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..- ~x C ~ h <br />loisa <br />14--Barx fine sandy loam, 1 to 3 percent slopes. This deep, well <br />drained soil is on terraces and mesas. It formed in alluvium derived <br />dominantly from sandstone. The native vegetation is mainly grasses <br />and shrubs. Elevation is 5,300 to 6,800 feet. The average annual <br />precipitation is 10 to 14 inches, the average annual air temperature <br />is 46 to 48 degrees F, and the average frost-free period is 110 to 130 <br />days. <br />Typically, the surface layer is brown fine sandy loam about 2 <br />inches thick. The subsurface layer is reddish brown loam 3 inches <br />thick. The upper part of the subsoil is yellowish red or light <br />reddish brown sandy clay loam 18 inches thick. The lower 15 inches of <br />the subsoil is pinkish white loam. The upper 13 inches of the <br />substratum is very pale brown loam, and the lower part to a depth of <br />i 74 inches or more is pink loam. In some areas the surface layer is <br />loam or sandy clay loam. , <br />Included in this unit is about 10 percent Abra soils and 5 percent <br />Progresso soils. Also included are small areas of Clapper soils and <br />Nyswonger soils occurring in the small intermittent drainages. <br />Permeability of this Barx soil is moderate. Available water <br />capacity is high. Effective rooting depth is 60 inches or more. <br />Runoff is slow, and the hazard of water erosion is slight. <br />Most areas of this unit are used for livestock grazing and <br />wildlife habitat. A few areas are used for irrigated corn for silage, <br />pasture, small grains, alfalfa hay (fig, 3), and grass hay. <br />The potential plant community on this unit is mainly western <br />wheatgrass, sandberg bluegrass, Wyoming big sagebrush, and <br />needleandthread. The average annual production of air-dry vegetation <br />is about 850 pounds per acre. <br />/o ''3 <br />