Differentiated characterization of karst aquifers: some contributions
Differentiated characterization of karst aquifers: some contributions
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DOI：
10.1007/s13146-013-0150-9
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发表时间：
2013-05-01
影响因子：
1.4
通讯作者：
Sauter, Martin
中科院分区：
文献类型：
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作者：
Geyer, Tobias;Birk, Steffen;Sauter, Martin
由于水文地质标准测试方法的调查半径较小，岩溶含水层的表征仍然是一个挑战。岩溶输水系统的发育，在岩溶含水层的水力参数场中引入了导水率反差较大的因素。它导致了复杂的流动模式和运输现象，显着不同于在多孔和裂隙介质中观察到的。当在本地时，即，在钻孔尺度上，岩溶含水层的裂隙基质可以被视为一个连续体，在区域上，即，在集水区尺度上，含水层系统的排水由管道系统控制，管道系统可能具有高度各向异性的几何形状。因此，岩溶含水层的表征需要通过结合各种水文地质现场方法或应用大规模测试（涵盖主要含水层非均质的规模）来采取有区别的方法。现有的数值模拟方法可以应用于流域尺度的整体数据解释。
Because of the small radius of investigation of hydrogeological standard testing methods, the characterization of karst aquifers is still a challenge. The development of a karst conduit system introduces an element of large contrast in hydraulic conductivity in the hydraulic parameter field of a karst aquifer. It leads to complex flow patterns and transport phenomena that differ significantly from those observed in porous and fissured media. While on a local, i.e., borehole scale, the fissured matrix of karst aquifers can be regarded as a continuum, on a regional, i.e., catchment scale, the drainage of the aquifer system is controlled by the conduit system, which may have a highly anisotropic geometry. Therefore, characterization of karst aquifers requires a differentiated approach by the combination of various hydrogeological field methods or the application of large-scale tests, which cover the scale of dominant aquifer heterogeneities. Existing numerical modeling approaches can be applied for integral data interpretation on catchment scale.