Transmission losses, infiltration and groundwater recharge through ephemeral and intermittent streambeds: A review of applied methods
Transmission losses, infiltration and groundwater recharge through ephemeral and intermittent streambeds: A review of applied methods
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DOI：
10.1016/j.jhydrol.2014.01.068
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发表时间：
2014-04
影响因子：
6.4
通讯作者：
M. Shanafield;P. Cook
中科院分区：
文献类型：
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作者：
M. Shanafield;P. Cook
含水层通过短暂的河床补给被认为是干旱地区地下水补给的主要来源；然而，对这种溪流补给进行量化的研究相对较少。这篇综述综合了全球干旱地区现有的野外含水层补给文献。综述了7种定量确定短暂和间歇性河流入渗和含水层补给的方法：控制入渗实验、监测水分含量变化、作为入渗示踪的热量、到达长度水平衡、洪水波前锋跟踪、地下水堆积和地下水测年。通过文献中的例子说明了每种方法的时间和空间尺度，以及每种方法的优点和局限性。这些方法之间的比较被用来强调每种实地方法的适当使用，强调在一项研究中使用多种方法的优点，以避免任何单一方法固有的潜在缺点。确定了研究需求，包括：定量不确定性分析、长期数据收集和分析、对河岸植被作用的了解、传输损失和渗透估计与实际含水层补给的协调。
Aquifer recharge through ephemeral streambeds is believed to be a major source of groundwater recharge in arid areas; however, comparatively few studies quantify this streamflow recharge. This review synthesizes the available field-based aquifer recharge literature from arid regions around the world. Seven methods for quantifying ephemeral and intermittent stream infiltration and aquifer recharge are reviewed; controlled infiltration experiments, monitoring changes in water content, heat as a tracer of infiltration, reach length water balances, floodwave front tracking, groundwater mounding, and groundwater dating. The pertinent temporal and spatial scales, as well as the advantages and limitations of each method are illustrated with examples from the literature. Comparisons between the methods are used to highlight appropriate uses of each field method, with emphasis on the advantages of using multiple methods within a study in order to avoid the potential drawbacks inherent in any single method. Research needs are identified, including: quantitative uncertainty analysis, long-term data collection and analysis, understanding of the role of riparian vegetation, and reconciliation of transmission losses and infiltration estimates with actual aquifer recharge.