LOCATION PINERIDGE               CA

Established Series
CES/JBB
09/2021

PINERIDGE SERIES

The Pineridge series consists of very deep, somewhat poorly or poorly drained soils formed in alluvium derived from granitic rocks. The Pineridge soils are on flood-plain steps of the Sierra Nevada Mountains. Slopes range from 0 to 10 percent. The mean annual precipitation is about 1000 mm and the mean annual air temperature is about 5 degrees C.

TAXONOMIC CLASS: Sandy, isotic, frigid Hydraquentic Humaquepts

TYPICAL PEDON: Pineridge coarse sandy loam on a southwest facing (225 degree), 7 percent slope with a cover of meadow lotus, sneezeweed, and other forbs and grasses at an elevation of 2143 meters. (Colors are for dry soils unless otherwise noted. When described on August 22, 2017 the soil was moist from 0 to 46 cm, and wet from 46 to 174 cm.)

A--0 to 23 cm; dark grayish brown (10YR 4/2) coarse sandy loam, very dark brown (10YR 2/2) moist; 70 percent sand; 20 percent silt; 11 percent clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; many very fine and common fine, medium, and coarse roots throughout; common very fine, fine, and medium irregular pores; NaF pH 8.6; strongly acid (pH 5.4); abrupt smooth boundary. (10 to 25 cm thick) Lab sample # 17N04650

Bw1--23 to 46 cm; 50 percent grayish brown (10YR 5/2) and 50 percent brown (10YR 5/3) coarse sandy loam, 50 percent dark brown (10YR 3/3) and 50 percent very dark grayish brown (10YR 3/2) moist; 74 percent sand; 19 percent silt; 7 percent clay; weak medium subangular blocky structure; moderately hard, firm, slightly sticky, nonplastic; common very fine, fine, and medium, and few coarse roots throughout; common very fine and fine irregular pores; 5 percent fine distinct irregular dark brown (7.5YR 3/4) moist, masses of oxidized iron in matrix; NaF pH 8.5; strongly acid (pH 5.4); clear smooth boundary. (15 to 35 cm thick) Lab sample # 17N04651

Bw2--46 to 68 cm; 45 percent pale brown (10YR 6/3) and 55 percent light brownish gray (2.5Y 6/2) loamy coarse sand, 45 percent dark brown (10YR 3/3) and 55 percent olive brown (2.5Y 4/3) moist; 77 percent sand; 16 percent silt; 7 percent clay; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; common very fine and few fine roots throughout; common very fine irregular pores; 10 percent coarse distinct irregular strong brown (7.5YR 4/6) moist, masses of oxidized iron in matrix; NaF pH 8.6; moderately acid (pH 5.6); clear smooth boundary. (15 to 45 cm thick) Lab sample # 17N04652

C1--68 to 88 cm; light gray (2.5Y 7/2) loamy coarse sand, dark grayish brown (2.5Y 4/2) moist; 86 percent sand; 10 percent silt; 4 percent clay; massive; slightly hard, friable, nonsticky, nonplastic; common very fine and few fine roots throughout; common very fine irregular pores; 5 percent coarse prominent irregular strong brown (7.5YR 4/6) moist, masses of oxidized iron in matrix; 2 percent subangular indurated quartz gravel; NaF pH 9.4; moderately acid (pH 5.8); clear smooth boundary. Lab sample # 17N04653

C2--88 to 140 cm; brown (10YR 5/3) coarse sand, dark grayish brown (2.5Y 4/2) moist; 88 percent sand; 9 percent silt; 3 percent clay; massive; slightly hard, friable, nonsticky, nonplastic; few fine roots throughout; common very fine irregular pores; 20 percent coarse prominent irregular strong brown (7.5YR 4/6) moist, masses of oxidized iron in matrix; 2 percent subangular indurated granite gravel; NaF pH 9.9; moderately acid (pH 5.8); clear smooth boundary. Lab sample # 17N04654

C3--140 to 174 cm; pale brown (10YR 6/3) coarse sand, light olive brown (2.5Y 5/4) moist; 89 percent sand; 9 percent silt; 3 percent clay; structureless single grain; loose, loose, nonsticky, nonplastic; common very fine and fine interstitial pores; 20 percent medium prominent irregular strong brown (7.5YR 4/6) moist, masses of oxidized iron in matrix; 4 percent subangular indurated granite gravel; NaF pH 9.3; moderately acid (pH 6.0). Lab sample # 17N04655

TYPE LOCATION: Tulare County, California, approximately 1.5 km northeast of Dorst Campground; USGS 7.5 minute topographic quadrangle: Muir Grove, California; WGS84 36.639860 latitude and -118.800743 longitude; UTM zone 11 4056432 meters N 339017 meters E NAD83.

RANGE IN CHARACTERISTICS:
Soil temperature: The mean annual soil temperature at 50 cm is 0 to 8 degrees C and the difference between mean summer and mean winter soil temperature is greater than 6 degrees C. The soils have a frigid temperature regime.

Soil moisture: The soil is saturated in some part throughout the year, with a seasonal high water table dropping below 50 cm in late summer and fall. The soils have an aquic soil moisture regime.

Diagnostic Feature(s):
Umbric epipedon thickness: 30 to 100 cm
Aquic conditions: present within 25 cm of the mineral soil surface

Reaction: slightly to strongly acid

Organic matter: 2 to 10 percent in the epipedon

Depth to redoximorphic features: 20 to 100 cm

Base saturation: less than 50 percent (by ammonium acetate)

Particle size control section weighted average:
Rock fragments: 0 to 15 percent, with 0 to 15 percent gravel and 0 to 5 percent cobbles
Clay content: 2 to 10 percent
NaF pH: 8.5 to 11.0

A horizon (or AB horizons, where present)
Hue: 7.5YR, 10YR
Value: 3 to 5 dry, 2 or 3 moist
Chroma: 1 to 3, dry or moist
Texture: loamy sand, coarse sandy loam, sandy loam, fine sandy loam
Clay content: 2 to 12 percent
Rock fragments: 0 to 15 percent
0 to 5 percent gravel
0 to 5 percent cobbles
0 to 10 percent channers

Bw or Bg horizons
Hue: 7.5YR, 10YR, 2.5Y
Value: 4 to 7 dry, 2 to 5 moist
Chroma: 1 to 4, dry or moist
Texture: loamy coarse sand, loamy sand, coarse sandy loam, sandy loam
Clay content: 2 to 12 percent
Rock fragments: 0 to 15 percent
0 to 5 percent gravel
0 to 5 percent cobbles
0 to 5 percent stones
Redoximorphic Features:
Oxidized iron and iron-manganese masses in matrix and along linings of pores
Quantity: few to many
Size: very fine, fine, medium, and coarse

C or Cg horizons
Hue: 7.5YR, 10YR, 2.5Y
Value: 4 to 7 dry, 2 to 5 moist
Chroma: 1 to 3, dry or moist
Texture: coarse sand, sand, loamy coarse sand, loamy sand, sandy loam
Clay content: 1 to 7 percent
Rock fragments: 0 to 60 percent
0 to 60 percent gravel
0 to 35 percent cobbles
0 to 35 percent stones
0 to 60 percent channers
0 to 60 percent flagstones
Redoximorphic Features:
Oxidized iron and iron-manganese masses in matrix and along linings of pores
Quantity: common to many
Size: medium and coarse

COMPETING SERIES: There are no other series in this family at this time.

GEOGRAPHIC SETTING: The Pineridge soils are on flood-plain steps of glacial valley floors, mountains, and plateaus. Slopes range from01 to 10 percent. These soils formed in alluvium derived from granite and granodiorite. Elevation is 1950 to 3080 meters. The climate is Mediterranean with warm, dry summers and cool, moist winters. The mean annual precipitation is 400 to 1350 mm and the mean annual air temperature is 3 to 9 degrees C. The frost free season is 75 to 145 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Funston and Wager soils. The Funston soils are poorly or very poorly drained soils on flood plains and flood-plain steps, have an ochric epipedon, and have greater than 35 percent rock fragments in the particle size control section. The Wager soils are organic soils on flood plains and are very poorly or poorly drained.

DRAINAGE AND PERMEABILITY: Poorly or somewhat poorly drained, moderately high to very high saturated hydraulic conductivity, rare to occasional flooding for very brief to long (4 hours to 30 days) duration from May to July, rare to occasional ponding for brief duration from May to July. Seasonal high water table at 10 to 25 cm.

USE AND VEGETATION: This soil is used for recreation, wildlife habitat, and watershed. Vegetation is shooting star, sneezeweed, aster, narrow leaved lotus, carex, dwarf bilberry, Lemmon's willow, Sierra willow, corn lily, juncus, grasses, black cottonwood, and scattered lodgepole pine.

DISTRIBUTION AND EXTENT: Sierra Nevada Mountains of California; MLRA 22A. These soils are not extensive.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Davis, California

SERIES PROPOSED: Tulare County, California in Sequoia and Kings Canyon National Parks. Source of name from a physiographic feature in Sequoia National Park.

REMARKS:
Particle Size Control Section for this pedon: 25 to 100 cm
Diagnostic horizons and features recognized in this pedon are:
Umbric Epipedon 0 to 46 cm
Aquic Conditions 23 to 174 cm
Redox Concentrations 23 to 140 cm

ADDITIONAL DATA:
Pedon information for this type location only:
Pedon Type: OSD pedon
Pedon Purpose: laboratory sampling site Lab Pedon #: 17N0930
NASIS User Pedon ID: S2017CA107001

Soil classified using the 12th Edition of the Keys to Soil Taxonomy.

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National Cooperative Soil Survey
U.S.A.