黄翱,甘治国,常文娟,马海波,徐宇航

• 1:三峡库区生态环境教育部工程研究中心
• 2:三峡大学水利与环境学院
• 3:中国水利水电科学研究院

摘要(Abstract)：

【目的】为实现“十四五”水安全保障规划目标及成渝地区双城经济圈战略地位，开展用水效率研究对节水型社会构建具有极为重要的意义。【方法】通过构建基于农业、工业、生活、生态及其效益的用水效率指标体系，依据最小信息熵原理对熵权法-信息量权重法进行组合赋权，采用不同决策机制系数下的VIKOR法计算利益比率以拟合TOPSIS相对贴近度，确定2016—2020年成渝经济圈用水效率以及水资源使用偏好，并分析圈内各地市用水效率影响因素，根据节水潜力计算方法确定各地市行业节水潜力。【结果】结果表明：成渝经济圈用水效率在决策机制系数为0.95时评估结果与现状一致，利益比率指数从2016年的0.779 7减小至2020年的0.701 2,整体用水效率提升10.07%。农业、工业、生活增幅均为20%左右，生态用水效率基本维持不变；资源、经济、社会效益均有小幅上升，而环境效益下降29%。成渝经济圈节水潜力总量为38.73亿，占现状年用水量的14.55%。【结论】研究期间成渝经济圈用水效率总体呈上升趋势，区域水资源偏好产生最大效益，生态用水效率和环境效益急需提升以满足城市发展需求。不同地市用水效率差异较大，城市定位以及产业用水结构对其有较为显著的影响。各地市行业节水潜力结构有所区别，大部分地区农业节水占比大，成都、重庆两大中心城市生活节水潜力显著。总体节水潜力较为可观。

关键词(KeyWords)： 成渝地区双城经济圈;用水效率;节水潜力;最小信息熵;TOPSIS法;VIKOR法;水资源;水安全

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2019YFC0408903)

作者(Author): 黄翱,甘治国,常文娟,马海波,徐宇航

DOI: 10.13928/j.cnki.wrahe.2023.09.007

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