Relation between the soil's hydro-physical attributes and the land use as subsidy to the use and management of soil and water in the Pirapó river drainage basin

inadequate management has been promoting its degradation and creating conditions favorable to the action of the agents of erosion. In face of this, this works objective is studying the Red Latososl and Red Nitosols of clayey texture in the Pirapó drainage basin, pointing the effects of the different forms of use and occupation in the hydro-physical behavior of these soils. Physical analysis of soil density, total porosity, macroporosity, microporosity, granulometry and aggregate stability were conducted, along with water analysis of infiltration rate and hydraulic conductivity, plus a chemical analysis of organic carbon. The results indicate the Latosols and Nitosols under grain crops are more sensitive to the changes caused by the type of use, with alteration of is hydro-physical attributes, making the search for the correct soil management necessary for maintenance of the water quality and sustainability of the drainage basin.