LOCATION TATER                   OR

Tentative Series
Rev. DBM/JFD/TDT
02/2022

TATER SERIES

Landscape--Intermontane Basin
Landform--mountain valleys, outwash fans
Slope--1 to 4 percent
Parent material--alluvium and/or glaciofluvial deposits derived from volcanic rock or tephra
Mean annual precipitation--about 880 mm
Mean annual air temperature--about 6.2 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--frigid
Soil moisture subclass--typic

TAXONOMIC CLASS: Medial-skeletal, amorphic, frigid Humic Haploxerands

TYPICAL PEDON: Tater medial coarse sandy loam on a forested outwash fan with a 1 percent slope at 1280 m elevation

Oi--0 to 2 cm; slightly decomposed plant material; forest litter of needles, twigs, cones and herbaceous material; abrupt smooth boundary)

A1--2 to 9 cm; medial coarse sandy loam, very dark grayish brown (10YR 3/2) dry, very dark brown (10YR 2/2) moist; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many very fine, fine and medium and common coarse and very coarse roots; many very fine irregular pores; 5 percent indurated volcanic rock gravel; moderately acid (pH 6.0); abrupt smooth boundary

A2--9 to 41 cm; gravelly medial coarse sandy loam, dark grayish brown (10YR 4/2) dry, very dark brown (10YR 2/2) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; many very fine, fine and medium and common coarse and very coarse roots; common fine irregular pores; 20 percent indurated volcanic rock gravel, 5 percent indurated volcanic rock cobbles and 5 percent indurated volcanic rock stones; slightly acid (pH 6.2); diffuse wavy boundary

BA--41 to 70 cm; extremely cobbly medial sandy loam, brown (10YR 5/3) dry, dark brown (10YR 3/3) moist; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; many very fine, fine and medium and common coarse and very coarse roots; many fine irregular pores; 30 percent indurated volcanic rock gravel, 20 percent indurated volcanic rock cobbles and 10 percent indurated volcanic rock stones; slightly acid (pH 6.4); clear smooth boundary

2Bq--70 to 160 cm; extremely cobbly ashy coarse sand, light yellowish brown (10YR 6/4) dry, brown (10YR 4/3) moist; massive; moderately hard, friable, nonsticky, nonplastic; many fine and common very fine roots; many fine irregular pores; 10 percent silica bridging sand grains; 40 percent indurated volcanic rock gravel, 30 percent indurated volcanic rock cobbles and 10 percent indurated volcanic rock stones; slightly acid (pH 6.4)

TYPE LOCATION: Klamath County, Oregon; about 10 miles south and 16 miles west of Chiloquin; 610 m east and 580 m north of the southwest corner of section 18, T. 36 S., R. 6 E., Lake of the Woods N., Oregon USGS quadrangle; latitude 42.4362221 degrees north, longitude 122.1616745 degrees west (coordinates converted from NAD 27 location derived from GPS unit)

RANGE IN CHARACTERISTICS:
Soil temperature regime: frigid
Mean annual soil temperature-- 3.0 to 8.0 degrees C
Mean summer soil temperature-- 11.6 to 13.0 degrees C
Mean winter soil temperature-- 2.2 to 3.6 degrees C
Moisture control section--20 to 60 cm; xeric regime; dry in all parts for 45 to 60 days in August, September or October
Rock fragments--volcanic rock, typically andesite
Umbric epipedon--50 to 100 cm thick
Base saturation by sum of bases throughout the profile: 3 to 15 percent
Depth to lithologic discontinuity (2Bq horizon)--50 to 100 cm

Particle-size control section, upper medial-skeletal part (1 to 70 cm)
*Clay content--3 to 10 percent
*Rock fragment content--35 to 60 percent

Particle-size control section, lower ashy-skeletal part (70 to 160 cm)
*Clay content--0 to 7 percent
*Rock fragment content--50 to 80 percent

Estimated andic soil properties, upper part (A and BA horizons)
*Volcanic glass--10 to 30 percent
*Al+1/2Fe--2.5 to 5.0 percent
*P-retention--85 to 100 percent
*1/3-bar bulk density--0.85 to 1.4 g/cm3
*15 kPa water (air-dried samples)--20 to 30 percent
*Oxalate extractable silica--1.5 to 2.0 percent

Estimated andic soil properties, lower part (2Bq horizon)
*Volcanic glass--10 to 30 percent
*Al+1/2Fe--1.0 to 2.5 percent
*P-retention--50 to 70 percent
*1/3-bar bulk density--1.00 to 1.35 g/cm3
*15 kPa water (air-dried samples)--5 to 10 percent
*Oxalate extractable silica--0.9 to 1.5 percent

A horizons
Hue--7.5YR or 10YR moist or dry
Value--2 to 3 moist, 3 or 4 dry
Chroma--2 or 3 moist or dry
Texture--medial sandy loam, medial coarse sandy loam
Total content of rock fragments--5 to 34 percent
Gravel content--5 to 20 percent
Cobble content--0 to 10 percent
Stone content--0 to 5 percent
Clay content--2 to 10 percent
Reaction--moderately acid or slightly acid (pH 5.6 to 6.5)
Organic matter--8 to 20 percent
Thickness--35 to 85 cm

BA horizon
Value--2 or 3 moist, 4 or 5 dry
Chroma--2 or 3 moist, 2 to 4 dry
Texture--medial sandy loam, medial coarse sandy loam
Total content of rock fragments--40 to 80 percent
Gravel content--10 to 50 percent
Cobble content--10 to 30 percent
Stone content--0 to 10 percent
Clay content--2 to 10 percent
Reaction--moderately acid or slightly acid (pH 5.6 to 6.5)
Organic matter--3 to 8 percent
Thickness--15 to 50 cm

2Bq horizon
Hue--10YR moist or dry
Value--3 to 6 moist, 5 to 7 dry
Chroma--3 to 6 moist, 3 or 4 dry
Texture--ashy coarse sand, ashy loamy coarse sand
Total content of rock fragments--50 to 80 percent
Gravel content--30 to 40 percent
Cobble content--20 to 40 percent
Stone content--0 to 15 percent
Clay content--0 to 7 percent
Reaction--moderately acid or slightly acid (pH 5.6 to 6.5)
Organic matter--0.5 to 1.0 percent

COMPETING SERIES:
Juniperlake--dry for 90 days July through October; 60 to 85 frost free days; densic contact with slightly hard to very hard material between 100 and 150 cm
McNair--formed in ash over colluvium and residuum from volcanic mudflows and are underlain by a paralithic contact; dry for 90 days July through October; 80 to 110 frost free days; mean annual precipitation over 1900 mm; 10 to 18 percent clay in the particle size control section

GEOGRAPHIC SETTING:
Elevation--1260 to 1530 m
Slope--1 to 4 percent
Climate--cold wet winters, cool dry summers
Mean annual air temperature--3.0 to 6.9 degrees C
Mean annual precipitation--560 to 1200 mm
Frost-free period--40 to 70 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Anniecreek--somewhat poorly drained; irregular decrease in organic carbon with depth; redoximorphic accumulations beginning at depths of 50 to 100 cm
Hoxie--poorly drained; less than 15 percent rock fragments in the particle-size control section
Kyotesue--well drained; medial loam or medial sandy loam textures in the less than 2 mm fraction throughout the particle-size control section
Pokegema--well drained; less than 35 percent rock fragments in the lower portion of the particle-size control section
Tatersoup--moderately well drained; lithologic discontinuity with ashy-skeletal material greater than 100 cm below the mineral soil surface; mollic epipedon
Woodcock--well drained; argillic horizons

DRAINAGE AND PERMEABILITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--high in the A and BA horizons; high to very high in the 2Bq horizon

USE AND VEGETATION:
Use--gravel and sand quarries, timber production, wildlife habitat, recreation
Vegetation--forested communities with a canopy of ponderosa pine and widely dispersed white fir over a shrub component with variable structure and cover dominated by Saskatoon serviceberry or antelope bitterbrush and an herbaceous component with light to moderate cover dominated by Idaho fescue

DISTRIBUTION AND EXTENT: Klamath County, Oregon; Klamath and Shasta Valleys and Basins, Oregon; MLRA 21. Series is of small extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Davis, California

SERIES PROPOSED: Winema National Forest, Klamath County, Oregon, 2008

REMARKS:
Diagnostic horizons and features recognized in this pedon
*Umbric epipedon--zone from 2 to 70 cm (A1, A2 and BA horizons)
*Andic soil properties--zone from 2 to 160 cm
*Particle-size control section--2 to 102 cm, with 2 to 70 cm being medial-skeletal and amorphic, and 70 to 102 cm being ashy-skeletal and amorphic. Classification is based on the thickest part (medial-skeletal and amorphic). Need to propose a contrasting particle-size class of medial-skeletal over ashy-skeletal with 15 bar water qualifying statement the same as used in the medial over ashy contrasting particle size class family.

ADDITIONAL DATA:
NASIS SITE ID--04-JFD-17; NASIS PEDON ID--04OR683017
NSSL data from the OSD typical pedon, Lab Pedon Number 08N0203.

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National Cooperative Soil Survey
U.S.A.