ABSTRACT Information is scarce on the genesis and classification of soils derived from calcareous rocks in the Northeastern region of Brazil. This study describes the morphological, physical, chemical, mineralogical, and micromorphological properties of four soil profiles (P1-P4) located in the Apodi Plateau. A pedogenesis hypothesis and soil classification, according to the Brazilian System of Soil Classification (SiBCS), are proposed for these profiles. The interactions between parent material, surface topography and climate affected the pedogenesis processes and soil properties, although the […]

Despite their importance and vulnerability, little is known about the soils in the calcareous karst systems in Brazil. The objective of this study was to evaluate the genesis of soils formed from calcareous parent materials and to characterize their properties, as a contribution to the Brazilian Soil Classification System (SiBCS). Three profiles located at footslope (P1), backslope (P2) and summit (P3) positions in a toposequence with slightly undulated relief, were studied in the Serra da Bodoquena, Mato Grosso do Sul […]