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• Typically the surface layer is grayish brown fine sandy loam about <br />2 inches thick. The upper part of the subsoil is grayish brown clay loam <br />about 6 inches thick. The lower part of the subsoil is highly saline light <br />brownish gray silty clay about 26 inches thick. The substratum is highly <br />saline light brownish gray silty clay to 60 inches or more. <br />Permeability is very slow. Available water capacity is high. Effective <br />rooting depth is 30 to 40 inches. Surface runoff is medium and erosion hazard <br />is slight. <br />Most of the acreage is rangeland and is used for livestock grazing and <br />wildlife habitat. <br />X8D--Winevada-Splitro complex, 3 to 25 percent slopes. This map unit is <br />on mountainsides. Elevation is 6,900 to 8,400 feet. The average annual <br />precipitation is 18 to 25 inches, the average annual air temperature is 31 to <br />40 degrees F, and the frost-free season is 45 to 60 days. <br />• This unit is 60 percent Winevada soil and 30 percent Splitro sail. The <br />components of this unit are so intermingled that it was not practical to map <br />them separately at the scale used. <br />Included in this unit are small areas of Coutis fine sandy loam and <br />Unnamed (68) sandy loam. <br />The Winevada soil is moderately deep. It formed in well drained residuum <br />and aluvium derived dominantly from sandstone. Typically, the upper surface <br />layer is very dark gray fine sandy loam about 4 inches thick, and the lower <br />surface layer is dark grayish brown sandy clay loam about 24 inches thick. <br />Fractured hard sandstone is at a depth of 28 inches. Depth to sandstone <br />ranges from 20 to 40 inches. <br />Permeability of the Winevada soil is moderate. Effective rooting depth <br />ranges from 20 to 40 inches. Available water capacity is low. Runoff is <br />slow, and the hazard of water erosion is high. <br />• <br />Ex. 16-14 <br />