中国主要河流控制站氮、磷含量变化规律初探

The Variations of Nitrogen and Phosphorus Concentrations in the Monitoring Stations of the Three Major Rivers in China

根据黄河洛口站、长江武汉站和珠江高要站１９８０ 到１９８９ 年的水文、水化学资料，分别计算中国３ 条主要河流下游控制站８０ 年代营养元素氮、磷平均含量，比较氮、磷含量的季节变化规律，并探讨影响它们含量变化的主要因素。

The mean concentrations of nitrogen and phosphorus in the three major rivers of China during the 1980s in the monitoring stations were calculated according to the hydrological and water quality data of the Luokou Station of the Yellow River, the Wuhan Station of the Yangtze River and the Gaoyao Station of the Pearl River from 1980 to 1989. Seasonal variations of nitrogen and phosphorus concentrations of the rivers are discussed,and their relationships with hydrological regimes are reported as well.