摘要
以曲阜市山前冲洪积平原为例,运用地下水数值模拟软件FEFLOW,结合近30年的观测资料,建立地下水流和溶质运移耦合数值模型。运用识别后的模型对研究区的地下水系统演化规律进行研究与分析。研究表明:近30年来,研究区内地下水水位年均下降0.2 m,硝酸盐浓度年均增长1.05 mg/L,具有明显的规律性;研究区地下水流与溶质运移两者之间有着密切的联系,人类活动是造成地下水环境负效应的主要因素。应加强对地下水资源的科学调度管理及控制污水排放,防止地下水环境的进一步恶化。
Taking the alluvial plain in the Qufu area as an example, the 3D groundwater flow and numerical solute transportation models of the investigated area are established in this study by using nearly thirty years＇ survey data and the groundwater numerical simulation software FEFLOW. The calibrated model has a high level of simulation precision. An analysis is made of evolution regularity in the investigated area with the model calibrated. The analysis shows that the groundwater level in this area has dropped since 1976 by an annual average of 0. 2m. Nitrate concentration has increased by an annual average of 1.05mg/l, the solute transportation are closely related to the groundwater flow, which have obvious regularity. Human activities have a negative impact on the groundwater environment. Scientific management and control sewage discharges should be strengthened in order to prevent further deterioration of the groundwater environment.
出处
《中国农村水利水电》
北大核心
2009年第10期5-7,11,共4页
China Rural Water and Hydropower
基金
国家科技支撑计划子课题(2006BAD01B08-01)资助
