LOCATION PRESHER WAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Typic Haploxerepts
TYPICAL PEDON: Presher cobbly loam - forested on a 3 percent slope at an elevation of 2,650 feet. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 1 inch; slightly decomposed needles and twigs.
A--1 to 7 inches; brown (7.5YR 5/3) cobbly loam, dark brown (7.5YR 3/3) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; common fine and few medium roots; many very fine irregular pores; 15 percent gravel and 12 percent cobbles; slightly acid (pH 6.2); clear smooth boundary. (3 to 6 inches thick)
BA--7 to 19 inches; light brown (7.5YR 6/4) gravelly loam, dark reddish brown (5YR 3/4) moist; weak very fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common fine and few medium roots; many fine tubular and many very fine irregular pores; 15 percent gravel; moderately acid (pH 6.0); gradual smooth boundary. (4 to 12 inches thick)
Bw1--19 to 37 inches; light brown (7.5YR 6/4) loam, dark brown (7.5YR 3/4) moist; weak fine subangular blocky structure; hard, friable, moderately sticky and moderately plastic; few medium and few fine roots; many fine tubular and many very fine irregular pores; 10 percent gravel; moderately acid (pH 6.0); gradual smooth boundary. (5 to 18 inches thick)
Bw2--37 to 53 inches; light reddish brown (5YR 6/4) loam, dark reddish brown (5YR 3/4) moist; weak fine angular blocky structure; hard, friable, slightly sticky and slightly plastic; few fine roots; many fine tubular and many very fine irregular pores; 10 percent gravel; moderately acid (pH 5.8); gradual smooth boundary (11 to 22 inches thick)
Bw3--53 to 61 inches; brown (7.5YR 5/4) gravelly loam, reddish brown (5YR 4/4) moist; weak very fine angular blocky structure; hard, friable, moderately sticky and moderately plastic; few very fine roots; many fine tubular and many very fine irregular pores; 20 percent gravel; moderately acid (pH 5.8).
TYPE LOCATION: Klickitat County, Washington; 1 mile west of Cedar Valley Road on the Quinney Flats Road; 1,500 feet south and l,000 feet east of the northwest corner of section 4, T. 5 N., R. 15 E. (Latitude 45 degrees, 56 minutes, 10 seconds N. and Longitude 120 degrees, 57 minutes, 04 seconds W.)
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 47 to 50 degrees F. The soil moisture control section is dry in all parts for 75 to 90 consecutive days within the 4 months that follow the summer solstice in 6 or more years out of 10. Rock fragments in the particle-size control section average from 10 to 20 percent and below 40 inches may range over 35 percent. Clay content in the particle-size control section ranges from 18 to 24 percent.
The A horizon has hue of 5YR or 7.5YR, value of 4 or 5 dry, and chroma of 2 or 3 dry and moist. Texture is cobbly loam or stony loam.
The BA horizon has hue of 5YR or 7.5YR, value of 3 or 4 moist and chroma of 3 or 4 dry and moist. Texture is gravelly loam or cobbly loam. Reaction is slightly acid or moderately acid.
The Bw horizon has hue of 5YR or 7.5YR, value of 5 or 6 dry, 3 or 4 moist, and chroma of 3 or 4 dry and moist. Texture is loam or gravelly loam. Reaction is slightly acid or moderately acid.
COMPETING SERIES: These are the
Cariboucreek (T),
Debenger,
Kerby,
Offenbacher, and
Springwater series.
Cariboucreek soils dry for more than 90 consecutive days following the summer solstice; have 0 to 10 percent rock fragments in the particle-size control section
Debenger soils - have bedrock at a depth of 20 to 40 inches; dry for 80 to 110 consecutive days following the summer solstice
Kerby soils - are dry for 80 to 110 consective days following the summer solstice; have a solum 30 to 50 inches thick; have a mean annual soil temperature of 54 to 56 degrees F.; a very gravelly sand or very gravelly sandy loam C horizon
Offenbacher - have bedrock at a depth of 20 to 40 inches; are dry for 80 to 110 consecutive days following the summer solstice
Springwater soils - have a paralithic contact at depths of 20 to 40 inches; are dry for 45 to 60 consecutive days following the summer solstice
GEOGRAPHIC SETTING: Presher soils are on plateaus and footslopes of mountains at elevations of 2,000 to 3,300 feet. Slopes are 2 to 30 percent. Presher soils formed in colluvium and residuum derived from basalt mixed with loess and minor amounts of volcanic ash. Summers are dry and warm; winters are cool and moist. The mean annual precipitation is 25 to 30 inches. The average January temperature is 26 degrees F. and the average July temperature is 64 degrees F. The mean annual temperature is 45 to 48 degrees F. The frost-free season is 100 to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Kaiders, Maydol, Nook, Quiden, and Suta soils. Kaiders and Suta soils are loamy-skeletal. Nook and Maydol soils have a mollic epipedon. Quiden soils are coarse-loamy and have a soil moisture control section that is dry in all parts for 90 to 105 consecutive days.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability.
USE AND VEGETATION: These soils are used mainly for timber production, grazable woodland, and wildlife habitat. Vegetation includes Douglas-fir and ponderosa pine, with an understory of western hazel, prince's pine, snowbrush ceanothus, Oregongrape, and elk sedge.
DISTRIBUTION AND EXTENT: Klickitat County, Washington. MLRA 6. The series is moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Klickitat County, Washington, 2003.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 1 to 7 inches (A horizon)
Cambic horizon - the zone from 7 to 61 inches (BA, Bw1, Bw2, and Bw3 horizons)
Particle-size control section - the zone from 1 to 41 inches
Depth to diagnostic horizons and features are measured from the top of the first mineral layer.
ADDITIONAL DATA: Partial laboratory data available - sample number S76WA-039-5.