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首页> 外文期刊>International Journal of Geosciences >Protective Capacity Assessment of Vadose Zone Material by Geo-Electrical Method: A Case Study of Pakistan
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Protective Capacity Assessment of Vadose Zone Material by Geo-Electrical Method: A Case Study of Pakistan

机译：地电法评估渗流带材料的保护能力：以巴基斯坦为例

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Rapid and poorly managed agricultural landuse in Punjab plain is a major contention in groundwater quality deterioration. This study is focused on the determination of groundwater vulnerability potential of vadose material using geo-electrical method. Total of eight electrical resistivity soundings with Schlumberger electrode configuration are taken near Khizarabad Dairy Form, district Sargodha. The instrument ABEM Terrameter SAS 300 is used for data acquisition. The quantitative interpretation is done by 1D modelling of resistivity soundings by using IX1D software. The results characterize the area into three geo-electrical layers as dry alluvium (15.7 - 32.4 Ωm), saturated alluvium with high resistivity (10 - 20 Ωm) and low resistivity (>10 Ωm). Aquifer vulnerability is assessed by calculating Dar Zarrouk parameter (Longitudinal Conductance) and thickness of vadose zone. Resultant vulnerability is divided into three zones as low (>3.8 siemens) moderate (1.6 - 2.5 siemens) and high (<1.6 siemens). It is concluded from this study that Vertical Resistivity Sounding (VES) can be used for vulnerability assessment of an unconfined sandy alluvial aquifer from agricultural contaminants.
机译：旁遮普平原快速且管理不善的农业土地利用是造成地下水水质恶化的主要原因。这项研究的重点是利用地电法确定渗流物质在地下水中的潜在脆弱性。在萨戈达（Sargodha）地区的Khizarabad Dairy Form附近，采用斯伦贝谢电极配置的总共八种电阻率测深。 ABEM Terrameter SAS 300仪器用于数据采集。定量解释是使用IX1D软件通过电阻率测深的一维建模完成的。结果将区域划分为三个地电层，分别是干冲积层（15.7-32.4Ωm），饱和冲积层，高电阻率（10-20Ωm）和低电阻率（> 10Ωm）。通过计算Dar Zarrouk参数（纵向电导）和渗流带厚度来评估含水层的脆弱性。产生的漏洞分为三个区域，即低（> 3.8西门子），中（1.6-2.5西门子）和高（<1.6西门子）。从这项研究得出的结论是，垂直电阻率测深（VES）可用于评估农业污染物引起的无限制砂质冲积含水层的脆弱性。

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