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<br />Permeability of the Louviers soil is slow. Available water <br />capacity is very low. Effective rooting depth is 10 to 20 inches. <br />Runoff is very rapid, and the hazard of water erosion is very high. <br />Tha Travassilla soil is shallow. and well drained. It formed ~n <br />residuum derived dominantly from sandstone. Slope is 20 to 50 <br />percent. Typically, the surface layer is light brown channery loam <br />about 4 inches thick. Tha substratum is channery loam about 10 inches <br />thick over sandstone at a depth of 14 inches. Tha soil is moderately <br />alkaline. <br />Permeability of the Travassilla soil is moderate. Available water <br />capacity is very low. Effectiv• rooting depth is 4 to 20 inches. <br />Runoff is rapid, and the hazard of water erosion is very high. <br />This unit is used for honeommercial woodland, livestock grazing, <br />and wildlife habitat. Slop• limits access by livestock to steeper <br />• areas and results in overgrazing of the less sloping areas. <br />The potential plant community is mainly pinyon and uuniper and an <br />understory of Scribner naedlagrass, western wheatgrass, blue grams, <br />sidaoats grams, Gambel oak, and mountainmahogany. Tha potential <br />production of the native understory vegetation in normal years is <br />about 300 pcunds of air-dry vegetation per acre. If th• condition of <br />the understory deteriorates, red threeawn, blue grams, pricklypear, <br />and other fortis and shrubs increase. <br />Woodland products such as firewood, fenceposts, and pinyon nuts <br />are produced on this unit. Only foot slopes and ridges generally are <br />accessible. Steepness of slope limits harvesting in the other area. <br />Tha use of tree spades for removal of transplants is severely limited. <br />:~ <br />i, <br /> <br />~~S <br />