LOCATION REINHART                OR

Established Series
Rev. MHF/CDJ/RWL
06/2011

REINHART SERIES

The Reinhart series consists of shallow, well drained soils that formed in colluvium derived from highly sheared and weathered metasedimentary rock. Reinhart soils occur in open grassland areas on narrow ridgetops and side slopes of coastal hills and mountain. Slopes are 0 to 60 percent. The mean annual precipitation is about 90 inches and the mean annual temperature is about 50 degrees F.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, isomesic Lithic Humudepts

TYPICAL PEDON: Reinhart gravelly clay loam, pasture. (Colors are for moist soil unless otherwise noted.)

A--0 to 2 inches; very dark gray (10YR 3/1) gravelly clay loam, dark grayish brown (10YR 4/2) dry; weak fine granular structure; slightly hard, friable, slightly sticky and slightly plastic, weakly smeary; many fine and very fine and few medium and coarse roots; many fine and very fine irregular pores; 20 percent gravel and 5 percent cobbles; very strongly acid (pH 4.9); clear smooth boundary. (2 to 4 inches thick)

BA--2 to 8 inches; very dark grayish brown (10YR 3/2) very gravelly clay loam, dark brown (10YR 4/3) dry; moderate very fine and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic, weakly smeary; many fine and very fine and few medium and coarse roots; many fine and very fine continuous tubular pores; 35 percent gravel and 5 percent cobbles; strongly acid (pH 5.3); clear wavy boundary. (2 to 6 inches thick)

Bw1--8 to 13 inches; dark brown (10YR 3/3) very gravelly clay loam, yellowish brown (10YR 5/4) dry; moderate very fine and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common fine and very fine and few medium and coarse roots; many fine and very fine continuous tubular pores; 40 percent gravel and 10 percent cobbles; strongly acid (pH 5.3); abrupt wavy boundary.

Bw2--13 to 18 inches; dark brown (10YR 3/3) extremely gravelly clay loam, yellowish brown (10YR 5/4) dry; moderate very fine and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few medium and coarse roots; many very fine continuous tubular pores; 55 percent gravel and 15 percent cobbles; strongly acid (pH 5.1). (Combined thickness of the Bw horizon ranges from 8 to 10 inches)

R--18 inches; fractured sandstone.

TYPE LOCATION: Curry County, Oregon; located about 1750 feet south and 400 feet east of the northwest corner of section 35, T. 39 S., R. 14 W., W. M. (Latitude 42 degrees, 9 minutes, 33 seconds N, Longitude 124 degrees, 20 minutes, 6 seconds W)

RANGE IN CHARACTERISTICS: The mean annual soil temperature is 50 to 54 degrees F., the mean summer soil temperature is 54 to 57 degrees F., and the mean winter soil temperature is 45 to 50 degrees F. The soils are usually moist and are dry for less than 45 consecutive days in all parts between depths of 4 and 12 inches in the four months following the summer solstice. The difference between mean summer and mean winter soil temperature varies from 5 to 9 degrees F. The particle-size control section is 30 to 35 percent clay and 40 to 80 percent rock fragments. Depth to a lithic contact is 10 to 20 inches. The solum is very strongly or strongly acid throughout. It has a P-retention of 60 to 85 percent and a moist bulk density of 0.9 to 1.0 g/cc. Hue is 10YR or 7.5YR. The umbric epipedon is 10 to 20 inches thick and inludes all or part of the Bw horizon.

The A horizon has value of 2 or 3 moist, 3 or 4 dry and chroma of 1 or 2 moist and dry. It is gravelly clay loam with 27 to 35 percent clay. It has 15 to 25 percent gravel and 0 to 5 percent cobbles. Organic matter is 10 to 15 percent.

The BA horizon, when present, has color similar to the A horizon. It is very gravelly clay loam or extremely gravelly clay loam with 30 to 35 percent clay. It has 35 to 45 percent gravel and 5 to 10 percent cobbles.

The Bw horizon has value of 3 or 4 moist, 4 or 5 dry and chroma of 3 or 4 moist and dry. It is very gravelly clay loam or extremely gravelly clay loam with 30 to 35 percent clay. It has 35 to 60 percent gravel and 5 to 20 percent cobbles. It has acid oxalate aluminum plus 1/2 iron of 1 to 2 percent.

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING: Reinhart soils are in open grassland areas on metastable narrow ridgetops and side slopes of coastal hills and mountains. Slopes are 0 to 60 percent. The soils formed in colluvium derived from highly sheared and weathered metasedimentary rock of the Otter Point Formation. Elevation is 200 to 1,300 feet. The climate is humid, characterized by cool wet winters and cool moist summers with fog. A strong marine influence limits the diurnal and annual range of temperature. The mean annual precipitation is 85 to 95 inches. The mean annual temperature is 48 to 52 degrees F. The frost-free period is 210 to 270 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Hooskanaden, Loneranch, Reedsport, Sebastian, Shigh, and Whaleshead soils. Hooskanaden soils are very deep, clayey, and somewhat poorly drained. Loneranch soils are fine-loamy, somewhat poorly drained, and 20 to 40 inches deep to a lithic contact. Reedsport soils are fine-loamy and 20 to 40 inches deep to a paralithic contact. Sebastian soils have serpentinitic mineralogy. Shigh soils are very deep, clayey, poorly drained, and have an albic horizon at the soil surface. Whaleshead soils are very deep.

DRAINAGE AND PERMEABILITY: Well drained; moderately slow permeability.

USE AND VEGETATION: These soils are used for pasture, water supply, and wildlife habitat. Native vegetation is red alder, western hazel, salmonberry, western swordfern, western brackenfern, Pacific poison oak, velvetgrass, and bentgrass.

DISTRIBUTION AND EXTENT: Coastal hills and mountains of southwestern Oregon; MLRA 4A. The series is inextensive.

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

SERIES ESTABLISHED: Curry County, Oregon, 1995.

REMARKS: Diagnostic horizons and features in this pedon include:

Umbric epipedon - from the surface to a depth of 18 inches (A, BA, Bw1, Bw2 horizons).

Lithic feature - 18 inches to lithic contact. (R)

Andic feature - acid oxalate aluminum plus 1/2 iron of 1.09 from 8 to 18 inches. (Bw1, Bw2 horizons)

ADDITIONAL DATA: Reference samples from pedon 89P 198, samples 89P1203-1206 from Curry County, Oregon sampled by NSSL, Lincoln, NE, 12/89

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National Cooperative Soil Survey
U.S.A.