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首页> 外文会议>International Conference on Dam Safety Management（2008水库大坝安全管理国际研讨会） >Ecological Effects of Dam Removal: a Preliminary Study
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Ecological Effects of Dam Removal: a Preliminary Study

机译：大坝拆除的生态影响：初步研究

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摘要

Wholescale disrepair and aging of Chinese dam infrastructure may make dam decom-missioning and removal to be an important measure in dam safety management. It's essential to study ecological consequences of dam removal. The sediment erosion, transport, and dep-osition are likely to be the most important physical effects of dam removal. And sediment re-gime changes and channel morphology responses following dam removal result in ecological changes. This paper reviewed ecological effects of dam removal, and developed a strategy for ecological effects research of dam removal. Emphasizing the importance of sediment dynam-ic, the strategy suggested using sediment transport models to quantify sediment dynamic and related channel form adjustments, and analyzing ecological effects of dam removal based on modeling results. According to this research strategy, this paper at last developed a prelimi-nary research method to assess flow stage changes associated with downstream channel ag-gradation following Shaheji Dam removal.
机译：中国大坝基础设施的全面失修和老化可能使大坝退役和拆除成为大坝安全管理的重要措施。研究拆除大坝的生态后果至关重要。泥沙的侵蚀，运输和沉积可能是拆除大坝最重要的物理影响。大坝拆除后的沉积物重灰质变化和河道形态响应导致生态变化。本文回顾了大坝拆除的生态效应，提出了大坝拆除的生态效应研究策略。该策略强调了底泥动力的重要性，建议使用底泥输运模型来量化底泥动力和相关的河道形态调整，并根据建模结果分析大坝拆除的生态影响。根据这一研究策略，本文最后开发了一种初步的研究方法，以评估与沙河基大坝拆除后下游河道凝结有关的水位变化。

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  • 来源
  • 会议地点 Nanjing(CN)
  • 作者

    Yang Meng; Qian Xin; Yang Jue; Sheng Jinbao; Wan Yuqiu; Cheng Cuiyun;

  • 作者单位

    State Key Laboratory of Pollution Control and Resource Reuse,Environmental School, Nanjing University, Nanjing 210093, China;

    State Key Laboratory of Pollution Control and Resource Reuse,Environmental School, Nanjing University, Nanjing 210093, China;

    State Key Laboratory of Pollution Control and Resource Reuse,Environmental School, Nanjing University, Nanjing 210093, China;

    Dam Safety Management Department, Nanjing 210029, China;

    State Key Laboratory of Pollution Control and Resource Reuse,Environmental School, Nanjing University, Nanjing 210093, China;

    State Key Laboratory of Pollution Control and Resource Reuse,Environmental School, Nanjing University, Nanjing 210093, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种
  • 中图分类 水利工程;
  • 关键词

    Dam removal; sediment; channel form; ecosystem;

    机译：大坝拆除沉积渠道形式生态系统;

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