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<br />. <br /> <br />'0fJ2182 <br /> <br />. <br /> <br />Entisols <br /> <br />. <br /> <br />Typic To rr iorthcn ls ,_~la;tey (sl~,:..~ lowL~:.c:;so_cJ.:~_~o~l.L...-^..:s~;_()_c:_~~~~J..?D_JJ) 3 J <br /> <br />(23,077 acres) <br /> <br />This association consists of gently sloping to steep soils on breaks <br /> <br />(3-25 percent slopes). Elevation ranges ,from 5,000-6,000 feet.. Average <br /> <br />annual precipitation is 8-10 inches; moisture regime is aridie.. Average <br /> <br />annual soil temperature at 20 inches is more than 47'F, but less than <br /> <br />59'F, mesic, and frost-free season is about 120-140 days. <br /> <br />The association has about 90 percent Typic Torriorthents and about <br /> <br />10 percen~ of unidentified minor soils; they are located at Rangely in Rio <br /> <br />Blanco County. <br /> <br />Typic Torriorthents are shallow, well-drained soils on sedimentary <br /> <br />rocks', Typically they have a light-colored, calcareous, salty, clayey surface <br /> <br />layer, Al horizon, less than 7 inches thick, The substratum, 7-20 inch <br /> <br />layer, ,C horizon, is a light-colored, calcareous, salty, and clayey material. <br /> <br />The underlying material is fractured shale. Permeability is slow; effective <br /> <br />rooting depth is less than 20 inches. Available water capacity is low-very' <br /> <br />low; surface runoff is rapid-very rapid; erosion hazard is high-very high, <br /> <br />The sediment yield from this association is 1.0-3.0 acre-feet/square <br /> <br />mile/year. These soils are mainly used for urban development, range, and <br /> <br />wildlife. General vegetative type is saltbush. Reclamation potential is <br /> <br />poor due to excess salts and droughtiness. <br /> <br />Vstic Torriorthents, loamy-Borollic Camborthids, loamy Association, <br /> <br />Association 1134, (416,743 acres) <br /> <br />This association consists of gently sloping to moderately steep soils <br /> <br />on alluvial fans and' floodplains (3-25 percent slope). Elevation ranges <br /> <br />\1,. <br />" <br /> <br />I,' <br />j: <br />~ ' <br /> <br />8 <br /> <br />/1,: <br />; ~i <br />:( <br /> <br /> <br />...;; <br />