LOCATION CLAREVILLE TX

Established Series
Rev. CLN-JKW-JAG
11/2010

CLAREVILLE SERIES

The Clareville series consists of very deep, well drained soils that formed in loamy alluvial sediments of Holocene age. These nearly level to very gently sloping soils are on base slope on draws and drainageways. Slope ranges from 0 to 5 percent but mainly less that 2 percent. Mean annual precipitation is about 711 mm (28 in) and mean annual air temperature is about 22 degrees C (72 degrees F)

TAXONOMIC CLASS: Fine, smectitic, hyperthermic Pachic Argiustolls

TYPICAL PEDON: Clareville loam, on southeast-facing, 0.7 percent slope in cropland; elevation is 55 meters (180 feet). (Colors are for dry soil unless otherwise stated.)

Ap--0 to 13 cm (0 to 5 in); dark gray (10YR 4/1) loam, very dark gray (10YR 3/1), moist; weak fine granular structure; hard, friable; slightly sticky; few fine roots; neutral; abrupt smooth boundary. (8 to 20 cm [3 to 8 in] thick)

A--13 to 28 cm (5 to 11 in); very dark gray (10YR 3/1) clay loam, black (10YR 2/1) moist; weak fine subangular blocky structure; hard, friable; sticky; few fine roots; few fine pores; neutral; clear smooth boundary. (10 to 20 cm [4 to 8 in] thick)

Bt1--28 to 46 cm (11 to 18 in); very dark gray (10YR 3/1) clay loam, black (10YR 2/1), moist; moderate fine and medium subangular blocky structure; very hard, firm, sticky; few fine roots; many fine pores; few distinct clay films; slightly alkaline; gradual smooth boundary. (0 to 64 cm) [0 to 25 in] thick)

Bt2--46 to 64 cm (18 to 25 in); dark grayish brown (10YR 4/2) clay loam, very dark grayish brown (10YR 3/2), moist; moderate medium prismatic structure parting to moderate medium blocky; very hard, firm, sticky; few fine roots; many fine pores; common distinct clay films; few wormcasts; slightly alkaline; gradual wavy boundary. (15 to 30 cm [6 to 12 in] thick)

Btk--64 to 84 cm (25 to 33 in); brown (10YR 5/3) clay loam, brown (10YR 4/3), moist; moderate medium blocky structure; very hard, very firm, sticky; few fine roots; many fine pores; common distinct clay films; few masses of calcium carbonate; few wormcasts; slightly effervescent; moderately alkaline; gradual wavy boundary. (10 to 30 cm [4 to 12 in] thick)

Bk1--84 to 97 cm (33 to 38 in); grayish brown (10YR 5/2) clay loam, dark grayish brown (10YR 4/2), moist; weak medium blocky structure; very hard, very firm, sticky; few fine roots; few fine pores; many wormcasts; few masses and concretions of calcium carbonate; slightly effervescent; moderately alkaline; clear wavy boundary. (8 to 25 cm [3 to 10 in] thick)

Bk2--97 to 117 cm (38 to 46 in); grayish brown (10YR 5/2) clay loam, dark grayish brown (10YR 4/2) moist; weak coarse subangular blocky structure; hard, firm, sticky; few fine roots; few fine pores; about 20 percent masses and concretions of calcium carbonate; strongly effervescent; moderately alkaline; gradual smooth boundary. (10 to 30 cm [4 to 12 in] thick)

BCk--117 to 203 cm (46 to 80 in); very pale brown (10YR 8/3) loam, very pale brown (10YR 7/3) moist; weak coarse subangular blocky structure; hard, friable; few masses and concretions of calcium carbonate; slightly effervescent; moderately alkaline.

TYPE LOCATION: Jim Wells County, Texas; From the intersection of U.S. Highway 281 and Texas Highway 359 in Alice, 16 miles northeast on Texas Highway 359; 130 yards east of gas pipeline marker and right-of-way marker in cropland; (this point is 1.55 miles southwest of the intersection of Texas Highway 359 and Farm Road 624 in Orange Grove). Orange Grove, USGS topographic quadrangle; Latitude is 27 degrees 56 minutes 13.3 seconds N; 97 degrees 56 minutes 51.6 seconds W.; NAD 83.

RANGE IN CHARACTERISTICS: Solum thickness ranges from 150 to 203 (60 to 80 in). The mollic epipedon is 50 to 127 cm (20 to 50 in) thick.
Soil Moisture: A typic-ustic moisture regime. The soil moisture control section is dry in some or all parts for more than 90 days but less than 180 cumulative days in normal years. June through August and December through February are the driest months. These soils are intermittently moist in September through November and March through May. Mean annual soil temperature: 22 to 24 (72 to 75 degrees F).
Depth to secondary calcium carbonate: 61 to 91 cm (24 to 36 in)

Particle-size control section (weighted average)
Clay content: 35 to 45 percent

A Horizon
Hue: 10YR
Value: 2 to 4
Chroma: 1 to 3
Texture: loam, clay loam, or sandy clay loam
Reaction: neutral or slightly alkaline

Bt Horizon
Hue: 7.5YR or 10YR
Value: 2 to 4
Chroma: 1 or 2
Texture: sandy clay loam, clay loam, sandy clay, or clay
Reaction: neutral or slightly alkaline

Btk or Bk Horizons
Hue: 7.5YR or 10YR
Value: 3 to 6 (increases with depth)
Chroma: 1 to 4 (increases with depth)
Texture: sandy clay loam, clay loam, sandy clay, or clay
Calcium carbonate equivalent: 5 to 30 percent
Effervescence: none to strong

BCk Horizon
Hue: 7.5YR or 10YR
Value: 5 to 8
Chroma: 2 to 6
Texture: loam, clay loam, or sandy clay loam
Calcium carbonate equivalent: 15 to 50 percent
Effervescence: none to strong

COMPETING SERIES: There are no other series in this family. Similar soils include Abilene (TX), Blanket (TX), Cuero (TX), Ramadero (TX), Runge (TX), and Smithville (TX) series.
Abilene, Blanket, and Smithville soils: have mean annual soil temperature of less than 22 degrees C (72 degrees F).
Cuero, Ramadero, Runge, and Smithville soils: have a fine-loamy particle-size control section. In addition, Runge soils have a mollic epipedon less than 20 in thick.

GEOGRAPHIC SETTING:
Parent material: loamy alluvial sediments of Holocene age
Landscape: coastal plain
Landform: base slope on draw
Slope: dominantly 0 to 5 percent but mainly less than 2 percent.
Mean annual air temperature range: 21 to 24 (70 to 75 degrees F)
Mean annual precipitation range: 635 to 864 mm (25 to 34 in)
Precipitation Pattern: Precipitation mostly falls during the spring months and then during the fall months. December through March are the driest months.
Frost-free period: 250 to 300 days
Elevation: 30.5 to 122 m (100 to 400 ft)
Thornthwaite annual P-E indices: 31 to 44

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Edroy (TX), Hidalgo (TX), Lattas (TX), Orelia (TX), Raymondville (TX), Runge (TX), Victoria TX), Weesatche (TX), and Willacy (TX) series.
Hidalgo, Orelia, Runge, Weesatche, and Willacy soils: have less than 35 percent clay in the particle-size control section; on a slightly higher position.
Edroy soils: have a clayey surface; are in depressions
Lattas and Victoria soils: have a clayey surface: are on coastal plain flats
Raymondville soils: do not have an argillic horizon; are on coastal plain flats

DRAINAGE AND PERMEABILITY: Well drained. Moderately slow permeability. Runoff is negligible on slopes of less than 1 percent, very low on 1 to 3 percent slopes, and low on 3 to 5 percent slopes.

USE AND VEGETATION: Used mainly as cropland but some areas are in rangeland. Cultivated crops are cotton, grain sorghum, and corn. Native grasses include Arizona cottontop, little bluestem, sideoats grama, curlymesquite, and Texas bristlegrass. Woody invaders are whitebrush, spiny hackberry, and mesquite.

DISTRIBUTION AND EXTENT: Northern and Central Rio Grande Plain and Gulf Coast Prairies, Texas; LRR I; MLRA 83A, 83C. The series is moderately extensive.

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

SERIES ESTABLISHED: Bee County, Texas; 1932.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Mollic epipedon - 0 to 64 cm (0 to 25 in)

Argillic horizon -28 to 84 cm (11 to 33 in)

Calcic horizon - 64 to 163 cm (25 to 64 in)

ADDITIONAL DATA: NSSL Lincoln lab. sample numbers 71L843-71L845 and 71L846-71L848 for mineralogy and particle size analyses and samples T2L207-T2L214 for particle size analyses and water content at 15 bars.

National Cooperative Soil Survey
U.S.A.