IDENTIFIERS

  • Current Taxon Name (Soil Name): SWEEN
  • OSD
  • Series Extent
  • User Site ID: S1973CA079005
  • User Pedon ID: S1973CA079005
  • Vegetation Plot ID: S1973CA079005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 73C0033
  • NCSS Pedon Lab Data NASIS Record ID - 44667
  • Print Date: 12/4/2024

    • 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: 35.7805099
  • Std. Longitude: -120.9698792
  • Datum: WGS84
  • Township: 25S
  • Range: 9E
  • Section: 2
  • PLSS Details: A pit located about 2600 feet west and 4100 feet south of the NE corner
  • Location Description: San Luis Obispo County, California (Paso Robles Area). 1600 feet west from the Interlake Road Intersection on road to Oak Shores, 800 feet south on dirt road and about 400 feet west uphill.
  • 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

  • Current Taxonomic Class: Fine-silty, mixed Typic Argixerolls
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - SWEEN
  • PSC - 26 to 74 cm.
  • Classificaton Date - 3/12/2002
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Sween
  • Classificaton Date - 6/1/1973
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: hills upland
  • Runoff: high
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1973 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AVFA

    BRHOH

    CEANO

    CERCO

    HEAR5

    QUDO

    Avena fatua

    Bromus hordeaceus ssp. hordeaceus

    Ceanothus

    Cercocarpus

    Heteromeles arbutifolia

    Quercus douglasii

    wild oat

    soft brome

    ceanothus

    mountain mahogany

    toyon

    blue oak

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

    mollic epipedon

    argillic horizon

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    —-51

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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

    35

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    975.4

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    0

    406

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    14.4

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    A—0 to 26 centimeters (0.0 to 10.2 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay loam; moderate medium subangular blocky, and moderate coarse subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots and 0.5 fine roots; 21.0 very fine interstitial and 21.0 very fine tubular and 21.0 fine interstitial and 21.0 fine tubular pores; fragments; slightly acid, pH 6.5, hellige-truog; gradual wavy boundary. Lab sample # 73C00222; observed in pit, small
    B21T—26 to 53 centimeters (10.2 to 20.9 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; clay; moderate coarse prismatic, and moderate coarse angular blocky structure; very hard, very firm, very sticky, very plastic; 0.5 medium roots and 0.5 fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; 30 percent clay films on surfaces along pores and 30 percent clay films on all faces of peds; fragments; slightly acid, pH 6.5, hellige-truog; gradual wavy boundary. Lab sample # 73C00223; observed in pit, small
    B22T—53 to 74 centimeters (20.9 to 29.1 inches); very pale brown (10YR 7/4), light yellowish brown (10YR 6/4), moist; clay; weak coarse prismatic, and moderate coarse angular blocky structure; very hard, very firm, very sticky, very plastic; 0.5 medium roots and 0.5 fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; 75 percent clay films on surfaces along pores and 75 percent clay films on all faces of peds; 5 percent by volume 2-?-75 millimeter shale, clayey fragments; slightly acid, pH 6.5, hellige-truog; gradual irregular boundary. Lab sample # 73C00224; observed in pit, small
    C—74 to 100 centimeters (29.1 to 39.4 inches); very pale brown (10YR 7/4) bedrock; fragments; slightly acid, pH 6.5, hellige-truog. Lab sample # 73C00225; observed in pit, small