LOCATION TEXLA TX

Established Series
GWC-JKW-RM
07/2014

TEXLA SERIES

The Texla series consists of very deep, somewhat poorly drained soils. These soils formed in loamy fluviomarine deposits of the Beaumont Formation of late Pleistocene age. Slope ranges from 0 to 2 percent. Mean annual temperature is about 19.5 degrees C (67 degrees F), and mean annual precipitation is about 1422 mm (56 inches).

TAXONOMIC CLASS: Fine-silty, siliceous, active, thermic Oxyaquic Glossudalfs

TYPICAL PEDON: Texla silt loam-woodland.(Colors are for moist soil unless otherwise stated.)

A--0 to 10 cm (0 to 4 in); dark grayish brown (10YR 4/2) silt loam; weak medium granular structure; slightly hard, very friable; many fine and medium roots; many fine and medium pores; 1 percnt faint light brownish gray (10YR 6/2) iron depletions with sharp boundaries; very strongly acid; abrupt smooth boundary. (8 to 20 cm [3 to 8 in] thick)

E--10 to 23 cm (4 to 9 in); light yellowish brown (10YR 6/4) silt loam; weak medium subangular blocky structure; slightly hard, very friable; common fine and medium roots; many medium pores; 1 percent fine dark yellowish brown (10YR 4/6) iron accumulations with sharp boundaries lining pores; 1 percent faint light brownish gray (10YR 6/2) iron depletions with sharp boundaries adjacent to iron accumulations; very strongly acid; gradual wavy boundary. (8 to 25 cm [3 to 10 in] thick)

Bt/E--23 to 56 (9 to 22 in); yellowish brown (10YR 5/6) silty clay loam (Bt); moderate medium prismatic structure parting to moderate medium subangular blocky; hard, friable; many coarse and medium, and few fine roots; many medium pores; 5 percent faint yellowish brown (10YR 5/6) clay films on surfaces of prisms; 40 percent pale brown (10YR 6/3) albic material (E) on surface of prisms; 5 percent distinct reddish yellow (7.5YR 6/8) iron accumulations with sharp boundaries lining pores; 1 percent distinct light brownish gray (10YR 6/2) iron depletions with sharp boundaries adjacent to iron accumulations; few crawfish krotovina filled with grayish brown (10YR 5/2) loam; very strongly acid; gradual wavy boundary. (25 to 64 cm [10 to 25 in] thick)

Bt--56 to 84 (22 to 33 in); grayish brown (10YR 5/2) clay; moderate medium prismatic structure parting to moderate medium subangular blocky; very hard, very firm; few fine roots along ped faces; common fine pores; 20 percent fine and medium prominent strong brown (7.5YR 5/6) iron accumulations with sharp boundaries in matrix; 5 percent fine and medium prominent red (2.5YR 4/6) iron accumulations with sharp boundaries on ped exteriors; 2 percent fine faint gray (10YR 6/1) iron depletions with sharp boundaries in matrix; common pressure faces; few crawfish krotovinas filled with light gray (10YR 7/1) clay loam; very strongly acid; gradual wavy boundary. (13 to 51 cm [5 to 20 in] thick)

Btss--84 to 119 (33 to 47 in); gray (10YR 6/1) clay; moderate medium prismatic structure parting to moderate medium angular blocky; very hard, very firm; few fine roots along ped faces; many fine and medium pores; common medium prominent red (2.5YR 4/6) and common medium distinct yellowish brown (10YR 5/6) iron accumulations with sharp boundaries; 20 percent prominent pressure faces; 15 percent distinct slickensides; few crawfish krotovinas filled with light gray (10YR 7/1) clay and clay loam; very strongly acid; gradual wavy boundary. (combined thickness of the Btss and Btssg horizon is 64 to 140 [25 to 55 in])

Btg--119 to 203 cm (47 to 80 in); light gray (10YR 7/1) clay loam; moderate medium prismatic structure parting to moderate medium angular blocky; very hard, very firm; few fine roots along ped faces; few fine pores; 12 percent fine and medium prominent olive (5Y 5/6) iron accumulations with clear boundaries in ped interiors and 8 percent medium and coarse prominent yellow (5Y 7/6) iron accumulations with clear boundaries in ped interiors; common pressure faces; few crawfish krotovinas filled with light gray (10YR 7/1) clay and clay loam; 1 percent fine white (2.5Y 8/1) salt masses; very strongly acid.

TYPE LOCATION: Orange County, Texas; from the intersection of Texas Highway 87 and Interstate Highway 10 in Orange; 7.5 miles north on Texas Highway 87; 1.1 miles east on paved road; 450 feet south of road in woodland. Latitude: 30 degrees, 13 minutes, 33 seconds N; Longitude: 93 degrees, 45 minutes, 05 seconds W; Mauriceville topographic quadrangle; WGS 84.

RANGE IN CHARACTERISTICS:
Soil Moisture: An udic soil moisture regime. The soil moisture control section is dry for less than 60 days in some or all parts in normal years.
Mean annual soil temperature: 20.6 to 21.7 degrees C (69 to 71 degrees F)

Depth to glossic horizon: 15 to 46 cm (6 to 18 in)
Depth to episaturation: 46 to 76 cm (18 to 30 in)

Particle-size control section (weighted average)
Clay content: 25 to 33 percent

A horizon
Hue: 10YR
Value: 4 to 6
Chroma: 1 to 3
Texture: silt loam or very fine sandy loam
Redox concentrations: amount-0 to 2 percent, color-shades of brown
Redox depletions: amount-0 to 2 percent, color-shades of gray
Reaction: extremely acid or moderately acid.

E horizon
Hue: 10YR
Value: 5 to 7
Chroma: 2 to 4
Texture: silt loam or very fine sandy loam
Redox concentrations: amount-2 to 5 percent, color-shades of brown or yellow
Redox depletions: amount-0 to 2 percent, color-shades of gray
Reaction: extremely acid or very strongly acid.

Bt/E horizon
Bt part
Hue: 7.5YR or 10YR
Value: 4 to 6
Chroma: 3 to 6
E part
Hue: 10YR
Value: 5 to 7
Chroma: 1 to 3
Texture: silt loam or silty clay loam
Redox concentrations: amount-2 to 25 percent, color-shades of red, brown or yellow
Redox depletions: amount-2 to 8 percent, color-shades of gray
Reaction: extremely acid to strongly acid.

Bt horizon
Hue: 10YR or 2.5Y
Value: 5 to 7
Chroma: 1 to 2
Texture: clay loam, silty clay loam, silty clay or clay
Redox concentration: amount-8 to 35 percent, color-shades of red, brown or yellow
Redox depletions: amount-2 to 12 percent, color-shades of gray
Reaction: very strongly acid or neutral.

Btss horizon
Hue: 10YR or 2.5Y
Value: 6 or 7
Chroma: 1 to 2
Texture: silty clay or clay
Redox concentration: amount-8 to 35 percent, color-shades of red, brown or yellow
Redox depletions: amount-2 to 12 percent, color-shades of gray
Reaction: very strongly acid or moderately acid.

Btg horizon (where present)
Hue: 10YR or 2.5Y
Value: 6 or 7
Chroma: 1 to 2
Texture: clay loam, silty clay loam
Redox concentration: amount-8 to 35 percent, color-shades of red, brown or yellow
Redox depletions: amount-2 to 12 percent, color-shades of gray, green, or blue
Reaction: very strongly acid or slightly alkaline.

COMPETING SERIES: There are no series in the same family. Similar soils include the Aldine (TX), Crystal Lake (WI), Gichigami (WI), Gist (TX), Immanuel (AR), Kleinpeter (LA), Kneff (MI), Littlefork (MN), Ribriver (WI), Scotlandville (LA), and Spencer (WI) series.

Aldine soils: have a fine-silty over clayey particle-size control section
Crystal Lake, Gichigami, Kneff, Littlefork, Ribriver, and Spencer soils: are in a frigid temperature regime
Gist soils: have less than 18 percent clay in the particle-size control section
Immanuel and Scotlandville soils: have mixed mineralogy
Kleinpeter: in a hyperthermic temperature regime
Vidrine soils: have a coarse-silty over clayey particle-size control section and typically have carbonates in the lower part of the solum.

GEOGRAPHIC SETTING:
Parent material: loamy fluviomarine deposits derived from the Beaumont Formation of late Pleistocene age
Landscape: flat Coastal Plains
Landform: flats
Microfeature: relict bars
Slope: 0 to 2 percent
Mean annual precipitation range: 1219 to 1524 mm (48 to 60 in)
Precipitation Pattern: Precipitation is fairly uniform throughout the year with slight peaks in the spring and fall months.
Mean annual air temperature range: 19.5 to 20.6 degrees C (67 to 69 degrees F.)
Frost-free period: 240 to 300 days
Elevation: 4.6 to 30.5 m (15 to 100 ft)

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Camptown(TX), Evadale (TX), Gist (TX), and the tentative Vidor (T) series.
Camptown soils: have aquic conditions; in relict meanderbelt channels
Evadale soils: have aquic conditions; on flats
Gist soils: have less than 18 percent clay in the particle-size control section; oval pimple mounds
Vidor soils: have exchangeable sodium percentages greater than 15; on flats

DRAINAGE AND PERMEABILITY: Somewhat poorly drained. Runoff is high on slope less than 1 percent and very high on slope greater than 1 percent. Permeability is very slow. These soils are saturated for more than 30 days from 46 to 76 cm (18 to 30 in) below the soil surface during late winter and early spring. Redoximorphic features are due to abnormally wet conditions.

USE AND VEGETATION: Used mainly for woodland and native pasture. Most areas are in pine and hardwood, mainly loblolly pine, water oak, and sweetgum. The understory vegetation is mainly yaupon and American beautyberry with andropogon, paspalum, and panicum species with a few sedges. A few areas have been cleared and used for improved pastures of bahiagrass and bermudagrass.

DISTRIBUTION AND EXTENT: The Western Gulf Coast Flatwoods (MLRA 152B) of Texas. The series extends from the Sabine River to Trinity River. The series is of moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Orange County, Texas; 1996.

REMARKS: The Texla soils were formerly included with the Evadale, Vdrine and Aldine series.

Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon- 0 to 23 cm (0 to 9 in) (A and E horizon).

Glossic horizon- 23 to 56 cm (9 to 22 inches) (Bt/E horizon).

Argillic horizon- 23 to 203 cm (9 to 80 in) (Bt/E, Btg, Btssg horizons).

Additional Comments:

ADDITIONAL DATA: KSSL data available on pedon S12TX1991030 (lab pedon ID 12N8310) from Hardin County. Particle-size analysis, salinity and sodicity tests were performed at the project office on 8 pedons spanning the series province.

Taxonomic Version: Keys to Soil Taxonomy, Eleventh Edition, 2010

National Cooperative Soil Survey
U.S.A.