Denudation of cultivated lands of Southern Fergana

Abstract

The findings of investigations into erosion processes suggest the active cultivation of the land resulted in the erosion' acceleration (sheet wash, erosion due to irrigation). The rates of erosion are as high as 12 mm per war in case of mechanical cultivation and 10.3 mm per year if only manual cultivation used. Within non-cultivated areas (archeological objects) the rate of erosion does not exceed 0.08 to 0.09 mm/yr.