Abstract：
Soil degradation, characterized by the deterioration of soil physical and chemical properties, nutrient loss, and an increase in toxic substances, is a key ecological concern in mining activities. This study explores the use of waste black shale from mining development as an additive to loess to enhance soil properties for reclamation in mining areas. The research includes resistivity and organic carbon content tests on modified reclaimed loess with varying black shale and water contents. Additionally, the electrical properties of these modified soils are investigated across different AC frequencies. The results highlight the significance of soil plasticity and a 1.5% black shale content in influencing reclaimed loess\'s electrical properties. Moisture content and black shale influence changes in soil conductive paths and resistivity. The abundance of clay minerals in black shale plays a crucial role in altering soil electrical resistivity due to the adsorption of cations in water and the directional transport under an electric field. Considering soil\'s three-phase composition and diffuse bilayer structure, the study elucidates the mechanism behind changes in the electrical properties of improved reclaimed loess, accounting for water and black shale content. This research demonstrates the feasibility of using black shale as a soil additive and emphasizes the non-destructive assessment potential of electrical resistivity test (ERT) measurements for modified reclaimed soils.
摘要：
土壤退化,以土壤理化性质恶化为特征，营养流失,有毒物质的增加，是采矿活动中一个关键的生态问题。这项研究探讨了将采矿开发中的废黑色页岩用作黄土的添加剂，以增强矿区复垦的土壤性质。研究包括不同黑色页岩和含水量的改性再生黄土的电阻率和有机碳含量测试。此外,在不同的交流频率下研究了这些改性土壤的电性能。结果强调了土壤可塑性和1.5％黑色页岩含量对再生黄土电学性质的影响。含水率和黑色页岩影响土壤导电路径和电阻率的变化。由于阳离子在水中的吸附和电场作用下的定向传输，黑色页岩中粘土矿物的丰度在改变土壤电阻率中起着至关重要的作用。考虑到土壤的三相组成和扩散双层结构，这项研究阐明了改良再生黄土电性能变化的机理，考虑水和黑色页岩含量。这项研究证明了使用黑色页岩作为土壤添加剂的可行性，并强调了改性再生土壤的电阻率测试（ERT）测量的无损评估潜力。
