LOCATION FIANDER WAEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Typic Natraquolls
TYPICAL PEDON: Fiander silt loam - rangeland. (Colors are for dry soil unless otherwise stated.)
A11--0 to 3 inches; grayish brown (10YR 5/2) silt loam, very dark brown (10YR 2/2) moist; weak thin platy structure; soft, friable, nonsticky and slightly plastic; many roots; slight effervescence; mildly alkaline (pH 7.8); abrupt smooth boundary. (1 to 5 inches thick)
A12--3 to 4 inches; grayish brown (10YR 5/2) silt loam, very dark grayish brown (10YR 3/2) moist; moderate medium platy structure; slightly hard, firm, slightly sticky and slightly plastic; common roots; many fine pores; slight effervescence; moderately alkaline (pH 8.0); abrupt broken boundary. (0 to 2 inches thick)
B21t--4 to 12 inches; grayish brown (10YR 5/2) silty clay loam, very dark grayish brown (10YR 3/2) moist; the ped interfaces are very dark brown (10YR 2/2) moist; strong medium prismatic structure; very hard, very firm, sticky and plastic; common roots mostly matted on the interfaces of peds; few fine pores; thin continuous clay films on surfaces of peds; strong effervescence; very strongly alkaline (pH 9.4); gradual wavy boundary. (4 to 10 inches thick)
B22tca--12 to 24 inches; brown (10YR 5/3) heavy silt loam, dark brown (10YR 3/3) moist; common medium faint mottles; moderate medium subangular blocky structure; hard, firm, sticky and plastic; common roots; common fine pores; thin continuous clay films on surfaces of peds; disseminated and segregated lime; violent effervescence; very strongly alkaline (pH 9.4); gradual wavy boundary. (0 to 15 inches thick)
B3ca--24 to 35 inches; brown (10YR 5/3) heavy silt loam, dark brown (10YR 3/3) moist; common medium faint mottles; moderate medium subangular blocky structure; hard, firm, sticky and plastic; few roots; common fine pores; disseminated and segregated mycelial lime; strong effervescence; strongly alkaline (pH 8.8); gradual wavy boundary. (3 to 20 inches thick)
C--35 to 60 inches; brown (10YR 5/3) silt loam, dark brown (10YR 3/3) moist; common medium faint mottles; massive; slightly hard, friable, sticky and plastic; few roots; common fine pores; approximately 3 percent rounded pebbles and cobbles; mildly alkaline (pH 7.6).
TYPE LOCATION: Yakima County, Washington; 250 feet northeast of Highway 22 and Marion Drain, in the southwest 1/4, northeast 1/4, southwest 1/4 of section 29, T. 10 N., R. 21 E., W.M.
RANGE IN CHARACTERISTICS: The solum is 20 to 40 inches thick. Mean annual soil temperature at a depth of 20 inches ranges from 50 degrees to 54 degrees F. These soils are saturated at some season and are continuously moist in some part between depths of 4 and 12 inhes. The particle-size control section contains 24 to 35 percent clay and calcium carbonate equivalent of 2 to 10 percent.
The A11 horizon has value of 4 or 5 dry, 2 or 3 moist, and chroma of 1 or 2 dry or moist. The A12 horizon has value of 5 or 6 dry, 3 or 4 moist, and chroma of 1 or 2 dry or moist. The A horizon is mildly alkaline to very strongly alkaline.
The upper part of the B2t horizon has value of 4 or 5 dry, 2 or 3 moist, and chroma of 2 or 3 dry or moist. The lower part of the B2t horizon has value of 4, 5, or 6 dry and 2, 3, or 4 moist, and chroma of 2 or 3. It is heavy silt loam or silty clay loam. The B2t horizon has moderate or strong prismatic structure. It is strongly alkaline or very strongly alkaline.
The C horizon has value of 5 or 6 dry, 3 or 4 moist, and chroma of 2 or 3 dry or moist. It is mildly alkaline to very strongly alkaline. Below a depth of 40 inches textures range from silt loam to loamy very fine sand.
COMPETING SERIES: This is the Airport series. Airport soils have a calcium carbonate equivalent of 25 to 50 percent in the Bca horizon.
GEOGRAPHIC SETTING: Fiander soils are on low terraces and bottomlands at elevations of 700 to 900 feet. Slopes are 0 to 5 percent. These soils formed in alluvium. They are in a climate with warm, dry summers and cool, moist winters. Mean annual precipitation is 6 to 9 inches. Average January temperature is 29 degrees F., average July temperature is 73 degrees F., and average annual temperature is 51 degrees F. Frost-free season is 130 to 180 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Umapine, Toppenish, and Track series. These soils lack a natric horizon.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained; very slow runoff; slow permeability.
USE AND VEGETATION: Used for range. Vegetation is strongly alkaline tolerant plants such as greasewood, saltgrass, and giant wildrye. Some areas are barren between greasewood plants. If irrigated and in a favorable stage of reclamation, grass and legume pasture and grain are grown.
DISTRIBUTION AND EXTENT: Yakima Valley in Yakima County, Washington. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Yakima County, Washington, 1947.