苏州河和黄浦江2002年春夏季营养盐变化

Variation of utrients in Suzhou and Huangpu River in spring and summer of 2002

于2002年4～7月在苏州河、黄浦江4个采样点采集水样,并用连续流动分析仪进行NH3-N、NO2-N、NO3-N、PO4-P、SiO3-Si等5个项目含量的测定.对比分析北新泾、河南路桥、十六铺和嫩江码头4个站点营养盐之间的情况,发现苏州河春、夏季节营养盐的变化比黄浦江强烈,而5个营养盐项目之间,NH3-N比其他项目变化较大;苏州河的营养盐通量在黄浦江通量上占一定比重,其中以NH3-N比重最大;另外,黄浦江水体中,营养盐浓度在嫩江码头站位较上游十六浦站位有不同程度的增加,同样的,以NH3-N增加为最.

The samplings of water samples were made from Suzhou and Huangpu River (Station Beixinjing, Henan Road Bridge, Shiliupu Dock and Nenjiang Dock) for the determination of NH4-N, NO2-N, NO3-N, PO4-P and SiO3-Si by a Continuous Flow Analyzer (SAN++ ). Comparison of the nutrients shown that the fluctuation of the nutrients in Suzhou River was fiercer than in Huangpu River. While among five nutrients, the variation of NH3-N is the most and the fluxs of five nutrients in Suzhou River play the certain role in that of Huangpu River, respectively, a-mong them NH3-N contributes most. Besides,the nutrient concentrations were higher at Station Nenjiang Dock than at Station Shiliupu Dock; also, the increase of NH3-N concentration is the highest.