牡丹江流域农业面源污染特征及防治对策研究

Research on the Characters of Agricultural Non-Point Pollution and Control Countermeasures in Mudan River Basin

牡丹江流域农业面源污染的贡献值大于点源污染。农业面源污染的主要来源中,农田化肥的污染贡献最大,其次是畜禽粪便、生活污水、生活垃圾。区域污染贡献比例中,COD贡献值按大小顺序依次为宁安市、牡丹江市、林口县、海林市。NH3-N、TN、TP贡献值按大小顺序依次为宁安市、林口县、海林市、牡丹江市。结合牡丹江流域农业面源污染的构成特点和现存问题,提出切实可行的农业面源污染防治对策。

The pollution from non - poiht source was more serious than that from point source in Mudan River basin. The highest contribution was fertilizer, which was followed by livestock and poultry manure, domestic sewage arid waste. The sequence of regional pollution contribution by COD was that Ning＇an 〉 Mudanjiang 〉 Linkou 〉 Hailin, while the sequence by NH3 - N, TN and TP was that Ning＇an 〉 Linkou 〉 Hailin 〉 Mudangjiang. In the end, the paper puts forward the control countermeasures for agricuhural non - point source pollution based on the pollution characters and practical issues.