LOCATION JEBE                    WA

Established Series
Rev. EH/RJE/RWL
09/2019

JEBE SERIES

Landscape--canyonlands
Landform--canyons, north aspects
Slope--30 to 90 percent
Parent material--colluvium derived from basalt mixed with loess and a minor influence of volcanic ash
Mean annual precipitation--about 1000 mm
Mean annual air temperature--about 8 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 Ultic Argixerolls

TYPICAL PEDON: Jebe gravelly loam, forested, on a 70-percent, northwest-facing side slope at an elevation of 460 m

A1--0 to 13 cm; gravelly loam, dark grayish brown (10YR 4/2) dry, very dark brown (10YR 2/2) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and fine roots; many fine irregular pores; 25 percent gravel and 5 percent cobbles; moderately acid (pH 5.8); clear smooth boundary

A2--13 to 33 cm; very gravelly loam, grayish brown (10YR 5/2) dry, very dark grayish brown (10YR 3/2) moist; weak fine subangular blocky structure; soft, friable, nonsticky and slightly plastic; many very fine, fine, and medium roots; many fine irregular and common fine tubular pores; 25 percent gravel and 15 percent cobbles; moderately acid (pH 5.8); clear wavy boundary

BA--33 to 79 cm; very gravelly loam, brown (7.5YR 5/4) dry, dark brown (7.5YR 3/4) moist; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine, fine, and medium roots; common fine and medium tubular pores; 30 percent gravel and 10 percent cobbles; moderately acid (pH 6.0); gradual wavy boundary

Bt1--79 to 109 cm; very gravelly loam, brown (7.5YR 5/4) dry, dark brown (7.5YR 3/4) moist; moderate fine and medium subangular blocky structure; slightly hard; firm, slightly sticky and moderately plastic; common fine roots; common fine tubular pores; few faint clay films on faces of peds and in pores; 40 percent gravel, 20 percent cobbles, and 10 percent basalt paragravel; slightly acid (pH 6.2); gradual wavy boundary

Bt2--109 to 150 cm; extremely gravelly clay loam, light brown (7.5YR 6/4) dry, dark brown (7.5YR 3/4) moist; moderate medium subangular blocky structure; slightly hard, firm, slightly sticky and moderately plastic; few fine roots; few fine tubular pores; few faint clay films on faces of peds and in pores; 50 percent gravel, 15 percent cobbles, and 15 percent basalt paragravel; slightly acid (pH 6.2)

TYPE LOCATION: Klickitat County, Washington, about 4.8 km northwest of Snowden; about 30 m north and 535 m west of the southeast corner of section 10, T. 4 N., R. 11 E.

RANGE IN CHARACTERISTICS:
Moisture control section--usually moist, but dry 45 to 60 consecutive days following summer solstice
Mean annual soil temperature--8 to 10 degrees C
Particle-size control section--35 to 55 percent rock fragments and 10 to 20 percent pararock fragments (weighted average); average of 18 to 30 percent clay
Thickness of mollic epipedon--25 to 40 cm

A horizon
Hue--5YR to 10YR
Value--4 or 5 dry, 2 or 3 moist
Chroma--2 or 3 dry or moist
Reaction--5.1 to 6.0
Combined thickness--25 to 50 cm

BA or BAt horizon
Hue--7.5YR, 10YR
Value--5 or 6 dry
Chroma--3 or 4 moist
Texture--very gravelly loam, very cobbly loam
Clay content--15 to 20 percent
Reaction--5.6 to 6.5
Thickness of BA horizon--38 to 46 cm

Bt horizon
Hue--7.5YR, 10YR
Value--5 or 6 dry
Texture--very cobbly loam, very gravelly loam, extremely gravelly clay loam
Clay content--20 to 30 percent
Reaction--5.6 to 6.5
Combined thickness--54 to 90 cm

COMPETING SERIES:
Balake--dry 60 to 75 consecutive days following summer solstice; no pararock fragments in argillic horizon; rock fragments in particle-size control section dominantly conglomerate and alluvial material
Beezee--dry 60 to 75 consecutive days following summer solstice
Bluesprin--50 to 100 cm (moderately deep) to a lithic contact (basalt, andesite); dry 60 to 80 consecutive days following summer solstice
Fordice--dry 60 to 90 consecutive days following summer solstice; rock fragments in particle-size control section dominantly rounded and subrounded and volcanic alluvial material
Hunsinger--100 to 150 cm (deep) to a paralithic contact (basalt); dry 120 to 140 consecutive days following summer solstice
Jellico--50 to 100 cm (moderately deep) to a lithic contact (basalt); dry 110 to 130 consecutive days following summer solstice
Keuterville--no pararock fragments in particle-size control section
Legall--dry 75 to 90 consecutive days following summer solstice; mean annual soil temperature of 10 to 12 degrees C
Nashmead--100 to 150 cm (deep) to a lithic contact (sandstone, shale); dry more than 120 consecutive days following summer solstice; mean annual soil temperature of 12 to 15 degrees C
Riverpoint--dry 60 to 90 consecutive days following summer solstice; 40 to 100 cm to a lithologic discontinuity; 35 to 60 percent rock fragments in particle-size control section that are dominantly granodiorite alluvial material
Sauter--dry 60 to 75 consecutive days following summer solstice; no pararock fragments in argillic horizon; mollic epipedon 40 to 50 cm thick
Shanks--50 to 100 cm (moderately deep) to a lithic contact (granodiorite); dry 60 to 90 consecutive days following summer solstice; no pararock fragments in argillic horizon
Sienna--50 to 100 cm (moderately deep) to a lithic contact (basalt); dry 75 to 90 consecutive days following summer solstice; 35 to 60 percent rock fragments in particle-size control section that are dominantly rounded and quartzitic

GEOGRAPHIC SETTING:
Elevation--90 to 850 m
Climate--warm, dry summers; cool, wet winters
Mean annual precipitation--890 to 1150 mm
Mean January air temperature--about -2 degrees C
Mean July air temperature--about 18 degrees C
Mean annual air temperature--about 8 to 9 degrees C
Frost-free season--110 to 130 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Beezee--dry 60 to 75 consecutive days following summer solstice
Chemawa--ashy
Hood, McGowan, Para--fine-loamy

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

USE AND VEGETATION:
Use--mainly timber production, livestock grazing, wildlife habitat, and recreation
Native vegetation--Douglas-fir, ponderosa pine, some grand fir and bigleaf maple, vine maple, western hazel, creambush oceanspray, Oregon grape, rose

DISTRIBUTION AND EXTENT: Klickitat County, Washington; MLRA 6; small extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon

SERIES ESTABLISHED: Klickitat County, Washington; 2003

REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Mollic epipedon--zone from the surface to a depth of 33 cm
*Argillic horizon--zone from 79 to 150 cm
*Particle-size control section--zone from 79 to 130 cm

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National Cooperative Soil Survey
U.S.A.