Caracterização mineralógica de Latossolos em diferentes feições do relevo na região de Jaboticabal, SP
Nenhuma Miniatura disponível
Data
2010-04-01
Autores
Montanari, Rafael
Marques Junior, Jose [UNESP]
Costa Campos, Milton Cesar
de Souza, Zigomar Menezes
Camargo, Lívia Arantes [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Federal Ceara, Dept Geol
Resumo
Different surface land form expressed by the relief can cause variations in soil properties in different magnitudes, depending mainly on a specific location in the landscape. Therefore, the objective of this study was to make the mineralogical characterization of Oxisols in different relief forms in the region of Jaboticabal, SP. Three trenches were opened in the convex, linear and concave landforms, done morphological description of the soil horizons and collected soil samples for physical, chemical and mineralogical characterization. It was found that the oxidic mineralogy is dependent on the type of landform, with the dominance of goethite on the concave landform and hematite on the linear landform. The desferrific clay minerals exhibited dominance of gibbsite in the concave, compared to convex and linear landforms that were dominated by the kaolinitic mineralogy.
Descrição
Palavras-chave
Landscape form, pedogenesis, Soil mineralogy
Como citar
Revista Ciência Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 41, n. 2, p. 191-199, 2010.