LOCATION BOTTLESPRING ORTentative Series
TAXONOMIC CLASS: Fine, smectitic, frigid Vitrandic Durixerolls
TYPICAL PEDON: Bottlespring stony ashy sandy loam - low sagebrush/Idaho fescue plant association, rangeland, on a 3 percent slope at 5130 feet elevation. (Colors are for dry soil unless otherwise noted)
A1--0 to 4 inches; brown (10YR 5/3) stony ashy sandy loam, dark brown (7.5YR 3/3) moist; moderate thick platy structure parting to moderate fine granular; hard, friable, slightly sticky, slightly plastic; many very fine, common fine and few medium roots; many fine and few medium tubular and common very fine irregular pores; 5 percent indurated volcanic rock gravel, 10 percent indurated volcanic rock cobbles, 15 percent indurated volcanic rock stones, 1 percent indurated volcanic rock boulders and 2 percent moderately cemented pumice paragravel; moderately acid (pH 6.0); clear wavy boundary. (2 to 9 inches thick)
A2--4 to 10 inches; brown (10YR 5/3) cobbly ashy sandy clay loam, very dark grayish brown (10YR 3/2) moist; weak medium subangular blocky structure parting to moderate fine granular; moderately hard, very friable, moderately sticky, moderately plastic; common very fine, and few fine and medium roots; few fine and medium tubular, common fine interstitial and many very fine irregular pores; 3 percent indurated volcanic rock gravel, 15 percent indurated volcanic rock cobbles, 5 percent indurated volcanic rock stones, 1 percent indurated volcanic rock boulders and 2 percent moderately cemented pumice paragravel; slightly acid (pH 6.4); clear wavy boundary. (4 to 11 inches thick)
2Bt1--10 to 13 inches; yellowish brown (10YR 5/4) ashy clay loam, brown (10YR 4/3) moist; weak medium prismatic structure parting to moderate medium subangular blocky; hard, friable, moderately sticky, moderately plastic; common very fine and few fine roots; common fine tubular, and many very fine and common fine irregular pores; 3 percent yellowish brown (10YR 5/4) clay films on all faces of peds and surfaces along pores, brown (10YR 4/3) moist; 2 percent indurated volcanic rock gravel, 2 percent indurated volcanic rock cobbles and 1 percent moderately cemented pumice paragravel; slightly acid (pH 6.4); abrupt wavy boundary. (2 to 5 inches thick)
2Bt2--13 to 21 inches; yellowish brown (10YR 5/4) silty clay, dark brown (10YR 3/3) moist; strong coarse columnar structure parting to strong coarse angular blocky; extremely hard, very firm, moderately sticky, very plastic; common very fine roots; common very fine tubular pores; 70 percent brown (7.5YR 4/4) clay films on all faces of peds and surfaces along pores, yellowish red (5YR 4/6) moist; and 100 percent pinkish gray (7.5YR 7/2) silt coats on tops of soil columns, brown (10YR 4/3) moist; 1 percent fine cylindrical very dark grayish brown (2.5Y 3/2) manganese masses infused into matrix adjacent to pores, black (2.5Y 2.5/1) moist; 5 percent indurated volcanic rock gravel; slightly acid (pH 6.4); abrupt smooth boundary. (8 to 22 inches thick)
2Bqm--21 to 54 inches; yellowish brown (10YR 5/4) cemented material, dark brown (7.5YR 3/4) moist; strong thin platy structure; rigid, very strongly cemented by silica, nonsticky, nonplastic; few very fine roots between peds; common very fine tubular pores; 15 percent yellowish brown (10YR 5/4) clay films on top faces of peds in upper 8 inches of horizon, dark brown (10YR 3/3) moist; 10 percent medium irregular very strongly cemented very dark grayish brown (2.5Y 3/2) iron-manganese nodules throughout, black (2.5Y 2.5/1) moist; 85 percent fine platy very strongly cemented pale yellow (2.5Y 7/3) and pale yellow (2.5Y 8/4) opal with sharp boundaries on faces of peds, light olive brown (2.5Y 5/4) and olive yellow (2.5Y 6/6) moist; 10 percent indurated volcanic rock gravel; slightly alkaline (pH 7.5).
TYPE LOCATION: Klamath County, Oregon; about 10 miles north and 33 miles east of Chiloquin; about 1200 feet east and 600 feet south of the northwest corner of section 8, T. 33 S., R. 13 E.; Riverbed Butte Spring, Oregon USGS quadrangle; 42 degrees, 43 minutes, 52.00 seconds north latitude and 121 degrees, 12 minutes, 26.00 seconds west longitude; UTM 646762 meters E, 4732292 meters N, zone 10 NAD27.
RANGE IN CHARACTERISTICS:
Soil temperature: frigid regime
Mean annual soil temperature - 38 to 41 degrees F
Mean summer soil temperature - 44 to 47 degrees F
Mean winter soil temperature - 32 to 35 degrees F
Soil moisture: xeric regime; moisture control section - 8 to 24 inches, dry in all parts for 60 to 90 consecutive days in August, September and October
Particle-size control section: upper 20 inches of argillic horizon
Clay content, average: 35 to 50 percent
Rock fragment content, average: 0 to 15 percent
Diagnostic horizons and features:
andic soil properties: from mineral soil surface, 8 to 13 inches thick
ammonium oxalate extractable Al plus 1/2 Fe: 0.4 to 0.8 percent
0.02 to 2.0 mm fraction: 30 to 50 percent of fine earth fraction
volcanic glass content: 30 to 70 percent
mollic epipedon: 8 to 20 inches thick
argillic horizon: 11 to 27 inches thick
duripan, depth from mineral soil surface: 20 to 40 inches
A1 horizon
Hue: 7.5YR or 10YR moist or dry
Value: 3 moist, 4 or 5 dry
Chroma: 2 or 3 moist, 3 dry
Clay content: 10 to 18 percent
Pumice paragravel content: 0 to 5 percent
Rock fragment content: 0 to 15 percent
Gravel content: 0 to 15 percent
Cobble content: 0 to 15 percent
Stone content: 10 to 15 percent
Boulder content: 0 to 5 percent
Reaction: moderately acid or slightly acid (pH 5.6 to 6.5)
A2 horizon
Hue: 5YR, 7.5YR or 10YR moist; 7.5YR or 10YR dry
Value: 3 moist, 4 or 5 dry
Chroma: 2 or 3 moist, 3 dry
Texture: cobbly ashy sandy clay loam, cobbly ashy sandy loam, cobbly ashy loam, stony ashy sandy clay loam, stony ashy sandy loam, stony ashy loam
Clay content: 18 to 27 percent
Pumice paragravel content: 0 to 5 percent
Rock fragment content: 15 to 35 percent
Gravel content: 0 to 15 percent
Cobble content: 0 to 25 percent
Stone content: 0 to 15 percent
Boulder content: 0 to 1 percent
Reaction: moderately acid or slightly acid (pH 5.6 to 6.5)
2Bt1 horizon
Hue: 7.5YR or 10YR dry or moist
Value: 3 or 4 moist, 4 to 6 dry
Chroma: 2 or 3 moist, 3 or 4 dry
Texture: ashy clay loam
Clay content: 27 to 40 percent
Pumice paragravel content: 0 to 5 percent
Rock fragment content: 0 to 15 percent
Gravel content: 0 to 10 percent
Cobble content: 0 to 15 percent
Stone content: 0 to 15 percent
Coarse silt and sand content: 30 to 55 percent of the fine earth fraction
Volcanic glass content: 5 to 30 percent
Ammonium oxalate extractable Al plus 1/2 Fe: 0.2 to 0.8 percent
Reaction: slightly acid (pH 6.1 to 6.5)
2Bt2 horizon
Hue: 5YR, 7.5YR or 10YR moist; 7.5YR or 10YR dry
Value: 3 to 5 moist, 5 or 6 dry
Chroma: 2 to 4 moist, 3 or 4 dry
Texture: clay loam, silty clay loam, silty clay
Clay content: 35 to 50 percent
Rock fragment content: 0 to 15 percent
Gravel content: 0 to 10 percent
Cobble content: 0 to 5 percent
Stone content: 0 to 1 percent
Reaction: slightly acid (pH 6.1 to 6.5)
2Bqm horizon
Rock fragment content: 0 to 15 percent
Gravel content: 0 to 10 percent
Cobble content: 0 to 5 percent
Stone content: 0 to 1 percent
Cementation: very strongly cemented or indurated
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Landscape - lava plateau and valleys
Landform - volcanic fields mantling lava flows
Elevation - 4220 to 5540 feet
Slope - 1 to 8 percent
Parent material - volcanic ash and pumice derived from dacite over residuum weathered from volcanic rock and/or tephra
Climate - cold moist winters and cool dry summers
Mean annual air temperature - 40 to 45 degrees F
Mean annual precipitation - 16 to 25 inches
Frost-free period - 50 to 70 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bigtop,
Maset, Shortnap and
Shukash soils.
Bigtop soils are poorly drained, have an albic horizon, and have an abrupt textural change at the top of the argillic horizon.
Maset soils have andic soil properties in the upper part of the particle-size control section, have 18 to 35 percent clay in lower part of the particle-size control section and are 20 to 40 inches deep to bedrock.
Shortnap soils are somewhat poorly drained, have andic soil properties in the upper part of the particle-size control section and have 10 to 18 percent clay in lower part of the particle-size control section.
Shukash soils have andic soil properties in the upper part of the particle-size control section, have 10 to 20 percent clay in lower part of the particle-size control section and are greater than 60 inches deep.
DRAINAGE AND PERMEABILITY:
Drainage - well drained
Permeability - very slow
USE AND VEGETATION: Bottlesrping soils are used for livestock grazing, wildlife habitat, watershed and recreation. Plant association is low sagebrush/Idaho fescue. Western juniper is supported in some areas.
DISTRIBUTION AND EXTENT: Klamath County, Oregon; MLRA 6. Series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Winema National Forest, Klamath County, Oregon, 2008
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - 0 to 10 inches (A1 and A2 horizons)
Andic soil properties - 0 to 10 inches (A1 and A2 horizons)
Argillic horizon - 10 to 21 inches (2Bt1 and 2Bt2 horizons)
Duripan - 21 to 54 inches; very strongly cemented (2Bqm horizon)
Particle-size control section: 10 to 21 inches (2Bt1 and 2Bt2 horizons)
ADDITIONAL DATA:
NASIS SITE ID - 02-JFD-01; NASIS PEDON ID - 02OR683001
NSSL analysis on the 0 to 4, 4 to 10 and 10 to 13 inch depth zones (A1, A2 and 2Bt1 horizons), sample number - S02OR-035-002, sampled as: Bottlesprings