An experimental study of water table recharge by seepage losses from a ditch with intermittent flow
An experimental study of water table recharge by seepage losses from a ditch with intermittent flow
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间歇流沟渠渗漏损失补给地下水位的实验研究
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
X. Louchart
中科院分区：
文献类型：
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作者：
C. Dagès;M. Voltz;J. Lacas;O. Huttel;S. Négro;X. Louchart
地中海地区的农业集水区经常有密集的沟渠网，这些沟渠也是地下水位补给的优先区域，因此也容易受到地下水污染。本研究对典型的地中海径流事件中位于浅地下水位以上的沟渠的渗漏损失和相关地下水补给模式进行了实验分析。目的是(i)评估通过沟渠渗流补给地下水位的模式，（ii）研究补给过程中发生的主要流动过程，以及（iii）在沟渠中污染水流的情况下估计溶质传播。
Farmed catchments in the Mediterranean area often exhibit dense networks of ditches which are also preferential zones of water table recharge, and thereby of groundwater contamination. This study presents an experimental analysis of seepage losses and related groundwater recharge patterns during a typical Mediterranean runoff event at the scale of a ditch located above a shallow water table. The objectives were (i) to evaluate the patterns of water table recharge by seepage in a ditch, (ii) to study the main flow processes occurring during recharge, and (iii) to estimate solute propagation in case of contaminated flow in the ditch.