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Official Series Description -KIM Series LOCATION KIM CO+KS MT NM WY Established Series Rev. AJC/GB/PRF 01/2000 KIM SERIES rage r ~r ~ The Kim series consists of very deep, moderately permeable, well drained soils that formed in alluvium and mixed eolian and alluvial material derived from sandstone and shale. Kim soils aze on alluvial fans below escarpments of sedimentary rock and uplands. Slopes are 0 to 20 percent. The mean annual precipitation is about 13 inches and the mean annual temperature is about 51 degrees F. TAXONOMIC CLASS: Fine-loamy, mixed, active, calcareous, mesic Ustic Torriorthents TYPICAL PEDON: Kim loam -grassland. (Colors are for dry soil unless otherwise noted.) A--O to 6 inches; grayish brown (lOYR 5/2) loam, dark grayish brown (lOYR 4/2) moist; moderate very fine granular structure; soft, very friable; strongly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (4 to 8 inches thick) AC--6 to 14 inches; grayish brown (lOYR 5/2) clay loam, dazk grayish brown (lOYR 4/2) moist; weak medium prismatic structure parting to weak medium subangulaz blocky; hard, very friable, plastic; violently effervescent; moderately alkaline (pH 8.0); clear wavy boundary. (6 to 10 inches thick) C--14 to 60 inches; pale brown (lOYR 6/3) clay loam, brown (lOYR 5/3) moist; massive; hard, very friable; 5 percent sandstone fragments; some visible calcium carbonate occurring as small soft masses; violently effervescent; moderately alkaline (pH 8.0). TYPE LOCATION: Bent County, Colorado; 50 feet west and .85 mile south of the northwest comer of Sec. 3, T. 26 S., R. 52 W. RANGE IN CHARACTERISTICS: Mean annual soil temperature ranges from 49 to 58 degrees F., and mean summer soil temperature ranges from 59 to 78 degrees F. The surface I S inches has approximately .8 percent organic matter and the sand/clay ratio ranges from 1 to about 3. The particle- size control section is typically loam, sandy clay loam, or light clay loam, and less commonly in the lower part a fine sandy loam. It has 18 to 35 percent clay, 20 to 55 percent silt, and 15 to 60 percent sand, with more than 15 percent but less than 45 percent being fine or coazser sand. Rock fragments aze Typically less than 10 percent and range from 0 to 15 percent. Exchangeable sodium percentage is usually less than 3 and is less than 15 in any layer as thick as 4 inches. This soil is not dry in all parts of the moisture control section for more than one-half the time that the soil temperature is above 41 degrees F. (225 to 235 days) and is not dry for 45 consecutive days following July 15, A horizon Hue: SY through 7.SYR Value: 5 through 7 dry, 3 through 6 moist Chroma: 2 through 4 Structure: granulaz structure, but has subangular blocky structure in some pedons. 4!29!2004