LOCATION GULER WATentative Series
TAXONOMIC CLASS: Ashy-skeletal, amorphic, mesic Humic Vitrixerands
TYPICAL PEDON: Guler stony ashy sandy loam - under Ponderosa pine forest on a 9 percent southwest-facing slope at an elevation of 1,880 feet. (Colors are for dry soil unless otherwise noted. All textures are apparent field textures.)
Oi--0 to 1 inch; undecomposed needles, leaves, twigs.
A1--1 to 6 inches; very dark grayish brown (10YR 3/2) stony ashy sandy loam, very dark brown (10YR 2/2) moist; weak very fine and fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine and fine and few medium roots; many very fine and fine irregular pores; 8 percent stones and 10 percent gravel; NaF pH 10.5; moderately acid (pH 5.8); clear wavy boundary. (4 to 10 inches thick)
A2--6 to 12 inches; brown (10YR 4/3) gravelly ashy sandy loam, dark brown (10YR 3/3) moist; weak very fine and fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine and fine and few medium roots; many very fine and fine irregular pores; 15 percent gravel; NaF pH 10.5, slightly acid (pH 6.5); clear smooth boundary. (5 to 10 inches thick)
Bw--12 to 26 inches; yellowish brown (10YR 5/4) gravelly ashy fine sandy loam, dark yellowish brown (10YR 3/4) moist; weak fine and very fine subangular blocky structure; soft, friable, nonsticky and nonplastic; very fine and fine irregular pores; 15 percent gravel and 5 percent cobbles; NaF pH 10.5, slightly acid (pH 6.5); clear wavy boundary. (12 to 15 inches thick)
BC--26 to 61 inches; yellowish brown (10YR 5/6) extremely gravelly ashy fine sandy loam, dark yellowish brown (10YR 4/6) moist; weak fine and very fine subangular blocky structure; soft, very friable, nonsticky, and nonplastic; common very fine and few medium roots; many very fine and fine irregular pores; 50 percent gravel, 10 percent cobbles and 10 percent stones; slightly acid (pH 6.2).
TYPE LOCATION: Klickitat County, Washington; about 3 miles southwest of Glenwood; 1,000 feet north and 2,000 feet west of the southeast corner of section 19, T. 6 N., R. 12 E. Latitude 45 degrees, 59 minutes, 21 seconds N. and Longitude 121 degrees, 20 minutes, 45 seconds W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 47 to 50 degrees F. The soil moisture control section is usually moist, but is dry in all parts for 75 to 90 consecutive days following summer solstice. The umbric epipedon is 10 to 16 inches thick. The 0 to 40 inch particle-size control section has an estimated moist bulk density of 0.65 to 0.90 g/cc, volcanic glass content of 30 to 60 percent, acid oxalate extractable aluminum plus one-half iron of 1.0 to 2.0 percent, phosphate retention of 75 to 98 percent and 15 bar water retention of 8 to 12 percent.
The A horizon has hue of 7.5YR or 10YR, value of 3 to 4 dry, 2 or 3 moist and chroma of 2 or 3 dry and moist. Some pedons have a gravelly surface layer. Reaction is moderately acid or slightly acid.
The Bw horizon has hue of 7.5YR or 10YR, value of 4 to 6 dry, 3 to 5 moist and chroma of 4 to 6 dry and moist. Texture is gravelly ashy fine sandy loam or gravelly ashy sandy loam. It has 15 to 30 percent gravel and 0 to 5 percent cobbles. Reaction is slightly acid or neutral.
The BC horizon has hue of 7.5YR or 10YR, value of 4 to 6 dry, 3 to 5 moist and chroma of 4 to 6 dry and moist. Texture is very gravelly ashy fine sand, very gravelly ashy fine sandy loam or extremely gravelly ashy fine sandy loam. It has 40 to 60 percent gravel, 5 to 10 percent cobbles and 0 to 10 percent stones. Reaction is slightly acid or neutral.
COMPETING SERIES: This is the Husum series. Husum soils are dry for 45 to 60 consecutive days and have a sandy-skeletal discontinuity at a depth of 24 to 36 inches.
GEOGRAPHIC SETTING: Guler soils are on mountain footslopes adjacent to valley floors at elevations of 1,800 to 2,000 feet. Slopes are 0 to 20 percent. The soils formed in volcanic ash and colluvium from basalt. Summers are warm and dry; winters are cool and moist, with snow cover from December through March. The mean annual precipitation is 33 to 40 inches. The average annual temperature is 27 degrees F. and the average July temperature is 66 degrees F. The mean annual temperature is 46 to 48 degrees F. The frost-free season is 75 to 95 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Conboy, Firoke, Glen, McCumber and Segidal soils. Conboy and Segidal soils have an aquic moisture regime. Firoke and McCumber soils are frigid. Glen soils are ashy.
DRAINAGE AND PERMEABILITY: Well drained; slow to medium runoff; moderately rapid permeability.
USE AND VEGETATION: These soils are used for timber production, livestock grazing and wildlife habitat. Areas of small extent are used for hay and pasture. Vegetation is mainly ponderosa pine, with an understory of antelope bitterbrush, Idaho fescue, elk sedge, hawkweed, rabbitbrush, goldenweed, snowbrush ceanothus, mountain brome and needlegrass.
DISTRIBUTION AND EXTENT: Klickitat County, Washington; MLRA 6. The series is of small extent.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Klickitat County, Washington, 1941; Yakima Indian Reservation.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon - the zone from 1to 12 inches
Cambic horizon - the zone from 12 to 61 inches.
Particle-size control section - the zone from 1 to 41 inches
Andic soil properties - the zone from 1 to 61 inches
Depth to diagnostic horizons and features are measured from the top of the first mineral layer.
12/2005 This series originally set up within the Klickitat County soil survey until boundary change with Yakima Indian Reservation soil survey in 2003.
ADDITIONAL DATA: Partial laboratory data are available for this pedon, NSSL pedon number 87P0064.