LOCATION AZULUGAR TX
Established Series
JAC
07/2012
AZULUGAR SERIES
The Azulugar series consists of very deep, somewhat excessively drained soils that formed in alluvium. Azulugar soils are on fan remnants. Slopes range from 3 to 10 percent. Mean annual air temperature is about 65 degrees F. (18 degrees C) and the mean annual precipitation is about 9 inches (229 mm).
TAXONOMIC CLASS: Mixed, thermic Typic Torripsamments
TYPICAL PEDON: Azulugar sand - rangeland. (Colors are for dry soil unless otherwise noted).
A--0 to 3 inches, (0 to 8 cm); light brown (7.5YR 6/4) sand, brown (7.5YR 5/4) moist; 5 percent clay; single grain; loose, nonsticky and nonplastic; few very fine and fine roots; slightly effervescent; moderately alkaline (pH 8.2); diffuse wavy boundary. (2 to 8 inches [5 to 20 cm] thick)
C1--3 to 12 inches, (8 to 31 cm); light brown (7.5YR 6/4) sand, brown (7.5YR 5/4) moist; 6 percent clay; single grain; loose, nonsticky and nonplastic; few very fine and fine roots; slightly effervescent; moderately alkaline (pH 8.2); diffuse wavy boundary.
C2--12 to 64 inches, (31 to 162 cm); pink (7.5YR 7/4) loamy sand, light brown (7.5YR 6/4) moist; 12 percent clay; single grain; loose, nonsticky and nonplastic; few very fine roots; 2 percent fine faint carbonate masses; strongly effervescent; moderately alkaline (pH 8.3).
TYPE LOCATION: Hudspeth County, Texas; from the Fort Hancock exit on Interstate Highway 10, 5.1 miles east on Interstate Highway 10 to Wilkey Road; 7.1 miles north on Wilkey Road; 0.71 mile left on dirt road and 150 feet southeast into rangeland. (Campo Grande Mountain, TX USGS 7.5 minute topographic quadrangle; Latitude 31 degrees, 19 minutes, 9.88 seconds North; Longitude 105 degrees, 44 minutes, 18.05 seconds West, NAD 83; UTM easting: 429748 m, UTM northing 3465237 m, UTM Zone 13, NAD83.)
RANGE IN CHARACTERISTICS:
Soil moisture: Typic aridic soil moisture regime
Soil temperature: 62 to 65 degrees F. (17 to 18 degrees C)
Particle size control section (weighted average):
Rock fragment content: 0 to 10 percent gravel
Clay plus silt content: greater than 10 percent
A horizon
Hue: 7.5YR, 10YR
Value: 6 or 7 dry, 4 or 5 moist
Chroma: 3 or 4, dry or moist
Effervescence: slight to strong
Reaction: moderately alkaline
C horizon
Hue: 7.5YR, 10YR
Value: 6 or 7 dry, 4 through 6 moist
Chroma: 3 through 6, dry or moist
Effervescence: slight to strong
Reaction: moderately alkaline to strongly alkaline
COMPETING SERIES: These are the
Birdcanyon (CA),
Bluepoint (NV),
Brazito (NM),
Cajon (CA)
Copia (NM),
Hembrillo (NM),
Koehn (CA), Maynard Lake (NV),
Moapa (NV),
Morongo (T) (CA),
Pintura (UT),
Toquop (NV),
Yander (CA) and
Yturbide (NM) series. Birdcanyon, Bluepoint, Cajon, Koehn, Maynard Lake, Moapa, Morongo, Toquop, and Yander soils are located in the
Mohave Desert and receive precipitation mainly in the winter. Brazito, Copio, Pintura soils have less than 10 percent clay plus silt in the control section. Copia soils are noneffervescent throughout. Hembrillo soils have gypsum in the control section. Yturbide soils have 15 to 35 percent fragments in the control section.
GEOGRAPHIC SETTING: Azulugar soils are on fan remnants on a sand plain at elevations of 3,000 to 4,000 feet (914 to 1219 m). Slopes range from 3 to 10 percent. These soils formed in alluvium and have less than 11 percent clay plus silt in the control section. The mean annual precipitation is 8 to 11 inches (203 to 279 mm). The mean annual air temperature is 62 to 67 degrees F. (17 to 19 degrees C). The frost-free period is 200 to 240 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Copia (NM) and
Nations (TX) soils. Copia soils are noneffervescent throughout and are on dunes. Nations soils have a petrocalcic horizon and are in lower positions on the landscape.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; very low runoff on slopes of less than 5 percent, low runoff on slopes of 5 to 10 percent; rapid permeability.
USE AND VEGETATION: Used for livestock grazing and wildlife habitat. Vegetation consists of giant dropseed, spike dropseed, mesa dropseed, sand sagebrush, mesquite, and soaptree yucca.
DISTRIBUTION AND EXTENT: Trans-Pecos Texas, LRR D, MLRA 42, Southern Desertic Basins, Plains, and Mountains. The series is of minor extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES PROPOSED: Hudspeth County, Texas. Soil Survey of Hudspeth County, Texas, Main Part 2010.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle size control section - the zone from 10 to 40 inches (25 to 100 cm) (C1, C2 horizons)
Ochric epipedon - the zone from 0 to 3 inches (0 to 8 cm) (A horizon)
Classified according to Soil Taxonomy, Second Edition, 1999; Keys to Soil Taxonomy, Eleventh Edition, 2010
Revised for the correlation of Hudspeth County, Texas (Main Part) and Culberson County, Texas (Main Part); July, 2012, NMS
ADDITIONAL DATA: None
National Cooperative Soil Survey
U.S.A.