LOCATION BLAPPERT                NV

Established Series
Rev. JHD/JBF/WED
06/2016

BLAPPERT SERIES

The Blappert series consists of very shallow and shallow, well drained soils that formed in residuum and colluvium derived from granitic rock. Blappert soils are on mountain slopes and hills. Slopes are 15 to 50 percent. Mean annual precipitation is about 180 mm and mean annual temperature is about 12 degrees C.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic, shallow Typic Haplargids

TYPICAL PEDON: Blappert very gravelly sandy loam--rangeland. (Colors are for dry soil unless otherwise noted.)

A--0 to 8 cm; pale brown (10YR 6/3) very gravelly sandy loam, brown (10YR 5/3) moist; weak thick platy structure parting to moderate medium subangular blocky; soft, very friable, slightly sticky and slightly plastic; few very fine and fine roots; few fine tubular and common fine and very fine interstitial pores; 30 percent gravel, 10 percent cobbles; moderately alkaline (pH 8.2); clear smooth boundary. (3 to 13 cm thick)

Bt1--8 to 18 cm; light yellowish brown (10YR 6/4) very gravelly sandy clay loam, yellowish brown (10YR 5/4) moist; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; few medium and common very fine and fine roots; common fine tubular and few fine interstitial pores; common faint clay films on peds and in pores; 35 percent gravel, 5 percent cobbles; slightly effervescent; moderately alkaline (pH 8.4); clear wavy boundary. (10 to 20 cm thick)

Bt2--18 to 30 cm; light yellowish brown (10YR 6/4) very gravelly coarse sandy loam, yellowish brown (10YR 5/4) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; few medium and fine and very fine roots; common fine tubular and few fine interstitial pores; few faint clay films on peds and in pores; 35 percent gravel; 5 percent cobbles; slightly effervescent; moderately alkaline (pH 8.4); clear irregular boundary. (0 to 23 cm thick)

Cr--30 cm; decomposed and highly fractured granitic bedrock.

TYPE LOCATION: Esmeralda County, Nevada; about 1.5 miles northwest of Black Mountain; approximately 450 feet east and 500 feet south of the northwest corner of Section 18, T. 7 S., R. 41 E.; USGS Gold Point SW 7.5 minute topographic quadrangle; latitude 37 degrees 20 minutes 4 seconds N and longitude 117 degrees 28 minutes 59 seconds W; WGS84 Decimal Degrees 37.3350000 latitude, -117.4830556 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist in some part for short periods during winter and spring months, and for 10 to 20 days cumulative between July and October due to convection storms; typic aridic soil moisture regime.
Mean annual soil temperature: 12 to 15.0 degrees C.
Depth to paralithic contact: 15 to 36 cm.
Carbonates: Noneffervescent or slightly effervescent.

Particle-size control section - Clay content: 18 to 27 percent.
Rock fragments: 35 to 55 percent, more than 50 percent of the gravel sized fragments are 2 to 5 mm.
Sand fraction: Dominated by coarse and very coarse sand.

A horizon
Value: 5 or 6 dry, 3 through 5 moist.
Chroma: 2 or 3.
Reaction: Moderately alkaline or strongly alkaline.

Bt horizon
Value: 5 or 6 dry, 3 through 5 moist.
Chroma: 3 or 4.
Texture: Sandy clay loam or coarse sandy loam.
Rock fragments: 35 to 60 percent.
Consistence: Soft or slightly hard dry, very friable or friable, slightly sticky or sticky and slightly plastic or plastic.
Reaction: Slightly alkaline or moderately alkaline.

COMPETING SERIES: These are the Cruzspring, Mulespring, Rodad and Vindicator series.

Cruzspring have 12 to 18 percent clay particle-size control section. Mulespring soils are 36 to 50 cm deep. Rodad soils average 27 to 35 percent clay particle-size control section. Vindicator soils have less than 50 percent sand in the particle-size control section.

GEOGRAPHIC SETTING: Blappert soils are on mountain slopes. These soils formed in residuum and colluvium derived from granite. Slopes are 15 to 50 percent. Elevation is 1,465 to 2,286 meters. The mean average temperature is 11 to 14 degrees C, the mean annual precipitation is 150 to 200 mm, and the frost-free season is 120 to 160 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alcan and Pumel soils. Alcan soils are xeric. Pumel soils lack an argillic horizon.

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

USE AND VEGETATION: Livestock grazing and wildlife habitat. The native vegetation is shadscale, spiny menodora, galleta, rabbitbrush, bottlebrush squirreltail, pigmy cedar and Indian ricegrass.

DISTRIBUTION AND EXTENT: West-central Nevada. These soils are not extensive. MLRA 29.

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

SERIES ESTABLISHED: Esmeralda County Area, Nevada, 1984.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 8 cm (A horizon).
Argillic horizon - The zone from 8 to 30 cm (Bt1 and Bt2 horizons).
Paralithic contact - The contact at 30 cm (Cr layer).
Particle-size control section - The zone from the soil surface to 30 cm (A, Bt1 and Bt2 horizons).

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National Cooperative Soil Survey
U.S.A.