LOCATION DEHLINGER               OR

Established Series
Rev. RHB/AON/BTH/CEG
06/2022

DEHLINGER SERIES

Landscape--intermontane basins
Landform--fault scarps
Slope--10 to 75 percent
Parent material--very gravelly colluvium weathered from basalt, tuff, and andesite, with an influence of volcanic ash in the upper part
Mean annual precipitation--about 355 mm
Mean annual air temperature--about 9.4 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--mesic
Soil moisture subclass--typic

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Vitrandic Argixerolls

TYPICAL PEDON: Dehlinger very stony ashy loam, rangeland

A--0 to 15 cm; very stony ashy loam, grayish brown (10YR 5/2) dry, very dark brown (10YR 2/2) moist; weak very fine and fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine roots; many very fine pores; 45 percent stones, cobbles and gravel; neutral (pH 7.2); clear wavy boundary

AB--15 to 46 cm; extremely gravelly ashy clay loam, dark grayish brown (10YR 4/2) dry, very dark grayish brown (10YR 3/2) moist; weak fine subangular blocky structure; very friable, slightly sticky and slightly plastic; common very fine and few fine roots; many very fine dendritic tubular pores; 65 percent gravel and cobbles; neutral (pH 7.2); clear wavy boundary

Bt1--46 to 69 cm; extremely gravelly clay loam, brown (10YR 5/3) dry, dark brown (10YR 3/3) moist; weak medium subangular blocky structure; friable, moderately sticky and moderately plastic; common very fine roots; many very fine dendritic tubular pores; 75 percent gravel and cobbles; 10 percent clay films on rock fragments and on surfaces lining pores; neutral (pH 7.2); gradual wavy boundary

Bt2--69 to 135 cm; extremely gravelly clay loam, brown (10YR 5/3) dry, dark yellowish brown (10YR 4/4) moist; weak fine subangular blocky structure; friable, moderately sticky and moderately plastic; common very fine roots; many very fine dendritic tubular pores; 70 percent gravel and cobbles; 10 percent clay films on rock fragments and on surfaces lining pores; slightly alkaline (pH 7.4); gradual wavy boundary

Bt3--135 to 178 cm; very gravelly clay loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; moderate fine angular blocky structure; friable, moderately sticky and moderately plastic; common very fine roots; many very fine dendritic tubular pores; 47 percent gravel, cobbles, and stones; 5 percent clay films on rock fragments and on surfaces lining pores; slightly alkaline (pH 7.4)

TYPE LOCATION: Klamath County, Oregon; about 10 km south of Klamath Falls on northwest slope of Stukel Mountain; Altamont, Oregon USGS quadrangle; 762 m west and 95 m south of the NE corner of section 5, T.40S., R.10E; latitude 42.1252500 degrees north, longitude 121.6683000 west, datum WGS84 (coordinates determined from legal description).

RANGE IN CHARACTERISTICS:

*Soil temperature: mesic regime
*Mean annual soil temperature-- 8.0 to 12.2 degrees C
*Moisture control section--10 to 30 cm; xeric regime; dry for 90 to 120 consecutive days in the four-month period following the summer solstice
*Mollic epipedon--50 to 90 cm thick

Particle-size control section
*Clay content--18 to 30 percent
*Rock fragment content--35 to 75 percent, with 0 to 25 percent being cobbles and stones

Estimated properties, A and AB horizon(s)
*Thickness--10 to 55 cm
*Ammonium oxalate extractable Al plus 1/2 Fe--0.2 to 0.4 percent
*Volcanic glass content--5 to 20 percent
*1/3-bar bulk density--1.0 to 1.35 g/cm3
*1500 kPa water (air-dried samples)--10 to 15 percent

A horizon(s)
*Hue--10YR or 7.5YR, dry or moist
*Value--4 or 5 dry, 2 to 3 moist
*Chroma--1 or 2, dry or moist
*Fine-earth texture--ashy sandy loam, ashy loam, ashy clay loam
*Clay content--10 to 27 percent
*Total content of rock fragments--15 to 59 percent
*Gravel content--5 to 30 percent
*Cobble content--3 to 6 percent
*Stone content--8 to 17 percent
*Boulder content--0 to 5 percent
*Reaction--neutral or slightly alkaline (pH 6.6 to 7.8)
*Thickness--10 to 20 cm

AB horizon(s) (where present)
*Hue--10YR or 7.5YR, dry or moist
*Value--4 or 5 dry, 2 or 3 moist
*Chroma--1 or 2, dry or moist
*Fine-earth texture--ashy sandy loam, ashy loam, ashy clay loam
*Clay content--15 to 30 percent
*Total content of rock fragments--35 to 80 percent
*Gravel content--10 to 65 percent
*Cobble content--0 to 17 percent
*Stone content--0 to 17 percent
*Boulder content--0 to 5 percent
*Reaction--neutral or slightly alkaline (pH 6.6 to 7.8)
*Thickness--0 to 35 cm

Bt horizon(s)
*Hue--10YR or 7.5YR, dry or moist
*Value--4 to 6 dry, 3 or 4 moist
*Chroma--2 to 4, dry or moist
*Fine-earth texture--loam or clay loam
*Clay content--18 to 30 percent
*Total content of rock fragments--35 to 89 percent
*Gravel content--20 to 59 percent
*Cobble content--0 to 30 percent
*Stone content--0 to 3 percent
*Reaction--neutral or slightly alkaline (pH 6.6 to 7.8)

COMPETING SERIES:
Ackna--15-bar water is less than 10 percent; less than 35 percent rock fragments in the AB horizon and in the upper part of the argillic; sandy-skeletal at a depth of 100 to 150 cm; outwash terraces and alluviul fans; 0 to 5 percent slopes
Blint, Hehe, Hovelton, Leidl, Nint, Norod, Tekoa--less than 100 cm to a lithic or paralithic contact
Brincken--silt loam textures (finer ash) in the A, AB, and Bw horizons; lithologic discontinuity to buried loess at depths between 100 and 150 cm; 550 to 795 m elevation
Brysill-- sandy-skeletal at a depth of 100 to 150 cm; loess and alluvium; 0 to 5 percent slopes
Bunselmeier--100 to 150 cm deep to cinders
Cubhill--glacial till from sedimentary and volcanic rock with volcanic ash; acid oxalate extractable aluminum plus one-half iron greater than 0.4 percent; 110 to 140 frost free days
Lainand, Skooker--100 to 150 cm to a lithic or paralithic contact
Millhouse--sandy-skeletal at a depth of 50 to 100 cm; 130 to 150 frost free days; loess influence; alluvial fans and terraces; 0 to 10 percent slopes

GEOGRAPHIC SETTING:
Elevation--1250 to 1828 m
Climate--semiarid with warm dry summers and cool moist winters
Mean annual air temperature-- 6.9 to 11.0 degrees C
Mean January Temperature-- -2.8 to -1.7 degrees C
Mean July Temperature-- 17.8 to 20.6 degrees C
Mean annual precipitation--305 to 920 mm
Frost-free period--80 to 120 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Bodell--lithic contact 30 to 50 cm (shallow)
Calimus--cambic horizon; less than 10 percent rock fragments
Lorella--lithic contact 50 cm or less (shallow); clayey-skeletal argillic horizons
Shrubble (tentative)--fragmental
Stukel--bedrock (lithic contact) at 50 cm or less

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high to high

USE AND VEGETATION:
Use--rangeland, wildlife habitat
Vegetation--western juniper, big sagebrush, arrowleaf balsamroot, bluebunch wheatgrass, Thurber needlegrass

DISTRIBUTION AND EXTENT: Klamath and Shasta Valleys and Basins, Oregon; MLRA 21; extensive

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

SERIES ESTABLISHED:
Klamath County, Oregon, 1977

REMARKS:
Diagnostic horizons and features in this pedon
*Argillic horizon--Bt1, Bt2, and Bt3 horizons
*Volcanic glass--A and AB horizons
*Particle size control section--zone from 46 to 96 cm
*Mollic epipedon--A, AB, and Bt1 horizons

Some pedons have secondary carbonates and/or silica masses in the lower Bt horizon(s).

The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Reno MLRA office, without review of the soil series property data.

ADDITIONAL DATA:
NASIS SITE ID--1977OR035010; NASIS PEDON ID--1977OR035010

3/21/2022--edited this official series description to update classification (to include the vitrandic subgroup); added ashy textural modifiers; corrected fragment textural modifiers; updated horizonation, diagnostic features, and competing series.

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National Cooperative Soil Survey
U.S.A.