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机构地区:[1]黑龙江省环境保护科学研究院,黑龙江哈尔滨150056 [2]新疆阿勒泰地区环境监测中心站,新疆阿勒泰836500
出 处:《环境科学与管理》2014年第9期117-119,共3页Environmental Science and Management
摘 要:研究了中国北方某流域不同污染源的污染贡献,结果表明:COD贡献量点源为719.21 t,农业面源污染为7 488.02 t,农业面源污染是该流域水环境污染的主要来源。农业面源污染物等标污染负荷总量为8 359.44×106m3/a。不同污染源污染贡献比例:农田化肥占49.24%、畜禽养殖占35.10%、农村生活占14.69%、农作物秸秆仅占0.97%。污染物贡献量比例:TN占56.46%、TP占39.06%、COD仅占4.48%。This paper researched the pollution contribution for different pollution sources in one river basin in north of China.The results showed that the quantity of COD contribution coming from point source pollution and agricultural non-point source pollution were 719.21t and 7 488.02t respectively.Total quantity of equal standard pollution load of agricultural non-point source pollution was 8 359.44 × 106 m3/a.The ratios of pollution contribution for different pollution sources were shown as follows:chemical fertilizer was 49.24%,livestock and poultry was 35.10%,rural domestic wastewater was 14.69%,and crop straw was only 14.69%.The ratios of pollutants were shown as follows:TN was 56.46%,TP was 39.06%,COD was only 4.48%.
分 类 号:X52[环境科学与工程—环境工程]
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