LOCATION CHICORA MS
Established Series
CCH, JL
02/2013
CHICORA SERIES
The Chicora series consists of very deep, moderately well drained, moderately permeable soils that formed in loamy marine sediments. They are on stream terraces of the Southern Coastal Plain. Near the type location, the average annual precipitation is about 55 inches the average annual temperature is about 63 degrees F. Slopes range from 0 to 5 percent.
TAXONOMIC CLASS: Fine-loamy, siliceous, semiactive, thermic Aquic Hapludults
TYPICAL PEDON: Chicora fine sandy loam, in a planted pine plantation (Colors are for moist soil).
Ap--0 to 4 inches; dark grayish brown (10YR 4/2) fine sandy loam; weak fine granular structure; very friable; many fine roots; strongly acid; clear smooth boundary. (3 to 8 inches thick)
E--4 to 10 inches; pale brown (10YR 6/3) fine sandy loam; moderate fine granular structure; friable: many very fine and common fine roots; very strongly acid; clear wavy boundary. (0 to 6 inches thick)
Bt1--10 to 18 inches; yellowish brown (10YR 5/6) sandy clay loam; moderate fine and medium subangular blocky structure; friable; few fine roots; few fine pores; common faint clay films on faces of peds; few fine brown (10YR 4/3) and black (10YR 2/1) iron and manganese concretions; common fine and medium distinct light yellowish brown (10YR 6/4) irregular-shaped areas of iron depletions and few fine prominent yellowish red (5YR 5/6) irregular-shaped masses of iron accumulations; very strongly acid; clear wavy boundary.
Bt2--18 to 36 inches; yellowish brown (10YR 5/4) clay loam; moderate medium subangular blocky structure; firm; slightly plastic, slightly sticky; few fine roots; few fine pores; common faint clay films on faces of peds; few fine brown (10YR 4/3) and black (10YR 2/1) iron and manganese concretions; many fine and medium distinct light brownish gray (10YR 6/2) irregular-shaped areas of iron depletions and common fine and medium prominent strong brown (7.5YR 5/6) irregular-shaped masses of iron accumulations; very strongly acid; gradual wavy boundary. (Combined thickness of the Bt horizons range from 20 to 30 inches)
Btg1--36 to 48 inches; light brownish gray (10YR 6/2) clay loam; weak medium subangular blocky structure; firm; slightly plastic, slightly sticky; few fine roots; few fine pores; few faint clay films on faces of peds; common coats of very fine sand on faces of some peds; few fine brown (10YR 4/3) and black (10YR 2/1) concretions of iron and manganese; many fine and medium distinct yellowish brown (10YR5/4) and strong brown (7.5YR 5/8) irregular-shaped masses of iron accumulations; very strongly acid; gradual wavy boundary.
Btg2--48 to 59 inches; light brownish gray (10YR 6/2) sandy clay loam; weak medium subangular blocky structure; friable; few very fine roots; few fine pores; few faint clay films on faces of peds; common coats of very fine sand on faces of some peds; many fine to coarse distinct strong brown (7.5YR 5/8) and few fine and medium distinct yellowish brown (10YR5/6) irregular-shaped masses iron accumulations; very strongly acid; gradual wavy boundary. (Combined thickness of the Btg horizons range from 12 to 25 inches)
BCg--59 to 71 inches; light brownish gray (10YR 6/2) sandy loam; weak fine and medium subangular blocky structure; friable; few fine roots; few fine pores; few faint clay films on faces of peds; few coats of very fine sand on faces of some peds; many fine and medium distinct yellowish brown (10YR5/6) and strong brown (7.5YR 5/8) irregular-shaped masses of iron accumulations; very strongly acid; gradual wavy boundary. (0 to 15 inches)
Cg--71 to 84 inches; 30 percent grayish brown (10YR 5/2), 30 percent light brownish gray (10YR 6/2), 20 percent strong brown (7.5YR 5/6) and 20 percent yellowish brown (10YR5/6) fine sandy loam; massive; friable; few fine roots; few fine black and brown concretions; the areas of grayish brown and light brownish gray are iron depletions and the areas of yellowish brown and strong brown are iron accumulations; very strongly acid.
TYPE LOCATION: Greene County, Mississippi. About 7.0 miles northeast of Leakesville; about 200 feet south of Rounsaville Road and 0.25 miles west of Highway 57. NW 1/4 of the SW 1/4 of sec. 5, R. 6W. T. 2N. USGS Leakesville topographic quadrangle; Latitude 31 degrees 09 minutes 51.0 seconds N., Longitude 88 degrees 30 minutes 20.9 seconds W.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 35 to 60 inches. Reaction ranges from very strongly to strongly acid throughout the profile except where the surface has been limed. The control section averages more than 30 percent silt.
The A or Ap horizon has hue of 7.5YR or 10YR, value of 4 to 5, chroma of 2 to 4 or hue of 2.5Y, value of 4, and chroma of 2. Texture is very fine sandy loam, fine sandy loam, sandy loam, silt loam or loam.
The E horizon, where present, has hue of 7.5YR or 10YR, value of 4 to 7, chroma of 3 to 6. Texture is very fine sandy loam, fine sandy loam, sandy loam, silt loam or loam.
The BE or BA horizons, where present, have hue of 7.5YR to 10YR, value of 4 to 7, chroma of 4 to 8. Texture is sandy loam or loam.
The upper part of the Bt horizon has hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 8. Redoximorphic features in shades of brown, yellow, or red range from none to common. Texture is loam, sandy clay loam or clay loam.
The lower part of the Bt horizon has hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 8; or there is no dominant color and is multicolored in shades of red, brown, yellow and gray. Redoximorphic features in shades of brown, yellow, or red, olive or gray range from common to many. Texture is sandy clay loam, clay loam or clay.
The Btg horizon has hue of 7.5YR to 2.5Y, value of 4 to 7, chroma of 1 or 2. Redoximorphic features in shades of brown, yellow, red, olive, or gray range from common to many. Texture is sandy clay loam, clay loam, or clay.
The BC, CB or 2BC horizons, where present, have hue of 7.5YR to 2.5Y, value of 4 to 7, chroma of 3 to 8; or there is no dominant color and is multicolored in shades of red, yellow, brown and gray. Redoximorphic features in shades of brown, yellow, red, olive or gray range from few to many. Texture is fine sandy loam, sandy loam or sandy clay loam.
The BCg or CBg horizons, where present, have hue of 7.5YR to 2.5Y, value of 4 to 7, and chroma of 0 or 2. Redoximorphic features in shades of brown, yellow, or red range from few to many. Texture is fine sandy loam or sandy loam.
The C or 2C horizon, where present, has hue of 7.5YR to 2.5Y, value of 4 to 7, and chroma of 3 to 8; or there is no dominant color and is multicolored in shades of yellow, red, brown and gray. Redoximorphic features in shades of brown, yellow, red, olive or gray range from common to many. Texture is fine sand, loamy fine sand, fine sandy loam or thin stratified layers ranging from sand to clay.
Cg or 2Cg horizon has hue of 7.5YR to 2.5Y, value of 4 to 7, and chroma of 0 or 2. Iron accumulations in shades of brown, yellow, or red range from common to many. Texture is fine sand, loamy fine sand, fine sandy loam or thin stratified layers ranging from sand to sandy clay loam.
COMPETING SERIES: These are the
Columbus
Eunola,
Mazarn,
Mollicy,
Whitwell and
Yauhannah series in the same family and the
Chatom and
Slagle series in a related family. Columbus soils are on slightly lower terrace positions and are subject to flooding. Eunola and Yauhannah soils have less than 25 percent silt in control section. The somewhat poorly drained Mazarn soils are in small upland drains and intermittent streams in the
Ouachita mountains of Arkansas. The somewhat poorly drained Mollicy soils are on lower positions and are subject to flooding. Whitwell soils are in the Southern Appalachian
Valley and
Highland Rim and have up to 15 percent cobblestones and commonly have stratified C horizons. Chatom soils are on upland positions. Slagle soils are on uplands of eastern Virginia.
GEOGRAPHIC SETTING: Chicora soils are on nearly level to gently sloping upper stream terraces of the Southern Coastal Plains. The climate is warm and humid. The mean annual precipitation is about 55 inches and the mean annual temperature is about 63 degrees F. Slopes range from 0 to 5 percent.
GEOGRAPHICALLY ASSOCIATED SOILS: These are
Annemaine,
Cahaba,
Chickasawhay,
Harleston,
Izagora,
Latonia and
Quitman series. Annemaine soils have clayey control sections and are on slightly positions that are subject to flooding. The well drained Cahaba soils have a dominant hue redder than 7.5YR and are subject to rare flooding. Chickasawhay soils are on similar landscapes, but have clayey control sections. Harleston and the well drained Latonia soils have coarse-loamy control sections. Izagora soils are on similar positions and do not decrease in clay within 60 inches of the solum. The somewhat poorly drained Quitman soils do not decrease in clay within 60 inches of the surface.
DRAINAGE AND PERMEABILITY: Chicora soils are moderately well drained. Runoff is slow and permeability is moderate. A water table is at a depth of 2.0 to 3.0 feet late in winter and early spring.
USE AND VEGETATION: Chicora soils are used mainly for growing soybeans, pasture, and hay. Forested areas are mainly in mixed pine and hardwoods.
DISTRIBUTION AND EXTENT: Southern Coastal Plains of Mississippi. The series is of minor extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama.
SERIES ESTABLISHED: Greene County, Mississippi; 2010.
REMARKS: These soils were formerly mapped as the Columbus series but are on a slightly higher terrace level and are not subject to flooding.
Diagnostic horizons and features recognized in this pedon:
Ochric epipedon - the zone from the surface of the soil to a depth of about 10 inches (Ap and E horizons).
Argillic horizon - the zone from about 10 inches to 71 inches (Bt1, Bt2 Btg1, Btg2 and BCg horizons).
Aquic features - seasonal high saturation at a depth of 18 inches.
Chicora soils are in MLRA 133A.
National Cooperative Soil Survey
U.S.A.