LOCATION PICKEDUP OR
Tentative Series
Rev. JFD/CEG
03/2025
PICKEDUP SERIES
Landscape--pumice-mantled plateaus
Landform--stabilized dunes and dune fields
Slope--2 to 12 percent
Parent material--eolian deposits derived from coarse pumiceous volcanic ash
Mean annual precipitation--about 650 mm
Mean annual air temperature--about 6 degrees C
Depth class--very deep
Drainage class--excessively drained
Soil moisture regime--xeric
Soil temperature regime--cryic
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy, glassy, nonacid Vitrandic Cryopsamments
TYPICAL PEDON: Pickedup ashy sand, on a forested dune with a slope of 4 percent and an elevation of 1,400 m. When described on June 4, 2007, the soil was dry to 4 cm and moist below that.
A1--0 to 4 cm; ashy sand, dark grayish brown (2.5Y 4/2) dry, 95 percent very dark grayish brown (10YR 3/2) and 5 percent brown (7.5YR 4/4) moist; single grain; loose, nonsticky and nonplastic; many very fine interstitial pores; slightly acid (pH 6.2); abrupt smooth boundary
A2--4 to 10 cm; ashy sand, dark grayish brown (2.5Y 4/2) dry, 95 percent very dark grayish brown (10YR 3/2) and 5 percent brown (7.5YR 4/4) moist; single grain; loose, nonsticky and nonplastic; many very fine and fine, and common medium roots throughout; many very interstitial pores; slightly acid (pH 6.4); abrupt smooth boundary
AC--10 to 40 cm; ashy sand, light yellowish brown (2.5Y 6/3) dry, 80 percent dark brown (10YR 3/3) and 20 percent brown (7.5YR 5/4) moist; massive; very friable, soft, nonsticky and nonplastic; few very fine, fine, medium, and coarse roots throughout; many very interstitial pores; 1 percent fine pumice paragravel; neutral (pH 6.8); clear smooth boundary
C1--40 to 140 cm; ashy sand, light yellowish brown (2.5Y 6/3) dry, 85 percent brown (10YR 4/3) and 15 percent very pale brown (10YR 7/4) moist; single grain; loose, nonsticky and nonplastic; few very fine, fine, medium, and coarse roots throughout; many very fine interstitial pores; 2 percent fine pumice paragravel; neutral (pH 7.0); clear smooth boundary
C2--140 to 200 cm; ashy sand, 85 percent light brownish gray (2.5Y 6/2) and 15 percent pale yellow (2.5Y 8/2) dry, 85 percent very dark grayish brown (2.5Y 3/2) and 15 percent very pale brown (10YR 7/4) moist; single grain; loose, nonsticky and nonplastic; many very interstitial pores throughout; 5 percent fine pumice paragravel; neutral (pH 7.2)
TYPE LOCATION: Klamath County, Oregon; about 6 about 5 miles east and 14 miles south of the town of Chemult, Oregon; about 213 m south and 15 m west of the northeast corner of Section 31, Township 29 S, Range 9 E; Willamette Meridian; Round Butte, Oregon U. S. Geological Survey quadrangle; latitude 43.0209999 degrees north, longitude 121.6877518 degrees west, datum WGS 84 (coordinates derived from GPS unit)
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--5 to 8 degrees C
Mean summer soil temperature--10 to 12 degrees C
Mean winter soil temperature--2 to 4 degrees C
Soil moisture control section--30 to 90 cm, dry for 60 to 90 consecutive days within the four-month period following the summer solstice
Base saturation by sum of cations--20 to 80 percent throughout
Particle-size control section
*Clay content--0 to 8 percent
*Pararock fragment content, weighted average--0 to 5 percent fine to medium pumice paragravel
*Rock fragment content, weighted average--0 to 5 percent cinders or andesite gravel
Estimated properties (all mineral horizons)
*Glass content--35 to 90 percent
*NaF pH--8.3 to 10.1
*Acid-oxalate extractable Al+1/2 Fe--0.1 to 0.5 percent
*P-retention--5 to 20
*15-bar water, dry--2 to 15 percent
Oe horizon (present in some pedons)
*Thickness--0 to 5 cm
A horizons
Hue--10YR or 2.5Y dry, 10YR or 7.5YR moist
Value--2 to 5 dry, 2 to 4 moist
Chroma--1 or 2 dry, 1 to 4 and moist
Fine-earth texture--ashy coarse sand, ashy sand, ashy loamy coarse sand, ashy loamy sand
Clay content--0 to 8 percent
Pararock fragment content--0 to 2 percent fine to medium pumice paragravel
Reaction--slightly acid or neutral (pH 6.1 to 7.3)
Organic matter content--1 to 10 percent
Thickness--8 to 35 cm
AC horizons
Hue--10YR or 2.5Y dry, 10YR or 7.5YR moist
Value--3 to 6 dry, 3 to 5 moist
Chroma--1 to 3 dry, 3 to 6 moist
Fine-earth texture--ashy coarse sand, ashy sand, ashy loamy coarse sand, ashy loamy sand
Clay content--0 to 8 percent
Pararock fragment content--0 to 5 percent fine to medium pumice paragravel
Reaction--neutral (pH 6.6 to 7.3)
Organic matter content--0.2 to 4 percent
Thickness--25 to 86 cm
BC or Bw horizon (present in some pedons)
Hue--10YR or 2.5Y dry, 10YR or 7.5YR moist
Value--4 to 8 dry, 3 to 7 moist
Chroma--2 to 4 dry and moist
Fine-earth texture--ashy coarse sand, ashy sand, ashy loamy coarse sand
Clay content--0 to 8 percent
Pararock fragment content--0 to 5 percent fine to medium pumice paragravel
Rock fragment content--0 to 5 percent cinders or andesite gravel
Reaction--neutral (pH 6.6 to 7.3)
Organic matter content--0.2 to 2 percent
Thickness--0 to 100 cm
C horizons
Hue--10YR or 2.5Y dry and moist
Value--6 to 8 dry, 3 to 7 moist
Chroma--2 to 4 dry and moist
Fine-earth texture--ashy coarse sand, ashy sand, ashy loamy coarse sand
Clay content--0 to 3 percent
Pararock fragment content--0 to 5 percent fine to medium pumice paragravel
Rock fragment content--0 to 5 percent cinders or andesite gravel
Reaction--neutral (pH 6.6 to 7.3)
Organic matter content--0 to 0.5 percent
COMPETING SERIES:
Cleetwood--on ash flows; formed in volcanic ash with pumice, cinders, and andesite fragments; mean annual precipitation 1015 to 2030 mm; dry 30 to 45 consecutive days following the summer solstice; elevation 1675 to 2440 m; has andic soil properties, with 40 to 70 percent phosphate retention, 0.4 to 1.5 acid oxalate extractable aluminum plus one-half iron, and 60 to 90 percent glass
GEOGRAPHIC SETTING:
Elevation--1280 to 1660 m
Climate--cool moist winters, cool dry summers
Mean annual air temperature--4 to 7 degrees C
Mean annual precipitation--460 to 890 mm
Frost-free period--15 to 40 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Lapine--on volcanic fields and ash-mantled lava plains, hills, and cinder cones; formed in coarse pumiceous volcanic ash and pumice parafragments; ashy-pumiceous particle-size class; andic soil properties
Steiger--on ash flows on volcanic fields and lava plains; formed in pumiceous volcanic ash; andic soil properties
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--excessively drained
Saturated hydraulic conductivity--high to very high
USE AND VEGETATION:
Use--timber, wildlife habitat, recreation
Vegetation--ponderosa pine, lodgepole pine, antelope bitterbrush, western needlegrass
DISTRIBUTION AND EXTENT: Cascade Mountains, Eastern Slope, Oregon; MLRA 6; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED: Klamath County, Oregon, 2007
Origin of the name--the name is coined
REMARKS:
Diagnostic horizons and features in this pedon
*Ochric epipedon
*Particle-size control section for this pedon--the zone from 25 to 100 cm
ADDITIONAL DATA:
NASIS Site ID--07-jfd-024
NASIS Pedon ID--S2007OR683002
Lab Sample Number: 09N0242, KSSL, Lincoln, NE
National Cooperative Soil Survey
U.S.A.