新建水库初期磷氮变化的动态模拟研究

An Approach for Modeling on the Temporal and Spatial Distribution of P and N during the Initial Stage of Reservior Operation

本文首先建立磷氮时空分布模型并确定模型参数的率定方法。文章模拟了新建清平水库建库初期磷氮变化情况，得出由不稳定到稳定的过程。水库磷氮时空变化的模拟结果表明，空间分布是从库尾到大坝浓度逐渐递减，时间分布是一年中Ｐ，Ｎ 浓度七月份最高，年初年末最低，其分布曲线类似高斯分布。

In the paper,the temporal and spatial distribution model of P and N during the initial stage of reser vior operation and method of defining paramter of model are discussed The model is applied to modeling the change concentrations of P and N during the initial stage of Qinpin Reservior operation The result of modeling Qinpin Reservior shows that the concentrations of P and N are reducing from end to dam during the initial stage,and the concentrations are stable after three years