IDENTIFIERS

  • Current Taxon Name (Soil Name): Diablo
  • OSD
  • Series Extent
  • User Site ID: 93CA079001
  • User Pedon ID: 93CA079001
  • Vegetation Plot ID: 93CA079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0661
  • NCSS Pedon Lab Data NASIS Record ID - 66004
  • Print Date: 12/17/2024

    • 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: 35.3443056
  • Std. Longitude: -120.7421389
  • Datum: WGS84
  • Location Description: Approximately 1/2 mile NW of County Environmental Education Center.
  • State: California
  • County: CA079—San Luis Obispo
  • MLRA: 15—Central California Coast Range

    • PEDON

  • Describers Name: Whited, Oster, Southard, and Foster
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Diablo
  • Classificaton Date - 5/10/1993
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: foothills
  • Landform: hillside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Bedrock: moderate weathered shale, calcareous with <10
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/10/1993 (actual site observation date)
  • Air Photo ID: 9
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BRDI2

    LOLIU

    STPU2

    Brachypodium distachyon

    Lolium

    Stipa pulchra

    purple false brome

    ryegrass

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    0—69

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    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

    11

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    315

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    A1—0 to 4 centimeters (0.0 to 1.6 inches); very dark gray (10YR 3/1) exterior, exterior, dry; moderate fine and medium angular blocky structure; hard, friable, very sticky, very plastic; 10.0 very fine roots throughout and 0.5 fine roots throughout; 10.0 very fine high-continuity tubular pores; fragments; abrupt smooth boundary. Lab sample # 93P4616
    A2—4 to 20 centimeters (1.6 to 7.9 inches); very dark gray (10YR 3/1) exterior, exterior, dry; moderate fine and medium angular blocky structure; firm, very sticky, very plastic; 10.0 very fine roots throughout and 0.5 fine roots throughout; 10.0 very fine high-continuity tubular pores; fragments; abrupt wavy boundary. Lab sample # 93P4617
    Bss1—20 to 53 centimeters (7.9 to 20.9 inches); very dark gray (10YR 3/1) exterior, gray (10YR 5/1) exterior, dry; moderate medium and coarse prismatic, and strong medium angular blocky structure; firm, very sticky, very plastic; 3.0 very fine roots throughout and 0.5 fine roots throughout; 3.0 very fine high-continuity tubular and 0.5 fine high-continuity tubular pores; 15 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 37 percent distinct very dark gray (10YR 3/1), moist, slickensides (pedogenic) on faces of peds and 55 percent faint very dark gray (10YR 3/1), moist, pressure faces on faces of peds; fragments; clear smooth boundary. Lab sample # 93P4618. discontinuous - phpvsfiid 108093; continuous - phpvsfiid 108092; patchy - phpvsfiid 108094; discontinuous - phpvsfiid 108093; continuous - phpvsfiid 108092; patchy - phpvsfiid 108094
    Bss2—53 to 69 centimeters (20.9 to 27.2 inches); very dark gray (10YR 3/1) exterior, gray (10YR 5/1) exterior, dry; moderate medium and coarse prismatic, and moderate medium angular blocky structure; firm, very sticky, very plastic; 3.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine high-continuity tubular and 3.0 very fine high-continuity tubular pores; 37 percent distinct very dark gray (10YR 3/1), moist, slickensides (pedogenic) on faces of peds and 55 percent faint very dark gray (10YR 3/1), moist, pressure faces on faces of peds; fragments; clear wavy boundary. Lab sample # 93P4619. discontinuous - phpvsfiid 108100; continuous - phpvsfiid 108099; discontinuous - phpvsfiid 108100; continuous - phpvsfiid 108099
    BCkss—69 to 80 centimeters (27.2 to 31.5 inches); 90 percent dark grayish brown (2.5Y 4/2) exterior and 10 percent very dark gray (10YR 3/1); 10 percent light olive brown (2.5Y 5/6) fine prominent cylindrical mottles; moderate fine and medium angular blocky structure; very hard, firm, very sticky, very plastic; 0.5 very fine roots throughout; 0.5 very fine high-continuity tubular pores; 37 percent distinct dark grayish brown (2.5Y 4/2), moist, slickensides (pedogenic) on faces of peds and 37 percent faint dark grayish brown (2.5Y 4/2), moist, pressure faces on faces of peds; 15 percent fine and medium irregular noncoherent cemented light gray (2.5Y 7/2) lime masses throughout; fragments; strong effervescence; clear wavy boundary. Lab sample # 93P4620. discontinuous - phpvsfiid 108125; continuous - phpvsfiid 108126; discontinuous - phpvsfiid 108125; continuous - phpvsfiid 108126
    Ck—80 to 117 centimeters (31.5 to 46.1 inches); olive brown (2.5Y 4/3) rubbed and 90 percent dark grayish brown (2.5Y 4/2) exterior and 5 percent very dark gray (10YR 3/1); weak medium angular blocky structure; very hard, very firm, very sticky, very plastic; 0.5 very fine roots throughout; 0.5 very fine high-continuity tubular pores; 15 percent distinct dark grayish brown (2.5Y 4/2), moist, slickensides (pedogenic) on faces of peds and 37 percent distinct dark grayish brown (2.5Y 4/2), moist, pressure faces on faces of peds; 20 percent fine and medium irregular noncoherent cemented light gray (2.5Y 7/2) lime masses throughout; 10 percent by volume angular 2-39-75 millimeter sandstone-shale fragments; strong effervescence; gradual wavy boundary. Lab sample # 93P4621. dark colors in Ck horizon cracks of A material; 2% (2.5Y 7/2), 3% (2.5Y 4/4) soft lime masses and seams.; discontinuous - phpvsfiid 108127; discontinuous - phpvsfiid 108128; discontinuous - phpvsfiid 108127; discontinuous - phpvsfiid 108128
    Cr—117 to 150 centimeters (46.1 to 59.1 inches); dark grayish brown (2.5Y 4/2) interior and dark yellowish brown (10YR 4/6) exterior and olive brown (2.5Y 4/4) crushed; fragments; slight effervescence. Lab sample # 93P4623. angular gravel size, no rotational displacement B5; reddish color is on outside of fragments; lime is in seams strongly effervescent on lime; platy soft shale-mudstone.