Greasewood and hopsage shrubs growing together on the same ground accumulated large amounts of sodium and potassium respectively. The decay of accumulated leaf litter beneath the canopy spread of these shrubs has altered the soil chemistry over about 20 per cent of the ground area. About 14 per cent of the surface soil area is being supplied with sodium and about 7 per cent of the area is being supplied with potassium. At the present time minerals are being supplied at a rate faster than they can be leached away. The location od shrubs needs to be considered when collecting soil samples for studies of effects of certain kinds of desert shrubs on chemical and physical properties of soil.