This study was accomplished in the microbasin of Bom Jesus stream, in Cidade Gaścha town, at the northwest area of Parana State - Brasil. It aimed to characterize a physico-hydric performance of a dominant pedologic system in such area, which is constituted of dark reddish Latosol (LE), dark reddish Podzolic soil (PE) and quatz sands (AQ), distributed along the slope.

The vetical and lateral morphologic characterization of the horizons along the representative topsequence was proceeded, followed by infiltration measures through mult-disk infiltrometer (unsaturated hydraulic conductivity or K) and then granulometrical analyses.

The results revealed that K is elevated and relatively constant in LE at the upperslope, lightly decreased in depth at Bw; smaller in PE, different in the profile, diminished in surface througt landuse compaction and the presence of the Bt horizon, associated to the clay and microporosity increase; notably increasing downslope, both at surface horizons (A, E) and their contact with Bt, promoting the development of thick washed sandy horizon which will turn into AQ.

Such performance was attributed to the morphologic differentiation of the pedologic system, where the hydric flows seem to be harmonious to the current slope, allowing it to be interpreted as a lateral pedologic transformation and associated to a strong linear erosive suceptibility.