LOCATION ANGELINA TXEstablished Series
TAXONOMIC CLASS: Fine-loamy, siliceous, active, acid, thermic Typic Fluvaquents
TYPICAL PEDON: Angelina sandy clay loam - marsh.
(Colors are for moist soil unless otherwise
01--0 to 1 inches; leaves, stems, and other litter in various stage of decomposition. (1 to 4 inches thick)
02--1 to 3 inches; decomposing organic material with most of the original form destroyed. (1 to 3 inches thick)
A1g--3 to 7 inches; light gray (10YR 6/1) sandy clay loam; massive; friable; many fine roots; many fine pores; common fine distinct strong brown (7.5YR 5/8) iron accumulations, mainly around old root channels; very strongly acid; clear smooth boundary. (2 to 6 inches thick)
C1g--7 to 14 inches; light gray (10YR 7/1) sandy clay loam; massive; friable; common fine roots; common fine pores; common fine distinct yellowish brown (10YR 5/6) iron accumulations; very strongly acid; clear smooth boundary. (2 to 8 inches thick)
C2g--14 to 26 inches; light gray (10YR 6/1) sandy clay loam; massive; friable; common fine roots; common fine pores; common medium distinct strong brown (7.5YR 5/8) iron accumulations; very strongly acid; gradual smooth boundary. (0 to 20 inches thick)
C3g--26 to 35 inches; light gray (10YR 6/1) sandy clay loam; friable; few fine roots; few fine pores; massive; many fine and medium distinct red (2.5YR 4/8) iron accumulations; very strongly acid; gradual smooth boundary. (0 to 18 inches thick)
C4g--35 to 63 inches; prominently variegated light gray (10YR 6/1), red (2.5YR 4/8), and strong brown (7.5YR 5/6) clay loam; massive; friable; few fine roots; few fine pores,; very strongly acid.
TYPE LOCATION: Nacogdoches County, Texas. Stephen F. Austin Experimental Forest, 2800 feet south, 20 degrees west of forest headquarters, about 10 miles southwest of Nacogdoches, Texas.
RANGE IN CHARACTERISTICS: The 10- to 40-inch control section has clay content ranging from 24 to 35 percent and has more than 20 percent silt. In some pedons, pockets, lenses, or thin strata of more sandy material are within 50 inches below the soil surface. Krotovina are common throughout the solum. The soil is strongly acid or very strongly acid.throughout.
The Ag horizon has hue of 10YR, value of 5 to 7, and chroma of 1 or 2. Texture is sandy clay loam, loam, or fine sandy loam.
The Cg horizon has hue of 10YR to 5Y, value of 5 to 7, and chroma of 1 or 2; or it is neutral (N/) with value of 5 to 7. Iron accumulations are in shades of brown, yellow, or red. Texture is is sandy clay loam, clay loam, or loam.
COMPETING SERIES: This is the Kinston series. Closely related soils include the Bibb, Herod, Lee, Manco, Mantachie, Nahatche, and Wehadkee series. Bibb soils have less than 18 percent clay in particle size control section. Kinston soils are not saturated for as long a period of time and support a lowland hardwood forest. Lee soils contain chert throughout the profile. Manco and Mantachie soils have less than 60 percent of the mass between the Ap and 30 inches dominated by chromas of 2 or less. Herod, Nahatche, and Wehadkee soils have a pH of more than 5.5 in some part of the control section and, in addition, the Nahatche and Wehadkee soils have mixed mineralogy.
GEOGRAPHIC SETTING: Angelina soils are in ponded, marshy floodplains. The soil formed in recent acid, loamy sediments from the Southern Coastal Plain. Slopes are less than 1 percent. The mean annual temperature is about 65 degrees to 67 degrees F., and Thornthwaite annual P-E indices exceed 64. Frost free days range from 230 to 245. Mean annual rainfall is 42 to 52 inches. Elevation ranges from 100 to 245 feet above mean sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Bibb, Manco, and Mantachie series, and the Iuka and Urbo series. All of the associated soils are better drained and are slightly higher lying. Iuka soils are in a coarse-loamy family. Urbo soils are in a fine family and have a cambic horizon.
DRAINAGE AND PERMEABILITY: Angelina soils are very poorly drained. Runoff is negligible. They are ponded and have slow permeability. Water stands on the surface 8 to 10 months in most years.
USE AND VEGETATION: Mainly used as wildlife habitat; vegetation consists mainly of water loving sedges, button bush, and giant sawgrass.
DISTRIBUTION AND EXTENT: Mainly in the Southern Coastal Plain (MLRA 133B), and Western Gulf Coast Flatwoods.(152B) of Texas and, possibly, Louisiana. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Bryan and Chatham Counties, Georgia; 1969.
REMARKS: This series was formerly included as a miscellaneous land type - Fresh water marsh.
DIAGNOSTIC HORIZONS AND FEATURES:
Ochric Epipedon.....................0 to 7 inches
Reduced Matrix......................3 to 63 inches
ADDITIONAL DATA: Mineralogy count of the C3g horizon made by SCS Laboratory, Lincoln, Neb., 71L0258.