IDENTIFIERS

  • Current Taxon Name (Soil Name): MATTOLE
  • OSD
  • Series Extent
  • User Site ID: S1956-CA-12-009x
  • User Pedon ID: 56-CA-12-009x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD5612009
  • NCSS Pedon Lab Data NASIS Record ID - 41311
  • Print Date: 2/2/2025

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 40.3674164
  • Std. Longitude: -124.3558273
  • Datum: WGS84
  • Township: 1S
  • Range: 3W
  • Section: 24
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4B—Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA601—Humboldt County, South Part, California
  • 7.5 Minute USGS Quad: 40124-C3—Petrolia, California

    • PEDON

  • Describers Name: RAG
  • Current Taxonomic Class: Fine, montmorillonitic, mesic Pachic Ultic Argixerolls
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - MATTOLE
  • Taxonomic Class - Fine, montmorillonitic, mesic Pachic Ultic Argixerolls
  • Classificaton Date - 2/13/2009
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Drainage Class: somewhat poorly
  • Geology: Soft Calcareous Sedimentary Ro formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/13/2009 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    15

    —

    —

    122

    —

    315

    1524

    —

    —

    11.1

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    A11—0 to 20 centimeters (0.0 to 7.9 inches); dark gray (10YR 4/1), very dark grayish brown (10YR 3/2), moist; clay loam; moderate medium subangular blocky structure; slightly hard, friable; fragments; strongly acid, pH 5.4; gradual boundary. Lab sample # UCD03473
    A12—20 to 38 centimeters (7.9 to 15.0 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; silty clay loam; moderate coarse subangular blocky structure; slightly hard, friable; fragments; strongly acid, pH 5.3; clear boundary. Lab sample # UCD03474
    A3—38 to 51 centimeters (15.0 to 20.1 inches); grayish brown (10YR 5/2), very dark gray (10YR 3/1), moist; silty clay loam; moderate coarse subangular blocky structure; hard, friable; fragments; strongly acid, pH 5.4; abrupt boundary. Lab sample # UCD03475
    B2t—51 to 97 centimeters (20.1 to 38.2 inches); gray (10YR 6/1), gray (10YR 5/1), moist; clay; 3 percent brownish yellow (10YR 6/6) and 3 percent light yellowish brown (10YR 6/4) mottles; moderate medium angular blocky structure; hard, very firm; 30 percent clay films; fragments; strongly acid, pH 5.3; gradual boundary. Lab sample # UCD03476. continuous - phpvsfiid 662954; continuous - phpvsfiid 662954
    C1—97 to 147 centimeters (38.2 to 57.9 inches); pale brown (10YR 6/3), dark grayish brown (10YR 4/2), moist; silty clay loam; firm; fragments; strongly acid, pH 5.2; gradual boundary. Lab sample # UCD03477
    C2—147 to 160 centimeters (57.9 to 63.0 inches); pale brown (10YR 6/3), dark grayish brown (10YR 4/2), moist; silty clay loam; firm; fragments; neutral, pH 7.0. Lab sample # UCD03478