摘要
针对山东省莱州湾日益严重的海水入侵问题,利用变密度流地下水模拟软件SEAWAT建立一个非均质二维变密度地下水数值模型。通过对模型进行校正和检验,利用识别后的二维变密度地下水数值模型对莱州湾南岸地区今后几年的海水入侵程度进行预测。模型模拟结果表明,研究剖面的3 g/L矿化度线以约400 m/a速率向陆推移,浅层淡水咸化速度加快,严重影响了农业和生活用水量。预测结果可为莱州湾地区防治海水入侵提供技术。
In view of the increasingly serious problem of seawater intrusion in Laizhou Bay Area,a variable density flow simulation software SEAWAT is used to establish a two-dimensional variable density groundwater numerical model for heterogeneous media.To identify the hydrogeological parameters of the aquifers in the study area,the model was calibrated and validated by observed water level and observed concentration.The model was applied to predict the dynamics and trend of seawater intrusion.Prediction results showed that the salinity line of 3 g/L would move in 400 m/a to inland and shallow freshwater salinized rapidly,seriously affecting the agriculture and domestic water uses.This two-dimensional seawater intrusion model provides the basis of controlling the seawater intrusion in Laizhou District.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2017年第S1期110-118,共9页
Environmental Science & Technology
