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SOIL MAPPING UNIT NO. 7: Loup-Boel loamy sands - 0-3% slopes. <br />• This mapping unit consists of deep, somewhat poorly and poorly-drained soils that <br />formed in sandy alluvium. It occupies bottoms and drainageways. Slopes range from 0 to <br />3 percent. <br />Loup soils makeup about 55 percent of the unit. The Boel soils occupy the <br />slightly higher elevations and make up about 35 percent of the unit. About 10% of the <br />unit is made up of Osgood and Valent sand. - <br />The Loup soil is deep, poorly-drained, formed in sand alluvium. Typically the <br />surface layer is very dark grayish brown, mottled, loamy sand. This is underlain by about <br />24 inches of light brownish gray, mottled, loamy sand. Underlying this layer to a depth of <br />60 inches is a light brownish gay, mottled, sandy loam. Permeability is rapid. Available <br />water capacity is moderate. Normally a water table is present at or near the surface in the <br />fall. Surface runoffis slow and water erosion hazard is low. Wind erosion is potentially <br />high on disturbed areas. <br />The Boel soil is deep, somewhat poorly-drained formed in stratified sandy <br />alluvium. Typically the surface layer is grayish brown, loamy sand about 14 inches thick. <br />Underlying this surface layer to a depth of 60 inches is pale brown, stratified, mottled, <br />loamy sand. <br />• Range Site Name: Sandy Meadow Range Site <br />Soil Capability Classification: Imgated: IVe <br />Non-irrigated: VIe <br />Evaluation of Field and Laboratory Soil Data <br />All soil materials are highly susceptible to wind erosion. Both the surface soils, <br />which are higher in organic matter and the subsoils of the Osgood series which are <br />slightly finer-textured offer the greatest potential for minimizing wind erosion in a <br />reclamation effort. <br />Particle size analyses and soil moisture determinations show that the materials <br />with the highest available water holding capacity occur within the B horizons of <br />the Osgood soils. Sand sieve analyses show that the very fine sand content is <br />somewhat higher in the surface soil of the Osgood series than in the Valent. <br />• <br />