Variação sazonal da resistividade em latossolos

Abstract

The purpose of this work is to present a procedure for survey of soils, based on DC electrical resistivity. The study area has 5 km2 and is located at Jardim Botânico de Brasilia, an environmental conservation area. The results show that clay rich soils are less resistive than sandy soils, independently of moisture condition, and that apparent resistivity variation is larger in sandy soils than in clay rich soils. This fact shows that it is possible to use electrical resistivity measurements like a procedure for to separate clay rich and sandy soils.