量相对

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