LOCATION TEXROY TX+OK
Established Series
Rev. TCB-SLM-BAV
10/2022
TEXROY SERIES
The Texroy series consists of very deep, well drained, moderately permeable soils that formed in calcareous, loamy alluvium and eolian deposits of late-Pleistocene to early Holocene age. These soils are on nearly level to gently sloping stream terraces. Slope range is 0 to 5 percent. Mean annual precipitation is about 508 mm (20 in), and mean annual air temperature is about 15 degrees C (59 degrees F).
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Pachic Argiustolls
TYPICAL PEDON: Texroy loam, on a 1.5 percent slope in rangeland at an elevation of about 892 meters (2,928 ft). (Colors are for dry soil unless otherwise stated.)
A--0 to 20 cm (0 to 8 in); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; loam; moderate very fine granular structure; hard, friable; many very fine and many fine roots; many worm casts; noneffervescent; neutral, pH 7.0; clear smooth boundary. Thickness of the A horizon is 12 to 45 cm (5 to 18 in)
Bt1--20 to 41 cm (8 to 16 in); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; loam; moderate very coarse prismatic parting to moderate fine subangular blocky structure; hard, friable; many very fine roots; few clay films on all faces of peds; many worm casts; very slightly effervescent; slightly alkaline, pH 7.6; gradual smooth boundary.
Bt2--41 to 61 cm (16 to 24 in); brown (10YR 4/3), dark brown (10YR 3/3), moist; loam; moderate coarse prismatic parting to weak medium subangular blocky structure; hard, friable; many very fine roots; many very fine and many fine tubular pores; few clay films on all faces of peds; slightly effervescent; moderately alkaline, pH 8.3; gradual smooth boundary. Combined thickness of upper Bt horizons is 15 to 131 cm (6 to 52 in)
Btk1--61 to 107 cm (24 to 42 in); brown (7.5YR 5/3), brown (7.5YR 4/3), moist; loam; moderate very coarse prismatic parting to weak medium subangular blocky structure; hard, friable; common very fine and common fine tubular pores; few clay films on all faces of peds; few carbonate coats on surfaces along root channels and few carbonate coats on all faces of peds; common worm casts; slightly effervescent; moderately alkaline, pH 8.3; gradual smooth boundary.
Btk2--107 to 132 cm (42 to 52 in); brown (7.5YR 5/3), brown (7.5YR 4/3), moist; loam; moderate very coarse prismatic parting to weak medium subangular blocky structure; hard, friable; common very fine and common fine tubular pores; few clay films on all faces of peds; few carbonate coats on all faces of peds; slightly effervescent; moderately alkaline, pH 8.3; clear smooth boundary.
Btk3--132 to 165 cm (52 to 65 in); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; loam; moderate coarse prismatic parting to weak fine subangular blocky structure; hard, friable; common very fine and common fine tubular pores; few clay films on all faces of peds; few carbonate coats on all faces of peds; common fine moderately coherent carbonate concretions and common fine noncoherent cemented carbonate masses; strongly effervescent; moderately alkaline, pH 8.3; gradual smooth boundary. Combined thickness of the Btk horizons is 28 to 165 cm (11 to 65 in)
2Bk--165 to 203 cm (65 to 79 in); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; fine sandy loam; weak very coarse prismatic structure; hard, friable; common very fine and common fine tubular pores; few carbonate coats on prism faces; strongly effervescent; moderately alkaline, pH 8.3.
TYPE LOCATION: Roberts County, Texas; From the intersection of Texas Highway 152 and Farm to Market Road 282 on the west side of Pampa; 7 miles north on Farm to Market Road 282, then continue north approximately 15.1 miles on Morrison Ranch Road; 75 ft (23 m) west in rangeland.
USGS topographic quadrangle: Adobe Creek SE, Texas
Latitude: 35 degrees, 50 minutes, 28.94 seconds N
Longitude: 101 degrees, 1 minutes, 32.01 seconds W
Datum: WGS84
Decimal Degrees
Latitude: 35.8413700
Longitude: -101.0256000
UTM Northing: 3968250
UTM Easting: 317064
UTM zone 14S
RANGE IN CHARACTERISTICS:
Soil moisture: An ustic moisture regime bordering on aridic. The soil moisture control section is dry in some or all parts for more than 180 but less than 220 days, cumulative, in normal years. July through August and December through February are the driest months. These soils are intermittently moist in September through November and March through June.
Solum thickness: more than 203 cm (80 in)
Thickness of the mollic epipedon: 50 to 152 cm (20 to 60 in)
Depth to argillic horizon: 12 to 76 cm (5 to 30 in)
Thickness of argillic horizon: 36 to 188 cm (14 to 74 in)
Depth to secondary calcium carbonate: 12 to 119 cm (5 to 47 in)
Depth to calcic horizon (where present): 110 to greater than 203 cm (43 to greater than 80 in)
Depth to lithologic discontinuity (where present): 109 to greater than 203 cm (43 to greater than 80 in)
Thickness of lithologic discontinuity (where present): 0 to 94 cm (0 to 37 in)
Particle size control section (weighted average):
Total clay: 18 to 35 percent
Silicate clay: 18 to 35 percent
Clay-sized carbonate: 0 to 2 percent
Total sand: 20 to 70 percent
Ap horizon:
Hue: 7.5YR or 10YR
Value: 3 to 5 dry, 2 or 3 moist
Chroma: 1 to 3, dry or moist
Texture: fine sandy loam, loam
Total clay content: 10 to 27 percent
Clay-sized carbonate content: 0 percent
Total sand content: 23 to 75 percent
Effervescence: none to slight
Reaction (pH): neutral to slightly alkaline (6.6-7.8)
Bt horizon:
Hue: 5YR or 10YR
Value: 2 to 5 dry, 2 or 3 moist
Chroma: 1 to 4, dry or moist
Texture: sandy clay loam, loam, clay loam
Total clay content: 18 to 35 percent
Total Sand content: 20 to 70 percent
Effervescence: none to slight
Reaction (pH): neutral to slightly alkaline (6.6-7.8)
Btk horizon(s):
Hue: 5YR to 10YR
Value: 4 to 6 dry, 3 to 5 moist
Chroma: 2 to 6, dry or moist
Texture: loam, sandy clay loam, clay loam
Total clay content: 18 to 35 percent
Clay-sized carbonate content: 1 to 6 percent
Total sand content: 20 to 60 percent
Identifiable calcium carbonate: amount-1 to 5 percent; size-fine to medium; kind-films, masses, nodules, or finely disseminated carbonate
Calcium carbonate equivalent: 1 to 14 percent
Effervescence: slight to violent
Reaction (pH): slightly alkaline to moderately alkaline (7.4-8.4)
2Bt and 2Btk horizons (where present):
Hue: 7.5 or 10YR
Value: 3 to 6 dry, 2 to 5 moist
Chroma: 1 to 4 moist or dry
Texture: silty clay loam, silty clay, or clay
Total clay content: 35 to 50 percent
Sand content: 5 to 20 percent
Identifiable calcium carbonate: amount-0 to 5 percent; size-fine to medium; kind-films, masses, nodules, or finely disseminated carbonate
Calcium carbonate equivalent: 0 to 10 percent
Effervescence: none to violent
Reaction (pH): slightly alkaline to moderately alkaline (7.4-8.4)
Bk, BCk, Ck, 2Bk, 2BCk, or 2Ck horizons (where present):
Hue: 5YR to 10YR
Value: 4 to 6, 4 to 5 moist
Chroma: 2 to 6 moist or dry
Texture: loamy sand, loamy fine sand, sandy loam, fine sandy loam, loam, sandy clay loam, clay loam
Total clay content: 4 to 35 percent
Silicate clay content: 4 to 35 percent
Clay-sized carbonate: 1 to 6 percent
Sand content: 5 to 80 percent
Rock fragments: amount-0 to 5 percent; size-fine to coarse gravels; kind-indurated subangular or irregular strongly cemented carbonate nodules or caliche fragments
Identifiable calcium carbonate: amount-5 to 10 percent; size-fine to medium; kind-films, filaments, masses, nodules or finely disseminated carbonate
Calcium carbonate equivalent: 2 to 25 percent
Effervescence: slight to violent
Reaction (pH): slightly alkaline to moderately alkaline (7.4-8.4)
COMPETING SERIES: These are the
Altus,
Cuero,
Smithville, and
Tipton series. Similar soils include the
Farnum series.
Altus,
Cuero,
Smithville, and
Tipton series: have a soil moisture regime that is moist for longer periods of time
Farnum series: have a slightly cooler soil temperature regime of less than 59 degrees F
GEOGRAPHIC SETTING:
Parent material: Parent material: loamy alluvial and eolian sediments of Pleistocene age
Landscape: Dissected high plains
Landform: stream terraces, footslopes of hillslopes
Slope: 0 to 5 percent
Mean annual precipitation: 457 to 660 mm (18 to 26 in)
Thornthwaite annual P-E Index: 25 to 36
Mean annual air temperature: 13.3 to 15 degrees C (56 to 59 degrees F).
Frost-free period: 180 to 200 days
Elevation: 609.6 to 914.4 m (2,000 to 3,000 ft)
GEOGRAPHICALLY ASSOCIATED SOILS:
These are the
Abbie,
Ady,
Alibates,
Alopark,
Berda,
Bippus,
Catesby,
Chiquita,
Darrouzett,
Guadalupe,
Irene,
Kroeker,
Laverne,
Manson,
Mobeetie,
Mocane,
Oklark,
Paloduro,
Plemons,
Potter,
Slapout,
Sprone,
Veal, and
Wespur soils.
Abbie,
Alibates, and
Kroeker soils: occur on similar positions; and have a mollic epipedon less than 50 cm (20 in) thick
Ady soils: occur on similar positions; and have an ochric epipedon
Alopark,
Slapout, and
Veal soils: occur on adjacent hillslopes; have an ochric epipedon; do not have argillic horizons; and have a calcic horizon present within 100 cm (40 in) of the soil surface
Berda soils: occur on adjacent hillslopes; have an ochric epipedon; and do not have an argillic horizon
Bippus,
Sprone, and
Wespur soils: occur on lower floodplain landscapes; and do not have an argillic horizon
Catesby and
Oklark soils: occur on adjacent hillslopes; do not have argillic horizons; have a coarse-loamy particle-size class; and have a calcic horizon present within 100 cm (40 in) of the soil surface
Chiquita soils: occur on similar positions; have an ochric epipedon; and have a calcic horizon present within 100 cm (40 in) of the soil surface
Darrouzett soils: occur on similar positions; have a fine particle-size class, and have slickensides within the upper 100 cm of the profile
Guadalupe soils: occur on lower floodplain landscapes; have an ochric epipedon, and do not have a calcic horizon
Irene soils: occur on similar positions; and have a fine-silty particle size class
Laverne soils: occur on adjacent hillslopes; and have a lithic contact within 50 cm (20 in) of the soil surface
Manson soils: occur on slightly higher hillslopes; have a mollic epipedon less than 50 cm (20 in) thick; and have a calcic horizon within 60 cm (24 in) of the soil surface
Mobeetie soils: occur on adjacent hillslopes; have an ochric epipedon; do not have an argillic horizon; and have a coarse-loamy particle-size control section
Mocane soils: occur on adjacent hillslopes, have an ochric epipedon, do not have an argillic horizon, and have a sandy particle-size control section
Paloduro soils: occur on adjacent hillslopes; do not have an argillic horizon; and do not have an argillic horizon
Plemons soils: occur on slightly higher hillslopes; have an ochric epipedon; and have a calcic horizon within 60 cm (24 in) of the soil surface
Potter and
Veal soils: occur on higher hillslopes, have an ochric epipedon, and have carbonatic mineralogy
DRAINAGE AND PERMEABILITY:
Drainage: well drained
Permeability: moderate
Runoff: negligible on 0 to 1 percent slopes and low on 1 to 5 percent slopes.
USE AND VEGETATION:
Major uses: crop production and livestock grazing
Native vegetation: Dominated by mixed tallgrasses and midgrasses, mainly sand and little Bluestem. Sideoats grama may be abundant along with many perennial forbs and legumes. Minor amounts of woody species may occur including skunkbush, hackberry, or sandplum.
Crops: wheat, grain sorghum, alfalfa, and sorghum/sudan grass.
Ecological sites assigned to phases and components of this series are listed below. Current ecological site assignments are in Web Soil Survey.
DISTRIBUTION AND EXTENT:
General area: northwestern Oklahoma, southwest Kansas, and the Oklahoma and Texas Panhandles
Land Resource Region: H - Central Great Plains Winter Wheat and Range Region
Major Land Resource Area: 77E - Southern High Plains, Breaks
Extent: moderate
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Nolan County, Texas; 1978.
REMARKS:
These soils were formerly included in the Bippus and Tipton series.
Diagnostic horizons and features recognized in this pedon:
User Pedon ID: P1981TX393022
Mollic epipedon: 0 to 61 cm (0 to 24 in)(A, Bt1, Bt2 horizons)
Argillic horizon: 20 to 165 cm (8 to 65 in) (Bt1, Bt2, Btk1, Btk2, Btk3 horizons)
Secondary Carbonates: 61 to 203 cm (24 to 80 in) (Btk1, Btk2, Btk3, and 2Bk horizons)
Lithologic discontinuity: 163 to 203 cm (64 to 80 in) (2Bk horizon)
ADDITIONAL DATA: KSSL data available: S1997TX065003 (Carson Co., TX); S2017OK045001 (Ellis County, OK); S2017OK045006 (Ellis County, OK)
Taxonomic Version: Keys to Soil Taxonomy, Twelfth Edition, 2014
National Cooperative Soil Survey
U.S.A.