LOCATION WINEBURGER OR
Tentative Series
IRD. JRD/KLM
02/2025
WINEBURGER SERIES
Landscape--mountains
Landform--mountain slopes, benches
Slope--0 to 70 percent
Parent material--colluvium with thick mantle of ash over basalt, tuff, or andesite associated with Clarno formation
Mean annual precipitation--710 mm
Mean annual air temperature--5 degrees C
Depth class--deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--cryic
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy over loamy-skeletal, glassy over isotic Humic Xeric Vitricryands
TYPICAL PEDON: Wineburger ashy loamy sand--woodland, on a 5 percent slope at an elevation of 1870 m.
Oi--0 to 5 cm; slightly decomposed plant material; abrupt wavy boundary
A1--5 to 15 cm; dark brown (10YR 3/3) ashy loamy sand, brown (10YR 5/3) dry; 7 percent clay; moderate thick platy structure; very friable, soft, nonsticky, nonplastic; common fine and medium roots throughout; many fine vesicular pores; 7 percent gravels; moderately acid (pH 6.0); abrupt smooth boundary
A2--15 to 30 cm; dark brown (10YR 3/3) ashy loamy sand, brown (10YR 5/3) dry; 8 percent clay; weak medium subangular blocky structure; very friable, soft, nonsticky, nonplastic; many fine, medium, and coarse roots throughout; many fine irregular pores; 7 percent gravels; moderately acid (pH 6.0); clear wavy boundary
Bw1--30 to 58 cm; dark yellowish brown (10YR 3/4) ashy loamy sand, yellowish brown (10YR 5/4) dry; 7 percent clay; weak coarse subangular blocky structure; very friable, soft, nonsticky, nonplastic; common fine, medium and coarse roots throughout; many fine irregular pores; 10 percent gravels; slightly acid (pH 6.2); abrupt wavy boundary
2Bw2--58 to 71 cm; dark brown (7.5YR 3/3) very gravelly loam, brown (7.5YR 5/3) dry; 20 percent clay; moderate medium subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; common fine and medium roots throughout; common medium dendritic tubular pores; 35 percent gravels; moderately acid (pH 6.0); clear smooth boundary
2Bt1--71 to 94 cm; dark yellowish brown (10YR 3/4) very gravelly sandy clay loam, dark yellowish brown (10YR 4/4) dry; 25 percent clay; moderate coarse subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; common fine roots throughout; common medium irregular pores; 10 percent distinct clay films on ped faces; 35 percent gravels and 10 percent cobbles; slightly acid (pH 6.4); gradual wavy boundary
2Bt2--94 to 124 cm; dark yellowish brown (10YR 4/4) extremely gravelly sandy clay loam, dark yellowish brown (10YR 4/4) dry; 30 percent clay; weak coarse subangular blocky structure parting to moderate medium subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; few fine and medium roots throughout and common coarse roots throughout; common medium irregular pores; 10 percent distinct clay films on ped faces; 45 percent gravel, 10 percent cobbles and 10 percent stones; slightly acid (pH 6.4); clear wavy boundary
3R--124 cm; indurated basalt
TYPE LOCATION: Wheeler County, Oregon, about 1.75 km northwest of Mt Pisgah, off Ochoco National Forest road 2630; SW of the SE of section 6, T.13S., R.21E; latitude 44.4672500, longitude -120.2516110, WGS84 Datum (Coordinates determined with a GPS)
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--1 to 5 degrees C
Soil moisture--usually moist, but are dry for 45 to 60 days following the summer solstice
Mollic epipedon--15 to 50 cm thick
Depth to lithic contact--100 to 150 cm
Estimated properties of layers with andic soil properties
*Andic Soil Properties--upper boundary at mineral soil surface, 40 to 80 cm thick
*P Retention--40 to 70 percent
*Acid oxalate Al + 1/2Fe--0.4 to 2.0 percent
*Volcanic glass content in 0.2 to 2.0 mm fraction--30 to 50 percent
*Water content at 1500kPa (air dry)--10 to 12 percent
Particle Size Control Section (upper 100cm below mineral soil surface)
Upper part (ashy)--40 to 80 cm thick
*Clay content--5 to 15 percent
*Total rock fragments (weighted average)--5 to 35 percent
Lower part (loamy-skeletal)--20 to 60 cm thick
*Clay content--18 to 35 percent
*Total rock fragments (weighted average)--35 to 80 percent
A horizons
*Hue--10YR moist or dry
*Value--3 to 5 dry, 2 to 3 moist
*Chroma--3 or 4 moist or dry
*Fine earth texture--loamy sand, sandy loam, fine sandy loam
*Clay content--5 to 15 percent
*Sand content--55 to 85 percent
*Organic matter content--1 to 8 percent
*Total rock fragments--0 to 15 percent
*Gravel content--0 to 15 percent
*Cobble content--0 to 10 percent
*Reaction--pH 5.6 to 6.5, moderately to slightly acid
*Thickness--40 to 80 cm
Bw horizon
*Hue--10YR moist or dry
*Value--3 to 5 dry, 3 or 4 moist
*Chroma--3 or 4 moist or dry
*Fine earth texture--loamy sand, sandy loam, loam
*Clay content--5 to 25 percent
*Sand content--40 to 80 percent
*Organic matter content--0.5 to 1
*Total rock fragments--5 to 40 percent
*Gravel content--5 to 40 percent
*Cobble content--0 to 20 percent
*Stone content--0 to 5 percent
*Reaction-- pH 5.6 to 6.5, moderately to slightly acid
*Thickness--0 to 25 cm
2Bw2 horizon
*Hue--10YR or 7.5YR moist or dry
*Value--3 to 5 dry, 3 or 4 moist
*Chroma--3 or 4 moist or dry
*Fine earth texture--sandy loam, loam
*Clay content--10 to 25 percent
*Sand content--35 to 65 percent
*Organic matter content--0.5 to 1
*Total rock fragments--35 to 60 percent
*Gravel content--20 to 60 percent
*Cobble content--10 to 30 percent
*Stone content--0 to 5 percent
*Reaction-- pH 5.6 to 6.5, moderately to slightly acid
*Thickness--0 to 25 cm
2Bt horizons
*Hue--10YR or 7.5YR
*Value--4 to 5 dry, 3 or 4 moist
*Chroma--3 to 4 moist or dry
*Fine earth texture--loam, sandy clay loam, clay loam
*Clay content--15 to 35 percent
*Sand content--40 to 65
*Organic matter content--0.5 to 1 percent
*Total rock fragments--35 to 80 percent
*Gravel content--30 to 60 percent
*Cobble content--5 to 45 percent
*Stone or boulder content--0 to 40 percent
*Reaction-- pH 5.6 to 6.5, moderately to slightly acid
COMPETING SERIES:
Chochoco--lack organic horizon; 50 to 100 cm to lithic contact
Leonardo--greater than 150 cm to restrictive feature; mollic epipedon greater than 50 cm thick
Toroda--greater than 150 cm to restrictive feature; mollic epipedon greater than 50 cm thick
GEOGRAPHIC SETTING:
Elevation--1650 to 2150 m
Climate--cold, wet winters and cool, dry summers
Mean annual precipitation--500 to 910 mm
Mean annual air temperature--2 to 6 degrees C
Frost-free period--20 to 60 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Pisgasha--occur on mountain sideslopes; have greater than 100cm of andic soil properties; moist for less than 30 days following summer solstice
Hophman--occur on mountain slopes and benches; greater than 100 cm andic soil properties in surface; episaturation occurs within 125 cm of the soil surface
Chochoco--occur on mountain slopes and benches; 50 to 100 cm to lithic contact; lack organic horizon; supports rangeland vegetation
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage--well drained
Saturation during normal years--none
Flooding--none
Ponding--none
Saturated hydraulic conductivity (Ksat)--High in the upper ashy part, moderately high in the lower part
USE AND VEGETATION:
Use--timber production, wildlife habitat, recreation
Potential native vegetation--grand fir, Douglas fir, pinegrass, strawberry
Typical plant association--CWG113 grand fir/pinegrass; Plant Associations of the Blue and Ochoco Mountains; USDA Forest Service
DISTRIBUTION AND EXTENT: Central Oregon, Ochoco Mountains; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED: Ochoco National Forest, Wheeler County, Oregon, 2015
REMARKS:
Diagnostic horizon and features recognized in this pedon are
*Mollic epipedon--5 to 30 cm
*Andic soil properties--from the mineral soil surface to 58 cm
*Argillic horizon--58 to 124 cm
National Cooperative Soil Survey
U.S.A.