LOCATION CONELICKER OR
Tentative Series
IRD. AGG/KLM/MPR
02/2025
CONELICKER SERIES
Landscape--Eastern Cascade mountains
Landform--cinder cones
Slope--15 to 50 percent
Parent Material--volcanic ash and cinders
Mean annual precipitation--around 620 mm
Mean annual air temperature--around 6 degrees C
Depth class--very deep
Drainage class--somewhat excessively
Soil moisture regime--xeric
Soil temperature regime--frigid
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy, glassy, frigid Humic Vitrixerands
TYPICAL PEDON: Conelicker ashy sandy loam, forested, on a north-facing, 34 percent slope at an elevation of 1005 meters. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 7 centimeters; slightly decomposed plant material; abrupt smooth boundary
A1--7 to 16 centimeters; ashy sandy loam, very dark grayish brown (10YR 3/2), black (10YR 2/1) moist; moderate coarse granular structure; soft, very friable, nonsticky, nonplastic; many very fine, common medium roots and fine roots; many very fine irregular pores; 4 percent fine gravel sized cinders; neutral (pH 6.6); clear smooth boundary
A2--16 to 46 centimeters; ashy sandy loam, brown (10YR 4/3), very dark brown (10YR 2/2) moist; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; common very fine, fine, and medium roots; many very fine and fine irregular pores; 6 percent gravel sized cinders; neutral (pH 6.8); clear smooth boundary
Bw1--46 to 77 centimeters; ashy sandy loam, dark yellowish brown (10YR 4/4), dark yellowish brown (10YR 3/4) moist; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; common very fine, fine and medium roots and few coarse roots; common very fine and fine irregular pores; 12 percent gravel size cinders; neutral (pH 6.9); gradual smooth boundary
Bw2--77 to 124 centimeters; gravelly ashy sandy loam, brown (10YR 5/3), dark brown (10YR 3/3) moist; weak fine subangular blocky structure; moderately hard, friable, slightly sticky, nonplastic; common very fine, fine, and medium roots and few coarse roots; few medium vesicular and common fine irregular pores; 30 percent gravel sized cinders; neutral (pH 7.0); gradual smooth boundary
C--124 to 200 centimeters; very gravelly ashy loamy sand, brown (10YR 5/3), dark brown (10YR 3/3) moist; structureless single grain; loose, loose, nonsticky, nonplastic; few very fine roots; common medium vesicular pores; 45 percent gravel sized cinders, 2 percent gravel sized basalt, and 5 percent cobble sized cinders; neutral (pH 7.0)
TYPE LOCATION: Deschutes County, Oregon; Latitude 44.344355, Longitude -121.581091, datum WGS84 (coordinates determine with a GPS).
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--around 7 degrees C
Soil moisture--usually moist in winter and spring, dry in the moisture control section for 60 to 90 days in the 4 months following the summer solstice
Thickness of mollic epipedon--25 to 45 cm
Thickness of cambic horizon--40 to 80 cm
Reaction--6.6 to 7.3 (neutral)
Thickness of ash influenced layers--90 to 200 cm
Estimated properties of layers influenced by volcanic ash
*Ammonium oxalate extractable Al + Fe--0.4 to 1.0 percent
*1500 kPa water content (air dry)--less than 15 percent
*0.02 to 2.0 mm fraction--50 to 90 percent
*Volcanic glass in the 0.02 to 2.0 mm fraction--50 to 80 percent
*P retention--40 to 70 percent
Particle-size control section:
*Clay content, weighted average--2 to 10 percent
*Rock fragment content, weighted average--0 to 30 percent
A horizons
*Value--3 or 4 dry, 2 or 3 moist
*Chroma--2 or 3 dry, 1 or 2 moist
*Fine earth texture--ashy sandy loam, ashy loamy sand
*Clay--2 to 10 percent
*Sand--55 to 90 percent
*Organic matter--1 to 3 percent
*Gravel--0 to 10 percent
*Reaction--6.6 to 7.3 (neutral)
*Thickness--combined thickness of A horizons is 25 to 45 cm
Bw horizons
*Value--4 or 5 dry, 3 moist
*Chroma--3 or 4 dry, 3 or 4 moist
*Fine earth texture--ashy sandy loam, ashy loamy sand
*Clay--2 to 10 percent
*Sand--55 to 90 percent
*Organic matter--0.25 to 1 percent
*Gravel--10 to 30 percent
*Reaction--6.6 to 7.3 (neutral)
*Thickness--combined thickness of B horizons is 30 to 80 cm
C horizon
*Hue--10YR, 7.5YR, 5YR
*Value--3 to 7
*Chroma--3 to 6
*Fine earth texture--ashy loamy sand, ashy loamy coarse sand
*Clay--1 to 5 percent
*Sand--70 to 90 percent
*Organic matter--0.25 to 0.5 percent
*Total rock fragment content--35 to 85 percent
*Gravel--15 to 65 percent
*Cobble--0 to 45 percent
*Reaction--6.6 to 7.3 (neutral)
*Thickness--thickness of C horizon is 30 to 75 cm
COMPETING SERIES:
Cobey--averages less than 55 percent sand in the particle size control section (silt loam and loam texture classes)
Drypok--50 to 100 cm deep to a paralithic contact
Ermabell--dry for 90 to 110 days following the summer solstice; skeletal glacial outwash material below the particle size control section
Laidlaw--dry for 90 to 110 days following the summer solstice; 10 percent silica nodules in the particle size control section and 30 percent below
Lundgren--dry for 90 to 110 days following the summer solstice; skeletal glacial outwash material below the particle size control section
Pilotbutte-- no cinders in the particle size control section
Retep--50 to 100 cm deep to a paralithic contact
Suttle-saturation occurs from 0 to 60 cm from April to June (somewhat poorly drained); less than 50 percent base saturation in the epipedon
Trailcreek--50 to 100 cm deep to a paralithic contact
Wanoga--50 to 100 cm deep to a paralithic or lithic contact
GEOGRAPHIC SETTING:
Elevation--900 to 1400 meters
Slope--15 to 50 percent
Climate--cool, wet winters and warm, dry summers
Mean annual precipitation--350 to 890 mm
Mean annual air temperature--5 to 7 degrees C
Frost-free period--60 to 90 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Bluesters--occurs on similar landforms; is 50 to 100 cm deep to cinders
Lundgren--occurs on outwash plains
Wanoga--occurs on lava plains; is 50 to 100 cm deep to a paralithic or lithic contact
Fryrear--occurs on lava plains and flows; is 50 to 100 cm deep to a lithic contact; greater than 35 percent fragments in the particle size control section
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage--somewhat excessively
Saturated hydraulic conductivity (Ksat)--high to very high in all horizons
USE AND VEGETATION:
Use--timber production, wildlife habitat
Vegetation--ponderosa pine, incense cedar, antelope bitterbrush, greenleaf manzanita, Idaho fescue, Ross' sedge; where precipitation is above 510 mm Douglas-fir, grand fir, white fir, pinegrass, long-stolon sedge, snowbrush ceanothus, western brackenfern
DISTRIBUTION AND EXTENT:
East slopes of the Cascade Mountains in central Oregon; MLRA 6; minor extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Deschutes County, Deschutes National Forest, Oregon 2023
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
*Particle-size control section--7 to 107 cm
*Mollic epipedon--7 to 46 cm
*Cambic horizon--46 to 124 cm
*Andic soil properties--7 to 200 cm
National Cooperative Soil Survey
U.S.A.