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5 <br />law rabbitbzvsh, and big sagebrush. The mean annual precipitation is 14 to 16 <br />inches, the mean annual air temperature is 36o to 39° F, and the frost-free <br />season is 30 to 40 days. <br />In a representative profile, the surface layer is pale brroam sandy loam <br />about 6 inches thick. aye upper part of the subsoil is broom heavy sandy loam <br />' about 4 inches thick, and the lower part is light olive bzvwn sandy clay loam <br />about 20 inr3les thick. aye underlying material is light yellowish brown lardy <br />Y loam. <br />Permeability is moderate, and the available Grater capacity is high. These <br />soils support vegetation that is used mainly for grazing. Some areas are used <br />for irrigated hay arri pasture. <br />are Fluetsch-Tiag~ association is ~- old alluvial fans, outwash tenaoes, <br />and valley sides. Slopes are 2 to 20 peroent. 'IIze association is about 45 <br />peroent Fluetsch sandy loam that has slopes of 2 to 15 percent and about 45 <br />percent Tiagos fine sandy loam that has slopes of 2 to 20 percent. 'Ihe <br />proportion of each soil varies slightly from place to place. Fluetsch sarrly loam <br />has convex, more gentle slopes. aie Tiagos lardy loam is on side slopes and in <br />protected areas. Hoch soils have the profiles described as rep*+P~'+*ative of <br />their z~spective series. <br />Included with this assxiation in mapping are a few small areas of Tealsen <br />soils in saddles of ridges, Boller soils in small, mesalike areas, aryl shallow <br />QYortltestts on exp~ed ridges and maul of sardstase. Giese inclusions make up <br />abaft 10 peroent of this association. CYyorthents (steep), makes up about 5 to <br />20 percent of the association. <br />Runoff is medium on the Fluetsch soil and slow on the Tiagos soil. The <br />hazazrl of soil blowing is slight on the Fluetsrh soil and mrxierate on the Tiagos <br />soil, aie hazard of water erosion is moderate. <br /> <br />