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入海洪水资源的海洋水库开发模式研究

, PP. 141-146

Keywords: 海洋水库,洪水资源,水质模型,海河流域

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Abstract:

阐述了海河流域河流水环境现状和滨海地区开发汛期入海洪水资源的必要性.结合天津市海挡防护规划,提出了将永定新河河口规划的人工潟湖作为海洋水库的构想.利用三维水动力和水质耦合模型,模拟了关闭退水闸、开启退水闸等不同蓄水条件下拟建海洋水库存蓄入海洪水的水量、盐度变化过程,结果表明,蓄水时关闭退水闸水库整体的盐度较高;蓄水时适时开启退水闸可促进高盐度水的稀释和置换;取水过程引起海洋水库底层水体均匀掺混,但水库上层、中层的淡水盐度保持稳定.

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