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首页> 外文期刊>Ground water >Impact of Coastal Land Reclamation on Ground Water Level and the Sea Water Interface
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Impact of Coastal Land Reclamation on Ground Water Level and the Sea Water Interface

机译：沿海土地开垦对地下水位和海水界面的影响

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摘要

Land reclamation in coastal areas may have a significant effect on local ground water systems. Steady-state analytic solutions based on Dupuit and Ghyben-Herzberg assumptions are derived to evaluate this effect. Two situations are considered, both with ground water flow resulting from precipitation recharge: the coastal aquifer of an extensive landmass and an island. The results show that after reclamation, the water table rises and the salt water-fresh water interface moves seaward. The degree of these changes depends on the extent of reclamation and the hydraulic conductivity of the fill material. For the island situation, the reclamation displaces the ground water divide and changes the ground water conditions in the entire island. An unintended advantage of the reclamation is an increase of fresh ground water resource because the reclaimed land can be an additional aquifer and rain recharge takes place over a larger area.
机译：沿海地区的土地开垦可能会对当地的地下水系统产生重大影响。得出了基于Dupuit和Ghyben-Herzberg假设的稳态分析解决方案来评估这种效果。考虑了两种情况，两种情况都是由降水补给产生的地下水流：一个广阔的陆地的沿海含水层和一个岛屿。结果表明，开垦后，地下水位上升，盐水-淡水界面向海移动。这些变化的程度取决于填海的程度和填充材料的水力传导率。对于岛屿情况，开垦会取代地下水分配并改变整个岛屿的地下水状况。填海的意想不到的好处是增加了新鲜的地下水资源，因为开垦的土地可以成为额外的蓄水层，并且在更大的面积上可以补给雨水。

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