The results are as follows: (1) The total nitrogen (TN) and total phosphorus (TP) loads in the form of NPS pollution are greater than the point source pollution in 2000;

• 计算结果表明：(1)2000年黄河流域总磷(TP)、总氮(TN)的非点源污染负荷已超过点源污染负荷；