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Official Series Description -HARVEY Series <br />RANGE IN CHARACTERISTICS: <br />Page 2 of 3 <br />Soil Moisture: Soil moisture control section -Moist periodically during the months of June to <br />October and December to February and are moist for at least 15 days after the soil temperature <br />reaches 41 degrees F. The moisture control section is dry for extended periods between average <br />maximums in most years. <br />Depth to calcic horizon: 5 to 24 inches. <br />Soil Temperature: 49 to 59 degrees F. <br />Clay averages 18 to 35 percent in the particle-size control section. <br />Rock fragments: 0 to 15 percent weighted average. <br />Soil Reaction: Slightly to moderately alkaline. In Utah reaction ranges to strongly alkaline. <br />A horizon <br />Hue: 2.SYR to lOYR <br />Value: 5 to 7 dry, 3 to 6 moist <br />Chroma: 2 to 6 <br />Texture: Sandy loam, gravelly sandy loam, fine sandy loam, channery fine sandy loam, very fine <br />sandy loam, loam, or gravelly loam. <br />Bw horizon (where present) <br />Hue: SYR, 7.SYR, or lOYR <br />Value: 4 to 6 dry, 3 to 5 moist <br />Chroma: 2 to 4 <br />Texture: fine sandy loam, loam, sandy clay loam, or clay loam <br />Bk horizon <br />Hue: 2.5YR to lOYR <br />Value: 5 to 8 dry, 4 [0 7 moist <br />Chroma: 0 to 6 <br />Texture: Sandy loam, fine sandy loam, loam, sandy clay loam, or clay loam <br />Calcium carbonate equivalent: 15 to 40 percent <br />In some pedons textures of gravelly sandy loam or gravelly sandy clay loam occur. <br />COMPETING SERIES: These are the Abracon (UT), Cltugcity (T WY), Cobbra (T UT), and <br />Xet~mack (T NM) series. Similar soils are the Creel (NM), DarveV (NM), Hernandez (NM) series. <br />Abracon soils have soil moisture control section that is moist periodically for short periods <br />throughout the year. Chugcity and Xenmack soils have bedrock between 20 and 40 inches of the <br />surface. Cobbra soils have more than 35 percent rock fragments below 40 inches. Creel, Darvey and <br />Hernandez soils are in the fine-loamy family. in addition, Creel soils have a lithic or paralithic <br />contact at depths of less <br />than 40 inches, Dazvey soils have calcic horizons greater than 24 inches deep, and Hernandez soils <br />are moist for longer periods during the winter and for fewer periods of time during the spring and <br />summer. <br />GEOGRAPHIC SETTING: Harvey soils are on hills, swales, plateaus, bajadas and mesas. Slope <br />gradients range from 0 to 15 percent. Mean annual precipitation typically ranges from 10 to 13 <br />httpa/wwwstatlab.instate.edu/cgi-bin/osdlosdname.cgi?-P 3/15/2002 <br />