IDENTIFIERS

  • Current Taxon Name (Soil Name): DIABLO
  • OSD
  • Series Extent
  • User Site ID: S1955CA079002
  • User Pedon ID: S1955CA079002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3089
  • NCSS Pedon Lab Data NASIS Record ID - 38218
  • Print Date: 11/21/2024

    • LOCATION

  • Location Description: About 1.31 miles N.N.E. of farm buildings on George Mello farm. On aerial photography AXH-4F-148.
  • 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: Fine, smectitic, thermic Aridic Haploxererts
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - DIABLO
  • PSC - 25 to 69 cm.
  • Classificaton Date - 7/16/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Diablo
  • Classificaton Date - 9/7/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: hill
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/7/1955 (actual site observation date)
  • Air Photo ID: AXH-4F148
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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

    5

    —

    —

    101

    —

    —

    —

    —

    —

    —

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    AP1—0 to 3 centimeters (0.0 to 1.2 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; strong coarse, and fine and medium granular structure; extremely hard, very firm, very sticky, very plastic; fragments; slightly acid, pH 6.5, hellige-truog; abrupt smooth boundary. Lab sample # 40A24163
    AP2—3 to 10 centimeters (1.2 to 3.9 inches);, very dark gray (10YR 3/1), moist; clay; moderate medium and coarse subangular blocky structure; extremely hard, very firm, very sticky, very plastic; fragments; slightly acid, pH 6.5, hellige-truog; gradual wavy boundary. Lab sample # 40A24164
    A13—10 to 51 centimeters (3.9 to 20.1 inches);, very dark gray (10YR 3/1), moist; clay; weak medium and coarse subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 75 percent slickensides (pedogenic); fragments; neutral, pH 6.6, hellige-truog; gradual wavy boundary. Lab sample # 40A24165
    AC—51 to 69 centimeters (20.1 to 27.2 inches);, very dark gray (10YR 3/1), moist; clay; weak coarse subangular blocky, and massive; hard when dry, very firm, very sticky, very plastic; fragments; neutral, pH 6.6, hellige-truog; abrupt wavy boundary. Lab sample # 40A24166. Numerous small hard fragments of shale.
    R—69 to 94 centimeters (27.2 to 37.0 inches);, dark grayish brown (10YR 4/2), moist; unweathered bedrock; fragments. Lab sample # 40A24167. shattered, hard siliceous (?) shale. Black films on the surface. Some clayey material in interstices in upper part.