IDENTIFIERS

  • Current Taxon Name (Soil Name): Gibson Creek
  • OSD
  • Series Extent
  • User Site ID: S2004CA023016
  • User Pedon ID: 04CA023015
  • Vegetation Plot ID: S2004CA023016
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 05N0138
  • Print Date: 11/11/2024

    • 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: 40.0855560
  • Std. Longitude: -123.9452744
  • Datum: WGS84
  • Location Description: Barnum Timber Property near Huckleberry gate
  • Map Unit: 577—Redwohly-Gibsoncreek-Sproulish complex, 15 to 30 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4—California Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA601—Humboldt County, South Part, California
  • 7.5 Minute USGS Quad: 40123-A8—Briceland, California

    • PEDON

  • Describers Name: Jonathan W. Hooper
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 15
  • Sampled As Information:
  • Soil Name - Gibson Creek
  • Taxonomic Class - Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
  • PSC - 18 to 68 cm.
  • Classificaton Date - 5/6/2004
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - xeric
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountains
  • Landform: hillslope, ridge
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 2.00 percent subrounded strongly coherent cemented 2- to 15-millimeter sandstone, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/6/2004 (actual site observation date)
  • Air Photo ID: 6246-153
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • 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

    LIDE3

    PSME

    ARME

    Lithocarpus densiflorus

    Pseudotsuga menziesii

    Arbutus menziesii

    tanoak

    Douglas-fir

    Pacific madrone

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

    ochric epipedon

    argillic horizon

    0—18

    18—125

    10—20—25

    50—100—125
    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

    37

    —

    —

    425

    —

    240

    2040

    —

    260

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    —

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    Oi—0 to 4 centimeters (0.0 to 1.6 inches); fragments; noneffervescent; abrupt smooth boundary.; observed in pit, small
    A—4 to 18 centimeters (1.6 to 7.1 inches); dark brown (7.5YR 3/2), very dark brown (7.5YR 2.5/2), moist; loam; 17 percent clay; moderate medium granular structure; slightly hard, very friable, nonsticky, nonplastic; moderate permeability; 2.0 very fine roots throughout; 3 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # 05N00705; moist when described; observed in pit, small
    Bt1—18 to 52 centimeters (7.1 to 20.5 inches); brown (7.5YR 5/3), brown (7.5YR 4/3), moist; loam; 22 percent clay; weak medium subangular blocky parts to moderate medium granular structure; moderately hard, friable, nonsticky, slightly plastic; moderate permeability; 2.0 very fine roots throughout and 2.0 medium roots throughout and 2.0 fine roots throughout; 1.0 very fine low-continuity tubular pores; 60 percent faint clay films on all faces of peds; 3 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.6; clear smooth boundary. Lab sample # 05N00706; moist when described; observed in pit, small. patchy - phpvsfiid 332103; patchy - phpvsfiid 332103
    Bt2—52 to 70 centimeters (20.5 to 27.6 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; loam; 25 percent clay; weak medium subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 2.0 medium roots throughout and 2.0 fine roots throughout and 1.0 coarse roots throughout; 0.5 very fine low-continuity tubular pores; 60 percent distinct clay films on surfaces along pores and 60 percent distinct clay films on all faces of peds; 6 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.8; clear wavy boundary. Lab sample # 05N00707; moist when described; observed in pit, small. patchy - phpvsfiid 332104; patchy - phpvsfiid 332105; patchy - phpvsfiid 332104; patchy - phpvsfiid 332105
    Bt3—70 to 110 centimeters (27.6 to 43.3 inches); light yellowish brown (10YR 6/4), strong brown (7.5YR 4/6), moist; very gravelly clay loam; 27 percent clay; weak medium subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; moderately slow permeability; 1.0 medium roots around fragments and 1.0 fine roots around fragments and 2.0 coarse roots around fragments; 0.5 very fine low-continuity tubular pores; 50 percent distinct clay films on all faces of peds and 50 percent distinct clay films on surfaces along pores; 40 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.6; clear wavy boundary. Lab sample # 05N00708; moist when described; observed in pit, small. patchy - phpvsfiid 332106; patchy - phpvsfiid 332107; patchy - phpvsfiid 332106; patchy - phpvsfiid 332107
    Bt4—110 to 125 centimeters (43.3 to 49.2 inches); light yellowish brown (10YR 6/4), yellowish brown (10YR 5/6), moist; sandy loam, extremely gravelly sandy clay loam; 22 percent clay; weak medium subangular blocky parts to weak medium granular structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 50 percent distinct clay films on all faces of peds and 50 percent distinct clay films on surfaces along pores; 75 percent by volume subrounded moderately coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.6; clear wavy boundary. Lab sample # 05N00709; moist when described; observed in pit, small. patchy - phpvsfiid 332108; patchy - phpvsfiid 332109; patchy - phpvsfiid 332108; patchy - phpvsfiid 332109
    CBt—125 to 155 centimeters (49.2 to 61.0 inches); light yellowish brown (2.5Y 6/4), yellowish brown (10YR 5/4), moist; extremely gravelly sandy loam, sandy loam; 18 percent clay; structureless massive; slightly hard, very friable, nonsticky, nonplastic; moderate permeability; 5 percent faint clay films on surfaces along pores; 85 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.8; gradual smooth boundary. Lab sample # 05N00710; moist when described; observed in pit, small. patchy - phpvsfiid 332110; patchy - phpvsfiid 332110
    C—155 to 200 centimeters (61.0 to 78.7 inches); light yellowish brown (2.5Y 6/4), yellowish brown (10YR 5/4), moist; extremely gravelly sandy loam; 18 percent clay; structureless massive; slightly hard, very friable, nonsticky, nonplastic; moderate permeability; 85 percent by volume subrounded strongly coherent cemented 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.8. Lab sample # 05N00711; moist when described; observed in pit, small