LOCATION YAHOLA OK+KS LA TXEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, thermic Udic Ustifluvents
TYPICAL PEDON: Yahola fine sandy loam, cultivated. (Colors are for dry soil unless otherwise stated.)
Ap--0 to 11 inches; reddish brown (5YR 5/4) fine sandy loam; reddish brown (5YR 4/4) moist; weak fine granular structure; soft, very friable; very slightly effervescent; moderately alkaline; gradual smooth boundary. (4 to 20 inches thick)
C1--11 to 40 inches; reddish yellow (5YR 6/6) fine sandy loam; yellowish red (5YR 5/6) moist; massive; slightly hard, very friable; thin strata of loamy fine sandy and silt loam in the lower part; slightly effervescent; moderately alkaline; gradual smooth boundary. (5 to 30 inches thick)
C2--40 to 56 inches; reddish brown (5YR 5/4) loam; reddish brown (5YR 4/4) moist; massive; slightly hard, friable; slightly effervescent; moderately alkaline; gradual smooth boundary. (0 to 40 inches thick)
C3--56 to 72 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6) moist; massive; slightly hard, very friable; thin strata of loamy fine sand through clay loam; slightly effervescent; moderately alkaline.
TYPE LOCATION: Jefferson County, Oklahoma; about 7 miles west and 1 mile north of Ryan; about 2,000 feet north and 200 feet east of the southwest corner of sec. 18, T. 6 S., R. 8 W.
RANGE IN CHARACTERISTICS: Buried soils occur below a depth of 30 inches in some areas.
The A horizon has hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 2 to 6. Where the A horizon value is 5.5 or less, and chroma is 3.5 or less, and thickness is more than 10 inches, organic matter content is less than 1 percent. Texture is fine sandy loam, very fine sandy loam, loam, or loamy fine sand. Where the loamy fine sand occurs, it is less than 12 inches thick. Reaction is slightly or moderately alkaline in the upper 10 inches and moderately alkaline and calcareous below 10 inches.
The C horizon has hue of 2.5YR to 7.5YR, value of 5 to 7, and chroma of 3 to 8. Texture is fine sandy loam, very fine sandy loam, or loam with 5 to 18 percent clay above a depth of 40 inches. Texture is fine sandy loam, loam, silt loam, or loamy fine sand below a depth of 40 inches. Thin strata of coarser or finer materials occur throughout the C horizon. Reaction is moderately alkaline and calcareous.
COMPETING SERIES: There are no other series in the same family. Soils in similar families include Gaddy, Gracemont, Lincoln and Westola. Gaddy and Lincoln soils have sandy textural control sections. Lincoln and Westola soils occur in drier climates. Gracemont soils have a water table within 40 inches of the soil surface.
GEOGRAPHIC SETTING: Yahola soils are on nearly level or very gently sloping flood plains in the Central Rolling Red Prairies (MLRA-80A). Slopes are 0 to 2 percent. The soil formed in calcareous loamy alluvium on flood plains that drain Permian and Pleistocene age sediments. Mean Annual Precipitation: 26 to 40 inches. Mean Annual Temperature: 57 to 64 degrees F. Thornthwaite Annual P-E indices: 44 to 64. Frost Free Days: 190 to 230. Elevation: 800 to 1300 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Canadian, Dale, Gaddy, Gracemont, Gracemore, Pulaski, Miller, Port, and Reinach series. Canadian and Dale soils have mollic surfaces and are on slightly higher areas. Gaddy soils are on slightly lower areas and are loamy fine sand or coarser through the textural control section. Gracemont and Gracemore soils have a water table within 40 inches of the soil surface and are on slightly lower areas. Miller and Port soils are on nearby areas and have a mollic epipedon. In addition, Miller soils have a fine control section and Port soils have a fine-silty control section. Pulaski soils are on nearby areas. Reinach soils are on higher areas and they have a mollic epipedon and a coarse-silty control section.
DRAINAGE AND PERMEABILITY: Yahola soils are well drained. Runoff is negligible on 0 to 1 percent slopes and very low on 1 to 2 percent slopes,and permeability is moderately rapid. These soils are rarely to frequently flooded for very brief to brief periods during April to October.
USE AND VEGETATION: These soils are mainly cropped to alfalfa, peanuts, cotton, small grains, tame pasture, and grain sorghum. The native vegetation is tall and mid grasses with eastern cottonwood, pecan, tamarisk, and American elm.
DISTRIBUTION AND EXTENT: Central Rolling Red Prairies (MLRA-80A) of Oklahoma, Kansas, and Texas. The series is extensive.
MLRA OFFICE RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Muskogee County, Oklahoma; 1913.
REMARKS: Soil Interpretation Record: OK0038 Yahola Series
Diagnostic horizons and features recognized in the pedon are:
Ochric epipedon- the zone from the surface of the soil to a depth of 11 inches ( the A or Ap horizon).
Udic- Ustic moisture regime