IDENTIFIERS

  • Current Taxon Name (Soil Name): AHWAHNEE
  • OSD
  • Series Extent
  • User Site ID: S1955CA079001
  • User Pedon ID: S1955CA079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2872
  • NCSS Pedon Lab Data NASIS Record ID - 37451
  • Print Date: 11/11/2024

    • LOCATION

  • Location Description: 7/8 mile N.N.E. of farm buildings on the George Mello farm.
  • State: California
  • County: CA079—San Luis Obispo
  • MLRA: 15—Central California Coast Range
  • Non-MLRA Soil Survey Area: CA664—San Luis Obispo County, California, Coastal Part

    • PEDON

  • Describers Name: W. M. Johnson
  • Current Taxonomic Class: Coarse-loamy, mixed, thermic Mollic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - AHWAHNEE
  • PSC - 25 to 100 cm.
  • Classificaton Date - 11/25/2009
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Ahwahnee
  • Classificaton Date - 9/7/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: hills
  • Slope Shape Down: convex
  • Runoff: high
  • Drainage Class: somewhat excessively
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/7/1955 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    20

    —

    —

    34

    —

    180

    —

    —

    —

    —

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    A11—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; loamy fine sand; massive; slightly hard, very friable, nonsticky, nonplastic; fragments; slightly acid, pH 6.5, unspecified; clear smooth boundary. Lab sample # 40A22649
    A12—10 to 30 centimeters (3.9 to 11.8 inches);, very dark grayish brown (10YR 3/2), moist; loamy fine sand; 1 percent brown (10YR 4/3) fine mottles; massive; very hard, very friable, nonsticky, nonplastic; fragments; slightly acid, pH 6.3, unspecified; gradual wavy boundary. Lab sample # 40A22650. Much worm activity.
    A3—30 to 46 centimeters (11.8 to 18.1 inches);, dark brown (10YR 3/3), moist; loamy fine sand; massive; slightly hard, very friable, nonsticky, nonplastic; fragments; slightly acid, pH 6.3, unspecified; clear wavy boundary. Lab sample # 40A22651
    B21—46 to 76 centimeters (18.1 to 29.9 inches);, dark yellowish brown (10YR 4/4) and dark yellowish brown (10YR 3/4), moist; fine sandy loam; weak medium and coarse subangular blocky structure; very firm, nonsticky, slightly plastic; 0.5 pores; 75 percent distinct clay films; fragments; moderately acid, pH 6.0, unspecified; gradual boundary. Lab sample # 40A22652. patchy - phpvsfiid 184044; patchy - phpvsfiid 184044
    B22—76 to 112 centimeters (29.9 to 44.1 inches);, dark brown (10YR 3/3) and dark yellowish brown (10YR 4/4), moist; sandy clay loam; weak medium subangular blocky structure; very hard, very firm, slightly sticky, moderately plastic; 75 percent clay films; fragments; moderately acid, pH 6.0, unspecified. Lab sample # 40A22653. patchy - phpvsfiid 196485; patchy - phpvsfiid 196485
    C—112 to 152 centimeters (44.1 to 59.8 inches);, brown (10YR 4/3), moist; stratified fine sandy loam to sandy clay loam; massive; friable, slightly sticky, moderately plastic; fragments; moderately acid, pH 6.0, unspecified. Lab sample # 40A22654