PERMFILE118141 - Laserfiche WebLink

Home Browse Search

Attachment B LOCATION GLENBERG CO+KS MT NE NM SD UT WY Established Series RJL/RHM/CJH 05/2005 GLENBERG SERIES The Glenberg series consists of very deep, well drained soils that formed in stratified calcareous alluvium from mixed sources. Glenberg soils are on flood plains and low terraces. Slopes range from 0 to 8 percent. Mean annual precipitation is about 12 inches (30 centimeters) and mean annual air temperature is about 52 degrees F (11 degreesC). TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, mesic Ustic Torrifluvents TYPICAL PEDON: Glenberg sandy loam -grassland. (Colors aze for dry soil unless otherwise noted) A--O to 6 inches (0 to 15 centimeters); light brownish gray (1 OYR 6/2) sandy loam, dark grayish brown (lOYR 4/2) moist; moderate fine granular structure; soft, very friable; moderately alkaline (pH 8.0); gradual smooth boundary. (3 to 8 inches thick, 8 to 20 centimeters) C--6 to 60 inches (15 to l52 centimeters); light brownish gray (lOYR 6/2) sandy loam stratified with thin lenses of loam and loamy sand, dark grayish brown (lOYR 4/2) moist; massive; slightly hard, very friable; weak and inconsistent accumulations of secondary calcium carbonate as small concretions; moderately alkaline (pH 8.2). TYPE LOCATION: Crowley County, Colorado; 200 feet (61 meters) south and 720 feet (219 meters) east of the N 1/4 corner of Sec. 17, T. 22 S., R. 58 W. RANGE IN CHARACTERISTICS: The soil moisture control section is moist intermittently May through August, dry December through February; aridic moisture regime bordering on ustic. Mean annual soil temperature: 47 to 53 degrees F (8 to 11 degrees C). Mean summer soil temperature: 65 to 74 degrees F (18 to 23 degrees C). Depth to calcareous material: 0 to 6 inches (0 to IS centimeters) Visible secondary calcium carbonate as soft concretions or thin seams occurs inconsistently at any depth. Depth to bedrock or strongly contrasting substratums is greater than 60 inches (] 52 centimeters). Organic carbon content of the surface horizon:.5 to 2.0 percent and decreases irregularly with depth. Texture of the control section: predominantly sandy loam Particle size control section: Clay content: 5 to 18 percent Silt content: 5 to 40 percent Sand content: 50 to 75 percent with more than 35 percent fine or coarser sand. Coarse fragments: 0 to 15 percent but are commonly less than 5 percent. Some pedons may have up to 30 percent coarse fragments in any one horizon but the weighted average of the particle-size control section is less than 15 percent. A horizon: Hue: lOYR or 2.SY Value: 4 to 7 dry, 3 to 5 moist Chroma: of 2 to 4 Texture: fine sandy loam or sandy loam Reaction: slightly alkaline through moderately alkaline C horizon: (An AC horizon is present in some pedons) Hue: lOYR or 2.SY Value: of 5 [0 7 dry, 4 or 5 moist Chroma: of 2 to 4