LOCATION HETZ NMEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, calcareous, mesic Typic Endoaquolls
TYPICAL PEDON: Hetz clay loam, on an east facing, planar, 1 percent slope in rangeland at an elevation of 7,020 feet. (Colors are for dry soil unless otherwise noted.) When described on November 22, 1995, the soil was saturated throughout.
A--0 to 18 inches; dark gray (10YR 4/1) clay loam, very dark gray (10YR 3/1) moist; weak fine granular structure; hard, firm, sticky and plastic; common very fine roots; few very fine tubular pores; slightly effervescent; few fine distinct yellowish brown (10YR 5/8) moist redox concentrations; slightly alkaline (pH 7.8); clear smooth boundary. (1 to 3 inches thick)
Bwg1--18 to 35 inches; light brownish gray (10YR 6/2) clay loam, dark gray (10YR 4/1) moist; weak fine subangular blocky structure; very hard, firm, sticky and plastic; common very fine roots; few very fine tubular pores; few fine soft round carbonate masses; slightly effervescent; few fine distinct dark yellowish brown (10YR 4/6) redox concentrations; moderately alkaline(pH 8.0); clear smooth boundary. (3 to 10 inches thick)
Bwg2--35 to 60 inches; light brownish gray (10YR 6/2) sandy clay loam, grayish brown (10YR 5/2) moist; weak fine subangular blocky structure; very hard, firm, sticky and plastic; few very fine roots; few very fine tubular pores; common fine soft round carbonate masses; strongly effervescent; many medium distinct yellowish brown (10YR 5/6) redox concentrations; 5 percent pebbles moderately alkaline (pH 8.0); clear smooth boundary.
Cg--60 to 80 inches; gray (10YR 6/1) sandy clay loam, gray (10YR 5/1) moist; massive; hard, firm, sticky and plastic; few very fine roots; few very fine tubular pores; few coarse soft round masses of carbonate; slightly effervescent; many coarse distinct yellowish brown (10YR 5/4) redox concentrations; moderately alkaline (pH 8.0); clear smooth boundary.
TYPE LOCATION: Rio Arriba County, New Mexico; about 1mile west of El Vado Reservoir; 2,480 feet north and 50 feet east of the southwest corner of Sec. 13, T. 28 N., R. 1 E.; Apache Mesa USGS quad; lat. 36 degrees 38 minutes 02 seconds N. and long. 106 degrees 47 minutes 15 seconds W., NAD 27.
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is affected by precipitation that is evenly distributed throughout the year with the exception of a significant peak during July and August, and a significant decrease from April through June. June is the driest month. Runon moisture and high water table saturate the Hetz nearly year round. (Aquic moisture regime.)
Mean annual soil temperature: 45 to 50 degrees F
Mean summer soil temperature: 55 to 65 degrees F
Depth to endosaturation: 10 to 20 inches March through May
Particle-size control section (weighted average)
Clay content: 28 to 35 percent
Sand content: 10 to 40 percent
A horizon:
Hue: 10YR to 2.5Y
Value: 3 to 5 dry or moist
Chroma: 1 to 2 dry or moist
Calcium carbonate equivalent: 0 to 5 percent
EC (mmhos/cm): 0 to 2
SAR: 0 to 5
Bwg horizon:
Hue: 10YR to 2.5Y
Value: 4 to 6 dry or moist
Chroma: 1 to 2 dry or moist
Texture: sandy clay loam, loam, or clay loam
Clay content: 28 to 35 percent
Calcium carbonate equivalent: 0 to 5 percent
EC (mmhos/cm): 0 to 2
SAR: 0 to 5
Reaction: slightly to moderately alkaline
Cg horizon:
Hue: 10YR to 2.5Y
Value: 4 to 6 dry or moist
Chroma: 1 to 2 dry or moist
Texture: clay loam, sandy clay loam
Clay content: 28 to 35 percent
Calcium carbonate equivalent: 0 to 5 percent
EC (mmhos/cm): 0 to 2
SAR: 0 to 5
Reaction: slightly to moderately alkaline
COMPETING SERIES: These are the Canisteo(MN), Hooppole Jeffers, Kish(IL) and the Tilfer(IA+MN) series.
Canisteo,
Jeffers,
Kish and
Tappan soils receive more than 26 inches of average annual precipitation, and formed in glacial parent materials.
Hooppole soils are calcareous to the surface.
Tilfer soils have hard bedrock within 40 inches.
GEOGRAPHIC SETTING:
Parent material: alluvium derived from sandstone and shale
Landform: wet drainageways, valley bottoms
Slopes: 0 to 3 percent
Elevation: 6,900 to 7,300 feet
Mean annual temperature: 45 to 48 degrees F
Mean annual precipitation: 14 to 16 inches
Precipitation pattern: Precipitation falls mostly during the months of November through March and July through October. June is the driest month. Total snowfall averages about 3 to 4 feet with snowmelt lasting into April.
Frost-free period: 100 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gojiya, Orlie, and Vosburg soils. Gojiya soils are saline and occupy similar positions. The Orlie and Vosburg soils have argillic horizons and are on higher valley slopes.
DRAINAGE AND PERMEABILITY: Somewhat poorly and poorly drained, slow runoff, moderately slow permeability, ponded for short periods during March through May.
USE AND VEGETATION: The major uses are livestock grazing, native hayland, and wildlife habitat. The native plant community is Kentucky bluegrass, western wheatgrass, sedges and rushes.
DISTRIBUTION AND EXTENT: Northwestern New Mexico; MLRA 36; minor extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Rio Arriba County, New Mexico, Jicarilla Apache Reservation, Parts of Rio Arriba and Sandoval Counties Soil Survey. 10/2000. The name Hetz is coined.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 10 to 40 inches. (A, Bwg1, Bwg2 horizons)
Mollic epipedon: The zone from 0 to 18 inches. (A horizon)
Cambic horizon: The zone from 18 to 60 inches.
Redoximorphic concentrations: In the zone from 0 to 80 inches. (A, Bwg1, Bwg2, Cg horizon)
Endosaturation: The zone of saturation at 18 to 80 inches. (Bwg1, Bwg2, and Cg horizons)
The assignment of the cation-exchange activity class is inferred from lab data from soils in the surrounding area.
Taxonomic Version: Second Edition, 1999
ADDITIONAL DATA: