Aspectos hídricos de alguns solos da Amazônia - Região do baixo rio NegroSome relationship between climatological data, available water and saturated hydraulic conductivity of nine representative soil profiles of the low rio Negro, Amazon State region, were studied. The results shows a relatively low available water retention of all soils studied. A faturated hydraulic conductivity of 35 mm.h-1 was the mean value obtained. This means that rains with the intensity of 35 mm.h-1 or more, will be converted almost exclusively into run-off water.