A slope with a soil sequence over sandy Perm-Carboniferous sediments from the Itararé Formation with clayey oxidic soils was studied. This area is representative of the low hills with smooth relief of the low valley from the Piracicaba river. The area is located in the Piracicaba municipality about 22o 47’S & 47o 35’W within São Paulo State Peripheral Depression. The sequence comprises a clayey Dark-Red Latosol (Rhodudox), on the hill top transitioning downwards to a Dark-Red Latosolic-Podzolic Intergrade (Rhodic Kandiudox). […]