LOCATION LAINAND WA
Established Series
Rev. HRG/PNP/KDPL/SBC
09/2019
LAINAND SERIES
Landscape--plateaus, canyonlands, hills
Landform--ridges, canyons, hillslopes
Slope--15 to 65 percent
Parent material--basalt colluvium with an influence of mixed loess and volcanic ash in the upper part
Mean annual precipitation--about 360 mm
Mean annual air temperature--about 9 degrees C
Depth class--deep, 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: Lainand gravelly ashy loam in an area of rangeland, on a 29-percent, northwest-facing slope at an elevation of 880 m (All textures are apparent field textures.)
A1--0 to 10 cm; gravelly ashy loam, brown (10YR 4/3) dry, very dark grayish brown (10YR 3/2) moist; weak thick platy structure parting to weak medium and fine granular; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and few medium roots; many very fine irregular and tubular pores; 20 percent gravel and 5 percent cobbles; neutral (pH 6.8); clear smooth boundary
A2--10 to 23 cm; very gravelly ashy loam, brown (10YR 4/3) dry, very dark grayish brown (10YR 3/2) moist; moderate medium and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and few medium roots; many very fine irregular and tubular pores; 35 percent gravel and 15 percent cobbles; neutral (pH 6.8); abrupt wavy boundary
AB--23 to 56 cm; very gravelly ashy loam, brown (10YR 4/3) dry, very dark grayish brown (10YR 3/2) moist; moderate medium and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and few medium roots; many very fine irregular and tubular pores; 40 percent gravel and 15 percent cobbles; neutral (pH 6.6); clear wavy boundary
2Bt1--56 to 76 cm; extremely gravelly clay loam, yellowish brown (10YR 5/4) dry, dark brown (7.5YR 3/4) moist; moderate medium and fine subangular blocky structure; hard, firm, moderately sticky and moderately plastic; common very fine and fine roots; common very fine tubular pores; few patchy distinct yellowish red (5YR 5/8) clay films on faces of peds and common distinct (7.5YR) pressure faces on peds; 50 percent gravel and 15 percent cobbles; slightly acid (pH 6.4); clear wavy boundary
2Bt2--76 to 109 cm; extremely cobbly loam, brown (7.5YR 4/4) dry, dark brown (7.5YR 3/4) moist; moderate medium and fine subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few very fine roots; common very fine tubular pores; few distinct patchy yellowish red (5YR 5/8) clay films on faces of peds; common distinct (7.5YR) pressure faces on peds; 40 percent gravel and 45 percent cobbles; slightly acid (pH 6.4); abrupt irregular boundary
3R--109 cm; basalt
TYPE LOCATION: Kittitas County, Washington, about 210 m south and 640 m east of the northwest corner of section 20, T. 16 N., R. 21 E.; McDonald Spring U.S. Geological Survey topographic quadrangle; latitude 46 degrees, 51 minutes, 53 seconds north and longitude 120 degrees, 13 minutes, 27 seconds west
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--8 to 11 degrees C
Moisture control section--usually moist, but dry in all parts 90 to 105 consecutive days following summer solstice
Thickness of mollic epipedon--51 to 74 cm
Upper 50 to 75 cm--estimated moist bulk density of 1.1 to 1.3 g/cm3, volcanic glass content of 5 to 20 percent, acid oxalate aluminum plus one-half iron of 0.4 to 0.7 percent, and 15-bar water retention of 5 to 10 percent (air-dried samples)
Particle-size control section--averages 30 to 35 percent clay and 35 to 85 percent coarse fragments, including at least 5 percent cobbles
Estimated organic matter content--2 to 4 percent
Depth to extremely gravelly or extremely cobbly 2Bt horizon--53 to 81 cm
Thickness of solum and depth to bedrock--100 to 150 cm or more
A horizon
Hue--7.5YR, 10YR
Value--3 to 5 dry, 2 or 3 moist
Chroma--1 to 3 moist
Texture of A2 horizon--ashy silt loam, gravelly ashy silt loam, very gravelly ashy loam, ashy loam, gravelly ashy loam
Combined thickness--18 to 41 cm
AB horizon
Value--3 to 5 dry, 2 or 3 moist
Chroma--2 or 3 dry or moist
Texture--very cobbly ashy loam, very gravelly ashy loam, cobbly ashy loam
Thickness--30 to 41 cm
2Bt horizon
Hue--7.5YR, 10YR
Value--4 to 6 dry, 3 or 4 moist
Chroma--3 to 4 dry or moist
Texture--extremely gravelly clay loam, very cobbly clay loam, or extremely cobbly clay loam in upper part; very gravelly clay loam, very gravelly loam, or extremely cobbly loam in lower part
Combined thickness--51 to 89 cm
COMPETING SERIES:
Ackna--less than 15 percent rock fragments in upper part of argillic horizon; 0.25 to 0.40 percent acid oxalate aluminum plus one-half iron; 25 to 30 percent clay in particle-size control section
Blint--50 to 100 cm (moderately deep) to a lithic contact (basalt)
Brincken--no lithic contact within a depth of more than 150 cm (very deep)
Brysill--30 to 45 cm to 2Bt horizon; 25 to 30 percent clay in particle-size control section; aridic soil moisture regime
Bunselmeier--sandy clay loam in particle-size control section; 100 to 150 cm (deep) to unweathered cinders; mollic epipedon 25 to 36 cm thick
Cubhill--dominantly rounded glacial till fragments in particle-size control section
Hehe--10 to 25 percent medium, coarse, and very coarse sand; 50 to 100 cm (moderately deep) to a paralithic contact (andesite); dry 60 to 90 consecutive days following summer solstice
Hovelton--50 to 100 cm (moderately deep) to a lithic contact (basalt); dry 60 to 90 consecutive days
Leidl--mollic epipedon 50 to 100 cm thick; hue of 7.5YR or redder; 50 to 100 cm (moderately deep) to a lithic contact (basalt)
McDaniel--dry 60 to 90 consecutive days following summer solstice
Millhouse--20 to 25 percent clay in particle-size control section; 50 to 100 cm deep to 2C horizon; dominantly rounded and subrounded alluvial rock fragments
Nint--50 to 100 cm (moderately deep) to a lithic contact (basalt); dry 75 to 90 consecutive days
Norod--50 to 100 cm (moderately deep) to a lithic contact (basalt); 65 to 95 cm deep to secondary carbonates
Skooker--dry 60 to 90 consecutive days following summer solstice
Tekoa--50 to 100 cm (moderately deep) to a lithic contact (shale)
GEOGRAPHIC SETTING:
Elevation--610 to 1075 m
Mean annual precipitation--310 to 380 mm
Climate--warm, dry summers; cool, moist winters
Mean January air temperature--about -4 degrees C
Mean July air temperature--about 20 degrees C
Mean annual air temperature--7 to 10 degrees C
Frost-free season--80 to 135 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Blint--on hillslopes; 50 to 100 cm (moderately deep) to a lithic contact (basalt)
Camaspatch--on hillslopes; 30 to 50 cm (shallow) to a lithic contact (basalt); clayey-skeletal particle-size class
Rockly--on hillslopes; 10 to 30 cm (very shallow, shallow) to a lithic contact (basalt)
Tanksel--on hillslopes; clayey-skeletal particle-size class; 50 to 100 cm (moderately deep) to a lithic contact (basalt)
Windry--on hillslopes; 36 to 50 cm (shallow) to a lithic contact (basalt)
Wockum--on hillslopes; fine-loamy particle-size class
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high
USE AND VEGETATION:
Use--livestock grazing, wildlife habitat
Native vegetation--bluebunch wheatgrass, Idaho fescue, Sandberg bluegrass, Wyoming big sagebrush
DISTRIBUTION AND EXTENT: Yakima and Kittitas Counties, Washington; MLRA 8; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Yakima Training Center, Yakima County, Washington; 1994
REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Mollic epipedon--zone from the surface to a depth of 56 cm
*Argillic horizon--zone from 56 to 109 cm
*Particle-size control section--zone from 56 to 107 cm
*Vitrandic feature--zone from the surface to a depth of 56 cm
1994--The classification was changed from Pachic Argixerolls to Vitrandic Argixerolls.
National Cooperative Soil Survey
U.S.A.