LOCATION KEDRON PAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Aquic Fragiudults
TYPICAL PEDON: Kedron channery silt loam - cropland. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 9 inches; dark reddish brown (5YR 3/3) channery silt loam; moderate medium and fine granular structure; friable; slightly sticky, slightly plastic; many roots; 20 percent rock fragments; neutral; abrupt smooth boundary. (5 to 12 inches thick)
BA--9 to 13 inches; reddish brown (5YR 4/3) channery silt loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; common roots; 15 percent rock fragments; moderately acid; gradual wavy boundary. (0 to 10 inches thick)
Bt--13 to 22 inches; reddish brown (5YR 5/3) silty clay loam; weak medium and fine subangular blocky structure; firm, slightly sticky, plastic; common roots; common faint clay films on faces of peds; 10 percent rock fragments; strongly acid; clear wavy boundary. (8 to 20 inches thick)
Btx1--22 to 38 inches; reddish brown (2.5YR 4/4) channery silt loam, few grayish brown (10YR 5/2) mottles; prism faces light gray (10YR 6/1); weak very coarse prismatic structure parting to moderate thick platy and fine blocky; firm, brittle, slightly sticky, plastic; few roots along prism faces; common distinct clay films in pores and on faces of peds; 15 percent rock fragments; very strongly acid; gradual wavy boundary. (8 to 20 inches thick)
Btx2--38 to 65 inches; reddish brown (2.5YR 4/4) very channery silt loam; few to common distinct strong brown (7.5YR 5/6) and grayish brown (10YR 5/2) mottles; upper prism faces grayish brown (10YR 5/2) weak very coarse prismatic structure parting to weak thick platy and fine blocky; firm, brittle, slightly sticky, plastic; no roots; few distinct clay films in pores and on faces of peds; few black coatings; 40 percent rock fragments; very strongly acid.
TYPE LOCATION: Luzerne County, Pennsylvania; Sugar Loaf Township, 2 1/2 miles west of Conyngham near intersection of routes 40010 and T301.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 40 to 65 inches or more. Depth to bedrock ranges from 5 to 8 feet or more. The Bx horizon begins at about 20 to 32 inches. Rock fragments of subrounded or angular sandstone or shale ranges from 2 to 30 percent in the solum above the Bx and from 15 to 50 percent in the Bx. Reaction ranges from extremely acid to strongly acid throughout where unlimed. Depth to low chroma mottles ranges from 12 to 30 inches.
The Ap horizon has hue of 5YR through 7.5YR, value of 3 or 4, and chroma of 2 or 3. Texture is silt loam or loam in the fine-earth fraction.
The BA and Bt horizons have hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 through 6. Textures range from silt loam to clay loam in the fine-earth fraction.
The Btx horizon has hue of 10R through 5YR, value of 4 or 5, and chroma of 2 through 6. Textures range from silty clay loam in the fine-earth fraction.
COMPETING SERIES: The Belvoir, Buchanan, Calverton, Cookport, Ernest, Glenville, and Raritan series are in the same family. Albrights, Leck Kill, Meckesville, and Wellsboro are in other families. Belvoir, Calverton, Cookport, Ernest, and Glenville soils do not have hue of 5YR or redder throughout the B horizon. Buchanan soils do not have hue of 5YR or redder in B2 horizons. Raritan soils have rounded fragments and unconforming C horizon of stratified sand, silt, and gravel. Albrights soils have more than 35 percent base saturation. Leck Kill soils do not have Bx horizon and mottles. Meckesville soils do not have mottles with chroma of two or less within 30 inches. Wellsboro soils do not have Bt horizons.
GEOGRAPHIC SETTING: Kedron soils are nearly level to moderately steep with slopes of 0 to 25 percent. They have formed in a regolith of colluvium or glacial till from reddish shale, siltstone, and fine grained sandstone. The climate is humid and temperature, average annual precipitation is 36 to 45 inches, average annual temperature is 46 to 52 degrees F., and the freeze free season is 140 to 200 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These include the Calvin, Klinesville, Leck Kill, and Meckesville series. Calvin, Klinesville, and Leck Kill soils do not have fragipans. In addition, Calvin and Klinesville soils have bedrock within 40 and 20 inches respectively. Meckesville soils do not have mottles with chroma of two or less within 30 inches.
DRAINAGE AND PERMEABILITY: Somewhat poorly and moderately well drained. Permeability is slow.
USE AND VEGETATION: Mostly woodland. About 30 to 40 percent is used for crops and pasture. Wooded areas are primarily mixed hardwoods.
DISTRIBUTION AND EXTENT: Ridge and Valley Province and glacial areas of Pennsylvania. Estimated to be of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Washington County, Maryland, 1950.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
1. Ochric epipedon - the zone from the surface of the soil to a depth of about 13 inches (Ap and BA horizons).
2. Argillic horizon - the zone from 13 to 22 inches (Bt horizon).
3. Fragipan - the zone from 22 to 65 inches (Btx1 and Btx2 horizons).
ADDITIONAL DATA: The Kedron series included some soils previously identified as Albrights that have low base saturation. Lab data from six samples in Pennsylvania has considerably less than 35 percent base saturation. Laboratory data S72-PA-24-5 are from typifying pedon.