天津市滨海新区拟建水库水质咸化风险试验研究  

Experimental Study on Water Salinization Risk of Proposed Reservoir in Coastal Region of Tianjin City

作　　者：彭焱梅[1] 姜翠玲[1] 朱立琴[1] 常进[1] 王友恒[1] 张鹏[1] 郭鑫[1] 

机构地区：[1]河海大学水文水资源学院,江苏南京210098

出　　处：《水电能源科学》2013年第3期31-33,205,共4页Water Resources and Power

摘　　要：鉴于对水库水质咸化进行现场模拟试验的研究较少,在天津市滨海新区拟建库区修建了一个模拟水池,模拟了土壤盐分释放作用与蒸发浓缩作用对拟建水库水质咸化的影响,评估了建库后水库水质咸化的风险。结果表明,模拟水池蓄水100d后Cl-达到稳定,此时Cl-单位面积释放量为1 170.0g/m2,Cl-浓度上升了1 458.6mg/L;100d后,土壤盐分释放作用与蒸发浓缩作用使Cl-浓度增加的比例分别为92.4%、7.6%。据此可预测拟建水库建库蓄水后存在咸化风险。In view of the fact that there are few studies on reservoir on-site simulation test about water salinization, a simulation trial pond was built in the proposed reservoir area in coastal region of Tianjin City. The impact of salinity transfer of the saline soil and evaporation concentration on water salinization of the proposed reservoir was simulated and the risk of water salinization aiCter the proposed reservoir was assessed. The results show that the concentration of C1- be- come stable in 100 days after the simulation poor was impoundment, the C1- release per unit area was 1 170.0 g/m^2 and the C1- concentration was increased by 1 458.6 mg/L at this time; 100 days after the experiment, the proportion of salin- ity transfer of the saline soil remained 92.4% and evaporation concentration was 7.6%. Based on the on-site simulation test, after the proposed reservoir is built and put into use, there is a risk of water salinization.

关 键 词：水质咸化 模拟试验 拟建水库 天津市 

分 类 号：X832[环境科学与工程—环境工程] X820.4