水文水质模型联合应用于水库水质预测研究

联合应用流域水文非点源AnnAGNPS模型和水库水质CE-QUAL-W2模型,AnnAGNPS模型输出黑河流域非点源污染负荷,将其转化为金盆水库入库浓度作为CE-QUAL-W2模型的输入,对黑河金盆水质进行预测,研究非点源污染对陕西金盆水库水质影响.结果表明,在对水库水质进行预测时,应对洪水期和非洪水期的非点源污染区别对待.非点源污染在洪水期时对金盆水库水质有较大影响,而在非洪水期时非点源污染对水库水质影响不显著.非点源污染对水库纵向和垂向水质影响存在差异性.林地对流域非点源污染削减起到很大作用.

Connecting hydrological and water quality models for prediction research of reservoir water quality

Two powerful watershed and water quality models(AnnAGNPS and CE-QUAL-W2) were integrated In this paper.The non-point source pollution loading of AnnAGNPS model input the CE-QUAL-W2 model.The CE-QUAL-W2 model was applied to simulate water quality in the Jinpen Reservoir and study of non-point source pollution on water quality of reservoir.When predicting the water quality of reservoir non-point source pollutions should be treated differently in flood and non-flood period.Non-point source pollution had great impact for water quality of Jinpen Reservoir in flood period,but non-point source pollution had less impact for reservoir water quality in non-flood period.The impacts made a great difference between longitudinal and vertical water quality.Forest played a significant role for non-point source pollution reduction in the watershed.