LOCATION WIDEMAN AR+MOEstablished Series
TAXONOMIC CLASS: Sandy, siliceous, mesic Typic Udifluvents
TYPICAL PEDON: Wideman fine sand, 1 percent slope in pasture. (Colors are for moist soil unless otherwise stated.)
A1--0 to 1 inch; dark brown (10YR 4/3) fine sand; weak fine granular structure; very friable; many fine and medium roots; extremely acid; abrupt smooth boundary. (0 to 3 inches thick)
A2--1 to 6 inches; yellowish brown (10YR 5/4) fine sand; weak fine granular structure; very friable; many fine and medium roots; extremely acid; clear smooth boundary. (2 to 6 inches thick)
C1--6 to 11 inches; dark yellowish brown (10YR 4/4) loamy fine sand; massive; very friable; common fine roots; few fine black masses, few thin light yellowish brown streaks; strongly acid; clear smooth boundary. (2 to 6 inches thick)
C2--11 to 32 inches; light yellowish brown (10YR 6/4) fine sand; single grain; very friable; few fine roots; common medium reddish brown and black masses; bedding planes in lower 4 inches; moderately acid; clear wavy boundary. (10 to 24 inches thick)
C3--32 to 38 inches; brown (10YR 5/3) fine sandy loam; massive; friable; common fine roots; few fine pores; few fine black masses; reddish brown and strong brown stains and light yellowish brown streaks of loamy sand; strongly acid; clear smooth boundary. (3 to 6 inches thick)
C4--38 to 48 inches; very pale brown (10YR 7/3) fine sand; single grain; very friable; few fine roots; common medium yellowish red and few fine brown masses; slightly acid; abrupt smooth boundary. (8 to 12 inches thick)
C5--48 to 52 inches; dark grayish brown (10YR 4/2) fine sandy loam; massive; friable; few fine roots; common fine pores; common medium brown and black masses; very pale brown streaks of loamy sand; moderately acid; abrupt smooth boundary. (2 to 5 inches thick)
C6--52 to 63 inches; very pale brown (10YR 7/3) fine sand; single grain; very friable; 0.5 inch lense of fine gravel and common medium brown and black masses; yellowish brown stains; moderately acid; clear smooth boundary. (6 to 12 inches thick)
C7--63 to 72 inches; dark grayish brown (10YR 4/2) loamy fine sand; massive; friable; common medium dark brown masses and streaks; strongly acid; clear smooth boundary. (6 to 10 inches thick)
C8--72 to 80 inches; yellowish brown (10YR 5/4) fine sandy loam; massive; friable; strongly acid.
TYPE LOCATION: Izard County, Arkansas; 1 mile southwest of Newberg on county road, than 0.1 mile south in SW1/4NE1/4NE1/4 sec. 20, T. 17 N., R. 9 W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 55 to 59 degrees F.
The A horizon has hue of 10YR, value of 3 to 5, and chroma of 2 to 4. Texture is fine sandy loam, sandy loam, fine sand, sand, loamy fine sand, or loamy sand. Reaction is extremely acid to neutral.
The C horizon has hue of 10YR, values of 4 to 7, and chroma of 2 to 4, or hue of 7.5YR, value of 4 to 6, and chroma of 3 to 6. The particle size control control section is dominantly loamy sand, sand, or fine sand and contains thin strata of loamy very fine sand or finer textures. Coarse fragments, dominantly gravel, range from 0 to 85 percent in thin lenses in some C pedons. Reaction is stongly acid to neutral.
COMPETING SERIES: This is the Absco series. Absco soils have an apparent water table from 40 to 72 inches and have a mean annual soil temperature of 47 to 52 degrees F..
GEOGRAPHIC SETTING: Wideman soils are on flood plains and natural levees along streams in the Ozark Highlands of Arkansas and Missouri. The flood plains are often dissected by old channels, now inactive. Slopes are usually less than 3 percent but range from 0 to 5 percent. Wideman soils formed in sandy alluvium with thin strata of finer texture. The mean annual precipitation ranges from about 42 to 48 inches and the mean annual temperature ranges from about 54 to 58 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Boden, Britwater, Brockett, Brockwell, Moko, Portia, and Razort series. Boden soils have more than 35 percent clay in the upper 20 inches of the argillic horizon. Moko soils are 6 to 20 inches to a lithic contact. Boden and Moko soils are on steep, adjacent sideslopes. Britwater soils are fine-loamy and are on higher terrace positions. Brockett and Portia soils are fine-loamy and are on nearby footslope and gently sloping upland positions. Brockwell soils are coarse-loamy and are on nearby gently sloping uplands. Razort soils are fine-loamy and are on slightly higher elevations.
DRAINAGE AND PERMEABILITY: Wideman soils are excessively drained. Runoff is negligable and permeability is moderately rapid. Flooding is common on these soils, when not protected.
USE AND VEGETATION: Most of these soils are used for pasture and meadows with limited use for cultivated crops. Native trees were eastern cottonwood, American sycamore, sweetgum, and other bottomland hardwoods. Tame grasses are mainly bermuda and tall fescue.
DISTRIBUTION AND EXTENT: Ozark Highlands (MLRA 116A) of Arkansas and Missouri. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Marion County, Arkansas; 1978.
REMARKS: These soils were formerly included in the Bruno series.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the surface to a depth of 6 inches (A and E horizons).