抄録
Sediment quality changes in reservoir influence downstream water quality. Therefore, already experimental study of water and sediment quality changes was done for 450 days using water and sediment. In this study, sediment quality model which predicts changes of anaerobic conditions in a reservoir sediments was developed. This model predicts changes of nitrogen, phosphorus and iron in sediment and porewater. The experimental results were simulated by this model. The computational results show the changes of the characteristics of organic nitrogen and phosphorus, nitrate nitrogen, phosphate. From the above results, in the sediment, could be demonstrated by simulation that proceeds mainly by nitrate reduction.