频率洪水对水环境质量的影响研究  

Research on Influence of Frequency Flood on Water Environment Quality

作　　者：程光均[1] 向文英[2] 李晓红[2] 武建华[1] 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]重庆大学资源与环境科学学院,重庆400045

出　　处：《重庆建筑大学学报》2005年第5期96-100,共5页Journal of Chongqing Jianzhu University

基　　金：国家自然科学基金重点项目(50334060)

摘　　要：以二维水动力学模型为基础,建立二维水质模型方程,通过不同频率下的洪水对水环境质量影响的数值模拟计算与研究,得出洪水流量对水环境质量起着主导性作用,指出有机物污染物质在低频率洪水下水环境质量明显优于高频洪水,同样,高频率洪水下重金属污染物浓度有大幅度提高的趋势。Based on the two- dimensional hydrodynamic model, the two -dimensional water quality model is presented in this paper. According to the numerical simulation and analysis of water environment quality at different frequency floodwater, it concludes that the flood runoff is the first factor for the water environment quality, and points out that the water environment quality is better in low frequency flood than that in high frequency in respect of organic contamination, in addition, the concentration of heavy metal in high frequency flood tends to be increased greatly.

关 键 词：水动力学模型 水环境质量 频率 洪水 

分 类 号：X132[环境科学与工程—环境科学]