沿海拟建水库底泥盐分释放规律研究  

Study on the Salt Release Law from the Bottom Sediment of a Proposed Reservoir in the Coastal Area

作　　者：张鹏[1] 姜翠玲[1] 朱立琴[1] 彭焱梅[1] 王友恒[1] 邢西刚[1] 

机构地区：[1]河海大学水文水资源学院,江苏南京210098

出　　处：《人民黄河》2013年第9期74-75,78,共3页Yellow River

摘　　要：为研究沿海地区某拟建水库底泥盐分释放规律,取库区和库周不同深度的圆柱状底泥,在实验室模拟不同土壤含盐量、不同水深、静止和扰动条件下Cl-的释放过程和释放强度,分析了Cl-释放对水库水质的影响。结果表明,盐分释放量与土柱盐分含量有关。水库运行水位越低,底泥中的Cl-越容易释放。扰动对水库底泥盐分的释放有很大促进作用。盐分释放导致水库底泥中的Cl-含量不断降低,合理调度可以减轻水库水质咸化的风险,保证拟建水库蓄水后的水质安全。In order to study the sediment salt release law of a proposed reservoir in coastal area, cylindrical sediment samples of different depths of the bottom and around the reservoir area were taken to simulate the release process and intensity of C1- in different salt contents, water depths, conditions of static and disturbance. The effect of C1- release on water quality was analyzed. The results indicate that salt release is related to salt content of the samples, the lower the operation water depth of the proposed reservoir is, the easier the release of C1 - from sediment. Wind disturb- ance can significantly promote salt release. The continual release of salt causes the decrease of C1 - content of the bottom sediment. Reasonable reg- ulation can reduce the risk of water salinization of reservoir and guarantee the water quality safety of the proposed reservoir.

关 键 词：盐分释放 水质咸化 水库 沿海地区 

分 类 号：X832[环境科学与工程—环境工程] X132