LOCATION LEIDL WA
Established Series
Rev. LJH/RJE/TLA/RWL
09/2019
LEIDL SERIES
Landscape--canyonlands
Landform--canyon slopes
Slope--2 to 75 percent
Parent material--colluvium and residuum derived from basalt with an influence of volcanic ash and loess in the upper part
Mean annual precipitation--about 580 mm
Mean annual air temperature--about 9 degrees C
Depth class--moderately 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: Leidl extremely cobbly ashy loam in an area of rangeland, on a 55-percent, west-facing backslope at an elevation of 300 m
A--0 to 13 cm; extremely cobbly ashy loam, brown (7.5YR 5/3) dry, dark reddish brown (5YR 3/3) moist; weak very fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; many very fine interstitial pores; 15 percent gravel, 35 percent cobbles, and 10 percent stones; slightly acid (pH 6.4); clear smooth boundary
BAt--13 to 30 cm; very gravelly ashy clay loam, reddish brown (5YR 4/4) dry, dark reddish brown (2.5YR 3/3) moist; weak fine granular structure; slightly hard, friable, moderately sticky and moderately plastic; many very fine roots; many very fine interstitial pores and few very fine tubular pores; few faint clay films on faces of peds; 45 percent gravel and 10 percent cobbles; slightly acid (pH 6.4); clear wavy boundary
Bt--30 to 64 cm; extremely gravelly clay loam, brown (7.5YR 5/4) dry, dark reddish brown (5YR 3/4) moist; weak very fine and fine subangular blocky structure; hard, friable, moderately sticky and moderately plastic; common very fine and fine roots; many very fine interstitial pores and common very fine tubular pores; many distinct clay films on faces of peds; 50 percent gravel and 20 percent cobbles; neutral (pH 6.6); abrupt irregular boundary
R--64 cm; fractured basalt
TYPE LOCATION: Klickitat County, Washington, about 21 km northwest of Goldendale; about 1075 m north and 910 m east of the southwest corner of section 31, T. 5 N., R. 14 E.; latitude 45 degrees 52 minutes 45 seconds north and longitude 121 degrees 5 minutes 50 seconds west
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--8 to 10 degrees C
Soil moisture control section--dry in all parts 75 to 90 consecutive days during the 4 months following summer solstice in 6 years or more out of 10 years
Depth to bedrock--50 to 100 cm
Upper 20 to 35 cm--estimated moist bulk density of 1.1 to 1.4 g/cm3, volcanic glass content of 5 to 30 percent, acid oxalate aluminum plus one-half iron of 0.4 to 1.0 percent, phosphorus retention of 25 to 50 percent, and 15-bar water retention of 5 to 12 percent (air-dried samples)
Particle-size control section--averages from 30 to 60 percent gravel and 10 to 35 percent cobbles; 27 to 35 percent clay
Reaction--6.1 to 7.3 throughout
Base saturation--less than 75 percent in some part of solum
Thickness of mollic epipedon--20 to 46 cm
A horizon
Hue--5YR, 7.5YR, 10YR
Value--4 or 5 dry, 2 or 3 moist
Thickness--3 to 18 cm
BAt horizon (where present)
Hue--2.5YR to 7.5YR
Value--4 or 5 dry
Texture--very gravelly ashy clay loam, very cobbly ashy clay loam, very gravelly clay loam, very cobbly clay loam, extremely gravelly ashy clay loam, extremely cobbly clay loam
Thickness--0 to 38 cm
Bt horizon
Hue--2.5YR to 10YR
Chroma--3 to 6 moist or dry
Texture--very gravelly clay loam, extremely gravelly clay loam, very cobbly clay loam
Clay films--faint to distinct; on faces of peds and in pores
Thickness--28 to 51 cm
COMPETING SERIES:
Ackna--no lithic contact within a depth of more than 150 cm; dry 90 to 100 consecutive days following summer solstice
Blint--dry 90 to 100 consecutive days following summer solstice; mollic epipedon 51 to 64 cm thick
Brincken--no lithic contact within a depth of more than 150 cm
Brysill--no lithic contact within a depth of more than 150 cm; dry 90 to 120 consecutive days following summer solstice
Bunselmeier--100 to 150 cm deep to unweathered cinders (C horizon)
Cubhill--no lithic contact within a depth of more than 150 cm; dry 90 to 105 consecutive days following summer solstice
Hehe--50 to 100 cm (moderately deep) to a paralithic contact (andesite)
Hovelton--18 to 27 percent clay in particle-size control section
Lainand--no lithic contact within a depth of 100 cm or more; dry 90 to 100 consecutive days following summer solstice
McDaniel--no lithic contact within a depth of more than 150 cm; mollic epipedon 50 to 100 cm thick
Millhouse--no lithic contact within a depth of more than 150 cm; dry 90 to 100 consecutive days following summer solstice
Nint--mollic epipedon 51 to 89 cm thick
Norod--64 to 97 cm deep to secondary carbonates; dry 100 to 120 consecutive days following summer solstice
Skooker--100 to 150 cm (deep) to a lithic contact (sandstone); mollic epipedon 51 to 76 cm thick
Tekoa--50 to 100 cm (moderately deep) to a lithic contact (shale); 35 to 60 percent channers in particle-size control section; dry 60 to 75 consecutive days following summer solstice
GEOGRAPHIC SETTING:
Elevation--60 to 1275 m
Climate--warm, dry summers; cool, moist winters
Mean annual precipitation--380 to 640 mm
Mean January air temperature--about -2 degrees C
Mean July air temperature--19 degrees C
Mean annual air temperature--8 to 9 degrees C
Frost-free season--75 to 140 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Dalig--no lithic contact within a depth of more than 150 cm; on plateaus and benches
Gunn--100 to 150 cm or more (deep, very deep) to a lithic contact (basalt); on plateaus and benches
Itat--no lithic contact within a depth of more than 150 cm; on foothills and plateaus
Kaiders--no lithic contact within a depth of more than 150 cm; on mountains and foothills
Kiakus--mollic epipedon 50 to 100 cm thick; nonskeletal; on plateaus and benches
Yedlick--no lithic contact within a depth of more than 150 cm; on mountains
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high
USE AND VEGETATION:
Use--mainly wildlife habitat and livestock grazing
Native vegetation--Idaho fescue, bluebunch wheatgrass, Sandberg bluegrass, arrowleaf balsamroot, biscuitroot, Oregon white oak, lupine, bigheaded clover, phlox
DISTRIBUTION AND EXTENT: South-central and central Washington; MLRA 6; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Douglas County, Washington; 1998
REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Mollic epipedon--zone from the surface to a depth of 30 cm
*Argillic horizon--zone from 13 to 64 cm
*Depth to lithic contact--64 cm
*Particle-size control section--zone from 13 to 64 cm
*Vitrandic feature--zone from the surface to a depth of 30 cm
*Ultic feature--zone from 30 to 64 cm; base saturation (sum) of 73 percent
ADDITIONAL DATA:
Characterization data--pedon number 87P0063; National Soil Survey Laboratory
National Cooperative Soil Survey
U.S.A.