Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers

MEN Bao-hui

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Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers

更新时间：2024-11-07

- Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers
- Vol. 19, Issue 5, Pages: 135-138(2005)
- 作者机构：
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  CLC： P333X171.1
- Published：2005
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MEN Bao-hui. Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers[J]. 2005, 19(5): 135-138.
DOI：

MEN Bao-hui. Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers[J]. 2005, 19(5): 135-138. DOI：

摘要

南水北调西线一期工程从雅砻江支流鲜水河的达曲、泥曲和大渡河支流的色曲、杜柯河、玛柯河和阿柯河等6条河流通过“六坝七洞一渠”

将40亿m3/a水调到黄河的支流贾曲。这一水量约占引水坝址河川径流的65%~70%

剩余30%~35%的水量能否满足河道内的生态需水

需要进一步研究。本文通过分析该调水区河道内的生态需水主要是满足水生生物栖息地的需水要求

讨论了水生生物产量与水体水量之间的关系

利用河道内径流50%保证率的河道径流的30%作为最小生态径流量的方法

估算了达曲、泥曲、绰斯甲河、足木足河的水文站断面的最小生态径流量

并利用Tennant方法对估算结果进行了评价。结果表明:4~9月采用最小生态径流量可以使河道的流量状态处于中等水平

10~3月若河道内流淌着最小生态径流

可以使河道内水生生物及河道的正常功能处于非常好的状态

只要工程建成后采用计算的最小生态径流为河道内下泄流量

就可以保证同时满足调水河流的资源水和生态水。

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Estimating and Evaluating on Minimum Ecological Flow of Western Route Project of China''''s South-to-North Water Transfer Scheme for Water Exporting Rivers

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