荆州市区主要地表水中不同形态氮的分布特征

Distribution Characteristics of Different Types of Nitrogen in Surface Waters of Jingzhou

分析了荆州市区主要地表水体中不同形态氮的含量及分布特征,结果表明:荆州地区地表水氮素污染严重,总氮严重超标,是Ⅴ类水上限的5倍,氮素主要以氨氮和有机氮形式存在,水体中不同形态氮素含量存在明显的区域差异,不同区域或同一区域不同水域差异较大。

The content and distribution characteristics of different types of nitrogen were studied in the surface waters of Jingzhou.The results showed that the surface waters of Jingzhou were polluted seriously by nitrogen,and total nitrogen content was five times greater than the critical values of Type V,the worst level of water.The main types of nitrogen were NH+4-N and organic nintrogen.There was distinct diversity between the different areas or the different type's water body of same area.