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首页> 外文会议>2011 International Conference on Remote Sensing, Environment and Transportation Engineering >The water quality and pollution character in QingShuiHai lake valley-typical urban drinking water sources
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The water quality and pollution character in QingShuiHai lake valley-typical urban drinking water sources

机译：清水海湖流域的水质和污染特征-典型的城市饮用水源

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Water Pollution sources dissection has important guiding significance for drinking water sources protection. Focused on QingShuiHai valley, the research investigated water quality by uniform distribution sampling in the area in 2007∼2008, and analyzed pollution sources characteristics. The results showed that the concentration of Total Nitrogen (TN)(0.15–7.99 mg L−1) was 0.3 ∼ 15.98 times higher than the national second-class surface water standard; TN, Total Phosphorus (TP) and Chemical Oxygen Demand (COD) were the main factors deciding water quality. Based on a typical agriculture economy, QingShuiHai lake valley had developed slowly, with a population of which 91.68% were agricultural population, and with 90% economic output coming from farm production. Non-point source pollution was the major source of nitrogen and phosphorus, from which 96.95% COD, 94.03% TN and 95.48% TP produced. The annual output of COD, TN and TP from non-point source were respectively 1956.8ta−1, 450.60 ta−1, and 68.42ta−1. Of the non-point sources, agricultural runoff, animal manure and rural sewage contributed the most part of the COD, TN and TP load. Spatial distribution character analysis of pollution load showed that COD, TN and TP mainly came from second protected area, which was a serious threat because of its close location from water bodies. Therefore, non-point source pollution control, especially agricultural production and livestock & poultry breeding was the key for the control of nitrogen and phosphorus pollution in QingShuiHai lake valley.
机译：水污染源解剖对饮用水源保护具有重要的指导意义。该研究以清水海流域为研究对象，采用均匀分布抽样的方法调查了该地区2007〜2008年的水质，并分析了污染源的特征。结果表明，总氮（TN）浓度为0.15〜7.99 mg L -1 ，比国家二级地表水标准高0.3〜15.98倍。总氮，总磷（TP）和化学需氧量（COD）是决定水质的主要因素。基于典型的农业经济，清水海湖流域发展缓慢，人口占农业人口的91.68％，经济产值的90％来自农业生产。面源污染是氮和磷的主要来源，产生了96.95％的化学需氧量，94.03％的总氮和95.48％的总磷。非点源的COD，TN和TP的年产量分别为1956.8ta -1 ，450.60 ta -1 和68.42ta -1> sup>。在非面源中，农业径流，动物粪便和农村污水占了COD，TN和TP负荷的大部分。污染负荷的空间分布特征分析表明，化学需氧量，总氮和总磷主要来自第二保护区，由于其离水体较近，因此构成了严重威胁。因此，非点源污染的控制，特别是农业生产和畜禽养殖业的污染，是控制青水海流域氮，磷污染的关键。

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