LOCATION BADGERFLAT CAEstablished Series
TAXONOMIC CLASS: Ashy-skeletal, mixed, frigid Typic Vitrixerands
TYPICAL PEDON: Badgerflat very gravelly ashy sandy loam on a south facing (170 degrees) slope of 6 percent, under a cover of lodgepole pine, Jeffrey pine, white fir, lupine, squirreltail, and mountain monardella at an elevation of 6361 feet, (1939 m). When described on 9/18/2007, the soil was dry throughout. (Colors are for dry soil unless otherwise noted).
Oi--0 to 1 inches (0 to 2 cm); slightly decomposed needles, grass, and bark litter; abrupt wavy boundary.
A1--1 to 4 inches (2 to 9 cm); grayish brown (10YR 5/2) very gravelly ashy sandy loam, very dark grayish brown (10YR 3/2) moist; 3 percent clay; weak thick platy structure parting to weak fine granular structure parting to single grain; soft, very friable, nonsticky, nonplastic; many very fine and common fine roots; many very fine and fine interstitial and irregular pores; 22 percent subangular fine gravel and 22 percent subangular medium and coarse gravel; slightly acid, pH 6.3 by Hellige-Truog; NaF pH 9.2; abrupt wavy boundary.
A2--4 to 7 inches (9 to 18 cm); grayish brown (10YR 5/2) gravelly ashy sandy loam, very dark grayish brown (10YR 3/2) moist; 3 percent clay; moderate very fine to coarse subangular blocky structure parting to single grain; soft, very friable, nonsticky, nonplastic; common very fine and few fine roots; many very fine and fine irregular and few very fine vesicular pores; 20 percent subangular fine gravel, 10 percent subangular medium and coarse gravel, and 2 percent subangular stones; slightly acid, pH 6.5 by Hellige-Truog; NaF pH 10.4; abrupt wavy boundary. (Combined thickness of the A horizon is 4 to 7 inches (11 to 18 cm) thick)
2Bwb1--7 to 11 inches (18 to 29 cm); yellowish brown (10YR 5/4) extremely stony medial loamy sand, dark yellowish brown (10YR 3/4) moist; 4 percent clay; weak very fine and fine granular structure and moderate fine and medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; many very fine to medium, and common coarse and very coarse roots; many very fine and fine irregular pores; 17 percent subangular fine gravel, 16 percent subangular medium and coarse gravel, 8 percent subangular cobbles, and 20 percent subangular stones; slightly acid, pH 6.5 by Hellige-Truog; NaF pH 11.3; clear smooth boundary.
2Bwb2--11 to 23 inches (29 to 58 cm); light yellowish brown (10YR 6/4) extremely stony medial loamy sand, dark yellowish brown (10YR 3/4) moist; 4 percent clay; weak very fine to medium subangular blocky structure parting to single grain; soft, very friable, nonsticky, nonplastic; many very fine to medium, and common coarse and very coarse roots; many very fine irregular and interstitial, and common very fine vesicular pores; 10 percent subangular fine gravel, 15 percent subangular medium and coarse gravel, 15 percent subangular cobbles, 25 percent subangular stones, and 10 percent subangular boulders; neutral, pH 6.7 by Hellige-Truog; NaF pH 11.5; gradual wavy boundary. (Combined thickness of the 2Bwb horizon is 6 to 30 inches (14 to 76 cm) thick)
2BCb--23 to 33 inches (58 to 84 cm); pale brown (10YR 6/3) extremely stony ashy loamy sand, brown (10YR 4/3) moist; 3 percent clay; massive and weak very fine and fine subangular blocky structure parting to single grain; soft, very friable, nonsticky, nonplastic; many very fine and fine, and few medium roots; many very fine and fine interstitial and common very fine vesicular pores; 15 percent subangular fine gravel, 15 percent subangular medium and coarse gravel, 10 percent subangular cobbles, 25 percent subangular stones, and 10 percent subangular boulders; neutral, pH 7.0 by Hellige-Truog; NaF pH 10.3; abrupt wavy boundary. (9 to 16 inches (23 to 41 cm) thick)
2Cd--33 inches (84 cm); light brownish gray (10YR 6/2) extremely gravelly ashy loamy coarse sand, dark brown (7.5YR 3/2) moist; 3 percent clay; massive; extremely hard, slightly rigid, nonsticky, nonplastic; few fine and medium roots; common very fine vesicular and irregular pores; 25 percent subangular fine gravel, 25 percent subangular medium and coarse gravel, and 10 percent subangular cobbles; neutral, pH 7.0 by Hellige-Truog; NaF pH 10.0
TYPE LOCATION: Shasta County, California, about 1.3 miles west northwest from the western edge of Soap Lake, approximately 1500 feet west and 1000 feet north of the southwest corner of sec 10, T. 31 N, R. 5 E, 40 degrees, 33 minutes, 31 seconds north latitude and 121 degrees, 24 minutes, 19 seconds west longitude, NAD83; USGS Quad: West Prospect Peak, California.
RANGE IN CHARACTERISTICS:
Depth to restrictive feature: Densic contact 20 to 40 inches (50 to 102 cm).
Mean annual soil temperature: 44 to 47 degrees F (7 to 8 degrees C).
Soil moisture control section is dry: July to October (about 90 days).
Particle-size control section (thickest part): 3 to 4 percent clay, and 60 to 75 percent rock fragments.
Surface fragments: 15 to 65 percent gravel, 2 to 10 percent cobbles, 3 to 10 percent stones, and 0 to 10 percent boulders.
A horizon:
Color dry: 10YR 5/2, 5/3, 6/2, 6/3
Color moist: 10YR 3/1, 3/2, 3/3
Texture: gravelly ashy sandy loam, very gravelly ashy sandy loam, gravelly ashy loamy coarse sand, gravelly ashy loamy sand, very gravelly ashy coarse sandy loam
Clay content: 1 to 5 percent
Rock fragments: 15 to 25 percent fine gravel, 10 to 25 percent medium and coarse gravel, 25 to 50 percent total gravel, 0 to 5 percent stones, 25 to 50 percent total rock fragments
Organic matter: 4 to 6.5 percent
Base saturation by ammonium acetate: 43 to 68 percent
Acid oxalate extractable Al plus 1/2 Fe: 1.20 to 2.00
P retention: 75 to 90 percent
Glass content: 22 to 29 percent
NaF pH: 9.0 to 11.2
Soil reaction: slightly acid
2Bwb horizon:
Color dry: 10YR 5/4, 6/4
Color moist: 10YR 3/4
Texture: very stony medial loamy sand, extremely stony medial loamy sand, very gravelly medial sandy loam, extremely gravelly medial sandy loam, very gravelly medial loamy coarse sand, very cobbly medial loamy coarse sand
Clay content: 1 to 4 percent
Rock fragments: 10 to 20 percent fine gravel, 10 to 20 percent medium and coarse gravel, 20 to 35 percent total gravel, 5 to 15 percent cobbles, 15 to 30 percent stones, 0 to 10 percent boulders, 35 to 80 percent total rock fragments
Organic matter: 3 to 5.5 percent
Acid oxalate extractable Al plus 1/2 Fe: 2.25 to 3.75
P retention: 85 to 100 percent
Glass content: 4 to 14 percent
NaF pH: 11.0 to 11.5
Soil reaction: slightly acid or neutral
2BCb horizon:
Color dry: 10YR 6/2, 6/3
Color moist: 10YR 4/3, 4/4
Texture: very stony ashy loamy sand, extremely stony ashy loamy sand, very bouldery ashy loamy sand, extremely bouldery ashy loamy sand, very cobbly ashy loamy coarse sand, very gravelly ashy sandy loam
Clay content: 1 to 3 percent
Rock fragments: 10 to 20 percent fine gravel, 10 to 20 percent medium and coarse gravel, 20 to 35 percent total gravel, 5 to 15 percent cobbles, 20 to 30 percent stones, 5 to 15 percent boulders, 50 to 80 percent total rock fragments
Organic matter: 0.5 to 4 percent
Acid oxalate extractable Al plus 1/2 Fe: 1.25 to 3.75
P retention: 50 to 90 percent
Glass content: 5 to 14 percent
NaF pH: 10.0 to 11.2
Soil reaction: neutral
2Cd horizon:
Color dry: 10YR 5/3, 6/2
Color moist: 7.5YR 3/2, 10YR 3/2
Texture: very gravelly ashy loamy coarse sand, extremely gravelly ashy loamy coarse sand
Clay content: 0 to 3 percent
Rock fragments: 20 to 30 percent fine gravel, 20 to 30 percent medium and coarse gravel, 40 to 55 percent total gravel, 5 to 15 percent cobbles, 45 to 70 percent total rock fragments
Organic matter: 0 to 0.7 percent
Acid oxalate extractable Al plus 1/2 Fe: 1.25 to 1.60
P retention: 45 to 60 percent
NaF pH: 10.0 to 10.8
Rupture resistance: very hard or extremely hard
Soil reaction: neutral
COMPETING SERIES: These are the Bearrubble and Talved soils. The Bearrubble soils are very deep and formed in tephra over residuum on shield volcanoes. The Talved soils are very deep and formed in tephra over colluvium on glacial-valley backslopes.
GEOGRAPHIC SETTING: Badgerflat soils are on ground moraines and lava plateau backslopes in the Southern Cascade mountains. Slopes are 2 to 60 percent. These soils formed in tephra over till from volcanic rock. Elevation is 6200 to 7200 feet (1890 to 2195 m). The mean annual precipitation is 35 to 61 inches (889 to 1549 mm). The mean annual temperature is 41 to 44 degrees F (4.75 to 6.4 degrees C). Frost free season is 60 to 85 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Badgerwash and Cenplat soils. The Badgerwash soils are moderately deep to a duripan, and are on outwash plains. The Cenplat soils are moderately deep to bedrock, and are on glacially scoured lava plateaus.
DRAINAGE AND PERMEABILITY: Well drained; saturated hydraulic conductivity is moderately rapid to rapid in the A, 2Bwb and 2BCb horizons, and slow to very slow in the 2Cd horizon.
USE AND VEGETATION: This soil is used for wildlife habitat, recreation, ecosystem management and watershed. Vegetation is lodgepole pine, Jeffrey pine, California red fir, white fir, ponderosa pine, bush chinquapin, mountain monardella and wooly mule ears'.
DISTRIBUTION AND EXTENT: The soils are inextensive and are mapped in MLRA: 22B Southern Cascade Mountains
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Shasta County California. Source of name from Badger Flat.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: 1 to 7 inches, (2 to 18 cm)
Andic soil properties: 4 to 33 inches, (9 to 84 cm)
Densic contact: 33 inches, (84 cm)
Particle-size control section for this pedon: 1 to 33 inches, (2 to 84 cm)
Soil moisture control section: 33 inches, (84 cm)
ADDITIONAL DATA:
Inferred classification and properties from lab pedon number 07N0128 NSSL, Lincoln, NE.