LOCATION WESTON AR+AL NC VA
Established Series
Rev. ORC
10/2021
WESTON SERIES
The Weston series is a member of a coarse-loamy, siliceous,
thermic family of Typic Ochraquults. The Weston soils have light
colored, friable, acid, sandy loam surface soils, underlain by
sandy loam mottled gray, very strongly acid subsoils.
TAXONOMIC CLASS: Coarse-loamy, siliceous, active, thermic Typic Endoaquults
TYPICAL PEDON: Weston fine sandy loam - forested. (Colors are for moist soil unless otherwise stated.)
Oi--0 to 1 inches, pine needles, leaves, and twigs.
A1--1 to 5 inches, grayish brown (10YR 5/2) fine sandy loam; weak fine granular structure; very friable; many fine and medium roots; few fine soft dark bodies; moderately acid; clear smooth boundary. (3 to 6 inches thick)
A2--5 to 10 inches, light brownish gray (10YR 6/2) fine sandy loam, few fine faint brownish yellow (10YR 6/8) mottles; weak medium subangular blocky structure; friable; many fine and medium roots; few fine pores; few fine dark concretions; strongly acid; gradual smooth boundary. (3 to 7 inches thick)
Btg--10 to 25 inches, gray (10YR 6/1) sandy loam, common fine and medium distinct brownish yellow (10YR 6/8) mottles; weak medium subangular blocky structure; friable, nonplastic; common fine and medium roots; many fine pores; sand grains coated and bridged with clay; few fine dark concretions; very strongly acid; gradual wavy boundary. (12 to 24 inches thick)
Bg--25 to 45 inches, mottled light gray (10YR 7/1), yellowish brown (10YR 5/6), and brownish yellow (10YR 6/6) fine sandy loam; weak medium subangular blocky structure; friable; few roots; many fine pores; few fine dark concretions; very strongly acid; gradual smooth boundary. (16 to 24 inches thick)
Cg--45 to 55 inches, mottled gray (10YR 6/1) and yellowish brown (10YR 5/8) stratified layers of sand, silt, and clay; massive; firm; very strongly acid.
TYPE LOCATION: Cleveland County, Arkansas; 4 miles south of Dallas County line on highway 167, then east 1 1/2 miles on dirt road to Croak school, then north 1.1 miles, 75 feet west of road;
NW1/4NE1/4NE1/4sec. 25, T. 8 S., R. 13 W.
RANGE IN CHARACTERISTICS: Thickness of solum ranges from about 36 to 56 inches thick.
The A horizon is fine sandy loam, sandy loam, or loamy fine sand.
The A1 or Ap horizon is light brownish gray (10YR 6/2), grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), or very dark gray (10YR 3/1). The A2 horizon is light brownish gray (10YR 6/2) or
pale brown (10YR 6/3); some pedons have values of 5 or chromas of 1, and mottles of brownish yellow (10YR 6/8) or yellowish brown (10YR 5/8).
The Btg horizon is gray (10YR 5/1, 6/1) or light gray 10YR 7/1) mottled with shades of yellow and brown; textures include sandy loam or loam. Clay content of the B2tg horizon ranges from 5 to
18 percent, silt content is 20 to 50 percent, and the horizon contains more than 15 percent of material coarser than very fine sand. Reaction of the B horizons ranges from very strongly acid
to extremely acid.
Average texture of the stratified C horizon ranges from sandy loam to loam.
COMPETING SERIES: These are the Caddo, Leaf, Myatt, Rains, and Smithton series. All except Smithton soils are finer textured and contain more than 18 percent clay in the B horizons. Smithton soils have sola thicker than 60 inches.
GEOGRAPHIC SETTING: The Weston soils occur on nearly level to gently rolling uplands, coastal flatwoods, and stream terraces. Some of the stream terraces have undulating relief consisting of a succession of shallow depressions and low ridges. Slope gradient seldom exceeds 3 percent. The soil formed in coarse to moderately fine textured, stratified marine and fluvatile deposits.
GEOGRAPHICALLY ASSOCIATED SOILS: These include the competing Caddo and Myatt series. Also associated are the Pheba and Stough soils, both of which have fragipans.
DRAINAGE AND PERMEABILITY: Poorly drained; very slow runoff; moderately slow permeability. Many depressions as well as level areas are ponded for several days during wet season.
USE AND VEGETATION: Most of the soil is in forests of gum, cypress, southern yellow pines, maple, and water oak; undergrowth of shrubs and vines is heavy in most places. Cleared areas are
used for small grains, corn, soybeans, and pasture.
DISTRIBUTION AND EXTENT: Gulf Coastal Plain, western Alabama, Mississippi, Arkansas, Louisiana, and Texas. The series is of moderate extent.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Hancock County, Mississippi; 1930.
REMARKS: The Weston series was formerly classified in the Low-Humic Gley great soil group. The soil horizon depths were modified on 10/2021 to ensure the description began at the soil surface.
National Cooperative Soil Survey
U.S.A.