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Cost-benefit analysis for urban rainwater harvesting in Beijing

机译:北京城市雨水收集的成本效益分析

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摘要

Beijing has built 267 urban rainwater harvesting projects (URHPs) in order to alleviate severe water problems; however, these projects are lacking in effective and full-scale cost-benefit analysis (CBA). In this paper, a CBA model for URHPs is put forward to evaluate projects. Results indicate the following: (1) URHPs can bring remarkable benefits, with an average benefit index α of 2.0; (2) in addition, 66.7% of the districts have α values exceeding 1.0; (3) The distribution of α, along with regression analysis shows that suburban areas have received more benefits because of fewer space limitations than urban areas.
机译:为了缓解严重的水问题,北京已经建立了267个城市雨水收集项目。但是,这些项目缺乏有效和全面的成本效益分析(CBA)。本文提出了一种针对URHPs的CBA模型来评估项目。结果表明:(1)URHP可以带来显着的收益,平均收益指数α为2.0; (2)此外,有66.7%的地区的α值超过1.0; (3)α的分布以及回归分析表明,由于空间限制比城市地区少,郊区获得了更多收益。

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  • 来源
    《Water International》 |2010年第2期|p.195-209|共15页
  • 作者单位

    Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,Beijing, China Graduate School, Chinese Academy of Sciences, Beijing, China;

    rnInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,Beijing, China;

    rnInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,Beijing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    urban rainwater harvesting; cost-benefit analysis; water shortage; space limitation; Beijing;

    机译:城市雨水收集;成本效益分析;缺水;空间限制;北京;

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