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首页> 外文期刊>Indonesian Journal of Forestry Research >IMAGING TROPICAL PEATLAND AND AQUIFER POTENTIAL IN SOUTH SUMATERA USING ELECTRICAL RESISTIVITY TOMOGRAPHY
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IMAGING TROPICAL PEATLAND AND AQUIFER POTENTIAL IN SOUTH SUMATERA USING ELECTRICAL RESISTIVITY TOMOGRAPHY

机译：使用电阻率断层扫描成像在南萨默马州的热带泥炭地和含水层潜力

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Indonesia has one of the largest tropical peatland areas in the world. In Sumatra Island, peatland is spread over 11 areas and it was mainly found in Riau (60.1%) and South Sumatra (19.6 %) Provinces. This study investigates the subsurface of tropical peatland in Ogan Komering Ilir Regency, South Sumatra Province. Data was recorded using Electrical Resistivity Tomography (ERT) method based on the sub-surface images of tropical peatland. This study was conducted based on dipole-dipole configuration with 72 channels spread. This paper also studies the physical properties (thickness and electrical resistivity) of peatland and its substrate using ERT. In this study the ERT section and the geological map identified Alluvium (Qs), Kasai Formation, and the Basement. Result shows the ERT is applicable for imaging the thickness of tropical peatland and other geological features (Aquifer, geological structures, and stratigraphy). The electrical resistivity of peat varies from 20 ohm meter to 120 ohm meter and the thickness of peat varies from 2–5 meter. In some ERT sections, the basement was identified from 130 meter to 170 meter beneath the surface. The aquifer sweet spots were located from ERT Sections combined with the hydrogeological map. The aquifer was identified in Kasai Formation. The thickness of the aquifer layer is 2–20 meter. These physical properties may support the peatland conservation (forest fire mitigation) and geotechnical analysis purposes.
机译：印度尼西亚拥有世界上最大的热带泥土地区之一。在苏门答腊岛，泥炭兰开拓11个地区，主要发现在Riau（60.1％）和南苏立特（19.6％）省份。本研究调查了南苏达特拉省Ogan Komering Ilir Regency热带泥炭地的地下。使用基于热带泥炭地的子表面图像的电阻率断层扫描（ERT）方法来记录数据。该研究是基于偶极偶极组织进行的，具有72个通道。本文还使用ERT研究泥炭地及其基材的物理性质（厚度和电阻率）。在这项研究中，ERET部分和地质图鉴定了激增（QS），Kasai形成和地下室。结果表明，ERT适用于成像热带泥土和其他地质特征（含水层，地质结构和地层）的成像。泥炭的电阻率从20欧姆仪表变化至120欧姆仪表，泥炭厚度从2-5米变化。在一些ERT部分中，地下室在表面下方从130米识别到170米。含水层甜点从ERT部分与水文地质地图相结合。含水层是以kasai的形成确定的。含水层层的厚度为2-20米。这些物理性质可以支持泥炭地保护（森林防火）和岩土分析目的。

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