LOCATION COUNTS OKEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, thermic Albaquic Paleudalfs
TYPICAL PEDON: Counts loam--rangeland. (Colors are for moist soil unless otherwise stated.)
A--0 to 4 inches; dark grayish brown (10YR 4/2) loam; weak fine granular structure; very friable; moderately acid; clear smooth boundary. (0 to 8 inches thick)
E--4 to 10 inches; brown (10YR 5/3) loam; massive; very friable; strongly acid; abrupt wavy boundary. (4 to 10 inches thick)
Bt1--10 to 24 inches; dark yellowish brown (10YR 4/4) clay; common medium distinct light gray (10YR 7/1) redoximorphic depletions and common prominent yellowish red (5YR 5/6) redoximorphic concentrations; moderate medium blocky structure; very firm; clay films on faces of peds and in pores; strongly acid; gradual wavy boundary. (8 to 18 inches thick)
Bt2--24 to 46 inches; dark yellowish brown (10YR 4/4) clay; common coarse distinct light gray (10YR 7/1) redoximorphic depletions, and common coarse distinct strong brown (7.5YR 5/6) and yellowish red (5YR 5/6) redoximorphic concentrations; moderate medium blocky structure; very firm; clay films on faces of peds and in pores; moderately acid; diffuse wavy boundary. (14 to 30 inches thick)
Bt3--46 to 64 inches; coarsely mixed gray (10YR 6/1) redoximorphic depletions and yellowish brown (10YR 5/4), and reddish yellow (5YR 6/6) redoximorphic concentrations clay; weak coarse blocky structure; very firm; thin discontinuous clay films on faces of peds; slightly acid.
TYPE LOCATION: Pittsburg County, Oklahoma; about 1 1/2 miles southeast of Counts, Oklahoma; 2,750 feet south and 100 feet east of the northwest corner of sec. 7, T. 2 N., R. 17 E.
RANGE IN CHARACTERISTICS: Solum thickness and depth to shale and sandstone bedrock is more than 60 inches.
The A horizon has hue of 10YR or 2.5Y, value of 3 to 5, and
chroma of 2 or 3. It is silt loam or loam. Reaction is moderately acid to very strongly acid. Base saturation is less than 50 percent.
The E horizon has hue of 10YR or 2.5Y, value of 5 or 6, and
chroma of 2 to 4. Texture, reaction, and base saturation are
similar to the A horizon.
The Bt1 and Bt2 horizons have hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 3 to 8. Redoximorphic features are in shades of brown, yellow, olive, red, and gray. Texture is clay, silty clay, silty clay loam, or clay loam. Reaction is moderately acid to very strongly acid.
The Bt3 horizon has colors, redoxmorphic features, and textures similar to the Bt1 and Bt2 horizons. Most pedons are coarsely mixed in shades of brown, gray, yellow, and red. Reaction is moderately acid to moderately alkaline. The exchangeable sodium percentage ranges from 4 to 16.
Some pedons have BC horizons. They have color, reaction, and
texture similar to the Bt3 horizon.
COMPETING SERIES: This is the Bosville series. Bosville soils have Bt horizons with hue 7.5YR or redder.
GEOGRAPHIC SETTING: Counts soils are on nearly level to strongly sloping uplands in the valleys of the Ouachita Mountains (MLRA 119) and the Arkansas Valley and Ridges (MLRA 118A and 118B). They formed in loamy colluvium or alluvium over interbedded shale and sandstone. The shale and sandstone is of Pennsylvanian age. Slopes are 0 to 12 percent. Mean annual precipitation ranges from 40 to 48 inches. Mean annual temperature ranges from 60 degrees to 64 degrees F. Thornthwaite annual P-E indices ranges from 64 to 80.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Burwell, Carnasaw, Clearview, Clebit, Linker, Pirum, Sallisaw, Shermore, Sobol, Stiger, Tamaha, Wilburton, Wister, and Wing series. Burwell soils have a fine-silty control sections and are on mounds. Carnasaw, Clearview, Linker, Pirum, Sobol, and Wister soils have a sola less than 60 inches thick and are on sideslopes of associated landscapes above the Counts soils. Clebit soils have a sola less than 20 inches thick, lack Bt horizons, and are on ridgecrests of associated landscapes above the Counts soils. Sallisaw, Stigler, Tamaha, Wilburton, Wing, and Wister soils are on nearby landscapes. In addition, Sallisaw soils have fine-loamy control sections, Stigler and Tamaha soils lack an abrupt textural change, Wilburton soils have a loamy-skeletal control section, and Wing soils have Bt horizons high in sodium. Shermore soils have fragipans and are on footslopes of associated landscapes above Counts soils.
DRAINAGE AND PERMEABILITY: Counts soils are moderately well
drained. Runoff is high to very high. The permeability is very slow. A perched water table is within 1 to 2 feet of the surface for brief periods of time usually during the winter and spring months.
USE AND VEGETATION: Used mainly for tame pasture and native range for beef cattle. Some areas are used for small grains, grain sorghum, and soybeans. The native vegetation is post oak, blackjack oak, and southern red oak with an understory of tall and mid grasses.
DISTRIBUTION AND EXTENT: Uplands in the valleys of the Ouachita Mountains and the Arkansas Valley and Ridges of eastern Oklahoma and western Arkansas. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Haskell County, Oklahoma, 1972.
REMARKS: These soils were formerly included in the Conway series.
Diagnostic horizons and features recognized in this series are:
Ochric epipedon - the zone from the surface of the soil to a depth of 10 inches (A and E horizons).
Argillic horizon - the zone from approzimately 10 to 64 inches (Bt horizons).
Udic moisture regime.