| 1. | Towards the research on two flood water of yuhe river in datong city during 2004 , by measuring and comparing their discharge , sediment concentration 、 nutrient include organic , phosphorus , , potassium , azote , the result shows that the nutrient content of the sediment is greatly larger than that of supernatant fluid
摘要以2004年大同市御河干渠两场洪水为研究对象，对其流量、含沙量、养分（包括有机质，氮，磷，钾）做了测定和比较，研究结果表明：洪水中下层泥沙中的养分含量远大于上清液中的养分含量；洪水中整体养分含量随着含沙量的增大而增大，并且养分含量和含沙量呈近似线性关系。 |
