LOCATION RUESH AZ
Established Series
Rev. AAD/DEW/PDC
12/2015
RUESH SERIES
The Ruesh series consists of very deep, somewhat excessively drained soils that formed in alluvium and colluvium from sedimentary formations high in gypsum. Ruesh soils are on fan terraces and have slopes of 3 to 20 percent. The mean annual precipitation is about 10 inches and the mean annual air temperature is about 64 degrees F.
TAXONOMIC CLASS: Coarse-loamy, gypsic, thermic Typic Calcigypsids
TYPICAL PEDON: Ruesh very gravelly fine sandy loam - rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 2 inches; reddish yellow (5YR 6/6) very gravelly fine sandy loam, yellowish red (5YR 5/6) moist; weak thin platy structure; slightly hard, friable, nonsticky and nonplastic; many very fine and common fine roots; many very fine vesicular and common fine tubular pores; 35 percent gravel and 5 percent cobble; violently effervescent, 18 percent calcium carbonate equivalent; moderately alkaline (pH 8.2); abrupt smooth boundary. (1 to 2 inches thick)
Bk--2 to 12 inches; reddish yellow (5YR 7/6) loam, yellowish red (5YR 5/6) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; many very fine and common fine roots; common fine and very fine tubular and interstitial pores; 10 percent gravel; violently effervescent with calcium carbonate segregated as common fine seams and few fine soft masses, 23 percent calcium carbonate equivalent; moderately alkaline (pH 8.2); abrupt wavy boundary. (4 to 18 inches thick)
2By1--12 to 22 inches; white and pink (N 8/ and 5YR 7/4) sandy loam, white and reddish yellow (N 8/ and 5YR 6/6) moist; massive with crystalline gypsum rock structure; slightly hard, friable, nonsticky and nonplastic; few very fine and fine roots; many fine and very fine irregular pores; 5 percent gravel; strongly effervescent, 11 percent calcium carbonate equivalent; 80 percent crystalline gypsum; slightly alkaline (pH 7.6); abrupt smooth boundary. (1 to 12 inches thick)
2By2--22 to 29 inches; pink (5YR 7/4) sandy loam, yellowish red (5YR 7/4) moist; massive; hard, firm, nonsticky and nonplastic; few very fine and fine roots; many fine and very fine irregular pores; 5 percent gravel; strongly effervescent, 6 percent calcium carbonate equivalent; 50 percent crystalline gypsum; slightly alkaline (pH 7.6); abrupt smooth boundary. (4 to 10 inches thick)
2By3--29 to 32 inches; white (N 8/ ) gypsum, white (N 8/ ) moist; crystalline gypsum rock structure; hard, firm, slightly sticky and slightly plastic; very few very fine roots; many very fine and fine irregular pores; 5 percent gravel; noneffervescent; 98 percent crystalline gypsum; slightly alkaline (pH 7.6); abrupt smooth boundary. (2 to 8 inches thick)
2By4--32 to 40 inches; pink (5YR 7/4) sandy loam, yellowish red (5YR 5/6) moist; massive; hard, firm, nonsticky and nonplastic; very few very fine roots; many fine and very fine irregular pores; 5 percent gravel; strongly effervescent, 5 percent calcium carbonate equivalent; 50 percent crystalline gypsum; slightly alkaline (pH 7.6); abrupt smooth boundary. (1 to 10 inches thick)
3By5--40 to 60 inches; white and pink (N 8/ and 5YR 7/4) very cobbly sandy loam, white and yellowish red (N 8/ and 5YR 5/6) moist; crystalline gypsum rock structure; very hard, very firm, nonsticky and nonplastic; no roots; many fine and very fine irregular pores; 20 percent gravel and 30 percent cobble; strongly effervescent, 7 percent calcium carbonate equivalent; 80 percent crystalline gypsum; slightly alkaline (pH 7.6).
TYPE LOCATION: Mohave County, Arizona; about 1/2 mile south of the Arizona-Utah state line and 3 miles east of the Hurricane Cliffs; 2000 feet west of the southeast corner of section 35, T.42 N., R.10 W.; Latitude 36 degrees 59 minutes 28 seconds N, Longitude 113 degrees 20 minutes 23 seconds W.
RANGE IN CHARACTERISTICS:
Soil Moisture: Intermittently moist in some part of the soil moisture control section during July - September and December -February. Driest during May and June. Typic aridic soil moisture regime.
Percent gypsum x centimeters thickness = greater than 3000
Percent gypsum plus calcium carbonate = greater than 40 percent
Rock Fragments: averages less than 15 percent in the control section
Soil Temperature: 59 to 72 degrees F.
Organic Matter: less than 1 percent in the surface horizon
Depth to Calcic horizon: 1 to 4 inches (10 to 25 percent calcium carbonate equivalent)
Depth to Gypsic horizon: 8 to 20 inches (10 to 98 percent gypsum)
A horizon
Value: 6 or 7 dry, 4 or 5 moist
Chroma: 4 through 6, dry or moist
Rock fragments: 5 to 50 percent gravel, 0 to 5 percent cobble
Bk horizon
Value: 4 through 7 dry, 4 or 5 moist
Chroma: 4 through 6, dry or moist
Texture: fine sandy loam, sandy loam, loam (5 to 18 percent clay)
By horizon
Hue: 5YR or N/
Value: 5 through 8 dry, 4 through 8 moist
Chroma: 0 through 6, dry or moist
Texture: fine sandy loam, sandy loam, loam (5 to 18 percent clay)
Calcium carbonate: 2 to 15 percent calcium carbonate equivalent
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Ruesh soils are on fan terraces and have slopes of 3 to 20 percent. These soils formed in alluvium and colluvium derived dominantly from sedimentary formations high in gypsum. Elevations range from 1600 to 4500 feet. Mean annual precipitation is 7 to 12 inches. The mean annual air temperature is 57 to 70 degrees F. The frost-free period is 180 to 240 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Akinville,
Mokaac and
Gypill soils. Akinville and Mokaac soils contain more than 35 percent rock fragments. Gypill soils have bedrock at depths less than 20 inches.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow to medium runoff; moderately rapid permeability.
USE AND VEGETATION: Ruesh soils are used for livestock grazing and wildlife habitat. The present vegetation is creosotebush, banana yucca, white bursage, Mormon-tea, cholla, gyp dropseed, big galleta, threeawn and fluffgrass.
DISTRIBUTION AND EXTENT: Northwestern Arizona. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA
SERIES ESTABLISHED: Mohave County, Arizona; Soil survey of Shivwits Area, Arizona, Part of Mohave County; 1994.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from 0 to 2 inches (A horizon)
Calcic horizon - The zone from 2 to 12 inches (Bk horizon)
Gypsic horizon - The zone from 12 to 60 inches (2By1, 2By2, 2By3, 2By4, 3By5 horizons)
Formerly classified as Typic Gypsiorthids.
ADDITIONAL DATA: NSSL Reference sample S89AZ - 015 - 4
Responsibility for this series was transferred from Davis to Phoenix 12/2015. The last revision to the series was 5/1997. ET
National Cooperative Soil Survey
U.S.A.