摘要
对天津市滨海地区的北塘水库沉积物（0～40cm）中有机物、全盐量、钠离子和氯离子等浓度进行测定，运用沉积物盐渍化和碱化度（ESP）等方法，探讨滨海地区蓄淡水库水质成化的主要影响因素和改善途径。结果表明：成化浅层地下水的补给是水库成化的重要因素，扩大水源地保护区范围，加强水库周边排沥设施建设，使地下水深度降至水库的临界深度以下，是水库水质咸化首要的改善途径。
Organic matter, Cl^-, Na^＋ and total salt content in sediment samples （0 - 40 cm） from Beitang Reservoir in the coastal region of Tianjin were measured. The main factors and improvement approach of water salinization were studied using sediment salinization and exchangeable sodium percentage （ESP） methods. The results showed that recharge and release of shallow saline groundwater in a plain area were the main factors in water salinization of the reservoir, and that expansion of water source protected areas and strengthening flood drainage facilities construction were the best ways to lower saline underground water levels in surrounding areas below the critical depth, in order to prevent water salinization of the reservoir.
出处
《水资源保护》
CAS
2010年第1期29-31,35,共4页
Water Resources Protection
基金
天津师范大学滨海新区研究项目(52LF27)
天津市科技发展计划项目(06YFSZSF05100)
关键词
蓄淡水库
滨海平原地区
水质咸化
沉积物
fresh water reservoir
coastal plain area
water salinization
sediment
