LOCATION CABLAB                  NV+ID

Established Series
Rev. JBF-TM-JVC
06/2017

CABLAB SERIES

The Cablab series consists of very deep, somewhat poorly drained soils that formed in alluvium derived from mixed rocks. Cablab soils are on stream terraces. Slopes are 4 to 15 percent. The mean annual precipitation is about 360 mm and the mean annual temperature is about 6 degrees C.

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive Aquic Cumulic Haplocryolls

TYPICAL PEDON: Cablab loam--forestland. (Colors are for dry soil unless otherwise noted.)

A1--0 to 10 cm; grayish brown (10YR 5/2) loam, very dark grayish brown (10YR 3/2) moist; moderate fine and medium subangular blocky structure parting to strong fine granular; soft, very friable, slightly sticky and slightly plastic; common very fine and fine roots; common fine tubular pores; 5 percent gravel; neutral (pH 7.0); clear smooth boundary. (5 to 25 cm thick)

A2--10 to 23 cm; grayish brown (10YR 5/2) gravelly loam, very dark grayish brown (10YR 3/2) moist; strong fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine through coarse roots; common fine tubular pores; 15 percent gravel; neutral (pH 7.0); clear smooth boundary. (10 to 25 cm thick)

A3--23 to 41 cm; 60 percent grayish brown (10YR 5/2) and 40 percent brown (10YR 5/3) gravelly loam, 60 percent very dark grayish brown (10YR 3/2) and 40 percent dark brown (10YR 3/3) moist; moderate fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine through coarse roots; common fine tubular pores; 15 percent gravel; neutral (pH 7.0); clear smooth boundary. (0 to 25 cm thick)

AC--41 to 69 cm; pale brown (10YR 6/3) gravelly loam, dark brown (10YR 3/3) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; common very fine through medium roots; common fine tubular pores; common distinct brownish yellow (10YR 6/6) masses of iron accumulation in the matrix and common distinct dark gray (10YR 4/1) zones of iron depletion; 15 percent gravel; neutral (pH 7.0); clear smooth boundary. (15 to 50 cm thick)

Ab--69 to 84 cm; brown (10YR 5/3) gravelly loam, dark brown (10YR 3/3) with lenses of black (10YR2/2) moist; moderate fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine through medium roots; common fine tubular pores; many fine distinct brownish yellow (10YR 6/6) masses of iron accumulation in the matrix; 25 percent gravel; neutral (pH 7.0); clear smooth boundary. (0 to 25 cm thick)

C--84 to 109; pale brown (10YR 6/3) gravelly loam, dark brown (10YR 3/3) moist; massive; soft, very friable, slightly sticky and slightly plastic; common very fine through medium roots; common fine tubular pores; many coarse distinct brownish yellow (10YR 6/6) masses of iron accumulation lining root channels and coating rock fragments; 20 percent gravel; neutral (pH 7.0); clear smooth boundary. (15 to 50 cm thick)

2C--109 to 152 cm; variegated colors, stratified extremely gravelly loamy coarse sand to very gravelly loamy sand; massive; soft, very friable, nonsticky and nonplastic; pockets of many very fine and fine roots; many very fine through medium tubular pores; many coarse distinct brownish yellow (10YR 6/6) masses of iron accumulation; 55 percent gravel, 5 percent cobbles, and 5 percent stones; neutral (pH 7.0).

TYPE LOCATION: Nye County, Nevada; on the Toiyabe National Forest in the Toiyabe Range along San Juan Creek; about 300 feet west and 2,300 feet north of the southeast corner of section 19, T. 15 N., R. 42 E.; USGS Reese River Butte 7.5 minute topographic quadrangle; latitude 39 degrees 08 minutes, 56.0 seconds N and longitude 117 degrees 17 minutes 17.4 seconds W; WGS84 Decimal Degrees 39.1489722 latitude, -117.2872500 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually moist in the moisture control section during winter and spring, dry during summer and fall; xeric soil moisture regime.
Mean annual soil temperature: 6 to 7 degrees C.
Mean summer soil temperature: 4 to 24 degrees C.
Mollic epipedon thickness: 40 to 60 cm.
Depth to strongly contrasting sandy-skeletal material: 100 to 150 cm.
Depth to redox concentrations and probable aquic conditions: between 60 and 100 cm. Redox concentrations can occur to the surface, but those within the mollic epipedon are relic features due to lowering of the water table by stream incision.

Particle-size control section - Clay content: Averages 8 to 18 percent.
Rock fragments: Averages 15 to 35 percent, mainly gravel. Lithology of fragments is mixed.

A1 horizon
Value: 4 or 5 dry, 2 or 3 moist.
Chroma: 2 or 3 moist.
Organic matter content: 1 to 3 percent.

A2 horizon and A3 horizon (when present)
Value: 4 or 5 dry, 2 or 3 moist.
Chroma: 2 or 3 moist.
Organic matter content: 1 or 2 percent.

AC and C horizons
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 3 or 4 moist.
Redoximorphic features: Redox concentrations are present as common to many distinct or prominent masses of iron accumulation; redox depletions may also be present as zones of iron depletion.
Other features: Some pedons have buried A horizons between the AC and C horizons.

2C horizon
Texture: Stratified extremely gravelly loamy coarse sand to very gravelly loamy sand.
Clay content: 5 to 10 percent.

COMPETING SERIES: These are the Broadycreek and Pappascreek series.

Broadycreek soils have an udic soil moisture regime. Pappascreek soils have an ustic soil moisture regime.

GEOGRAPHIC SETTING: Cablab soils are on stream terraces in mountain landscapes. These soils formed in alluvium derived from mixed rocks. Slopes are 4 to 15 percent. Elevations range from 2,045 to 2,685 meters. The climate is semiarid with cold, moist winters and cool, dry summers. The mean annual precipitation is 300 to 500 mm, mean annual temperature is 6 to 8 degrees C, and the frost-free period is 60 to 90 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cropper and Tierney soils. Cropper soils are loamy-skeletal, shallow to lithic contacts, and have mollic epipedons and argillic horizons. Tierney soils are loamy-skeletal, very deep, and have thick mollic epipedons. In addition, both of these soils are well drained and have frigid temperature regimes.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained; low surface runoff; moderately rapid permeability in the upper part over rapid permeability in the lower part, high saturated hydraulic conductivity. Endosaturation is present with an apparent seasonal high water table between 60 and 100 cm (moderately deep free water occurrence class) during May and June. Cumulative annual duration class is Transitory. These soils are susceptible to occasional flooding for very brief periods between January and September.

USE AND VEGETATION: Cablab soils are used for forestland and wildlife habitat. The present vegetation is mainly a forest canopy of quaking aspen with an understory of basin big sagebrush, rabbitbrush, bluebunch wheatgrass, birch, and willows.

DISTRIBUTION AND EXTENT: Central Nevada. These soils are not extensive. MLRA 28B.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California.

SERIES ESTABLISHED: Idaho, 2017.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the soil surface to 41 cm (A1, A2, and A3 horizons).
Endosaturation feature - The condition of ground water with an upper boundary between 60 and 100 cm at certain times during normal years (parts of the AC, Ab, and C horizons).
Particle-size control section - The zone from 25 to 100 cm (A3, C1, 2Ab, 2C2 horizons)

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National Cooperative Soil Survey
U.S.A.