LOCATION ROUETTE NV

Established Series
Rev. GWM-TM-JVC-JBF
12/2019

ROUETTE SERIES

The Rouette series consists of shallow to a duripan, well drained soils that formed in alluvium derived from mixed rocks. Rouette soils are on fan remnants. Slopes are 0 to 15 percent. The mean annual precipitation is about 230 mm and the mean annual temperature is about 9 degrees C.

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

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

A--0 to 15 cm; very pale brown (10YR 7/3) loam, brown (10YR 5/3) moist; moderate medium platy structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine, few medium roots; many very fine and fine vesicular pores; 5 percent gravel; violently effervescent; strongly alkaline (pH 8.6); clear wavy boundary. (5 to 15 cm thick)

Bw--15 to 30 cm; pale brown (10YR 6/3) gravelly loam, yellowish brown (10YR 5/4) moist, weak medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine, fine, medium and coarse roots; common very fine and fine tubular pores; 15 percent gravel; violently effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (15 to 25 cm thick)

Bqk--30 to 43 cm; very pale brown (10YR 7/3) gravelly loam, light yellowish brown (10YR 6/4) moist; weak coarse subangular blocky structure; slightly hard; friable, slightly sticky and slightly plastic; common very fine and fine roots; common very fine and fine tubular pores; 15 percent gravel; many distinct secondary calcium carbonate and silica concretions on the bottoms of rock fragments; 15 to 20 percent 1.3 to 2.5 cm diameter hard brittle durinodes; violently effervescent; strongly alkaline (pH 8.6); abrupt wavy boundary. (0 to 18 cm thick)

Bqkm--43 to 58 cm; very pale brown (10YR 8/2) cemented material, very pale brown (10YR 7/3) moist; massive; extremely hard, slightly rigid and brittle; duripan strongly cemented by secondary silica; few very fine and fine roots matted at the upper boundary and in cracks; few very fine interstitial and tubular pores; violently effervescent; strongly alkaline (pH 8.6); clear wavy boundary. (15 to 30 cm thick)

2Bkq1--58 to 74 cm; pale brown (10YR 6/3) extremely gravelly sand, light yellowish brown (10YR 6/4) moist; massive, slightly hard, friable, nonsticky and nonplastic; few very fine and fine roots; many fine interstitial pores; 75 percent gravel; many prominent secondary calcium carbonate and silica pendants on the bottoms of rock fragments; 20 percent brittle discontinuous lenses; violently effervescent; moderately alkaline (pH 8.4); abrupt smooth boundary. (0 to 25 cm thick)

2Bkq2--74 to 99 cm; very pale brown (10YR 7/3) very gravelly sand, light yellowish brown (10YR 6/4) moist; massive, hard, friable, nonsticky and nonplastic; few very fine and fine roots; many very fine and fine tubular pores; 50 percent gravel; 40 percent brittle lenses and broken pan fragments; many prominent secondary calcium carbonate and silica concretions on the bottom of rock fragments and common discontinuous concretions around rock fragments; violently effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (15 to 38 cm thick)

2Bkq3--99 to 152 cm; pale brown (10YR 6/3) extremely gravelly sand, brown (10YR 5/3) moist; massive, slightly hard, friable, nonsticky and nonplastic; common very fine and fine roots; many very fine interstitial pores; 70 percent gravel; many distinct secondary calcium carbonate and silica pendants on the bottom of rock fragments; 20 percent strongly cemented lenses; violently effervescent; strongly alkaline (pH 8.6).

TYPE LOCATION: White Pine County, Nevada; between Spring Valley and the Schell Creek Range; about 200 feet south and 1,750 feet east of the northwest corner of section 26, T. 20 N., R. 66 E.; USGS Kalamazoo Creek 7.5 minute topographic quadrangle; latitude 39 degrees 34 minutes 36.7 seconds N and longitude 114 degrees 30 minutes 37.6 seconds W; WGS84 Decimal Degrees 39.5768611 latitude, -114.5104444 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Intermittently moist during winter and spring, usually dry summer through fall except for 10 to 20 day cumulative between mid-July and October due to convection storms; aridic soil moisture regime that borders on xeric.
Mean annual soil temperature: 8 to 11degrees C.
Depth to base of cambic horizon: 25 to 38 cm.
Depth to strongly cemented duripan: 25 to 50 cm.

Particle-size control section - Clay content: 10 to 18 percent.
Rock fragments: 5 to 25 percent.

A horizon
Value: 6 or 7 dry, 5 or 6 moist.
Chroma: 2 or 3, dry or moist.

Bw horizon
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 2 through 4, dry or moist.
Texture: Loam or gravelly loam.
Consistence: Soft or slightly hard, very friable to friable, nonsticky to slightly sticky and nonplastic to slightly plastic.

Bq or Bqk horizons (when present above the duripan)
Cementation: 10 to 25 percent brittle durinodes in a friable or brittle matrix.
Texture: Loam or gravelly loam.
Consistence: Slightly hard or hard dry; very friable or friable moist.

Bqkm horizon
Consistence: Very hard or extremely hard.
Rupture resistance: Moderately cemented or strongly cemented.

2Bkq horizons
Value: 6 or 7 dry; 5 or 6 moist.
Clay content: 0 to 5 percent.
Rock fragments: 45 to 75 percent.
Cementation: 5 to 45 percent very hard or extremely hard, very firm or slightly rigid brittle lenses and broken pan fragments.

COMPETING SERIES: These are the Rabbithills, Scalade, Shabliss, Trio, Truvar, and Unius series.

Rabbithills, Scalade and Shabliss soils are not intermittently moist for 10 to 20 days cumulative between July and October. Trio soils have lithic contacts at depths of 50 to 100 cm. Truvar soils have mean annual soil temperature of 12 to 15 degrees C. Unius soils have 18 to 25 percent clay in the particle-size control section.

GEOGRAPHIC SETTING: Rouette soils are on fan remnants. These soils formed in alluvium derived from mixed rocks. Slopes are 0 to 15 percent Elevations range from 1,710 to 2,135 meters. The climate is semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 200 to 250 mm, mean annual temperature is 7 to 11 degrees C, and the frost-free period is 100 to 120 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These soils are the Huilepass and Summermute soils. Huilepass and Summermute soils are very deep.

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

USE AND VEGETATION: Rouette soils are used for livestock grazing and wildlife habitat. The present vegetation is mainly Wyoming big sagebrush, Indian ricegrass, needleandthread, and galleta.

DISTRIBUTION AND EXTENT: Eastern Nevada. These soils are not extensive. MLRA 28A.

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

SERIES ESTABLISHED: White Pine County, Nevada, East Part, 2004.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 18 cm (A horizon and part of the Bw horizon).
Cambic horizon - The zone from 15 to 30 cm (Bw horizon).
Durinodes - The zone from 30 to 43 cm (Bqk horizon).
Identifiable secondary carbonates - The zone from 30 to 152 cm (Bqk, Bqkm, 2Bkq1, 2Bkq2, and 2Bkq3 horizons).
Strongly cemented duripan - The zone from 43 to 58 cm (Bqkm horizon).
Particle-size control section - The zone from 25 to 43 cm (Bqk horizon and lower part of the Bw horizon).

National Cooperative Soil Survey
U.S.A.