西北诸河区地表水水质评价  

Quality Evaluation of Surface Water in the Northwest Region

作　　者：杨艳春[1] 彭勃[1] 刘桂丽 程伟[1] 

机构地区：[1]黄河流域水资源保护局,河南郑州450004 [2]内乡县环境监测站,河南内乡474350

出　　处：《人民黄河》2011年第11期93-96,共4页Yellow River

摘　　要：介绍了西北诸河区地表水质评价结果,从点、面污染源排污状况着手,分析地表水河流、湖库水质状况,评价水功能区的纳污状况,并分析了污染变化趋势。结果表明:西北诸河区大部分河流和湖库水质良好,仅少部分区域存在不同程度的污染;有11.2%的水功能区主要污染物入河量超过纳污能力,超载区主要分布于河西内陆河、天山北麓诸河和塔里木河源流等水资源二级区;中亚西亚内陆河、塔里木河干流的各水质项目浓度上升趋势明显。Introduced the national integrated planning of water resources in the northwest catchment surface water quality and its evaluation results,the paper started from the point and nonpoint source pollution,status quo,and analyzed the quality status of the surface water of rivers as well as the lakes or reservoirs,then not only evaluated the water function zone of the polluted status,but also analyzed the pollution trend.The results show that,a） in the area of most rivers and lakes water quality is good,only few region exists different degrees of pollution;there are 11.2% water function area of major pollutants into the river over the pollutant carrying capacity,the overload areas mainly distributed in Hexi inland river basins,northern Tianshan and Tarim headstream water natural resources such as the Level 2 district;Central Asia inland river and the main stream of Tarim River concentrations of various items marked an upward trend.

关 键 词：水质评价 地表水 点污染源 面污染源 西北诸河区 

分 类 号：X824[环境科学与工程—环境工程]