LOCATION SCHNEIDER               WA

Established Series
Rev. LDG/RJE/TLA
06/2011

SCHNEIDER SERIES

The Schneider series consists of deep, well drained soils formed in colluvium from basalt or andesite and volcanic ash. Schneider soils are on foothills and mountains. Slopes are 5 to 90 percent. The mean annual precipitation is about 65 inches and the mean annual temperature is about 49 degrees F.

TAXONOMIC CLASS: Loamy-skeletal, isotic, mesic Andic Humixerepts

TYPICAL PEDON: Schneider very gravelly loam - forested. (Colors are for moist soil unless otherwise noted. All textures are apparent field textures.)

Oi--0 to 0.5 inch; slightly decomposed needles, leaves and twigs with scattered angular pebbles and cobbles on surface.

Oa--0.5 to 1 inch; highly decomposed needles, leaves and some ash.

A--1 to 8 inches; dark reddish brown (5YR 3/3) extremely gravelly loam, brown (7.5YR 4/4) dry; moderate fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; NaF pH 10.5; many fine roots; 50 percent angular basalt gravel and 10 percent angular cobbles; moderately acid (pH 5.6); abrupt smooth boundary. (7 to 14 inches thick)

AB--8 to 24 inches; dark reddish brown (5YR 3/3) extremely gravelly loam, brown (7.5YR 4/4) dry; moderate fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; NaF pH 10.5; many coarse medium and fine roots; 50 percent angular gravel and 15 percent angular cobbles; moderately acid (pH 5.6); clear smooth boundary. (15 to 22 inches thick)

Bw--24 to 49 inches; brown (7.5YR 4/4) extremely gravelly silt loam, very pale brown (10YR 7/4) dry; moderate fine granular structure; soft, very friable, slightly sticky and slightly plastic; weakly smeary; NaF pH 10.5; common coarse medium and fine roots; 55 percent angular gravel; 15 percent angular cobbles; moderately acid (pH 5.8); abrupt wavy boundary. (17 to 30 inches thick)

R--49 inches; fractured basalt.

TYPE LOCATION: Kitsap County, Washington; 600 feet east and 1,900 feet south of the northwest corner of sec. 26, T. 24 N., R. 1 W.

RANGE IN CHARACTERISTICS: These soils are usually moist but are dry in the moisture control section for 45 to 60 consecutive days following summer solstice in 7 years out of 10. Depth to basalt bedrock is 40 to more than 60 inches. The 10- to 40-inch control section averages 35 to 80 percent rock fragments, dominantly angular gravel. Below 800 feet elevation, there are rounded glacial gravel in some pedons. The umbric epipedon is 20 to 30 inches thick.

The A horizon has moist hue of 5YR through 10YR, value of 2 or 3 moist, 3 through 5 dry, and chroma of 2 or 3 moist. This horizon is slightly acid to strongly acid.

The AB horizon has hue of 5YR through 10YR, value of 2 or 3 moist, 3 through 5 dry and chroma of 2 to 4 dry. It is loam or silt loam, and is very gravelly, very cobbly, extremely cobbly, or extremely gravelly. This horizon is slightly acid to strongly acid.

The Bw horizon has hue of 5YR through 10YR, value of 3 through 5 moist, 4 through 7 dry, and chroma of 2 through 4 moist and dry. It is loam or silt loam and is very gravelly, very cobbly, extremely cobbly, or extremely gravelly. This horizon is slightly acid or moderately acid.

COMPETING SERIES: This is the Putt and Siouxon series and the similar Delphi series. Putt soils are weakly cemented or compacted at a depth of 20 to 34 inches. Delphi soils have an average bulk density of less than 0.95 g/cc in the particle-size control section. Siouxon soils have an umbric epipedon 10 to 20 inches thick.

GEOGRAPHIC SETTING: Schneider soils are on foothills and mountains at elevations of 50 to 1,800 feet. Slopes are 5 to 90 percent. These soils formed in colluvium from basalt or andesite and volcanic ash, but are influenced by glacial drift below an elevation of 800 feet. The mean annual precipitation is 50 to 75 inches with relatively cool, dry summers and mild, wet winters; mean January temperature is about 38 degrees F, mean July temperature is about 63 degrees F. The frost-free season is 150 to 200 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bunker and Tebo soils and the competing Delphi soils. Tebo soils are fine-loamy. Bunker soils have a udic moisture regime.

DRAINAGE AND PERMEABILITY: Well drained; medium to rapid runoff; moderate permeability.

USE AND VEGETATION: Used for timber production. Douglas-fir, western hemlock and red alder are the main tree species with an understory of salal, western swordfern, vine maple, western brackenfern, red huckleberry, Oregongrape, cascara buckthorn, trailing blackberry, deer fern, rose, Indian plum, and salmonberry.

DISTRIBUTION AND EXTENT: Low mountains and foothills in southwestern Washington. The series is of moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon

SERIES ESTABLISHED: Kitsap County, Washington, 1977.

REMARKS: Diagnostic horizons and features recognized in this pedon are;
umbric epipedon from the mineral surface to 23 inches
cambic horizon from 23 to 48 inches.

All depths to diagnostic horizons or features are measured from the top of the first mineral horizon.

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National Cooperative Soil Survey
U.S.A.