LOCATION HAGENBARTH IDEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive Pachic Argicryolls
TYPICAL PEDON: Hagenbarth silt loam--on a southeast-facing convex slope of 2 percent under grass and sagebrush at 6,520 feet elevation. (When described on October 27, 1980, the soil was moist to 16 inches. Colors are for dry soil unless otherwise stated.)
A--0 to 6 inches; very dark grayish brown (10YR 3/2) silt loam; black (10YR 2/1) moist; weak fine subangular blocky structure; soft, friable, slightly sticky and slightly plastic; common fine and very fine and few medium and coarse roots; few very fine tubular pores; neutral (pH 7.2); clear smooth boundary. (4 to 20 inches thick)
Bt1--6 to 16 inches; very dark grayish brown (10YR 3/2) loam; very dark gray (10YR 3/1) moist; weak fine angular blocky structure; slightly hard, firm, slightly sticky and moderately plastic; common fine and very fine, and few medium roots; few very fine tubular pores; few faint clay films on faces of peds; neutral (pH 7.2); clear wavy boundary. (6 to 10 inches thick)
Bt2--16 to 21 inches; dark grayish brown (10YR 4/2) clay loam; very dark gray (10YR 3/1) moist; moderate medium and fine angular blocky structure; hard, very firm, moderately sticky and moderately plastic; common very fine and fine roots; few very fine tubular pores; very few faint clay films on faces of peds and in pores; neutral (pH 7.2); clear wavy boundary. (4 to 24 inches thick)
Bt3--21 to 29 inches; brown (10YR 4/3) clay loam; dark brown (10YR 3/3) moist; moderate medium and fine subangular blocky structure; hard, very firm, moderately sticky and moderately plastic; few fine and medium roots; few very fine tubular pores; few faint clay films on faces of peds and in pores; 5 percent gravel; neutral (pH 6.9); clear wavy boundary. (4 to 16 inches thick)
BC--29 to 42 inches; grayish brown (10YR 5/2) gravelly sandy clay loam; brown (10YR 4/3) moist; moderate fine subangular blocky structure; slightly hard, firm, slightly sticky and slightly plastic; few very fine tubular pores; 20 percent gravel; neutral (pH 6.6); clear smooth boundary. (0 to 14 inches thick)
C--42 to 62 inches; grayish brown (10YR 5/2) gravelly sandy clay loam; brown (10YR 4/3) moist; massive; soft, friable, slightly sticky and slightly plastic; 20 percent gravel; neutral (pH 6.8).
TYPE LOCATION: Clark County, Idaho; Antelope Valley; about 3 miles east and 6 miles north of Kilgore; 100 feet south and 2,000 feet east of northwest corner of sec. 14, T.13N., R.39E.
RANGE IN CHARACTERISTICS:
Mollic epipedon thickness - 17 to 44 inches
Average annual soil temperature - 38 to 43 degrees F.
Percent clay in control section - 18 to 35 percent
Coarse fragments in the particle-size control section - 5 to 20 percent
Average summer soil temperature - 52 to 58 degrees F.
Depth to the base of the argillic - 26 to 60 inches
Depth to bedrock - more than 40 inches
A horizon Hue - 7.5YR or 10YR Value - 2 through 5 dry, 2 or 3 moist
Chroma - 1 through 3, dry or moist
Reaction - moderately acid to slightly alkaline
Bt horizon upper part has mollic characteristics
Clay in individual layers - 18 to 40 percent (increasing with depth)
Texture - L, CL, SCL, GR-SCL, SIL, SICL, GR-L or GR-CL
Hue - 7.5YR or 10YR
Value - 3 to 5 moist, 3 through 6 dry
Chroma - 1 through 6, dry or moist
Reaction - slightly alkaline through moderately acid
C horizon (when present)
Clay - 21 to 27 percent
Texture - GR-SCL, GRV-SCL, GRX-SCL or GR-CL
Hue - 10YR or 7.5YR
Value - 4 or 5 moist, 5 or 6 dry
Chroma - 2 or 3, dry or moist
Effervescence (when present) - not a result of pedogenic process from overlaying layers
COMPETING SERIES: These are the Bachus, Bavdark, Benteen, Cambern, Clayburn, Crystalbutte, Davtone, Decross, Dehana, Demast, Dranburn, Dranyon, Echemoor, Gordo, Harmehl, Millerlake, Senchert, Southmount, Squawval, Stubbs, Thulepah, Vadnais, and Winu series. Bachus, Benteen, Cambern, Echemor, Harmehl, Senchert, Squawval, Stubbs, Vadnais, and Winu soils are less than 40 inches deep to lithic or paralithic contact. Clayburn soils are usually moist. Crystalbutte soils have 2Bt horizons. Dehana, Demast, and Dranyon soils have more than 20 percent rock fragments in the control section. Davtone and Gordo soils have hues of 5YR or 2.5YR. Decross and Millerlake soils have pedogenic calcium carbonate layer immediately below the argillic horizon. Thulepah soils have an average annual soil temperature of 43 to 47 degrees F, and the depth to the base of the argillic is below 60 inches. Southmount soils have a mean annual soil temperature of less than 38 degrees F. Bavdark soils have an ustic soil moisture regime. Dranburn soils have a particle-size control section having over 45 percent silt (silty clay loam) and have a mean annual summer soil temperature of 49 to 52 degrees F.
GEOGRAPHIC SETTING: Hagenbarth soils are on basalt, andesite, quartzite, siltstone and rhyolite plains, terraces and foothills at elevations of 5,200 to 9,000 feet. Slopes are from 1 to 60 percent. This soil formed dominantly in mixed loess, residuum, colluvium and slope alluvium. The mean annual precipitation is 14 to 26 inches and comes dominantly in the winter and spring months. The mean annual temperature is 35 to 42 degrees F. The frost-free period is 30 to 90 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Sawtelpeak(T) and Sudpeak soils. Sawtelpeak soils have more than 35 percent clay. Sudpeak soils have more than 35 percent clay in the control section. These soils are in low lying concavities on alluvial plains.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; slow or moderately slow permeability.
USE AND VEGETATION: These soils are used for rangeland. Principal native vegetation is mountain big sagebrush, Idaho fescue, yarrow, bluebunch wheatgrass, slender wheatgrass, arrowleaf balsamroot, and in a few areas pine reedgrass and quaking aspen.
DISTRIBUTION AND EXTENT: Southeastern Idaho. Hagenbarth soils are moderately extensive.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Fremont County, Idaho, 1989.
REMARKS: Diagnostic horizons and features recognized in this soil are:
Mollic epipedon - the zone from the surface to about 29 inches (A, Bt1, Bt2, and Bt3 horizons)
Argillic horizon - the zone from about 6 to 29 inches (Bt1, Bt2, and Bt3 horizons)
Xeric soil moisture regime
Particle-size control section - the zone from about 6 to 26 inches (upper 20 inches of the argillic). Bt1, Bt2, and part of Bt3 horizons)