滇池新运粮河水质季节变化及河岸带生态修复的影响
Seasonal variation of water quality of Xinyunliang River,Dianchi Basin and the impact of the riparian ecological restoration
查看参考文献36篇
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文摘
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新运粮河作为一条重要的滇池入湖河流,其水质直接影响滇池的生态健康与环境安全.运用单因子水质标识指数法探讨新运粮河下游水质季节变化规律及影响因子,并分析河岸带修复方式(护岸改造)对河流水质的影响.结果表明:铵氮,总氮,总磷,化学需氧量随时间变化明显.在5-10月的雨季,各指标浓度呈下降趋势,11月至次年4月的旱季,降水量少,各指标浓度呈上升趋势,且显著高于雨季时浓度,监测河段全年水质为劣Ⅴ类.木桩护岸河段营养盐去除率明显高于直立混凝土堤岸河段的去除率,同一护岸类型河段夏季去除率显著高于冬季. |
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其他语种文摘
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Xinyunliang River is one of the major rivers which flow into Lake Dianchi.Water quality of the river effects the ecological health and environmental safety of Lake Dianchi.We employed single factor pollution indexes to investigate the seasonal variation of the water quality and the main factors which affect the quality.We studied the impact of the riparian ecological restoration on the river water quality taking the lower reaches of Xinyunliang River as an example.The results showed that there were obvious temporal variations in the concentration of ammonia nitrogen,total nitrogen,total phosphorus and chemical oxygen demand.All of the indicates showed declined tendency from May to November which is coincided with the rainy season,and were increased and significantly higher than those from November to next year’s April,the dry season.The quality of the water is much worse than Grade Ⅴ.The removal efficiency of pollutant in timber pile banks was higher than that in vertical cement banks.The removal efficiency in summer is much higher than that in winter. |
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来源
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湖泊科学
,2012,24(3):334-340 【核心库】
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DOI
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10.18307/2012.0302
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关键词
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滇池
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新运粮河
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水质
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季节变化
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河岸带
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生态修复
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地址
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1.
中国科学院水生生物研究所, 武汉, 430072
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河南工程学院, 郑州, 451191
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1003-5427 |
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学科
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环境科学基础理论;环境质量评价与环境监测 |
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基金
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国家重大科技专项
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中国科学院水生生物研究所淡水生态与生物技术国家重点实验室基金
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国家973计划
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文献收藏号
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CSCD:4541242
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