Abstract

It devises the territorial diagnosis of the Andalién river basin (36° LS 71ºLO) through the model one geosystems of Bertrand (1978) valorised the dynamic and spatial interruptions that permit to evaluate the present state of the landscapes of the basin. Five units were recognized geosistémicas al interior of which diverse states of evolution value itself, according to the degree of stability morphogenetic what permitted to recognize geofacies stabilized, in progressive evolution, and in regressive evolution and geofacies destabilized and in rexistacia. The results of the diagnosis show that the relation among the natural systems with progressive evolution and in equilibrium is of 55%, a 24% of the basin presents a regressive evolution toward a state of rexistacia.