中国城市节水潜力评估研究

发布时间：2018-05-30 06:56

本文选题：水资源 + 节水潜力　；参考：《干旱区资源与环境》2017年12期

【摘要】：城市节水潜力为城市用水现状与当前技术、工程和管理可以达到的先进水平下用水状态的差距。根据正态分布规律,以偏离均值一个标准差作为标杆临界点,确定城市用水先进水平,并基于此构建了城市节水潜力系数模型,对我国城市节水潜力进行了综合评估。结果表明:2007-2014年间,我国城市整体及各城市类群的万元GDP节水潜力系数、人均综合节水潜力系数和人均生活节水潜力系数均逐年下降,即城市之间的水效差距在不断缩近,基于城市对标的节水潜力不断变小,其中生活节水潜力系数最小,生活节水已渐入瓶颈期;相比之下,各城市之间的工业水效差距有拉大趋势,通过城市对标学习进行节水尚有一定的挖潜空间,特别是二产比重低的城市工业节水潜力较大,是未来城市工业节水的重点管理对象。
[Abstract]:The potential of urban water saving is the gap between the current situation of urban water use and that of current technology, engineering and management. According to the rule of normal distribution, the advanced level of urban water use is determined by deviating from the mean value and a standard deviation as the critical point. Based on this, the urban water-saving potential coefficient model is constructed, and the urban water-saving potential of our country is comprehensively evaluated. The results show that the GDP water-saving potential coefficient, the per capita comprehensive water-saving potential coefficient and the per capita water-saving potential coefficient of the whole city and the urban groups are decreasing year by year, that is, the water efficiency gap between cities is narrowing. Based on the fact that the potential of saving water to the target of the city is becoming smaller and smaller, among which the coefficient of the potential for saving water in daily life is the smallest, and the water saving in life has gradually entered the bottleneck period; in contrast, the gap of industrial water efficiency among cities has a tendency to widen. There is still some potential for saving water through city standard learning, especially the potential of saving water in urban industry with low proportion of secondary production, which is the key management object of urban industry water saving in the future.
【作者单位】：中国人民大学环境学院;
【基金】：中国人民大学重大基础研究计划项目(12XNL005)研究成果
【分类号】：TV213.4

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