Erosão do solo e dimensionamento de faixa ciliar em sistemas de uso do solo na região sul da Bahia

• Autor(a) principal: INÁCIO, Euzelina dos Santos Borges
• Data de Publicação: 2005
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
• Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4946
• topic: Solo; Erosão; Faixa ciliar; Erosion; Soil; AGRONOMIA::CIENCIA DO SOLO

The water erosion is one of the main soil degradation procedures and is highly affected by the soil cover and the land slope. The objective of the present work is to quantify the detachment rate and the soil loss due to water erosion under simulated rains in the pastures, as well as to study the effect of land cover and the slope classes ( 9%, 10 –15%, 25 – 30% and 35 – 40%) on the soil loss in the hydrographic Ribeirão Salomea´s catchment. Each treatment was replicated four times. Thirty-two simulated rains were applied in plots delimited by galvanized metallic foils fixed in the soil and having a gutter at their lower part for runoff sampling. The results showed that the land cover influenced soil loss only within each slope classes. Soil losses increased with increasing slope classes. This phenomenon was higher in uncovered land than the covered ones. The erodibility was 1.48 x 105 kg-1s-1m-1 for Molissol studied.