LOCATION DALIG WAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
TYPICAL PEDON: Dalig loam - forested on an 11 percent southwest-facing backslope at an elevation of 2,280 feet. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 1 inches; needles, leaves, and twigs.
Oe--1 to 2 inches; decomposed organic material.
A--2 to 6 inches; reddish brown (5YR 5/3) loam, dark reddish brown (5YR 3/3) moist; weak fine and very fine granular structure; soft, friable, slightly sticky and nonplastic; many very fine and common fine roots; many very fine irregular pores; 10 percent gravel; slightly acid (pH 6.2); clear smooth boundary. (3 to 6 inches thick)
BA--6 to 17 inches; light brown (7.5YR 6/4) loam, dark reddish brown (5YR 3/3) moist; weak fine and very fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common fine and very fine and few medium roots; many very fine irregular and many very fine tubular pores; few gravel; slightly acid (pH 6.2); gradual; smooth boundary. (8 to 14 inches thick)
Bt1--17 to 31 inches; light brown (7.5YR 6/4) clay loam, brown (7.5YR 4/4) moist; weak fine and very fine subangular blocky structure; hard, firm, moderately sticky and moderately plastic; common very fine and few fine and medium roots; many very fine irregular and common fine and very fine tubular pores; few faint clay films on faces of peds and in pores; few gravel; slightly acid (pH 6.2); gradual smooth boundary. (12 to 16 inches thick)
Bt2--31 to 52 inches; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/4) moist; moderate fine and very fine subangular blocky structure; hard, firm, moderately sticky and very plastic; few fine roots; many very fine irregular and common fine tubular pores; few distinct clay films on faces of peds and in pores; 5 percent gravel; moderately acid (pH 6.0); gradual smooth boundary. (15 to 22 inches thick)
BCt--52 to 62 inches; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/4) moist; weak fine and very fine subangular blocky structure; hard, firm, moderately sticky and moderately plastic; few very fine roots; common very fine irregular pores; few faint clay films on faces of peds and in pores; 20 percent paragravel; moderately acid (pH 6.0).
TYPE LOCATION: Klickitat County, Washington; about 5 miles southeast of Glenwood; 1,500 feet north and 1,500 feet east of the southwest corner of section 35, T. 6 N., R. 13 E.
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 60 to 75 consecutive days. The particle-size control section has 18 to 35 percent clay, 0 to 5 percent gravel and 0 to 15 percent paragravel.
The A and BA horizons have hue of 5YR or 7.5YR, value of 5 or 6 dry and chroma of 2 or 3 dry and moist.
The Bt horizon has hue of 5YR or 7.5YR, value of 5 or 6 dry and 3 or 4 moist. Texture is loam or clay loam. Reaction is slightly acid or moderately acid.
The BCt horizon has hue of 5YR or 7.5YR, value of 4 to 6 dry and 3 or 4 moist. Texture is clay loam or gravelly clay loam. Paragravel range from 20 to 50 percent. Gravel range from 0 to 20 percent.
COMPETING SERIES: These are the Beal, Boomer, Casabonne, Cherryhill, Cle Elum, Cohasset, Crozier, Fives, Fordcreek (T), Gunn, Holland, Hood, Hotaw, Latourell, Lettia, Norling, Para (T), Rosehaven, Sanhedrin, Teanaway, Tigit, Ulhalf, Varelum, and Wohly series. Beal soils are dry for 45 to 60 consecutive days, have hue of 10YR, and are moderately well drained. Boomer, Casabonne, Cohasset, and Holland soils have a mean annual soil temperature of more than 52 degrees F. Cherryhill, Hood, Latourell, and Varelum soils have a 10YR hue throughout. Cle Elum, Crozier, Hotaw, Tigit, and Wohly soils have a paralithic or a lithic contact at a depth of 20 to 40 inches. Fives soils are strongly acid below a depth of about 17 inches. Fordcreek soils are dry for 75 to 110 consecutive days, have a paralithic contact at a depth of 40 to 60 inches, and have 5 to 25 percent rock fragments in the particle-size control section. Gunn soils are dry for 75 to 90 consecutive days. Lettia soils have a solum that is 40 to 60 inches thick over weathered rock and have chroma of more than 4 in the argillic horizon. Norling soils are dry for 45 to 60 consecutive days, have a paralithic contact at 30 to 40 inches and have 5 to 25 percent rock fragments in the particle-size control section. Para soils are dry in the moisture control section for 45 to 60 consecutive days. Rosehaven soils have chroma of more than 4 in the lower part of the lower part of the argillic horizon and have a mean annual soil temperature of 52 to 57 degrees F. Teanaway soils have hue of 10YR in the A and E horizons. Sanhedrin soils are 15 to 35 percent rock fragments in the particle-size control section and have a mollic epipedon. Ulhalf soils are dry for more than 90 consecutive days, have a paralithic contact at 40 to 60 inches, and have 20 to 35 percent rock fragments in the particle-size control section. The Musick and Speaker soils have a similar classification except for an active cation-exchange activity family class. Musick soils have a 2.5YR hue in the argillic horizon. Speaker soils are 20 to 40 inches to a paralithic contact.
GEOGRAPHIC SETTING: Dalig soils are on hillsides, plateaus and benches at elevations of 1,000 to 2,500 feet. Slopes are 2 to 65 percent. Dalig soils formed in loess and residuum from basalt. Summers are warm and dry, winters are cool and moist with snow cover from December through April. The mean annual precipitation is 30 to 35 inches. The average January temperature is 27 degrees F. and the average July temperature is 65 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, Leidl, Wahoo, Yedlick, and the competing Gunn, Para and Tigit soils. KAiders, Leidl, and Yedlick soils are loamy-skeletal. Tigit soils have a paralithic contact at 20 to 40 inches. Wahoo soils are loamy-skeletal and are 10 to 20 inches deep to a lithic contact.
DRAINAGE AND PERMEABILITY: Well drained; slow to medium runoff; moderately slow permeability.
USE AND VEGETATION: These soils are used mainly for timber production, grazeable woodland, and wildlife habitat. Native vegetation is mainly Douglas-fir, ponderosa pine and Oregon white oak with an understory of creambush oceanspray, willow, western hazel, deerbrush ceanothus, common snowberry, Oregon-grape, and elk sedge.
DISTRIBUTION AND EXTENT: Klickitat County, Washington; MLRA 6. The series is of small extent.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Klickitat County, Washington, 2003.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the mineral surface to 15 inches
Argillic horizon - the zone from 15 to 60 inches. The argillic horizon has less than 20 percent decrease from the maximum in clay at 60 inches.
Particle-size control section - the zone from 17 to 37 inches
Depth to diagnostic horizons and features are measured from the top of the first mineral layer.