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• M11D =Traq loam, 3 to 9 percent <br />slopes <br />Betting <br />Landform: Foothills, valleys, <br />alluvial fans <br />Position on landscape: Foot <br />slopes, backslopes <br />Elevation: 6,500 to 7,800 feet <br />Native plants: Grass <br />Air temperature: 45 to 47 <br />degrees F <br />Annual precipitation: 17 to 22 <br />inches <br />Frost-free period: 80 to 110 <br />days <br />Composition <br />Trag soil and similar <br />inclusions: 85 percent <br />Contrasting inclusions: 15 <br />percent <br />Typical Profile <br />Surface layer: <br />• 0 to 8 inches=sandy loam <br />Subsoil: <br />8 to 26 inches=clay loam <br />26 to 38 inches=sandy clay loam <br />Substratum: <br />38 to 60 inches=loam <br />soil Properties and Qualities <br />Parent material: Alluvium <br />Depth class: Very deep <br />Drainage class: Well drained <br />Permeability: Moderate <br />Available water capacity: High <br />Potential rooting depth: 60 or <br />more inches <br />Runoff: Medium <br />Hazard of water erosion: Medium <br />to high <br />Hazard of wind erosion: Slight <br />Carbonates: 40 to 60 inches <br />Contrasting Inclusions <br />Soils that have a dark surface, <br />lack a developed subsoil, and <br />• are greater than 60 inches deep <br />Major Current IIses <br />Rangeland, irrigated hay and <br />pasture <br />Major Management Factors <br />irrigated Hay and Pasture <br />Soil-related factors: Water <br />erosion, wind erosion <br />Suitability: Fair <br />Annual production: 3.5 tons of <br />grass hay per acre <br />Management considerations: <br />Irrigation water management <br />Land leveling <br />Windbreaks <br />Soil-related factors: Water <br />erosion, wind erosion <br />Suitability: Good <br />Management considerations: <br />Supplemental irrigation may be <br />necessary during dry periods <br />Trees suitable are Ponderosa <br />pine, Russian olive <br />Shrubs suitable are Lilac, <br />sumac, skunkbush <br />Orban Development <br />Soil-related factors: Water <br />erosion, wind erosion, steepness <br />of slope <br />Suitability as a site for <br />buildings: Good <br />Management considerations: <br />Wind erosion around construction <br />sites <br />Revegetation may be difficult <br />due to wind erosion <br />Rangeland <br />Suitability: Good <br />Dominant vegetation in the <br />potential plant community: <br />Western wheatgrass, little <br />bluestem, blue grams <br />Annual production of air-dry <br />vegetation: 1,300 pounds per <br />acre <br />S-i-10 <br />