Avaliação de processos erosivos hídricos em diferentes usos agrícolas, utilizando simulador de chuvas no ambiente de Cerrado

Abstract

Water erosion appears to be one of the most active agents in soil degradation, and several factors contribute to the drained and eroded rates. Thus, this study aimed to evaluate soil and water losses in different rural uses of the Triângulo Mineiro region (Maize, Soya, Pasture, Coffee, Cerrado and road), using a rainfall simulator applied in plots of 1 m2 , replicating rains of intensity of 62.22 mm / h in the time of 30 minutes, with collections of drainage and sediment every 5 minutes, in two seasons of the year (Winter - Summer). It is concluded that the different uses express singular dynamics in the face of precipitation, exposing distinct eroded and drained values, influenced by the variation of vegetation cover, vegetative stages of the crops, pedofauna, current and antecedent management, and soil physical conditions.