LOCATION HATLIFF TXEstablished Series
TAXONOMIC CLASS: Coarse-loamy, siliceous, semiactive, nonacid, thermic Aquic Udifluvents
TYPICAL PEDON: Hatliff loam--pasture.
(Colors are for moist soil unless otherwise stated.)
Ap--0 to 5 inches; dark brown (10YR 4/3) loam, pale brown (10YR 6/3) dry; few fine faint dark gray mottles; common fine distinct strong brown stains in root channels and on ped surfaces; weak fine subangular blocky structure; hard, friable; common fine and medium roots; few wormcasts; medium acid; abrupt smooth boundary. (3 to 7 inches thick)
A--5 to 10 inches; brown (10YR 5/3) fine sandy loam, very pale brown (10YR 7/3) dry; common fine faint dark gray and common fine distinct strong brown mottles; few strong brown stains in root channels; weak fine subangular blocky structure; hard, friable; common fine and medium roots; strongly acid; abrupt smooth boundary. (3 to 7 inches thick)
C1-- 10 to 26 inches; yellowish brown (10YR 5/4) fine sandy loam; few medium distinct strong brown (7.5YR 5/8) and few faint light brownish gray mottles; few strong brown stains in root channels; common strata 1 to 5 cm in thickness of light yellowish brown (10YR 6/4) loamy fine sand, bedding planes evident; massive; very friable; strongly acid; abrupt smooth boundary. (12 to 18 inches thick)
C2--26 to 38 inches; very pale brown (10YR 7/4) loamy fine sandy; few fine faint brownish yellow (10YR 6/6) mottles; few strata 5 to 10 mm in thickness of brown (10YR 5/3) fine sandy loam; single grain; loose, very friable; medium acid; abrupt smooth boundary. (8 to 14 inches thick)
C3--38 to 70 inches; very pale brown (10YR 7/4) loamy fine sand; common strata 1 to 3 cm in thickness of light brownish gray (10YR 6/2) fine sandy loam; fine sandy loam strata contain few fine distinct yellowish brown (10YR 5/6) mottles and strong brown stains in root channels; single grain; very friable; slightly acid; abrupt smooth boundary. (28 to 36 inches thick)
C4-- 70 to 80 inches; very pale brown (10YR 7/4) sand; common fine distinct brownish yellow (10YR 6/6) mottles; single grain; loose; neutral.
TYPE LOCATION: Harris County, Texas. From intersection of US Highway 59 and Farm Road 1960 in Humble; 900 feet northeast along US 59; 1.9 miles northwest on a road leading to a gas well; 100 feet west, in pasture.
RANGE IN CHARACTERISTICS: Soil reaction ranges from strongly acid through neutral but is medium acid through neutral in some parts of the control section. Bedding planes are evident and strata of contrasting textures are throughout the solum. Mottles of chroma 2 or less are within 20 inches of the surface.
The A horizon is loam, clay loam, fine sandy loam, sandy loam, or loamy fine sand. It has hue of 10YR, value of 3 through 6, and chroma of 1 through 3. Where color values are less that 3.5, the thickness is less than 7 inches. In pedons with matrix chroma of 3 the A horizon contains fine faint mottles with chroma of 1 or 2. The A horizon also contains strong brown (7.5YR 5/6, 5/8) or yellowish brown (10YR 5/6, 5/8) mottles or stains in the root channels.
The C horizon has hue of 10YR, value of 4 through 8, and chroma of 2 through 4. The chroma 2 colors are due to uncoated sand grains. Mottles are grayish brown (10YR 5/2), light brownish gray (10YR 6/2), dark gray (10YR 4/1), dark grayish brown (10YR 4/2), strong brown (7.5YR 5/6, 5/8), yellowish brown (10YR 5/6, 5/8), brownish yellow (10YR 6/6) or any of the above C horizon colors. In some pedons the C horizon below a depth of 40 inches has a matrix color of gray (10YR 5/1) or light gray (10YR 6/1, 7/2, 7/1). The C horizon is fine sandy loam, loam, sandy loam, loamy fine sand, loamy sand, fine sand, or sand. Clay content in the control section ranges from 8 to 18 percent.
COMPETING SERIES: There are no other series in the same family. Similar soils include the Bruno, Gracemont, Iuka, Kian, Nahatche, Nugent, Ochlockonee, Rockdale, and Thenas series. Cartecay soils contain common to many mica flakes. Tribbey soils are 5YR or redder throughout. Tullahassee soils have less than 30 inches of warm season precipitation and occur in cooler areas. Bruno, Nugent, and Ochlockonee soils lack low chroma mottles due to wetness in the upper 20 inches of the soils. Gracemont soils are calcareous throughout. Iuka soils are in an acid family. Kian and Nahatche soils are somewhat poorly drained, and are dominated by colors with chroma of 2 or less. In addition, Nahatche soils have a fine-loamy control section. The Rockdale soils have a fine-loamy control section.
GEOGRAPHIC SETTING: Hatliff soils are on flood plains. Slopes range from 0 to 3 percent. The soils formed in deep loamy and sandy alluvial sediments. Average annual precipitation is 40 to 52 inches with 30 to 40 inches warm season precipitation and the mean annual temperature is 68 to 76 degrees F. The Thornthwaite P-E index is 62 to 82.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bruno, Iuka, Kian, Nahatche, and Ochlockonee soils of the competing series and the Crevasse, and Voss soils. Crevasse soils have control sections of sand or loamy sand and lack strata of finer textures. Voss soils are sandy throughout.
DRAINAGE AND PERMEABILITY: Moderately well drained; slow runoff; moderately rapid permeability. These soils are commonly flooded a few times each year but some areas are rarely or occasionally flooded. They are saturated with water for periods of a few days to a few weeks mainly during the winter and early spring in most years.
USE AND VEGETATION: Most of the soils are in native forest of pine and hardwood trees. The principal use is woodland grazing and timber production. The main vegetation is loblolly pine, water oak, willow oak, red oak, sycamore, sweetgum, American beautyberry, wild grape, berry vines, yaupon, pepper vine, longleaf uniola, beaked panicum, and switchgrass.
DISTRIBUTION AND EXTENT: Southeast Texas, mainly along streams draining areas of loamy and sandy soils. The series is of minor extent.
MLRA OFFICE RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Harris County, Texas; 1973.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The A horizons from 0 to 10 inches.
Aquic feature - has mottles with chroma of 2 or less within 20 inches of the surface.
Fluventic feature - has bedding planes of contrasting textures throughout the solum.