LOCATION GARDINER                OR

Established Series
Rev. ACT/TDT
06/2011

GARDINER SERIES

The Gardiner series consists of very deep, well drained soils on flood plains, stream levees and low stream terraces. They formed in coarse-textured, mixed alluvium. Slopes range from 0 to 3 percent. Mean annual precipitation is about 75 inches, and the mean annual temperature is about 52 degrees F.

TAXONOMIC CLASS: Mixed, mesic Typic Udipsamments

TYPICAL PEDON: Gardiner fine sandy loam - in a pasture. (Colors are for moist soil unless otherwise noted.)

Ap--0 to 8 inches; dark brown (10YR 3/3) fine sandy loam, brown (10YR 5/3) dry; specks of grayish brown and light brownish gray uncoated sand grains; weak, fine and medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; many fine roots; many very fine and fine irregular pores; strongly acid; clear wavy boundary. (7 to 9 inches thick)

C--8 to 60 inches; dark yellowish brown (10YR 3/4) loamy fine sand, yellowish brown (10YR 5/4) dry; many specks of grayish brown, light brownish gray, and light gray uncoated sand grains; single grained; loose; common roots at top decreasing markedly with increasing depth; many very fine and fine irregular pores; strongly acid.

TYPE LOCATION: Douglas County, Oregon; 200 yards north of bridge across North Fork of Smith River and 100 yards east of road; 525 feet west and 1,890 feet north of SE corner of section 31, T. 10W., R. 20 S.

RANGE IN CHARACTERISTICS: The soils are usually moist and are dry for less than 45 consecutive days between depths of 12 and 35 inches within the 4 month period following summer solstice. The mean annual soil temperature is about 54 degrees F. The soil is strongly or moderately acid. There is an irregular decrease in organic carbon with depth.

The A horizon has value of 4 or 5 dry and chroma of 2 or 3 moist and dry. It is fine sandy loam or sandy loam.

The C horizon has value of 3 or 4 moist, 5 or 6 dry, and chroma of 3 or 4 moist and dry. It is loamy fine sand or loamy sand with few thin strata of finer materials in some pedons. In some pedons individual sand grains are black. Below depth of 40 inches the texture ranges from fine sand, gravelly sand to very gravelly sand.

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING: Gardiner soils are on stream levees on flood plains of small streams and rivers. Slopes are 0 to 3 percent. Elevations range from 0 to 150 feet. The soils formed in coarse-textured mixed alluvium derived from rocks high in ferromagnesium and low in quartz. The climate is humid and cool with a mean annual precipitation of 60 to 90 inches. Mean January temperature is 40 to 45 degrees F.; mean July temperature is 59 to 61 degrees F.; and the mean annual temperature is 50 to 54 degrees F. The frost-free period is 160 to 290 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Kirkendall, Nekoma, Quosatana, and Wasson soils. Kirkendall soils are fine-silty. Nekoma soils are coarse-loamy. Quosatana soils are fine-silty and are poorly drained. Wasson soils are coarse-loamy and are poorly drained.

DRAINAGE AND PERMEABILITY: Well-drained; slow runoff; rapid permeability. Frequent flooding for brief periods

USE AND VEGETATION: These soils are used for production of hay, pasture, and wildlife. Native vegetation is mostly grasses with some brush and hardwood trees.

DISTRIBUTION AND EXTENT: Stream bottoms in Western Oregon. The soil is inextensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon

SERIES ESTABLISHED: Tillamook County, Oregon, 1961.

REMARKS: Diagnostic horizons and other features;

Ochric epipedon

Irregular decrease in organic carbon with depth

This soil needs review to validate the psamment placement. The series was orginally classified as Fluventic Umbric Dystrochrepts. It was later changed to Typic Udipsamments base on lack of umbric epipedon, no cambic horizon and coarse textures. Based on flood plain location the coarse textures throughout the profile need to be confirmed. If finer texture occur the series should be classified as Mollic Udifluvents.

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National Cooperative Soil Survey
U.S.A.