LOCATION KAIDERS WAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Ultic Haploxeralfs
TYPICAL PEDON: Kaiders cobbly loam - forested on a 15 percent south-facing backslope at an elevation of 2,440 feet. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 1 inch; slightly decomposed needles and twigs.
A--1 to 7 inches; reddish brown (5YR 5/4) cobbly loam, dark reddish brown (2.5YR 3/3) moist; weak fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and few fine roots; many very fine irregular pores; 10 percent gravel and 20 percent cobbles; neutral (pH 6.6); clear smooth boundary. (3 to 6 inches thick)
BA--7 to 21 inches; reddish brown (5YR 5/4) gravelly loam, dark reddish brown (2.5YR 3/4) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many fine and few very fine roots; many very fine irregular pores; 15 percent gravel, 5 percent cobbles and 20 percent basalt paragravel; neutral (pH 6.6); gradual smooth boundary. (6 to 14 inches thick)
Bt1--21 to 32 inches; yellowish red (5YR 5/6) gravelly loam, dark red (2.5YR 3/6) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few fine and medium roots; many very fine irregular and common fine tubular pores; few faint clay films lining pores; 20 percent gravel and 10 percent basalt paragravel; slightly acid (pH 6.4); gradual smooth boundary. (10 to 22 inches thick)
Bt2--32 to 43 inches; yellowish red (5YR 5/6) gravelly loam, dark red (2.5YR 3/6) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few very fine and fine roots; many very fine irregular and common fine tubular pores; few faint clay films on faces of peds and lining pores; 15 percent gravel, 5 percent cobbles and 20 percent basalt paragravel; slightly acid (pH 6.2); clear smooth boundary. (0 to 12 inches thick)
BCt--43 to 61 inches; yellowish red (5YR 5/6) very gravelly loam, red (2.5YR 4/6) moist; weak very fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few fine roots; many very fine irregular pores; few faint clay films on faces of peds and lining pores; 40 percent gravel, 10 percent cobbles and 20 percent basalt paragravel; moderately acid (pH 6.0).
TYPE LOCATION: Klickitat County, Washington; about 15 miles northwest of Goldendale, 2,500 feet north and 3,000 feet west of the southeast corner of section 33, T. 6 N., R. 14 E.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 45 to 47 degrees F. The soil moisture control section is usually moist, but is dry in all parts for 60 to 75 consecutive days following summer solstice. The particle-size control section has 10 to 30 percent clay,15 to 35 percent rock fragments and 10 to 25 percent pararock fragments. Below the particle-size control section rock fragments range from 35 to 70 percent including 0 to 15 percent cobbles.
The A horizon has hue of 5YR or 7.5YR, value of 4 or 5 dry and chroma of 2 to 4 dry and moist. Reaction is slightly acid or neutral. Some pedons have a stony surface layer.
The BA horizon is slightly acid or neutral.
The Bt horizon has hue of 2.5YR to 7.5YR, value of 5 or 6 dry, 3 or 4 moist and chroma of 3 to 6 dry and moist. Texture is gravelly loam or gravelly clay loam. Reaction is moderately acid to neutral.
The BCt horizon has hue of 5YR or 7.5YR, value of 5 or 6 dry and chroma of 4 through 6 dry and moist. It is very gravelly loam or extremely gravelly loam. Reaction is moderately acid to neutral.
COMPETING SERIES: These are the Cavendish, Eaglelake, Fugawee, Martis, Tahoma, Walfa and Wintoner series. Bograp soils have 27 to 35 percent clay throughout the particle-size control section. Cavendish soils lack soft weathered basalt fragments in the profile and are not influenced by volcanic ash. Eaglelake soils are dry for more than 100 consecutive days during summer and fall. Fugawee and Parrego msoils are 20 to 40 inches deep to a paralithic contact. Martis soils have an umbric epipedon. Tahoma soils are strongly acid or very strongly acid in the Bt horizon. Walfa soils are dry for 90 consecutive days after the summer solstice and are stratified throughoput. Wintoner soils have a hue of 10YR and less than 15 percent rock fragments in the argillic horizon.
GEOGRAPHIC SETTING: Kaiders soils are on mountains and foothills at elevations of 1,800 to 3,200 feet. Kaiders soils formed in colluvium from basalt and minor amounts of volcanic ash and loess. Summers are warm and dry and winters are cold and moist. The mean annual precipitation is 25 to 35 inches. The average January temperature is 26 degrees F. and the average July temperature is 64 degrees F. The mean annual temperature is 43 to 46 degrees F. The frost-free season is 90 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Dalig, Fanal, Gunn, Para, Presher, Quiden, Tigit, Wahoo and Yedlick series. Dalig, Gunn, Para, Quiden, Tigit, and Yedlick soils are mesic. In addition, Fanal soils are coarse-loamy. Wahoo soils are less than 20 inches deep to a lithic contact.
DRAINAGE AND PERMEABILITY: Well drained; medium to rapid runoff; moderate permeability.
USE AND VEGETATION: These soils are used mainly for timber production, grazable woodland and wildlife habitat. Vegetation is Douglas-fir, ponderosa pine, and Oregon white oak, with an understory of western hazel, deerbrush ceanothus, redstem ceanothus, Oregon-grape, elk sedge, Idaho fescue, and squawcarpet.
DISTRIBUTION AND EXTENT: Klickitat County, Washington; MLRA 6. The series is moderately extensive.
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 1 to 7 inches
Argillic horizon - the zone from 21 to 61 inches
Particle-size control section - the zone from 21 to 41 inches
The Oi horizon was originally described as 0.5 inch thick. The depth was increased to 1 inch for simplicity of horizon measurement.
Depth to diagnostic horizons and features are measured from the top of the first mineral layer.
ADDITIONAL DATA: Partial laboratory data available for this soil - sample number S76WA-039-1.