Conditions of Water Absorption into Soil and Its Infi ltration into Ground Waters at River Basins of Eastern Cuba

Abstract

The rivers of Eastern Cuba are characterized by small size, different orography, and moistening. Theoretical aspects of the conditions of absorption formation, values of absorption and infi ltration up to the level of the ground water in the river basins of Eastern Cuba are analyzed with the use of the genetic runoff theory and the linear-correlation model. The dependence of the absorption layer from the geomorphological factor makes it possible to distinguish the layer of surface detention from the general absorption layer before the beginning of water formation (the formation of gravitational water) and during the runoff. The dependence of the infiltration layer from the absorption layer turns out to be rather reliable. However, there is some value on the axis of the infiltration layer which characterizes the presence of the hidden infiltration layer when there is no absorption. It is supposed that in this case the surface and underground catchments are distinguished and there is water exchange between separate subterranean flows.