LOCATION TROUP AL FL GA MS NC SC

Established Series
Rev. PGM-APT-AMS
05/2016

TROUP SERIES

The Troup series consists of very deep, somewhat excessively drained soils that formed in unconsolidated sandy and loamy marine sediments. Troup soils are on ridges and hillslopes. Slopes predominantly range from 0 to 15 percent but range to 45 percent. Mean annual temperature is about 17 degrees C (64 degrees F), and the mean annual precipitation is about 1320 millimeters (52 inches).

TAXONOMIC CLASS: Loamy, kaolinitic, thermic Grossarenic Kandiudults

TYPICAL PEDON: Troup fine sand, on a convex 3 percent slope in a mixed pine and hardwood forest (Colors are for moist soil unless otherwise noted.)

Oi--0 to 8 centimeters (0 to 3 inches); dark yellowish brown (10YR 3/4) peat; fiber content is three fourths of the sol volume after rubbing; common medium to very coarse roots; very strongly acid; clear wavy boundary. [0 to 13 centimeters thick (0 to 4 inches thick)]

A--8 to 18 centimeters (3 to 7 inches); pale brown (10YR 6/3) fine sand; weak fine granular structure; very friable; common medium to very coarse roots; very strongly acid; clear wavy boundary. [5 to 28 centimeters thick (2 to 11 inches thick)]

E1--18 to 58 centimeters (7 to 23 inches); very pale brown (10YR 7/4) fine sand; single grained; loose; common fine to coarse roots; common medium distinct discontinuous yellowish brown (10YR 5/6) horizontal skeletans having a sand texture approximately 5 millimeters in thickness; strongly acid; gradual wavy boundary.

E2--58 to 112 centimeters (23 to 44 inches); very pale brown (10YR 7/4) fine sand; single grained; loose; few fine to coarse roots; common medium distinct areas of white (10YR 8/1) uncoated sand grains; strongly acid; abrupt wavy boundary. [Combined thickness of the E horizons range from 79 to 188 centimeters (31 to 74 inches)]

Bt1--112 to 137 centimeters (44 to 54 inches); yellowish red (5YR 5/8) sandy clay loam; moderate medium subangular blocky structure; friable; few faint red (2.5YR 5/8) clay bridges and clay films on faces of peds; strongly acid; clear wavy boundary.

Bt2--137 to 165 centimeters (54 to 65 inches); red (2.5YR 5/8) sandy clay loam; moderate medium subangular blocky structure; friable; few fine distinct discontinuous brownish yellow (10YR 6/6) splotches and vertical streaks less than 5 to 25 millimeters in thickness of loamy sand material; common faint discontinuous faint clay bridges and clay films on vertical faces of peds; strongly acid; gradual smooth boundary.

Bt3--165 to 203 centimeters (65 to 80 inches); light red (2.5YR 6/8) sandy clay loam; weak medium and coarse subangular blocky structure; friable; few faint distinct strong brown (7.5YR 5/6) clay bridges and clay films between and on vertical faces of peds; strongly acid. [Combined thickness of the Bt horizons range from 3 to 100 centimeters (1 to 39 inches)]

TYPE LOCATION: Barbour County, Alabama. About 0.3 miles east of Nero Baptist Cemetery, down a meandering dirt trail, off of Martin Creek Road. Comer Topographic Quadrangle; Sec. 12, T. 13 N., R. 26 E.; 32 degrees, 7 minutes, 6.09 seconds North; 85 degrees 22 minutes 47.92 seconds West. Datum WGS84.

RANGE IN CHARACTERISTICS:

Oi horizon, where present:
Hue: 5YR to 10YR
Value: 3, moist
Chroma: 2 to 4, moist
Texture: peat; lightly decomposed organic matter (the fiber content of these materials is 40 percent or more, by volume, after rubbing).
Reaction: moderately acid to very strongly acid

A or Ap horizons:
Hue: 7.5YR or 10YR
Value: 3 to 6, moist
Chroma: 2 to 4, moist
Texture: coarse sand, sand, fine sand, loamy fine sand, or loamy sand
Fragments: nodules of ironstone range from 0 to 10 percent, by volume. Quartzite pebbles range from 0 to 10 percent by volume.
Reaction: moderately acid to very strongly acid, except where the surface has been limed.

E horizon:
Hue: 5YR to 10YR
Value: 5 to 8, moist
Chroma: 3 to 8, moist
Texture: coarse sand, sand, fine sand, loamy fine sand, or loamy sand
Fragments: nodules of ironstone range from 0 to 10 percent, by volume. Quartzite pebbles range from 0 to 10 percent by volume.
Reaction: very strongly acid to strongly acid
Ped and Void Surface Features: Some pedons have few to common areas of splotches, streaks or skeletans of uncoated in shades of white to pale brown and coated sand grains in shades of yellow or brown.

BE horizon, where present:
Hue: 5YR to 10YR
Value: 5 to 7, moist
Chroma: 4 to 8, moist
Texture: loamy sand, loamy fine sand, sandy loam, or fine sandy loam
Fragments: nodules of ironstone range from 0 to 10 percent, by volume. Quartzite pebbles range from 0 to 10 percent by volume.
Reaction: very strongly acid to strongly acid

Bt horizon:
Hue: 10R to 5YR. Some pedons have hue of 7.5YR
Value: 5 to 8, moist
Chroma: 6 to 8, moist
Texture: sandy loam, fine sandy loam, coarse sandy loam or sandy clay loam. The lower Bt horizons may range up to clay loam or sandy clay.
Fragments: nodules of ironstone range from 0 to 10 percent, by volume. Quartzite pebbles range from 0 to 10 percent by volume. Percent by volume of plinthite ranges from 0 to 4 percent.
Reaction: very strongly acid to strongly acid

BC horizon, where present:
Hue: 10R to 5YR. Some pedons have a hue of 7.5YR
Value: 6 to 8, moist
Chroma: 4 to 8, moist
Texture: loamy sand, sandy loam or sandy clay loam
Fragments: nodules of ironstone range from 0 to 10 percent, by volume. Quartzite pebbles range from 0 to 10 percent by volume.
Reaction: very strongly acid to strongly acid

COMPETING SERIES:
Lucknow soils are the only known series in the same family. Lucknow soils are on marine terraces and low hills, have yellower subsoils and have a seasonal high water table that ranges from 102 to 183 centimeters (40 to 72 inches) below the surface.

GEOGRAPHIC SETTING:
Parent Material: unconsolidated sandy and loamy marine deposits
Landscape: Coastal Plain
Landform: Ridges and hillslopes
Hillslope Profile Position: Summit, shoulder, and backslope
Geomorphic Component: Side slope and interfluve
Slopes: 0 to 15 percent but range to 45 percent
Elevation: 30 to 152 meters (98 to 500 feet)
Mean annual air temperature: 16 to 18 degrees C (62 to 66 degrees F)
Mean annual precipitation: 1219 to 1422 millimeters (48 to 64 inches)
Frost free duration: 190 to 310 days

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Ailey, Alaga, Blanton, Bonneau, Bonifay, Fuquay, Lakeland, Lucy, and Orangeburg, series.
Ailey soils are well drained or somewhat excessively drained on similar positions and have sandy surface and subsurface layers 51 to 102 centimeters (20 to 40 inches) in thickness. The subsoil is dense with some brittleness and cementation and are in an Arenic subgroup.
Alaga soils are excessively drained on similar to lower positions, and are Quartzipsamments.
Blanton soils are somewhat excessively drained to moderately well drained on lower positions and are in a Grossarenic subgroup.
Bonneau soils are well drained on lower, stream terrace positions, are in an Arenic subgroup and have an argillic horizon at depths of 56 to 188 centimeters (22 to 74 inches).
Bonifay soils are well drained soils and are on slightly lower positions, have more than 5 percent plinthite in the argillic horizons and are in the Grossarenic Plinthic subgroup.
Fuquay soils are well drained on lower positions and are in an Arenic subgroup.
Lakeland soils are excessively drained on similar to higher positions and are Quartzipsamments.
Lucy soils are well drained on similar positions and are in an Arenic subgroup.
Orangeburg soils are well drained on similar to lower positions, have a control section of fine-loamy, and are in the Typic subgroup.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: Somewhat excessively drained
Saturated Hydraulic Conductivity (Ksat): moderately high in the Bt horizon and high in the A and E horizons
Permeability: moderate in the Bt horizon and rapid in the A and E horizons
Flooding frequency and Duration: None
Ponding frequency and Duration: None

USE AND VEGETATION:
Most areas of Troup soils are in forests of pine and mixed hardwoods. Cleared areas are used for pastureland and for growing peanuts, watermelons, and vegetables.

DISTRIBUTION AND EXTENT:
Major Land Resource Area (MLRA's): The series occurs primarily in the Southern Coastal Plain (MLRA 133A). It also occurs to a lesser extent in the Carolina and Georgia Sand Hills (MLRA 137), North Central Florida Ridge (MLRA 138), Eastern Gulf Coast Flatwoods (MLRA 152A), and the Atlantic Coast Flatwoods (MLRA 153A).
Extent: large extent

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama.

SERIES ESTABLISHED:
Houston County, Alabama in 1965.

REMARKS:
Diagnostic horizons and features recognized in this pedon:

Particle-size control section: 112 to 162 centimeters (44 to 64 inches)

Ochric epipedon - the zone from 0 to 112 centimeters (0 to 44 inches) (A, E1, and E2 horizons)

Grossarenic feature - the zone from 0 to 112 centimeters, from the mineral soil surface (0 to 44 inches) (A, E1, and E2 horizons)

Argillic horizon - the zone from 112 to 203 centimeters (44 to 80 inches) (Bt1, Bt2, and Bt3 horizons)

Kandic horizon - the zone from 112 to 203 centimeters (44 to 80 inches) (Bt1, Bt2, and Bt2 horizons)

The classification changed from Paleudult to Kandiudult in recognition of the low activity clay amendment to the Keys of Soil Taxonomy 3rd Edition (1/89). This soil is currently classified according to the 12th Edition of the Keys of Soil Taxonomy.

ADDITIONAL DATA:
Laboratory data is available on the National Soil Survey website at: http://ncsslabdatamart.sc.egov.usda.gov/querypage.aspx

OSD User Site ID: S2013AL005001
OSD User Pedon ID: S2013AL005001

National Cooperative Soil Survey
U.S.A.