Determinação de Potencial Erodível em Diferentes Morfologias de Vertentes na Amazônia por Métodos Físico, Químico e Mecânico de Solos

• Autor(a) principal: Santos, Salem Leandro Moura dos
• Data de Publicação: 2023
• Outros Autores: Silva Filho, Eliomar Pereira da
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Geografia (Londrina)
• Texto Completo: https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/48535

  ABSTRACT: This study aims to quantize the erodibility in an Oxisoil associated with three different slope morphologies (Convex, Rectilinear and Concave), located in the  Belmont basin stream, in Porto Velho city – RO, Brazil. The slopes were classified into Upper, Middle and Lower thirds. In each third, soil analyzes were carried out up to a depth of 150cm. Soil erodibility was determined by Granulometry, Plasticity Index – IP, Variation of Apparent Cohesion and by Hydrogenionic Potential – pH and specialized through interpolation in GIS QGIS 2.18. The values of the evaluations indicated that the Convex slope presents the Lower Third, being the most erodible, from the surface to a depth of 80 cm; while in the Upper Third the smallest, only the superficial layer (0-20cm) is the most erodible. The Rectilinear Slope, showed a high potential for soil erodibility along the entire surface, with emphasis on the Lower and Middle Third, which presented a very erodible soil layer (0-55cm). For the Concave slope, a peculiarity was observed, as only the Upper and Lower Thirds presented soils with a high potential for erosion, from the surface to the depth of analysis.