LOCATION STROZI                  NV

Established Series
Rev. WRK/RLB/TM
12/2015

STROZI SERIES

The Strozi series consists of moderately deep over a duripan, well drained soils that formed in mixed alluvium. Strozi soils are on fan piedmont remnants. Slopes are 0 to 8 percent. The mean annual precipitation is about 8 inches and the mean annual temperature is about 62 degrees F.

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Argidic Argidurids

TYPICAL PEDON: Strozi gravelly fine sandy loam - rangeland. About 75 percent of the soil surface is covered with pebbles.

A1--0 to 2 inches; very pale brown (10YR 7/3) gravelly fine sandy loam, yellowish brown (10YR 5/4) moist; moderate very coarse platy structure; soft, very friable, nonsticky and nonplastic; common very fine roots; common very fine and fine vesicular pores; 20 percent pebbles; violently effervescent; moderately alkaline (pH 8.4); clear wavy boundary. (2 to 4 inches thick)

A2--2 to 5 inches; very pale brown (10YR 7/3) fine sandy loam, yellowish brown (10YR 5/4) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; common very fine roots; common fine interstitial pores; 10 percent pebbles; moderately alkaline (pH 8.4); clear wavy boundary. (2 to 5 inches thick)

Bt--5 to 13 inches; reddish yellow (7.5YR 7/6) clay loam, strong brown (7.5YR 5/6) moist; weak coarse prismatic structure parting to moderate medium subangular blocky; soft, friable, slightly sticky and slightly plastic; common very fine and fine roots; common fine interstitial pores; common distinct clay film bridging sand grains; 5 percent pebbles; moderately alkaline (pH 8.4; ); clear wavy boundary (4 to 8 inches thick)

Bqk--13 to 32 inches; very pale brown (10YR 7/4) very gravelly sandy loam, yellowish brown (10YR 5/4) moist; massive; slightly hard, very firm, nonsticky and nonplastic; common fine roots; common very fine and fine interstitial pores; 45 percent pebbles; 30 percent strongly cemented durinodes, violently effervescent; strongly alkaline (pH 8.6); abrupt wavy boundary. (10 to 24 inches thick)

Bqkm--32 to 33 inches; white (10YR 8/1) silica-and lime-cemented hardpan with a very thin discontinuous laminar cap, very pale brown (10YR 8/3) moist; massive; hard, very firm,; strongly cemented grading to weakly cemented in the lower part; violently effervescent; strongly alkaline (pH 8.6); clear wavy boundary. (1 to 6 inches thick)

Cqk--33 to 60 inches, light yellowish brown (10YR 6/4) very gravelly sandy loam, yellowish brown (10YR 5/4) moist; massive; slightly hard, very firm, nonsticky and nonplastic; few fine roots; common very fine and fine interstitial pores; 45 percent pebbles; weak continuous brittle matrix; violently effervescent; strongly alkaline (pH 8.6)

TYPE LOCATION: Nye County, Nevada; in Sacorbatus Flat about 12 miles northwest of the town of Beatty, about 2,000 feet east and 3,000 feet south of the projected northwest corner of Section 11, T. 10 S., R. 45 E.

RANGE IN CHARACTERISTICS:

Soil moisture - Usually dry; Typic Aridic moisture regime. The ratio of soil moisture utalized for evapotranspiration between summer and winter is 0.4:1, typical of the Mojave Desert.

Soil temperature - 63 to 67 degrees F.

Depth to lower boundary of Bt horizon - 10 to 16 inches.

Depth to duripan - 20 to 40 inches.


Control Section: - Clay Content: 27 to 35 percent.

Sand content: 30 to 45 percent.

Rock fragments: 5 to 15 percent.

Effervescent: Noneffervescent or slightly effervescent.


A horizon - Value: 6 or 7 dry, 4 or 5 moist.

Chroma - 3 or 4


Bt horizon - Value: 5 through 7 dry, 4 or 5 moist.

Chroma: 3 through 6.

Rock fragments: 5 to 15 percent.


Bqk horizon - Value: 5 through 8 dry or moist.

Chroma: 1 or 2 dry, 3 or 4 moist.

Rock fragments: 35 to 50 percent.

Reaction: Moderately alkaline or strongly alkaline.

COMPETING SERIES: This is the Joshua (CA) series. Joshua soils have argillic horizons with sandy loam or sandy clay loam fine earth textures (more than 45 percent sand) and 15 to 35 percent fine pebbles.

GEOGRAPHIC SETTING: Strozi soils are on fan piedmont remnants. These soils formed in alluvium primarily from igneous rocks. Slopes are 0 to 8 percent. Elevations are 2,300 to 4,500 feet. The climate is arid with cool winters and summers are hot and dry, typical of the Mojave Desert. The mean annual precipitation is between 6 and 9 inches; mean annual temperature is between 58 to 62 degrees F., and the frost-free season is about 210 days.

GEOGRAPHICALLY ASSOCIATED SOILS: This is the Canutio series. The Canutio has a loamy-skeletal control section.

DRAINAGE AND PERMEABILITY: Well drained. Slow runoff; moderately slow permeability.

USE AND VEGETATION: Rangeland and wildlife habitat. The present vegetation is mainly shadscale.

DISTRIBUTION AND EXTENT: Nye County, Nevada. These soils are not extensive. MLRA 30.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA

SERIES ESTABLISHED: Nye County, Nevada (Southwest Part). 1994. The name is coined.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon - The zone from 0 to 5 inches (A1 and A2 horizons).

Argillic horizon - The zone from about 5 to 13 inches (Bt horizon)

Duripan - The zone from about 32 to 33 inches (Bqkm horizon)

Argidic feature - duripan is not very strongly cemented or indurated.

Particle-size control section - The Zone from 5 to 13 inches (Bt horizon).

Responsibility for this series was transferred from Davis to Phoenix 12/2015. The last revision to the series was 1/2001. ET

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National Cooperative Soil Survey
U.S.A.