The vegetative cover has great influence in the run off processes, because it acts in the regime of the waters, in the characteristics of the soil, in the declines and in the mechanism hydrologic, delaying and deviating ...

A Digital Elevation Model (DEM) for the State of São Paulo was made using digital images of ASTER sensor having a spatial resolution of 30m. This model was compared statistically using the Kolmorov-Smirnov test with other ...

That work aimed the elaboration of the use shart of Rio Claro basin, Municipal district of Pratânia and São Manuel - SP, seeking the adapted planning of the occupation of the soil, used of System Geographical Information ...

Cartographic and thematic databases available in Brazil are restricted to urban centers and areas of strategic interest, because of the high cost of its attainment. Between 1981 and 1983 an soil management researches was ...

The Global positioning system in the area of Agrarian Sciences has been used for topographical surveys, land use mapping, and it has being of extreme importance for agriculture of precision, surveying and geographic ...

The morphometric analysis of the drainage net in watersheds has as main objective to develop the knowledge of the relations between the cause and the effect that has been established in the geologic and hydrologic ...

The objective of this work was examine the possibility to use a chlorophyll meter in the detection of status nitrogen (N) deficiency. the work was conduced in the city of Viçosa, with geographical coordinates of 20°45’54’’ ...

There is a clear conflict between the reservoir utilization for control and use multiple of the water mainly for electric power generation. In order to control the floods, it is necessary to predict the availability of ...

Wormcomposting is adopted in the treatment and stabilization of the rural and urban organic residues, creating a organic fertilizer utilized in the soil fertilization, providing improvement in the biologys, chemistrys ...

In the wetlands (SACs), the water is purified by physical, chemical and biological mechanisms. The biological treatment is given by the contact of the residuary water with the surface of the substratum and roots, ...