CONTRIBUTIONS OF PFEIFFER’S CIRCULAR CHROMATOGRAPHY (CCP) FOR SOIL HEALTH CHARACTERIZATION IN DIFFERENT LAND USE AND OCCUPATION

Abstract

To characterize and compare the behavior of different soil substrates, Pfeiffer's Circular Chromatography technique (CPP) was employed. For this purpose, six different points were demarcated and georeferenced for sampling, respecting the limits of the Sorocaba campus (SP) of the Federal University of São Carlos - UFSCar, in order to obtain heterogeneous results in view of the different forms of use and occupation and different soil classifications. Following the sampling work, the samples were appropriately separated according to soil classification, which varies depending on the dynamics of flow and overlap along the western slope of the Córrego do Ipaneminha (Ipaneminha Stream) valley, where the campus is located. Subsequently, after sieving the substrates, chromatograms were generated, following the proposal by EMBRAPA. It was observed that these chromatograms differ in color, peak shape, plume shape, and integration between the zones along the flow, indicating differences in the composition of the collected samples, considering the environmental variables.