高建,姚福明,雷晓辉,王健馨,马芳平

• 1:国能大渡河流域水电开发有限公司
• 2:国能大渡河新能源投资有限公司
• 3:中国水利水电科学研究院

摘要(Abstract)：

为研究水电梯级开发背景下的大渡河干流水环境现状,在大渡河干流上布置了20个水质监测断面,选取了21个水质监测项目,并收集了大渡河干流历史水质监测资料。水质评价除对每个断面采用单因子方法进行水质评价外,还对整个干流进行了河流综合水质评价。针对大渡河干流水环境监测存在的问题,提出了水环境自动监测体系建议方案。综合本次监测数据和历史监测资料进行分析。结果表明:(1)河流断面水质分析表明,大渡河干流历史监测断面水质达标率为75%,而本次现场调查断面水质达标率为85%,与历史水质状况相比有一定改善;(2)河流综合水质评价表明,大渡河干流历史监测水质数据的Ⅰ—Ⅲ类比例为75%,河流历史总体水质状况为良好;而本次现场调查的各水质监测断面水环境质量总体较好,Ⅰ—Ⅲ类比例100%,无劣Ⅴ类,河流现状总体水质状况为优,水电站建设和运行没有引起大渡河干流水质变差。研究成果可以实现水质信息在线查询和共享,保障大渡河流域水环境安全,为大渡河流域水生态修复和可持续发展提供科学依据。

关键词(KeyWords)： 大渡河;水电梯级开发;单因子评价法;水质自动监测体系;水质评价;水环境;水电站

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51879172)

作者(Author): 高建,姚福明,雷晓辉,王健馨,马芳平

DOI: 10.13928/j.cnki.wrahe.2021.10.013

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