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Approaches to efficient investment in nonpoint source pollution management -- A municipal perspective.

机译：在非点源污染管理中进行有效投资的方法-市政观点。

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摘要

Management of pollutants from stormwater runoff will require significant investments by municipalities in the next decade. Conventional approaches are not focused on pursuing efficient solutions to maximize pollutant reduction benefits from that investment. One obstacle has been the lack of appropriate tools to determine efficient strategies.;Two categories of tools developed to address this problem are examined in the context of a case study of Ell Pond, Melrose, MA: a 'watershed assessment' approach incorporating cost-effectiveness analysis (the Urban Subwatershed Restoration Manual), and an optimization-based Decision Support System (the StormWISE model). Initial results demonstrate the limits of both tools. In the case study, neither tool's method for prioritizing subwatersheds for investment produced a meaningful priority ranking. Overall, the watershed assessment tool succeeded in producing a list of management strategies ranked by cost-effectiveness but did not provide a framework for determining the most efficient combination of management practices. On the other hand the StormWISE DSS, designed to provide such a framework, is limited by a focus on distributed on-site structural BMPs as the mechanism for achieving pollutant load reduction. This makes it difficult to apply where a wider range of management techniques is indicated.;Suggestions are made for revising the StormWISE DSS to accommodate a wider range of management techniques. In addition, the preliminary results are used as the basis for recommendations to the City of Melrose for management strategies, further analysis and data collection, and approaches for incorporating efficient strategies into compliance with regulatory requirements.
机译：在接下来的十年中，市政当局将需要大量投资管理雨水径流中的污染物。常规方法并不专注于寻求有效的解决方案以最大程度地减少该投资带来的污染物减排收益。一个障碍是缺乏确定有效策略的适当工具。；在马萨诸塞州梅尔罗斯市的Ell Pond的案例研究中，研究了为解决这一问题而开发的两类工具：一种结合了成本的“分水岭评估”方法，有效性分析（《城市子流域恢复手册》）和基于优化的决策支持系统（StormWISE模型）。初步结果证明了这两种工具的局限性。在该案例研究中，没有一种工具为子流域划分优先级来进行投资，该方法没有产生有意义的优先级排名。总体而言，分水岭评估工具成功产生了按成本效益排序的管理战略清单，但没有提供确定最有效的管理实践组合的框架。另一方面，旨在提供这种框架的StormWISE DSS受限于集中于分布式现场结构BMP（作为减少污染物负荷的机制）的限制。这使得难以在指示范围更广的管理技术的地方应用。;建议修改StormWISE DSS以适应范围更广的管理技术。此外，初步结果被用作向梅尔罗斯市提出管理策略，进一步分析和数据收集以及将有效策略纳入法规要求的方法的建议依据。

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  • 作者

    Murphy, Susan.;

  • 作者单位

    Tufts University.;

  • 授予单位 Tufts University.;
  • 学科 Environmental Sciences.;Urban and Regional Planning.;Engineering Environmental.
  • 学位 M.S.
  • 年度 2010
  • 页码 129 p.
  • 总页数 129
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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