GEOENVIRONMENTAL UNITS IN HIDROGRAPHIC BASIN OF THE ITU RIVER - WEST OF THE STATE OF RIO GRANDE DO SUL, BRASIL por Trentin, Romario, Robaina, Luís Eduardo de Souza

“…The work defined 9 units as those with homogeneous characteristics from dynamic surface processes, which are: unity of recent deposits, sandstone hills, hills of volcanic rocks, flat tops, sandstone buttles of the sandstones, buttles of volcanic rock, steep topography, urban use, processes of sands. …”
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Assessment of Soil Erosive Fragility Using Cross Mapping with Support of the Geographic Information System in the Municipality of São Francisco de Assis/RS/Brazil por Oliveira, Mariana Xavier de, Trentin, Romario, Robaina, Luis Eduardo de Souza

“…In the municipality, areas with medium erosive fragility occur at the extreme NE-E and NW, formed by soils on volcanic rocks or sandstone with volcanic contribution where the predominant uses agricultural. …”
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