ON THE CORRESPONDENCE OF EROSIONAL SOIL LOSS MODELS AND THE RESULTS OF FIELD STUDIES IN MOUNTAIN AREA OF ECUADOR

The content of organic substance in soils on the slopes of the studied key areas in Pichincha Province, Ecuador varies from 0.53 % to 0.80 % and does not change significantly on the surfaces with slope angle from 5° to 25°. The data on soil losses due to erosion, obtained using mathematical model, for the same key areas do not correspond to the data of field studies and are uprated for steeply inclined surfaces of slopes of the equatorial Andes.