LOCATION GRALIC NV

Established Series
Rev: DMC/GJS/GAM/JBF
01/2023

GRALIC SERIES

The Gralic series consists of deep, well drained soils that formed in colluvium derived from metavolcanic rocks. Gralic soils are on side slopes of mountains. Slopes are 8 to 75 percent. Mean annual precipitation is about 760 mm, and the mean annual temperature is about 3 degrees C.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, nonacid Typic Cryorthents

TYPICAL PEDON: Gralic extremely gravelly very fine sandy loam, wildlife habitat and rangeland. (Colors are for dry soil unless otherwise noted.)

Oi--0 to 3 cm; pine needles.

A1--3 to 10 cm; brown (10YR 5/3) extremely gravelly very fine sandy loam, dark brown (10YR 3/3) moist; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common very fine and fine, and few medium roots; few very fine, fine and medium tubular pores; 55 percent gravel; 5 percent cobbles and 15 percent stones; moderately acid (pH 5.8); abrupt smooth boundary. (5 to 8 cm thick)

A2--10 to 25 cm; light brownish gray (10YR 6/2) extremely gravelly very fine sandy loam, dark brown (10YR 3/3) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; common very fine, fine, and medium, and few coarse roots; few very fine and fine tubular pores; 60 percent gravel; 5 percent cobbles and stones; moderately acid (pH 6.0); clear smooth boundary. (8 to 23 cm thick)

C1--25 to 76 cm; pale brown (10YR 6/3) extremely gravelly very fine sandy loam, dark brown (10YR 3/3) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine, fine, and medium roots; few very fine interstitial pores; 60 percent gravel; 5 percent cobbles and stones; moderately acid (pH 6.0); clear irregular boundary. (46 to 76 cm thick)

C2--76 to 152 cm; light brownish gray (10YR 6/2) extremely gravelly very fine sandy loam, dark grayish brown (10YR 4/2) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine, fine, and medium roots; few very fine interstitial pores; 60 percent gravel; 5 percent cobbles and stones; slightly acid (pH 6.2).

TYPE LOCATION: Douglas County, Nevada; about 4.5 miles north and 2 miles west of Genoa, Nevada; about 2,300 feet west of the southeast corner of section l8., T. 14 N., R. 19 E.; USGS Glenbrook 7.5 minute topographic quadrangle; latitude 39 degrees 4 minutes 10 seconds N and longitude 119 degrees 53 minutes 20 seconds W; WGS84 Decimal Degrees 39.0694444 latitude, -119.8888889 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually moist November through June, dry between July and October.
Soil Temperature: 5.6 to 8.3 degrees C.
Average summer soil temperature: 7 to 8 degrees C.
Reaction: Moderately acid through neutral.

Particle-sze control section: Clay content: 15 to 20 percent.
Rock fragments: 40 to 75 percent, mainly gravel with 0 to 30 percent cobbles or stones in any one horizon.

A horizon
Value: 4 through 6 dry, 2 or 3 moist.
Chroma: 1 through 3.
Rock fragments: 35 to 60 percent gravel, 5 to 15 percent cobbles, 0 to 35 percent stones.

C horizon
Value: 5 through 7 dry, 3 through 5 moist.
Chroma: 1 through 3.
Texture: Very gravelly or extremely gravelly very fine sandy loam, fine sandy loam, or loam.

COMPETING SERIES: This is the Olnes series. Olnes soils have a large component of loess with more than 50 percent silt in the particle-size control section and a C horizon with hue of 2.5Y.

GEOGRAPHIC SETTING: Gralic series are on side slopes of mountains. Slopes are 8 to 75 percent. They formed in colluvium weathered from metavolcanic bedrock and gneiss. They are at elevations of about 7,500 to 9,500 feet. Mean annual precipitation is 510 to 1,020 mm; mean annual temperature is 2.2 to 4.4 degrees C.; and the frost-free season is 30 to 50 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Temo, Toiyabe, and Witefels soils. Temo and Toiyabe soils are less than 50 cm deep. Whitfels soils are less than 100 cm to bedrock.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; medium runoff; moderately rapid permeability; high saturated hydraulic conductivity.

USE AND VEGETATION: Used for wildlife habitat, and rangeland. The present vegetation is mainly California red fir, white pine and manzanita.

DISTRIBUTION AND EXTENT: Western Nevada. The soils are not extensive. MLRA 22A and 21.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Douglas County Area, Nevada, 1981.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the surface to 18 cm (Oi, A1, and part of the A2 horizons)

National Cooperative Soil Survey
U.S.A.