-
oa Soil erosion magnetic measurements as a tool for landslides studies
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Second EAGE Workshop on Assessment of Landslide Hazards and impact on communities, Sep 2020, Volume 2020, p.1 - 6
- Previous article
- Table of Contents
- Next article
Abstract
One of the biggest challenge all over the world is assessment of the natural and anthropogenic hazards. Landslides are one of the most dangerous processes, which is related to the accelerated linear erosion and hydromorphism of the soil. Magnetic method is low cost and rapid instrument for the soil erosion identification. The main parameter to access soil erosion is magnetic susceptibility χ (MS). The soil erosion was studied on the example of the agro-physical observation point “Slobozhansky” (Balakliysky district, Kharkiv region). Study area is characterized by significant vertical dissection of the terrain and the spread of erosion processes. We registered the decrease in MS values, which correspond to the eroded areas, the lower part of the slope and the runoff basin. Much more complicated is the interpretation of the magnetic characteristics of soils in cases of the combined impact to the soil degradation. Among the main factors, which have strong impact on soil magnetism, are combined hygromorphic and halomorphic processes. Such processes were studied at the area of the valley of the Sula River (Lokhvytskyi district, Poltava region). The MS of chernozem deep-leached soil at the depression is much lower (over 60%) than the background MS of the chernozem deep residual-deep-saline soil.