LOCATION SHAMIZO                 AZ

Inactive Series
Rev. BAL/PDC/WWJ
08/2012

SHAMIZO SERIES

The Shamizo series consists of very deep, excessively drained soils that formed in mixed alluvium. These soils are on floodplains and have slopes of 0 to 1 percent. The mean annual precipitation is about 18 inches and the mean annual air temperature is about 58 degrees F.

TAXONOMIC CLASS: Sandy-skeletal, mixed, thermic Aridic Ustorthents

TYPICAL PEDON: Shamizo extremely stony sand - wildlife habitat. (Colors are for dry soil unless otherwise noted.)

C1--0 to 5 inches; brown (7.5YR 5/4) extremely stony sand, dark brown (7.5YR 3/4) moist; single grain; loose, nonsticky and nonplastic; few coarse roots; many fine through coarse irregular pores; 50 percent stones, 20 percent cobble, 15 percent gravel; noneffervescent; neutral (pH 7.2); gradual wavy boundary. (0 to 10 inches thick)

C2--5 to 13 inches; light brown (7.5YR 6/4) extremely cobbly fine sand, dark brown (7.5YR 3/4) moist; single grain; loose, nonsticky and nonplastic; few coarse roots; many fine through coarse irregular pores; 5 percent stones, 30 percent cobble, 25 percent gravel; noneffervescent; neutral (pH 7.2); gradual wavy boundary. (3 to 12 inches thick)

C3--13 to 35 inches; light brown (7.5YR 6/4) extremely cobbly fine sand, dark brown (7.5YR 3/4) moist; single grain; loose, nonsticky and nonplastic; few coarse roots; many very fine through coarse irregular pores; 5 percent stones, 30 percent cobble, 25 percent gravel; noneffervescent; neutral (pH 7.2); gradual wavy boundary. (2 to 25 inches thick)

C4--35 to 60 inches; brown (7.5YR 5/4) extremely stony coarse sand, brown (7.5YR 4/4) moist; single grain; loose, nonsticky and nonplastic; few coarse roots; many fine through coarse irregular pores; 30 percent stones, 15 percent cobble, 40 percent gravel; noneffervescent; neutral (pH 7.2).

TYPE LOCATION: Coconino County, Arizona; located about 1,340 feet south and 260 feet east of the NW corner of Section 19; T. 17 N., R. 6 E.; 34 degrees, 50 minutes, 37.9 seconds north latitude and 111 degrees, 46 minutes, 39.4 seconds west longitude.

RANGE IN CHARACTERISTICS:

Soil moisture: Intermittently moist in some part of the soil moisture control section during July-August and December-January. Driest during May and June. Aridic ustic soil moisture regime.

Soil Temperature: 59 to 62 degrees

Clay content: averages 1 to 3 percent in the particle size control section

Rock fragments: averages 60 to 90 percent, mostly stones and cobble

Reaction: neutral or slightly alkaline

Calcium carbonate equivalent: 0 to 2 percent

Organic matter content: 0.1 to 0.5 percent

C horizons
Hue: 7.5YR, 5YR
Value: 5 or 6 dry, 3 or 4 moist
Chroma: 4 through 6, dry or moist
Texture: fine sand, sand, coarse sand

Some pedons may have lenses of finer material

COMPETING SERIES: This is the Otroizo (AZ) series. Otroizo soils have 45 to 60 percent coarse fragments in the particle-size control section, are strongly acid or slightly acid, and are not subject to flooding.

GEOGRAPHIC SETTING: Shamizo soils are on floodplains at elevations of 3,700 to 4,400 feet. Slopes range from 0 to 1 percent. These soils formed in mixed alluvium. The mean annual precipitation is 16 to 20 inches. The mean annual air temperature is 57 to 60 degrees F. The frost-free period is 180 to 220 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Vortex and Turist soils. Vortex soils are very deep and are coarse-loamy. Turist soils are very shallow and shallow.

DRAINAGE AND PERMEABILITY: Excessively drained; very slow runoff; very rapid permeability. Shamizo soils are subject to flooding.

USE AND VEGETATION: Used for wildlife habitat. Vegetation includes sycamore, cottonwood, and Arizona ash.

DISTRIBUTION AND EXTENT: Central Arizona. Shamizo soils are of small extent. This soil occurs in LRR-D, MLRA 38.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona

SERIES ESTABLISHED: Yavapai County, Arizona; Soil survey of Black Hills-Sedona Area, Arizona, Parts of Coconino and Yavapai Counties; 1996.

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

Entisol feature - The absence of diagnostic subsurface horizons.

Classified according to Soil Taxonomy Second Edition, 1999; Keys to Soil Taxonomy Eleventh Edition, 2010

When the competing series section was updated in September 2001, questions were raised about the description and/or the classification of this series. It was suggested that this soil should classify in the great group of Ustifluvents. A field study of the type location is recommended to resolve the questions.

Inactivated at the correlation of Black Hills-Sedona, AZ, August 2012, CEM

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National Cooperative Soil Survey
U.S.A.