IDENTIFIERS

  • Current Taxon Name (Soil Name): CASPAR
  • OSD
  • Series Extent
  • User Site ID: S1963-CA-49-012x
  • User Pedon ID: 63-CA-49-012x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD6349012
  • NCSS Pedon Lab Data NASIS Record ID - 42033
  • Print Date: 4/28/2025

    • 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: 38.5988235
  • Std. Longitude: -123.3230438
  • Datum: WGS84
  • Township: 9N
  • Range: 13W
  • Section: 29
  • PLSS Details: NW/4, SW/4
  • State: California
  • County: CA097—Sonoma
  • MLRA: 4B—Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA097—Sonoma County, California
  • 7.5 Minute USGS Quad: 38123-E3—Plantation, California

    • PEDON

  • Describers Name: WLC, JAD, BFS
  • Current Taxonomic Class: Fine-loamy, mixed, isomesic Typic Tropudults
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - CASPAR
  • Taxonomic Class - Fine-loamy, mixed, isomesic Typic Tropudults
  • Classificaton Date - 1/28/2009
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Slope Complexity: simple
  • Drainage Class: well
  • Geology: Old Marine Terrace. Geologic F formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/28/2009 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    20

    —

    —

    91

    —

    135

    1016

    —

    —

    11.7

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    O1—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Lab sample # UCD03151
    A21—3 to 18 centimeters (1.2 to 7.1 inches); dark gray (10YR 4/1), gray (10YR 6/1), dry; sandy loam; structureless fine granular structure; very friable, nonsticky, nonplastic; 21.0 very fine roots throughout and 21.0 fine roots throughout; 21.0 very fine irregular and 21.0 very fine tubular and 21.0 fine irregular and 21.0 fine tubular pores; fragments; extremely acid, pH 4.3; clear smooth boundary. Lab sample # UCD03152
    A22—18 to 33 centimeters (7.1 to 13.0 inches); grayish brown (2.5Y 5/2), light gray (10YR 7/1), dry; sandy loam; weak fine granular structure; very friable, nonsticky, nonplastic; 21.0 very fine roots throughout and 21.0 fine roots throughout; 21.0 very fine irregular and 21.0 very fine tubular and 21.0 fine irregular and 21.0 fine tubular pores; fragments; extremely acid, pH 4.3; abrupt wavy boundary. Lab sample # UCD03153
    B11t—33 to 64 centimeters (13.0 to 25.2 inches); yellowish brown (10YR 5/4), very pale brown (10YR 7/4), dry; fine sandy loam; strong medium angular blocky structure; very firm, slightly sticky, moderately plastic; 0.5 medium roots throughout and 0.5 fine roots throughout; 3.0 very fine irregular and 3.0 very fine tubular and 3.0 fine irregular and 3.0 fine tubular pores; 75 percent clay films on all faces of peds and 75 percent clay films on surfaces along pores; fragments; moderately acid, pH 5.6; clear smooth boundary. Lab sample # UCD03154. continuous - phpvsfiid 662859; continuous - phpvsfiid 662859
    B12t—64 to 79 centimeters (25.2 to 31.1 inches); yellowish brown (10YR 5/6), very pale brown (10YR 7/4), dry; sandy clay loam; 3 percent yellowish red (5YR 5/8) medium prominent mottles; massive; firm, moderately sticky, moderately plastic; 0.5 fine roots throughout; 3.0 very fine irregular and 3.0 very fine tubular and 3.0 fine irregular and 3.0 fine tubular pores; 30 percent clay films on all faces of peds and 30 percent clay films between sand grains; fragments; strongly acid, pH 5.2; clear smooth boundary. Lab sample # UCD03155
    B2t—79 to 155 centimeters (31.1 to 61.0 inches); yellowish brown (10YR 5/6), light yellowish brown (10YR 6/4), dry; clay loam; strong coarse angular blocky structure; firm, moderately sticky, very plastic; 0.1 fine roots throughout; 0.5 fine tubular pores; clay films on all faces of peds and clay films between sand grains; fragments; strongly acid, pH 5.1. Lab sample # UCD03156. continuous - phpvsfiid 662863; continuous - phpvsfiid 662864; continuous - phpvsfiid 662863; continuous - phpvsfiid 662864