IDENTIFIERS

  • Current Taxon Name (Soil Name): Benbow
  • OSD
  • Series Extent
  • User Site ID: 05CA601443
  • User Pedon ID: 05CA601443
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 05N0653
  • NCSS Pedon Lab Data NASIS Record ID - 18187
  • Print Date: 2/2/2025

    • 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: 40.3388922
  • Std. Longitude: -124.3040188
  • Datum: WGS84
  • Township: 1S
  • Range: 2W
  • Section: 33
  • Location Description: north fork ranch
  • Map Unit: 152—Benbow, 2 to 9 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4B—Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA601—Humboldt County, South Part, California
  • 7.5 Minute USGS Quad: 40124-C3—Petrolia, California

    • PEDON

  • Describers Name: JTB, JWH, JRS
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, mesic Fluventic Humic Dystroxerepts
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 443
  • Correlated Information:
  • Soil Name - Benbow
  • PSC - 25 to 100 cm.
  • Classificaton Date - 11/7/2011
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Benbow
  • Classificaton Date - 5/10/2005
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from mixed
  • Landscape: river valley
  • Landform: uplifted terrace
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 10.00 percent subrounded 5- to 75-millimeter sandstone, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/10/2005 (actual site observation date)
  • Air Photo ID: 6247-61
  • Plant Association Name: pasture
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    umbric epipedon

    0—69

    —-
    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

    1

    —

    —

    134

    —

    130

    2030

    —

    260

    14

    —

    —

    16

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 14 centimeters (0.0 to 5.5 inches); very dark grayish brown (10YR 3/2), black (10YR 2/1), moist; very gravelly loam; 23 percent clay; moderate fine granular, and moderate medium granular structure; soft, very friable, nonsticky, nonplastic; Ksat of 9 um/s; moderate permeability; 15.0 very fine roots throughout and 0.5 medium roots throughout and 1.0 fine roots throughout; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 50 percent by volume nonflat subangular strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments; noneffervescent; extremely acid, pH 3.9, pH meter; clear smooth boundary.; moist when described; observed in pit, small
    A1—14 to 33 centimeters (5.5 to 13.0 inches); very dark grayish brown (10YR 3/2), black (10YR 2/1), moist; very gravelly loam; 22 percent clay; weak medium subangular blocky parts to weak fine granular structure; slightly hard, very friable, nonsticky, nonplastic; Ksat of 9 um/s; moderate permeability; 5.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 55 percent by volume nonflat subangular strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments; noneffervescent; extremely acid, pH 4.3, pH meter; clear smooth boundary.; moist when described; observed in pit, small
    A2—33 to 69 centimeters (13.0 to 27.2 inches); very dark grayish brown (10YR 3/2), black (10YR 2/1), moist; extremely gravelly loam; 22 percent clay; weak fine subangular blocky parts to weak fine granular, and weak medium subangular blocky parts to weak fine granular structure; slightly hard, friable, nonsticky, nonplastic; Ksat of 9 um/s; moderate permeability; 3.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 medium tubular and 0.5 fine tubular pores; 70 percent by volume nonflat subangular strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments; noneffervescent; extremely acid, pH 4.4, pH meter; clear wavy boundary.; moist when described; observed in pit, small
    A3—69 to 87 centimeters (27.2 to 34.3 inches); pale brown (10YR 6/3), dark brown (10YR 3/3), moist; gravelly loam; 22 percent clay; weak very fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9 um/s; moderate permeability; 3.0 very fine roots throughout; 0.5 medium tubular and 0.5 fine tubular and 0.5 coarse tubular pores; 14 percent by volume nonflat subangular strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments and 14 percent by volume nonflat subrounded strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments; noneffervescent; very strongly acid, pH 4.8, pH meter; gradual irregular boundary.; moist when described; observed in pit, small
    A4—87 to 105 centimeters (34.3 to 41.3 inches); pale brown (10YR 6/3), very dark grayish brown (10YR 3/2), moist; very gravelly loam; 23 percent clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9 um/s; moderate permeability; 1.0 very fine roots throughout; 0.5 medium tubular and 0.5 fine tubular pores; 21 percent by volume nonflat subangular strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments and 21 percent by volume nonflat subrounded strongly coherent cemented 5-15-30 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.1, pH meter; gradual irregular boundary.; moist when described; observed in pit, small
    C1—105 to 123 centimeters (41.3 to 48.4 inches); light yellowish brown (2.5Y 6/3), olive brown (2.5Y 4/3), moist; extremely gravelly coarse sandy loam; 18 percent clay; massive; slightly hard, friable, slightly sticky, nonplastic; Ksat of 9 um/s; moderate permeability; 1.0 very fine roots throughout; 0.5 medium tubular and 0.5 fine tubular pores; 65 percent by volume nonflat subrounded strongly coherent cemented 5-25-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.3, pH meter; gradual irregular boundary.; moist when described; observed in pit, small
    C2—123 to 157 centimeters (48.4 to 61.8 inches); light yellowish brown (2.5Y 6/3), dark grayish brown (10YR 4/2), moist; very gravelly sandy loam; 18 percent clay; single grain; loose, loose, nonsticky, nonplastic; Ksat of 9 um/s; moderate permeability; 0.5 very fine roots throughout; 10 percent faint clay films on tops of rock fragments; 2 percent by volume nonflat subrounded strongly coherent cemented 75-100-250 millimeter sandstone, unspecified fragments and 55 percent by volume nonflat subrounded strongly coherent cemented 5-25-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.3, pH meter; clear wavy boundary.; moist when described; observed in pit, small
    C3—151 to 200 centimeters (59.4 to 78.7 inches); pale brown (10YR 6/3), dark grayish brown (10YR 4/2), moist; extremely gravelly loamy coarse sand; 13 percent clay; single grain; loose, loose, nonsticky, nonplastic; Ksat of 9 um/s; moderate permeability; 2 percent by volume nonflat subrounded strongly coherent cemented 75-100-250 millimeter sandstone, unspecified fragments and 74 percent by volume nonflat subrounded strongly coherent cemented 5-25-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.4, pH meter.; moist when described; observed in pit, small