LOCATION SODHOUSE                NV

Established Series
Rev. MJZ-RLB-JVC
03/2016

SODHOUSE SERIES

The Sodhouse series consists of shallow to a duripan, well drained soils that formed in alluvium derived from mixed rocks with some influence from loess and volcanic ash. Sodhouse soils are on fan remnants and plateaus. Slopes are 0 to 15 percent. The mean annual precipitation is about 180 mm and the mean annual temperature is about 9 degrees C.

TAXONOMIC CLASS: Loamy, mixed, superactive, mesic, shallow Typic Haplodurids

TYPICAL PEDON: Sodhouse stony very fine sandy loam--rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is partially covered with 5 percent stones, 10 percent cobbles and 10 percent gravel.

A1--0 to 8 cm; light gray (10YR 7/2) stony very fine sandy loam, dark grayish brown (10YR 4/2) moist; moderate thin platy structure; slightly hard, very friable, slightly sticky and slightly plastic; few fine roots; many fine and common medium vesicular pores; 10 percent gravel, 5 percent cobbles, and 5 percent stones; moderately alkaline (pH 8.2); clear smooth boundary. (3 to 15 cm thick)

A2--8 to 15 cm; light gray (10YR 7/2) very fine sandy loam, brown (10YR 4/3) moist; moderate thin platy structure; slightly hard, very friable, nonsticky and nonplastic; common fine roots; many fine tubular pores; 5 percent gravel; moderately alkaline (pH 8.2); clear smooth boundary. (0 to 15 cm thick)

Bw1--15 to 28 cm; very pale brown (10YR 7/3) very fine sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; common very fine and fine roots; many fine tubular pores; 10 percent gravel; strongly alkaline (pH 8.6); clear smooth boundary. (8 to 18 cm thick)

Bw2--28 to 48 cm; pale brown (10YR 6/3) gravelly loam, dark yellowish brown (10YR 4/4) moist; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine roots; common fine tubular pores; 20 percent gravel, strongly alkaline (pH 8.8); abrupt wavy boundary. (0 to 28 cm thick)

2Bqkm--48 to 107 cm; very pale brown (10YR 8/2) duripan, very pale brown (10YR 7/3) moist; strong thick platy structure; extremely hard, very firm; indurated by secondary silica and carbonate; strongly effervescent; 60 percent gravel; moderately alkaline (pH 8.4); clear wavy boundary. (15 to 112 cm thick)

2Bk--107 to 152 cm; light yellowish brown (10YR 6/4) extremely gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; massive; slightly hard, friable, nonsticky and nonplastic; secondary carbonates segregated as common pendants on rock fragments; strongly effervescent; 60 percent gravel; strongly alkaline (pH 8.6).

TYPE LOCATION: Humboldt County, Nevada; about 3 miles south of Golconda; about 2,300 feet east and 1,850 feet south of the northwest corner of section 17, T. 35 N., R. 40 E.; USGS Pole Creek 7.5 minute topographic quadrangle; latitude 40 degrees 54 minutes 40 seconds N and longitude 117 degrees 30 minutes 5 seconds W; WGS84 Decimal Degrees 40.9111111 latitude, -117.5013889 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist for short periods in winter and spring, dry from June through November; typic aridic soil moisture regime.
Mean annual soil temperature: 8 to 12 degrees C.
Depth to indurated duripan: 36 to 50 cm.
Duripan thickness: 15 to 112 cm.
Depth to 2Bk or 2Bqk horizon: 64 to more than 150 cm.
Reaction: Moderately alkaline or strongly alkaline, usually increasing with depth.
Other features: Durinodes and secondary carbonate accumulations are common in subhorizons immediately above the duripan of some pedons.

Particle-size control section - Clay content: 8 to 15 percent.
Rock fragments: Averages 0 to 25 percent, mainly gravel.

A horizons
Hue: 10YR or 2.5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 2 or 3, dry or moist.
Other features: Normally noneffervescent, but some pedons are slightly effervescent due to calcium carbonate recharge from dust.

Bw horizons
Hue: 10YR or 2.5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4, dry or moist.
Texture: Very fine sandy loam, fine sandy loam, silt loam, loam, or gravelly loam.
Rock fragments: 5 to 35 percent, mainly gravel.
Consistence: Slightly hard or hard dry, very friable to firm moist.
Salinity (EC): 0 to 4 mmhos/cm.
Sodicity (SAR): 0 to 45.
Calcium carbonate equivalent: 0 to 15 percent.

Bqkm horizon
Hue: 10YR or 2.5Y.
Value: 6 through 8 dry, 4 through 7 moist.
Chroma: 2 through 4, dry or moist.
Structure: Platy or is massive.

Bk horizon or Bq horizon (when present)
Hue: 10YR or 2.5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4, dry or moist.
Texture: Extremely gravelly sandy loam, gravelly loam, gravelly sandy loam, very gravelly loamy sand, or very gravelly loamy coarse sand.
Consistence: Loose to very hard dry, loose to very firm moist
Salinity (EC): 0 to 8 mmhos/cm.
Sodicity (SAR): 0 to 45.
Calcium carbonate equivalent: 5 to 10 percent.

COMPETING SERIES: These are the Garhill, Tybo, and Univega series.

Garhill soils are 30 to 76 cm deep to lithic contacts. Tybo soils are calcareous throughout, lack cambic horizons that extend below 25 cm, and are intermittently moist during summer months. Univega soils have nongravelly Bw horizons and are intermittently moist during summer months.

GEOGRAPHIC SETTING: Sodhouse soils are on fan remnants and plateaus. They typically occur on summit positions. They formed in alluvium derived from mixed rocks with some influence from loess and volcanic ash. Slopes are 0 to 15 percent. Elevations range from 1,220 to 1,890 meters. The climate is arid with cool, moist winters and warm, dry summers. The mean annual precipitation is 150 to 200 mm, mean annual temperature is 8 to 10 degrees C, and the frost-free period is 100 to 130 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Knoss, Oxcorel, and Orovada soils. Knoss soils are clayey and have natric horizons. Oxcorel soils are fine, very deep, have natric horizons, and have horizons with durinodes. Orovada are coarse-loamy, very deep, and have horizons with durinodes.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; very high surface runoff; moderately high saturated hydraulic conductivity.

USE AND VEGETATION: Sodhouse soils are used for livestock grazing and wildlife habitat. The vegetation is mainly shadscale, bud sagebrush, and bottlebrush squirreltail.

DISTRIBUTION AND EXTENT: Northern and central Nevada. These soils are moderately extensive. MLRAs 24, 25, and 28B.

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

SERIES ESTABLISHED: Lander County (South Part), Nevada, 1985.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 18 cm (A1, A2 and part of the Bw1 horizons).
Cambic horizon - The zone from 15 to 48 cm (Bw1 and Bw2 horizons).
Indurated duripan - The zone from 48 to 107 cm (2Bqkm horizon).
Particle size control section - The zone from 25 to 48 cm (Bw2 and part of the Bw1 horizon).

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National Cooperative Soil Survey
U.S.A.