IDENTIFIERS

  • Current Taxon Name (Soil Name): Elkhorn
  • OSD
  • Series Extent
  • User Site ID: S1955CA081005
  • User Pedon ID: S1955CA081005
  • Vegetation Plot ID: S1955CA081005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2890
  • NCSS Pedon Lab Data NASIS Record ID - 37469
  • Print Date: 11/21/2024

    • 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: 37.2291679
  • Std. Longitude: -122.4033356
  • Datum: WGS84
  • Location Description: Two miles southwest of Pescadero, 1/2 mile north of junction of Highway No. 1 and Ola Coast Highway on east side of Old Coast Highway. See Sheet 40, Soil Survey of San Mateo Area, California, May, 1961.
  • State: California
  • County: CA081—San Mateo
  • MLRA: 4—California Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA637—San Mateo Area, California

    • PEDON

  • Describers Name: W. M. Johnson
  • Current Taxonomic Class: Fine-loamy, mixed, mesic Ultic 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 #: 5
  • Correlated Information:
  • Soil Name - Elkhorn
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Elkhorn
  • Classificaton Date - 2/25/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: marine terrace
  • Slope Shape Down: linear
  • Runoff: medium
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/25/1955 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    BROLG

    Brassica oleracea var. gemmifera

    brussels sprouts

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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

    10

    —

    —

    20

    —

    270

    508

    —

    —

    —

    15.6

    8.9

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    —

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    AP—0 to 15 centimeters (0.0 to 5.9 inches); gray (10YR 5/1), very dark grayish brown (10YR 3/2), moist; fine sandy loam; weak fine and medium granular structure; slightly hard, very friable, nonsticky, nonplastic; 21.0 roots; fragments; very strongly acid, pH 4.8, hellige-truog; abrupt wavy boundary. Lab sample # 40A22785; wet when described;
    A12—15 to 36 centimeters (5.9 to 14.2 inches); gray (10YR 5/1), very dark grayish brown (10YR 3/2), moist; sandy loam; weak fine and medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 21.0 roots; fragments; very strongly acid, pH 5.0, hellige-truog; abrupt wavy boundary. Lab sample # 40A22786; wet when described;
    A2—36 to 66 centimeters (14.2 to 26.0 inches); light gray (10YR 7/2), brown (10YR 5/3), moist; fine sandy loam; massive; slightly hard, very friable, nonsticky, nonplastic; 3.0 roots; fragments; moderately acid, pH 5.8, hellige-truog; abrupt irregular boundary. Lab sample # 40A22787; wet when described;. There are lumps of B2 in this horizon, and tongues of A2 penetrate to a depth of about 4 feet in this profile.
    B21—66 to 102 centimeters (26.0 to 40.2 inches); brownish yellow (10YR 6/6), yellowish brown (10YR 5/6), moist; sandy clay loam; moderate very coarse prismatic parts to weak medium and coarse subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 roots; 30 percent clay films; fragments; moderately acid, pH 6.0, hellige-truog; clear irregular boundary. Lab sample # 40A22788; wet when described;. continuous - phpvsfiid 186694; continuous - phpvsfiid 186694
    B22—102 to 127 centimeters (40.2 to 50.0 inches); brownish yellow (10YR 6/6) and yellowish brown (10YR 5/6) sandy clay loam; weak medium and coarse angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.1 roots; 30 percent clay films; fragments; slightly acid, pH 6.2, hellige-truog; gradual wavy boundary. Lab sample # 40A22789; wet when described;. continuous - phpvsfiid 186695; continuous - phpvsfiid 186695
    C1—127 to 152 centimeters (50.0 to 59.8 inches); very pale brown (10YR 7/3) and brownish yellow (10YR 6/6), brown (10YR 5/3) and dark yellowish brown (10YR 4/6), moist; sandy clay loam; massive; hard when dry, friable, moderately sticky, moderately plastic; 0.0 roots; tubular pores; 10 percent clay films; fragments; slightly acid, pH 6.4, hellige-truog. Lab sample # 40A22790; wet when described;