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This paper analyses the hydromorphological phenomena that different tilling types cause in the Rioja vineyards. Sorne information on water inflltration into the soil as well as relationships among precipitation, run-o.ff and so/id dragging and the granulometric changes caused in slopes. /s fave giren .from field research (in experimental plots). Sorne results are adduced, and the role displayed in the degradation of the vineyard cultivated soils by the d(f(erent tilling systems is discussed