In the Western Ghats of India, the soil properties, particularly Atterberg limits, are of relevance to the landslides. Pedogenic processes in the Western Ghats and plateaus on it are regulated by parent materials, relief (topography), organisms, climate, and time. In this study, the five major soils found within the mid-part of the Western Ghats in the Idukki district of Kerala, Southern India was analyzed for elucidating physical, chemical, and geotechnical properties (Atterberg limits) on landslides potentiality or slope failure processes. The result reveals that the highly weathered lateritic soils noted with lower KCl pH (3.6–4.6), low-cation exchange capacity (3.1 to 19.6 cmol( +) kg⁻¹), low-effective cation exchange capacity (0.8 to 10.7 cmol( +) kg⁻¹) and a negative ∆pH value indicate the presence of variable charge minerals such as amorphous sesquioxides. The variable ranking of random forest revealed that the soil Atterberg limits were significantly influenced by Citrate Bicarbonate Dithionite (CBD) iron, sand fractions, and organic carbon. The layer of porous sandy soils showed lower Atterberg limits due to accentuate with clay matter, whereas the illuvial layer (Bt) have noted as higher Atterberg limits that lead to potentially collapsing gullies or triggering mass movement during heavy rainfall followed by intensive runoff due to instability of soil mass within proxy of the steeply sloping surface. Soil geotechnical properties such as liquid limit, plastic limit, and plasticity index are the main characteristics that decide the slope stability and failure in various parts of the study area, whereas the soil profile morphometry has significantly associated with the occurrence of landslides with the plastic limit value between 28.01 and 40.48. It was noticed that the failed slopes have a higher value than stable slopes along with the hill-range topography, with soil particle sizes range of silt and clay (8.79 to 36.17 and 22.31 to 57.74%) with the measurement of liquid limit (40.05 to 68.4), plastic limit (24.2 to 43.94), and plasticity index (7.81 to 24.8). This indicates that the pedogenesis of the weathering profile of soils have significantly influenced the Atterberg limits that triggering slope failure or landslides along the gullies and weathered lateritic uplands.

在印度的西高止山脉，土壤性质，特别是阿特伯格的界限，与滑坡有关。西高止山脉和高原上的成岩过程受母体材料，地形（地形），生物，气候和时间的调节。在这项研究中，分析了印度南部喀拉拉邦Idukki区西高止山脉中部发现的五种主要土壤，以阐明滑坡潜力或边坡破坏过程的物理，化学和岩土特性（阿特贝格极限）。结果表明，高风化红土土壤的KCl pH值较低（3.6-4.6），阳离子交换容量低（3.1至19.6 cmol（+）kg ^-1），有效阳离子交换容量低（0.8至10.7 cmol（ +）千克^-1）和∆pH负值表示存在可变电荷的矿物质，例如无定形的倍半氧化物。随机森林的可变等级表明，土壤阿特堡界限受柠檬酸重碳酸盐连二亚硫酸盐（CBD）铁，砂分和有机碳的影响很大。多孔砂质土壤层由于粘土物质的加重而显示出较低的阿特贝格极限，而滴灌层（Bt）已指出较高的阿特贝格极限，可能导致暴雨期间塌陷的沟壑或触发物质运动，然后由于不稳定而导致大量径流陡坡地表内的土壤质量变化。土壤岩土特性，例如液体极限，塑性极限，塑性和塑性指数是决定研究区域各个部分的边坡稳定性和破坏的主要特征，而土壤剖面形态与滑坡的发生密切相关，塑性极限值在28.01至40.48之间。值得注意的是，随着坡度的变化，不合格的边坡比稳定的边坡具有更高的价值，土壤颗粒大小范围为淤泥和粘土（8.79至36.17和22.31至57.74％），其液体限度为（40.05至68.4），塑性极限（24.2至43.94）和可塑性指数（7.81至24.8）。这表明土壤的风化作用的成因作用已显着影响了Atterberg极限，该极限触发了沿沟壑和风化的红土高地的边坡破坏或滑坡。而土壤剖面形态与滑坡的发生有显着联系，塑性极限值在28.01至40.48之间。值得注意的是，随着坡度的变化，不合格的边坡比稳定的边坡具有更高的价值，土壤颗粒大小范围为淤泥和黏土（8.79至36.17和22.31至57.74％），测量的液体极限值为（40.05至68.4），塑性极限（24.2至43.94）和可塑性指数（7.81至24.8）。这表明土壤的风化作用的成因作用已显着影响了Atterberg极限，该极限触发了沿沟壑和风化的红土高地的边坡破坏或滑坡。而土壤剖面形态与滑坡的发生有显着联系，塑性极限值在28.01至40.48之间。值得注意的是，随着坡度的变化，不合格的边坡比稳定的边坡具有更高的价值，土壤颗粒大小范围为淤泥和粘土（8.79至36.17和22.31至57.74％），其液体限度为（40.05至68.4），塑性极限（24.2至43.94）和可塑性指数（7.81至24.8）。这表明土壤的风化作用的成因作用已显着影响了Atterberg极限，该极限触发了沿沟壑和风化的红土高地的边坡破坏或滑坡。值得注意的是，随着坡度的变化，不合格的边坡比稳定的边坡具有更高的价值，土壤颗粒大小范围为淤泥和粘土（8.79至36.17和22.31至57.74％），其液体限度为（40.05至68.4），塑性极限（24.2至43.94）和可塑性指数（7.81至24.8）。这表明土壤的风化作用的成因作用已显着影响了Atterberg极限，该极限触发了沿沟壑和风化的红土高地的边坡破坏或滑坡。值得注意的是，随着坡度的变化，不合格的边坡比稳定的边坡具有更高的价值，土壤颗粒大小范围为淤泥和粘土（8.79至36.17和22.31至57.74％），其液体限度为（40.05至68.4），塑性极限（24.2至43.94）和可塑性指数（7.81至24.8）。这表明土壤的风化作用的成因作用已显着影响了Atterberg极限，该极限触发了沿沟壑和风化的红土高地的边坡破坏或滑坡。