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~ iiiiiuiiii ~ <br />iiiiim <br />USDA, Soil Conservation Servic 999 <br />Section II-E <br />UNITED STATES DEPARTXENT OF AGRICULTURE <br />SOIL CONSERVATION SERVICE <br />COLORADO FIELD OFFICE <br />Shallow Foot <br />Eco Site Des <br />MLRA 09A and <br />July 1984 <br />A. PHYSICAL CHARACTERISTICS <br />1. Physiographic Features <br />lI N704 <br />iption <br />9B <br />Topography is ridges, hog-back:, mesas, std steep slope Slope is <br />often east facing but can be in any direction. Slope v rtes from <br />nearly Ieve1 Lo IS percent. F1 ovation ranges from 5,?0 to 7,000 <br />feet (1,585 to ?,134 meters). <br />7. Climatic Features <br />a. Precipitation averages 13 to 17 inches (35-13 cm) <br />fluctuations from year to year. From 65 to 70 per <br />precipitation is received between May and October. <br />A typical average precipitation pattern follows: <br />Jan Feb March April May June Joly Aug Sept Oct <br />.4? .SB .9? 1.64 1.14 I.B? ?.4? 7.16 1.16 .94 <br />11y with <br />of the <br />Rov Dec <br />.64 .48 <br />b. Average annual temperature is approsimsteIy 19' F (9 4• c). <br />Length of the frost free period avet~ges 120 to !50 aye and <br />occur: from the middle of May till the end of Septa t. High <br />irnensity summer :forms followed bg hot dry periods re common. <br />3. Native (Climes Potential) Vegetation <br />a. The potential plant rnmmunity !: about 70 to BO per <br />10 to 20 percent (orbs, and 15 to 30 pemrn shrubs <br />This site gives a browse type vegetation appearance. <br />Mountain mahogany, big blue:tsa, little bluestem, si <br />grams, yellow Itdiangrass, and Grittitb wheatgrass a, <br />domirnnt planes in the potential plant crommunity. <br />Needleardthread, mountain mvhly, Sandberg bluegrass, <br />Jumgrass, and Indian ricegras: are alto present. M <br />forbs and other shrubs are presern in smell amounts. <br />pine, Rocky Mountain juniper, and pordemsa pine are <br />on this sits in small amourns. <br />t grasses, <br />d ttee7. <br />True <br />oats <br />the <br />blue grams, <br />Pinyon <br />also found <br />