长江科学院院报2018，Vol.35Issue(5)：12-16,5.DOI:10.11988/ckyyb.20161227
强降雨过程中入库面源污染对库区水质的影响
Effects of Non-point Source Pollutants on Water Quality of Reservoir During Heavy Rainfall
摘要
Abstract
To obtaining the influence of non-point source pollution caused by heavy rainfall on the water quality of reservoir,a 3-D hydrodynamic and water quality model is established to analyze the changes in 3-D hydrodynamics and spatial distribution of pollutant concentration in Dahuafang reservoir during heavy rainfall. Result show that in the presence of large inflow,the flow field in reservoir area is mainly affected by inflow and outflow;pollutants mi-grate and diffuse towards the downstream with the flow process,and the maximum concentration and influence range increase and then decrease with the passing of time. When inflow gradually reduces,the influence of stream flow on reservoir flow field gradually weakens while the effect of wind-driven flow gradually intensifies, which suggest that the flow field is controlled by both the inflow and outflow and the wind-driven flow. In the course of migration,pol-lutant concentration presents corresponding changing characteristics in three dimensions.关键词
强降雨/农业面源污染/三维数值模拟/水质评价/大伙房水库Key words
heavy rainfall/agricultural non-point source pollution/three-dimensional numerical simulation/water quality evaluation/Dahuofang Reservoir分类
天文与地球科学引用本文复制引用
黄瑞,韩龙喜,张防修..强降雨过程中入库面源污染对库区水质的影响[J].长江科学院院报,2018,35(5):12-16,5.基金项目
水利部公益性行业科研专项(201101031) （201101031）
