LOCATION BURLINGTON OREstablished Series
TAXONOMIC CLASS: Sandy, mixed, mesic Entic Ultic Haploxerolls
TYPICAL PEDON: Burlington fine sandy loam, cultivated. (Colors are for moist soil unless otherwise noted.)
Ap1--0 to 4 inches; very dark grayish brown (10YR 3/2) fine sandy loam, dark grayish brown (10YR 4/2) dry; weak fine and medium subangular blocky structure; soft, friable, nonsticky and nonplastic; common very fine roots; many irregular pores; slightly acid (pH 6.2); abrupt smooth boundary. (3 to 6 inches thick)
Ap2--4 to 12 inches; dark brown (10YR 3/3) fine sandy loam, brown (10YR 5/3) dry; weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; common very fine roots; many irregular pores; slightly acid (pH 6.4); clear smooth boundary. (6 to 9 inches thick)
C1--12 to 48 inches; dark brown (10YR 4/3) loamy fine sand, brown (10YR 5/30 dry; massive; soft, very friable; few very fine roots; many irregular pores; neutral (pH 6.6); gradual smooth boundary. (30 to 40 inches thick)
C2--48 to 60 inches; dark yellowish brown (10YR 4/4) loamy fine sand, yellowish brown (10YR 5/4) dry; single grained; loose; many irregular pores; neutral (pH 6.6).
TYPE LOCATION: Multnomah County, Oregon; Sauvie Island, about one mile northwest of the Reeder Road Junction; NW1/4 SW1/4 section 8, T. 2 N., R. 1 W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature ranges from 54 degrees to 56 degrees F. The soils are usually moist and are dry for more than 45 consecutive days between depths of 7 and 20 inches. The mollic epipedon ranges from 10 to 14 inches thick.
The A horizon has value of 4 or 5 dry and chroma of 2 or 3 moist and dry. It commonly is fine sandy loam but ranges to sandy loam. It has weak very fine to medium subangular blocky structure.
The C horizon has value of 5 or 6 dry, and chroma of 2 through 4 moist and dry. It commonly is loamy fine sand but ranges to fine sand in some pedons. It is single grained or massive.
COMPETING SERIES: This is the Hiskey series. Hiskey soils have loamy coarse sand or sand in the control section and have moist value of 3 in the C horizon.
GEOGRAPHIC SETTING: The Burlington soils are on terraces along the lower Columbia River and its tributaries at elevations of 20 to 50 feet. Slopes range from 0 to 15 percent. The soils formed in alluvium of mixed origin. The winters are cool and moist and summers warm and dry. The mean January temperature is about 40 degrees F.; mean July temperature is about 67 degrees F.; and the mean annual temperature is about 53 degrees F. The frost-free season is about 165 to 210 days. The mean annual precipitation ranges from 40 to 65 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Sauvie soils. Sauvie soils are fine-silty, poorly drained and mottled throughout.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow to medium runoff; rapid permeability.
USE AND VEGETATION: These soils are used for improved pasture, nursery stock, fruit production and truck crops. Where this soil is not cultivated, vegetation is ash, Douglas-fir, willow, rose, blackberry and grasses and forbs.
DISTRIBUTION AND EXTENT: Along the Columbia River in Multnomah County, Oregon. The soil is inextensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Multnomah County, Oregon, 1919.