Laserfiche WebLink
GEOGRAPHIC SETTING: Pinon soils are on knolls, ridges, mesas and hillslopes at elevations of 5,500 <br />to 6,700 feet. Slope gradients range from 1 to 30 percent. These soils formed in alluvium and residuum <br />derived from limestone. Pinon soils are in a warm climate having mean annual temperature ranging <br />from 49 to 56 degrees F., and a mean summer temperature of 64 degrees F. Mean annual precipitation <br />ranges from 10 to 15 inches. The frost -free period is 130 to 170 days. In Colorado these soils have air <br />temperatures ranging from 45 to 48 degrees F. and have a frost -free period of 90 to 130 days with <br />elevations up to 7,400 feet. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Dean and Deama soils and the competing <br />Harvey soils. Dean soils have 40 percent or more carbonate in the control section and they lack a lithic <br />contact within a depth of 20 inches. Deama soils have more than 35 percent rock fragments in the <br />particle -size control section. <br />DRAINAGE AND PERMEABILITY: Well drained; slow surface runoff; moderately slow permeability. <br />USE AND VEGETATION: These soils are used primarily for livestock grazing. Native vegetation is <br />pinyon, juniper, grama grass and shrubs. <br />DISTRIBUTION AND EXTENT: Central New Mexico and southern Colorado. The series is of moderate <br />extent. <br />MLRA OFFICE RESPONSIBLE: Temple, Texas <br />SERIES ESTABLISHED: Valencia County (East Valencia Area), New Mexico, 1970. <br />REMARKS: DIAGNOSTIC HORIZONS AND FEATURES RECOGNIZED IN THIS PEDON ARE: <br />Ochric epipedon - from the soil surface to a depth of about 7 inches. (A horizon) <br />Calcic horizons - the zone between 7 and 16 inches. (Bk1, Bk2 horizons) <br />Lithic contact - the occurrence of limestone at 16 inches. <br />National Cooperative Soil Survey, U.S.A. <br />Attachment 2.04.9 -3 -25 <br />