LOCATION NOISY CA

Established Series
Rev: BAL/ACF/ET
10/2016

NOISY SERIES

The Noisy series consists of very deep, well drained soils formed in colluvium and residuum derived from sandstone and mudstone. Noisy soils are moderately deep to bedrock with fractures less than 10 centimeters apart. These soils are on mountains and have slopes of 9 to 75 percent. Mean annual precipitation is 1524 millimeters (59 inches) and the mean annual temperature is 12 degrees C (54 degrees F).

TAXONOMIC CLASS: Loamy-skeletal, mixed, active, mesic Typic Haploxerults

TYPICAL PEDON: Noisy very gravelly loam - under a stand of Douglas-fir, tanoak, Pacific madrone and salal. When described on September 9, 2003 the soil was dry throughout. (Colors are for dry soil unless otherwise stated).

Oi--0 to 4 centimeters (0 to 2 inches); very dark gray (10YR 3/1) slightly decomposed plant material; abrupt smooth boundary. (0 to 15 centimeters thick)

A--4 to 13 centimeters (2 to 5 inches); brown (10YR 4/3) very gravelly loam, dark brown (10YR 3/3) moist; moderate fine and medium subangular blocky structure parting to weak very fine subangular blocky; soft, very friable, slightly sticky and slightly plastic; many very fine and fine, and common medium roots; many very fine and medium tubular pores; 50 percent gravel; very strongly acid (pH 5.0); clear smooth boundary. (6 to 20 centimeters thick)

Bt1--13 to 25 centimeters (5 to 10 inches); brownish yellow (10YR 6/6) extremely gravelly loam, yellowish brown (10YR 5/4) moist; moderate fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine, and common course roots; many very fine, and common medium tubular pores; common distinct clay films on all faces of peds; 60 percent gravel; very strongly acid (pH 4.8); clear wavy boundary.

Bt2--25 to 80 centimeters (10 to 31 inches); brownish yellow (10YR 6/6) very gravelly loam, yellowish brown(10YR 5/4) moist; moderate fine subangular blocky structure; soft, very friable, moderately sticky and moderately plastic; many very fine and fine, and common course roots; common fine and medium tubular pores; few distinct clay films on all faces of peds; 40 percent gravel; 20 percent paragravel; very strongly acid (pH 4.8); gradual wavy boundary. (Combined thickness of the upper Bt horizons is 45 to 100 centimeters)

C/Bt1--80 to 130 centimeters (31 to 51 inches); 80 percent gravel; highly fractured bedrock, fractures 5 to 10 centimeters apart; 20 percent brownish yellow (10YR 6/6) extremely gravelly sandy clay loam, yellowish brown (10YR 5/4) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine, and common medium and coarse roots; common fine and medium tubular pores; few distinct clay films on all faces of peds; 70 percent gravel; 10 percent paragravel; very strongly acid (pH 4.6); gradual wavy boundary.

C/Bt2--130 to 154 centimeters (51 to 61 inches); 80 percent gravel; highly fractured bedrock, fractures 5 to 10 centimeters apart; 20 percent brownish yellow (10YR 6/6) very gravelly sandy clay loam, yellowish brown (10YR 5/4) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common medium and coarse roots; common fine and medium tubular pores; few distinct clay films on all faces of peds; 50 percent gravel; 30 percent paragravel, very strongly acid (pH 4.6).

TYPE LOCATION: Humboldt County, California; USGS French Camp Ridge Quadrangle CA.; WGS84 Decimal degrees 41.1296389 latitude and -123.8245278 longitude; UTM Zone 10, 430791mE, 4553476mN, NAD 83.

RANGE IN CHARACTERISTICS:

Soil moisture: The soil moisture control section is dry from July 1st to October 15th and moist in all parts from November 15 to June 1st. This soil has a xeric moisture control section.

Soil temperature: The mean annual soil temperature is 10 to 15 degrees C (50 to 59 degrees F). The difference between the mean summer and mean winter temperature is 6 degrees C or greater. This soil has a mesic soil temperature regime.

Depth to bedrock with fractures less than 10 centimeters apart: 50 to 100 centimeters (20 to 40 inches).

Base saturation: base saturation (by sum of cations) is less than 35 percent at 125 centimeters below the top of the argillic.

Surface fragments: 0 to 5 percent gravel

Particle Size Control Section (weighted average):
Clay: 18 to 35 percent.
Rock fragments: 35 to 75 percent gravel, 0 to 45 percent cobbles.

A horizon
Hue: 10YR or 2.5Y
Value: 3 through 6 dry; 3 or 4 moist
Chroma: 3 or 4, dry or moist
Texture of the fine earth fraction: loam
Clay content: 12 to 25 percent
Rock fragments: 15 to 55 percent gravel, 0 to 10 percent cobbles
Soil reaction: very strongly to slightly acid

Upper Bt horizons
Hue: 10YR or 2.5Y
Value: 4 through 6 dry; 3 through 5 moist
Chroma: 4 through 6 dry; 3 through 6 moist

Texture of the fine earth fraction: loam, silty clay loam, or clay loam
Clay content: 20 to 35 percent
Rock fragments: 35 to 75 percent gravel, 0 to 45 percent cobbles
Pararock fragments: 0 to 30 percent paragravel
Soil reaction: very strongly acid to moderately acid

Lower Bt horizons
Hue: 10YR or 2.5Y
Value: 4 through 6 dry; 3 through 5 moist
Chroma: 4 through 6 dry; 3 through 6 moist

Texture of the fine earth fraction: loam, clay loam or sandy clay loam
Clay content: 12 to 30 percent
Rock fragments: 35 to 80 percent gravel, 0 to 45 percent cobbles
Pararock fragments: 0 to 30 percent paragravel
Soil reaction: very strongly acid or strongly acid

C horizon
Hue: 10YR or 2.5Y
Value: 4 through 6 dry; 3 through 5 moist
Chroma: 4 through 6 dry; 3 through 6 moist

Texture of the fine earth fraction: loam or sandy clay loam
Clay content: 12 to 30 percent
Rock fragments: 75 to 100 percent gravel and 0 to 10 percent cobble
Pararock fragments: 0 to 30 percent paragravel
Soil reaction: very strongly or strongly acid

COMPETING SERIES: These are the Honeydew and Logtrain series. Honeydew soils are moderately deep with a lithic contact between 50 and 100 centimeters from the soil surface. Longtrain soils are deep with a lithic contact between 100 and 150 centimeters from the soil surface.

GEOGRAPHIC SETTING: These soils occur on mountain slopes with slopes of 9 to 75 percent. They occur at elevations of 18 to 1437 meters (59 to 4715 feet) in linear and convex slope positions. These soils formed in colluvium and residuum from sandstone and mudstone. The climate is subhumid with warm, dry summers and cool, wet winters. The mean annual precipitation is 1250 to 2030 millimeters (49 to 80 inches). Mean annual air temperature is about 12 degrees C (54 degrees F). Mean summer temperature is 14 degrees C (58 degrees F) and the mean winter temperature is 7 degrees C (44 degrees F). The mean annual temperature is 10 to 15 degrees C (50 to 59 degrees F). The frost free period is about 150 to 250 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Tossup and Mooncreek series. Tossup soils are fine with greater than 35 percent clay in the particle size control section. Mooncreek soils are fine-loamy with less than 35 percent rock fragments in the particle size control section. Mooncreek and Tossups soils are generally on linear and concave slope positions.

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

USE AND VEGETATION: These soils are used for timber production, watershed protection, and wildlife habitat. Native vegetation is Douglas-fir, tanoak, Pacific madrone with modesty in the forb layer.

DISTRIBUTION AND EXTENT: Siskiyou-Trinity Area, MLRA 5. The series is named after Noisy Creek. The series is of moderate extent.

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

SERIES ESTABLISHED: Humboldt Del Norte area, California, 2007.

REMARKS: Diagnostic horizons and features include:

1. Ochric epipedon - The zone from 0 to 13 centimeters (Oi and A horizon)
2. Argillic horizon - The zone from 25 to 154 centimeters (Bt2, Bt3, and Bt4 horizons)
3. Particle size control section - The zone from 13 to 63 centimeters, averaging (by weight) 26 percent clay and 40 percent rock fragments.

ADDITIONAL DATA: NASIS User Pedon ID: 03CA023605079

Soil classified using Keys to Soil Taxonomy, 12th edition.

National Cooperative Soil Survey
U.S.A.