IDENTIFIERS

  • Current Taxon Name (Soil Name): Elkhorn
  • OSD
  • Series Extent
  • User Site ID: S1955CA081006
  • User Pedon ID: S1955CA081006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2891
  • NCSS Pedon Lab Data NASIS Record ID - 37470
  • Print Date: 11/13/2024

    • 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: 37.1894455
  • Std. Longitude: -122.3925018
  • Datum: WGS84
  • Location Description: 115 yards east of California Highway No. 1, measured from a point 4/10 mile north of Pigeon Point Lighthouse. In a cultivated field about 10 feet north of a field road.
  • 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 #: 6
  • Correlated Information:
  • Soil Name - Elkhorn
  • PSC - 25 to 100 cm.
  • Classificaton Date - 1/27/2010
  • 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
  • Site Obs. Cover Kind 2 - row crop
  • 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

    3

    —

    —

    17

    —

    315

    508

    —

    —

    —

    15.6

    8.9

    —

    —

    —

    —

    —

    —

    —

    —
    AP—0 to 33 centimeters (0.0 to 13.0 inches); dark grayish brown (10YR 4/2), dark grayish brown (10YR 4/2), moist; sandy loam; weak medium and coarse granular structure; slightly hard, friable, nonsticky, nonplastic; fragments; very strongly acid, pH 5.0, hellige-truog; abrupt smooth boundary. Lab sample # 40A22791; wet when described;
    A12—33 to 43 centimeters (13.0 to 16.9 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2), moist; sandy loam; weak fine and medium granular structure; slightly hard, friable, nonsticky, nonplastic; fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # 40A22792; wet when described;
    A21—43 to 61 centimeters (16.9 to 24.0 inches); dark grayish brown (10YR 4/2) and brown (10YR 4/3), very dark grayish brown (10YR 3/2) and dark brown (10YR 3/3), moist; sandy loam; weak medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 40A22793; wet when described;
    A22—61 to 69 centimeters (24.0 to 27.2 inches); gray (10YR 5/1) and brown (10YR 5/3), very dark gray (10YR 3/1) and dark brown (10YR 3/3), moist; sandy loam; moderate medium subangular blocky structure; hard when dry, friable, nonsticky, slightly plastic; 10 percent clay films on vertical faces of peds; fragments; moderately acid, pH 5.6, hellige-truog. Lab sample # 40A22794; wet when described;
    B2—69 to 102 centimeters (27.2 to 40.2 inches); yellowish brown (10YR 5/6), dark yellowish brown (10YR 4/6), moist; sandy clay loam; very dark brown (10YR 2/2) and dark brown (10YR 3/3) and 3 percent black (10YR 2/1) fine and medium mottles; moderate medium subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 1.0 pores; clay films; fragments; moderately acid, pH 6.0, hellige-truog. Lab sample # 40A22795; wet when described;. continuous - phpvsfiid 186698; continuous - phpvsfiid 186698
    B3—102 to 140 centimeters (40.2 to 55.1 inches); yellowish brown (10YR 5/6), dark yellowish brown (10YR 4/6), moist; sandy loam; 21 percent black (10YR 2/1) medium and coarse mottles; weak medium and coarse subangular blocky structure; hard when dry, friable, nonsticky, slightly plastic; 3.0 fine pores; clay films; fragments; slightly acid, pH 6.2, hellige-truog; clear wavy boundary. Lab sample # 40A22796; wet when described;. patchy - phpvsfiid 186699; patchy - phpvsfiid 186699
    CG/CUG—140 to 162 centimeters (55.1 to 63.8 inches); light gray (2.5Y 7/1) and yellowish brown (10YR 5/6), light brownish gray (2.5Y 6/2) and dark yellowish brown (10YR 4/6), moist; sandy clay loam; massive; very hard, friable, moderately sticky, moderately plastic; 10 percent clay films on vertical faces of peds; fragments; strongly acid, pH 5.3, hellige-truog. Lab sample # 40A22797; wet when described;. patchy - phpvsfiid 186700; patchy - phpvsfiid 186700