Soil magnetic susceptibility and surface topographic characteristics in cultivated soils

LAURA QUIJANO; LETICIA GASPAR; MANUEL LOPEZ-VICENTE; MARCOS A.E. CHAPARRO; JAVIER MACHÍN; ANA NAVAS

Tandil

Congreso; 2da. Segunda Reunión Bienal de la Asociación Latinoamericana de Paleomagnetismo y Geomagnetismo (LATINMAG); 2011

LATINMAG y UNCPBA

The spatial distribution of the concentration of magnetic soil minerals can be assessed through the characteristics of the surface topographic attributes. The topography of the land surface controls the pathways of runoff and the redistribution of soil that affect the spatial variability of magnetic minerals contained in the soil. In this contribution, the soil magnetic susceptibility has been studied with different surface topographic attributes in a small cultivated field in order to infer the relationships between the magnetic susceptibility measured in situ in the field and some physical characteristics of the land surface such as elevation, slope, concavity-convexity, plan curvature and aspect. These relationships can be used to describe the spatial pattern of the concentration of magnetic minerals in soils.