LOCATION HENLEY OR+CAEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Aquic Haplodurids
TYPICAL PEDON: Henley loam, cultivated. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 5 inches; dark grayish brown (10YR 4/2) loam, light gray (10YR 7/1) dry; weak fine granular structure; soft, friable, slightly sticky and slightly plastic; few very fine roots; many very fine pores; strongly effervescent; SAR is 52 and EC is 6; strongly alkaline (pH 8.9); clear smooth boundary. (3 to 10 inches thick)
Akz--5 to 11 inches; very dark grayish brown (10YR 3/2) loam, light brownish gray (10YR 6/2) dry; weak coarse prismatic structure; hard, friable, slightly sticky and slightly plastic; few very fine roots; many very fine tubular pores; strongly effervescent; SAR is 17 and EC is 2; strongly alkaline (pH 8.9); clear smooth boundary. (3 to 10 inches thick)
Bkz1--11 to 20 inches; dark brown (10YR 4/3) loam, light gray (10YR 7/2) dry; weak coarse prismatic structure parting to weak medium subangular blocky; very friable, slightly sticky and slightly plastic; few very fine roots; many very fine tubular pores; strongly effervescent; SAR is 14 and EC is 2; strongly alkaline (pH 8.5); clear smooth boundary. (5 to 10 inches thick)
Bkz2--20 to 25 inches; dark brown (10YR 4/3) fine sandy loam, light gray (10YR 7/2) dry; weak fine subangular blocky structure; very friable, slightly sticky and nonplastic; few very fine roots; few very fine tubular pores; strongly effervescent; SAR is 14 and EC is 2; strongly alkaline (pH 8.5); clear wavy boundary. (3 to 10 inches thick)
BCk--25 to 36 inches; brown (10YR 5/3) sandy loam, light gray (10YR 7/1) dry; massive; very friable, nonsticky and nonplastic; few very fine roots; many very fine tubular pores; firm, weakly cemented aggregates in upper 6 inches; strongly effervescent; SAR is 8 and EC is 1; moderately alkaline (pH 8.4); abrupt smooth boundary. (0 to 12 inches thick)
2Ckqm--36 to 60 inches; dark grayish brown (10YR 4/2) duripan; plate-like; indurated; continuous opaline laminar cap at top of duripan; strongly effervescent; moderately alkaline (pH 8.4).
TYPE LOCATION: Klamath County, Oregon; about 1-1/2 miles east of the town of Dairy; 1,900 feet west and 1,600 feet south of the NE corner section 35, T. 38 S., R. 11-1/2 E.
RANGE IN CHARACTERISTICS: Mean annual soil temperature ranges form 48 to 50 degrees F. Sodium absorption ratio exceeds 13 percent in all or part of the upper 20 inches of the profile, decreasing with depth below 20 inches. Conductivity is 2 to 8 mmhos per cubic centimeter at some depth above the duripan. Depth to the indurated duripan ranges from 20 to 40 inches.
The A horizon has value of 3 or 4 moist, 6 or 7 dry, and chroma of 1 or 2 moist and dry. It is strongly or very strongly alkaline.
The B horizon has hue of 10YR or 2.5Y, value of 3 through 5 moist, 6 through 8 dry, and chroma of 1 through 3 moist and 1 or 2 dry. This horizon is loam, silt loam, fine sandy loam, or sandy loam and averages 10 to 18 percent clay. This horizon is moderately or strongly alkaline.
The duripan is platy, about 5 to 36 inches thick, and has an indurated laminar opaline cap and vertical coatings and laminar layers of opal. It is moderately or strongly alkaline.
COMPETING SERIES: There are no other series in this family.
GEOGRAPHIC SETTING: Henley soils are on low terraces. Elevations are 4,050 to 4,800 feet. The soils formed in mixed alluvium weathered from diatomite, tuff, basalt, and ash. The climate is semiarid with warm dry summers and cold moist winters. The mean annual precipitation is 10 to 15 inches. The mean January temperature is about 28 degrees F.; the mean July temperature is about 67 degrees F.; and the mean annual temperature is about 46 to 49 degrees F. The frost-free period is 50 to 110 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Calimus, Fordney, Hosley, and Laki soils. All of these soils have mollic epipedons. Calimus soils are also well drained, nonsodic, and lack duripans. Fordney soils have sandy control sections and are deep. Hosley soils have natric horizons. Laki soils lack duripans and exchangeable sodium percentages are erratic throughout the profile.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained; very slow runoff; moderate permeability through the B horizon, very slow permeability through the duripan.
USE AND VEGETATION: Henley soils are used for irrigated pasture, barley, and alfalfa. Many areas are used for homesites. Noncultivated areas mostly have a plant cover of inland saltgrass, alkali greasewood, and green rabbitbrush.
DISTRIBUTION AND EXTENT: Lake basins in South-central Oregon and Northern California. The soils are moderately extensive.
MLRA OFFICE RESPONSIBLE: Reno, Nevada
SERIES ESTABLISHED: Klamath County, Oregon, 1977.
REMARKS:
The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Reno MLRA office, without review of the soil series property data. The remainder of this document has not been updated.
ADDITIONAL DATA: Soil characterization data on two profiles (S67 Oreg. 18-2 and 18-5) reported in Riverside Laboratory report for Henley soil samples in Klamath County, Oregon, 1967. Profile 18-5 is the type location.
NSTH 17, RECLASSIFICATION ONLY, 3/95
REMARKS: In 1986, the parhole-size class (family) was changed from fine-loamy to coarse-loamy. By field texture and PSDA, the clay content is 10 to 18 percent. However, laboratory data indicate that these soils have a high 15-bar water to clay ratio and 2.5 times the 15-bar water place the soils in a fine particle-size class. The high 15-bar water content is attributed to kind of parent material of which diatoms make up an appreciable part. The soil behavior is more like a coarse-loamy particle-size class; therefore, the placement is made on the basis of field estimates and PSDA.
REMARKS:
The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Reno MLRA office, without review of the soil series property data. The remainder of this document has not been updated.