黄河泥沙对水质参数影响的研究

运用多年资料研究黄河水沙特点 :水少沙多、含沙量高 ,水沙导源 ,水沙量年际变化大 ,水沙年内分配不均 .泥沙是黄河来源面最广的非点源污染物 ,对排入黄河的污染物 (特别是重金属、有机物 )具有显著的吸附效应 ,成为污染物的载体 .文章分析了多沙河流水质监测评价执行国家标准所出现的特殊问题 ,并对黄河泥沙与若干水质参数的关系进行了研究 .

Influence of Yellow River sediment on water quality parameters

The water and sediment characteristics of the Yellow River are studied based on long-term observed data, i.e. small volume of water and high concentration of sediment, different sources of water and sediment, large year-to-year variation of amounts, and uneven distribution of water and sediment in the year. The sediment in the Yellow River is a kind of non-point pollutants with the widest area, and has a high absorptive power to pollutants (especially heavy metals and organic matters) discharged into the Yellow River, so it becomes a carrier of pollutants. Besides, some unusual problems are analyzed in implementation of the national standards for monitoring and evaluation of the water quality of sediment-laden rivers, and the relationships between the sediment and water quality parameters are also studied for the Yellow River.