LOCATION ADAMSLAKE WA
Established Series
IRD SDH/KDPL/SBC
09/2019
ADAMSLAKE SERIES
Landscape--mountains, plateaus
Landform-- mountain slopes, ridges, structural benches
Slope--0 to 60 percent
Parent material--volcanic ash mantle over colluvium and residuum derived from basalt
Mean annual precipitation--about 760 mm
Mean annual air temperature--about 6 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--frigid
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy, amorphic, frigid Alfic Humic Vitrixerands
TYPICAL PEDON: Adamslake ashy fine sandy loam in an area of woodland, on a 5-percent, south-facing slope at an elevation of 1050 m (All textures are apparent field textures.)
Oi--0 to 5 cm; slightly decomposed forest litter
A--5 to 15 cm; ashy fine sandy loam, brown (7.5YR 4/2) dry, very dark gray (7.5YR 3/1) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine, fine, and medium and few coarse roots; common fine and medium irregular pores; 5 percent gravel; slightly acid (pH 6.1); NaF pH 10.0; clear wavy boundary
Bw--15 to 61 cm; ashy fine sandy loam, reddish brown (5YR 4/3) dry, dark reddish brown (5YR 3/2) moist; weak subangular blocky structure parting to weak fine granular; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine, fine, medium, and coarse roots; 5 percent gravel and 1 percent cobbles; slightly acid (pH 6.1); NaF pH 10.0; gradual wavy boundary
Bt1--61 to 76 cm; ashy sandy clay loam, reddish brown (5YR 4/4) dry, dark reddish brown (5YR 3/3) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common medium and coarse roots; common fine and medium tubular pores; very few faint clay films on faces of peds and in pores; 10 percent gravel; slightly acid (pH 6.2); NaF pH 10.1; gradual wavy boundary
Bt2--76 to 107 cm; paragravelly ashy sandy clay loam, reddish brown (5YR 4/4) dry, reddish brown (5YR 4/3) moist; moderate medium and coarse subangular blocky structure; hard, firm, moderately sticky and moderately plastic; few fine and medium roots; common fine and medium tubular pores; common distinct clay films on faces of peds and in pores; 10 percent gravel, 2 percent cobbles, and 10 percent paragravel; slightly acid (pH 6.1); NaF pH 9.7; gradual wavy boundary
2Bt3--107 to 147 cm; gravelly clay loam, brown (7.5YR 4/4) dry, dark brown (7.5YR 3/4) moist; strong medium and coarse subangular blocky structure; slightly hard, firm, moderately sticky and moderately plastic; few fine and medium roots; few fine and medium tubular pores; common distinct clay films on faces of peds and in pores; 15 percent gravel and 10 percent paragravel; slightly acid (pH 6.5); NaF pH 9.0; gradual wavy boundary
2Bt4--147 to 160 cm; gravelly clay loam, reddish brown (5YR 4/3) dry, dark reddish brown (5YR 3/3) moist; strong medium subangular blocky structure; slightly hard, firm, moderately sticky and moderately plastic; few fine roots; few fine tubular pores; common distinct clay films on faces of peds and in pores; 15 percent gravel, 5 percent cobbles, and 10 percent paragravel; moderately acid (pH 6.0); NaF pH 9.0
TYPE LOCATION: Yakima County, Washington, about 1.5 km northwest of Simon Butte; about 700 m north and 550 m east of the southwest corner of section 8, T. 8 N., R. 15 E.; latitude 46.1933360, longitude -120.9606830, datum WGS 84 (coordinates estimated from section, township, and range)
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--7 to 8 degrees C
Moisture control section--usually moist, but dry 45 to 60 consecutive days following summer solstice
Andic soil material
*Thickness--100 to 125 cm
*Estimated moist bulk density--0.75 to 0.90 g/cm3
*Content of glass--5 to 30 percent
*Ammonium oxalate Al plus 1/2 Fe--2 to 4 percent
*Phosphorus retention--50 to 70 percent
*15-bar water retention (air-dried samples)--8 to 12 percent
Argillic horizon
*Content of clay--18 to 35 percent
*Content of gravel and cobbles--10 to 35 percent
Oi horizon
Thickness--3 to 5 cm
A horizon
Hue--7.5YR, 10YR
Value--3 to 5 dry, 2 to 4 moist
Chroma--2 to 4 dry or moist
Texture--ashy sandy loam, ashy fine sandy loam, ashy loam
Apparent content of clay (field estimate)--5 to 15 percent
Content of rock fragments--5 to 15 percent
Reaction--5.6 to 6.5
Thickness--8 to 48 cm
Bw horizon
Hue--5YR, 7.5YR, 10YR
Value--4 to 6 dry, 2 to 4 moist
Chroma--2 to 4 dry or moist
Texture--ashy fine sandy loam, gravelly ashy sandy clay loam
Apparent content of clay (field estimate)--10 to 30 percent
Content of rock fragments--5 to 20 percent
Reaction--5.6 to 6.5
Thickness--10 to 61 cm
Bt and 2Bt horizons
Hue--5YR, 7.5YR, 10YR
Value--4 or 5 dry, 2 to 4 moist
Chroma--2 to 4 dry or moist
Texture of Bt horizon--ashy sandy loam, paragravelly ashy sandy clay loam, gravelly ashy sandy clay loam
Texture of 2Bt horizon--gravelly clay loam
Content of rock fragments--10 to 35 percent
Reaction--5.6 to 6.5
Combined thickness of Bt horizon--46 to 132 cm
Combined thickness of 2Bt horizon--48 to 137 cm
COMPETING SERIES: None
GEOGRAPHIC SETTING:
Elevation--910 to 1525 m
Climate--warm, dry summers; cool, moist winters
Mean annual precipitation--635 to 890 mm
Mean January air temperature--about -5 degrees C
Mean July air temperature--about 17 degrees C
Mean annual air temperature--6 to 7 degrees C
Frost-free season--70 to 125 days
Growing season (-2 degrees C)--145 to 170 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Nank--on structural benches, plateaus, and side slopes; ochric epipedon; mixed mineralogy in volcanic ash mantle
Singh--on structural benches and side slopes; ashy over loamy-skeletal particle-size class
Whitedeer--on mountain slopes and structural benches; volcanic ash mantle 18 to 36 cm thick; loamy-skeletal Bss horizon; 50 to 100 cm (moderately deep) to a paralithic contact (basalt)
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high
USE AND VEGETATION:
Use--timber production, wildlife habitat, livestock grazing, recreation
Native vegetation--grand fir, ponderosa pine, Douglas-fir, pinegrass, common prince's pine, lamb's tongue fawn lily
DISTRIBUTION AND EXTENT: East slopes of Cascade Mountains, Yakama Nation, Yakima County, Washington; MLRA 6; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Yakama Nation, Yakima County, Washington; 2014
REMARKS:
Diagnostic horizons and other features in this pedon
*Umbric epipedon--zone from 5 to 76 cm
*Argillic horizon--zone from 76 to 160 cm
*Andic soil properties--zone from 5 to 107 cm
*Particle-size control section--zone from 5 to 107 cm; ashy with borderline amorphic or ferrihydritic mineralogy
4/2016--This official series description was updated according to SSR1 Technical Note 11--Content and Format of Official Series Descriptions (revised 12/2015). Most of the changes were in formatting; no major technical changes were made.
ADDITIONAL DATA:
Primary characterization data--sample number 90WA-077-002, pedon number 90P0723, series type location; Kellogg Soil Survey Laboratory, Lincoln, Nebraska
National Cooperative Soil Survey
U.S.A.