Navegando por Autor "Rodrigues, Eduardo Henrique Ribeiro"

Agora exibindo 1 - 1 de 1
  • Imagem de Miniatura
    Dissertação
    Acesso aberto (Open Access)
    Infiltração da água em solos sob diferente uso
    (Universidade Estadual do Norte do Paraná, 2018-12-16) Rodrigues, Eduardo Henrique Ribeiro; Reis, Luiz Carlos; https://orcid.org/0000-0003-2193-8535; http://lattes.cnpq.br/4310404758664835; Reis, Luiz Carlos; https://orcid.org/0000-0003-2193-8535; http://lattes.cnpq.br/4310404758664835; Reis, Teresinha Esteves da Silveira; http://lattes.cnpq.br/5705088234641018; Lima, Julião Soares de Souza; https://orcid.org/0000-0002-8178-3937; http://lattes.cnpq.br/4456536143814608
    Knowing the process of infiltration of water into the soil becomes important to carry out the agricultural planning, irrigation sizing, drainage and establishment of methods of soil conservation. The objective of this study was to analyze the infiltration of water in Eutrophic Red Latosol (LVef) and Eutrophic Red Nitosol (NVef) under different uses, being a permanent preservation area (PPA), direct seeding (DS) and pasture (PT), sugarcane area (SC) and coffee area (CF) in LVef. The infiltration of concentric rings was used for the infiltration tests, which determined the infiltration rate (IR) and accumulated infiltration (I) through the empirical models of Kostiakov and Kostiakov-Lewis as well as an adjusted model. Physical parameters, such as total porosity, macro and microporosity, and soil density, determined from undisturbed soil samples were determined. And from the Stolf impact penetrometer we identified the soil layers with the highest soil mechanical resistance to penetration (MRP). In all areas, three replications were performed for the water infiltration tests, as well as three undisturbed soil samples collected and the MRP analyzed in three replicates. PPA was the site where the highest IR (0.68 cm m-1) and I (157.4 cm) occurred, followed by PT (132.6 cm m-1 and 0.61 cm), CF (80.2 cm-1 and 0.38 cm) and PT (77.8 cm m-1 and 0.35 cm). The areas of DS and SC had lower values of IR and I, 11.7 cm m-1 and 0.08 cm and 21.1 cm m-1 and 0.11 cm respectively, where it was also identified on the surface (0, 0 - 0.10 m) lower macroporosity value (8% for both) and higher MRP in the depth of up to 0.20 m. PPA, PT and CF had higher AMSY from the 0.20 m depth. The infiltration of water into the soil and the MRP are related to the other physical factors studied.