IDENTIFIERS

  • Current Taxon Name (Soil Name): Redtop
  • OSD
  • Series Extent
  • User Site ID: 04CA023605017
  • User Pedon ID: 04CA023605017
  • Vegetation Plot ID: 04CA023605017
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 05N0318
  • NCSS Pedon Lab Data NASIS Record ID - 17434
  • Print Date: 11/26/2024

    • 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: 40.7858611
  • Std. Longitude: -123.7528333
  • Datum: WGS84
  • Township: 5N
  • Range: 4E
  • Section: 29
  • Location Description: Heustis Prairie, Maple Creek Quad
  • Map Unit: 446—Bagaul-Burroin-Redtop complex, 15 to 50 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 5—Siskiyou-Trinity Area
  • Non-MLRA Soil Survey Area: CA605—Humboldt and Del Norte Area, California
  • 7.5 Minute USGS Quad: 40123-G7—Maple Creek, California

    • PEDON

  • Describers Name: Bruce Lindsay
  • Current Taxonomic Class: Fine-loamy, mixed, subactive, mesic Xeric Haplohumults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Redtop
  • PSC - 6 to 56 cm.
  • Classificaton Date - 2/3/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - xeric
  • Sampled As Information:
  • Soil Name - Bagaul
  • Classificaton Date - 5/13/2004
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from schist and/or residuum weathered from schist
  • Landscape: mountains
  • Landform: top mountain slope
  • Geomorphic Component Mountains: mountainflank
  • Hill Slope Profile: backslope
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: schist, unspecified
  • Geology: Redwood Creek Schist formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/13/2004 (actual site observation date)
  • Air Photo ID: 6250-95
  • Surface Water Kind: none observed
  • 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

    ARME

    LIDE3

    PSME

    PTAQ

    Arbutus menziesii

    Lithocarpus densiflorus

    Pseudotsuga menziesii

    Pteridium aquilinum

    Pacific madrone

    tanoak

    Douglas-fir

    western brackenfern

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

    ochric epipedon

    argillic horizon

    0—6

    6—127

    —6—

    —121—
    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

    25

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    —

    915

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    10

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    Oi—0 to 2 centimeters (0.0 to 0.8 inches); black (10YR 2/1) broken face, very dark gray (10YR 3/1) broken face, dry; slightly decomposed plant material; fragments; very strongly acid, pH 5.0, pH indicator strip; abrupt smooth boundary.; dry when described; observed in cut
    A—2 to 6 centimeters (0.8 to 2.4 inches); dark yellowish brown (10YR 3/4) broken face, yellowish brown (10YR 5/6) broken face, dry; very gravelly loam; 23 percent clay; weak fine subangular blocky structure; soft, friable, slightly sticky, nonplastic; 20.0 very fine roots and 5.0 medium roots and 20.0 fine roots and 1.0 coarse roots; 10.0 medium tubular and 10.0 fine tubular pores; 2 percent by volume nonflat subangular very strongly coherent cemented 75-162-250 millimeter schist, unspecified fragments and 40 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; strongly acid, pH 5.2, pH indicator strip; clear smooth boundary.; dry when described; observed in cut
    Bt1—6 to 14 centimeters (2.4 to 5.5 inches); dark yellowish brown (10YR 4/6) broken face, yellowish brown (10YR 5/6) broken face, dry; gravelly loam; 25 percent clay; moderate fine subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 20.0 very fine roots and 5.0 medium roots and 20.0 fine roots and 1.0 coarse roots; 5.0 medium tubular and 5.0 fine tubular and 2.0 coarse tubular pores; 40 percent distinct clay films on all faces of peds; 30 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; strongly acid, pH 5.2, pH indicator strip; clear smooth boundary.; dry when described; observed in cut
    Bt2—14 to 56 centimeters (5.5 to 22.0 inches); dark yellowish brown (10YR 4/6) broken face, yellowish brown (10YR 5/6) broken face, dry; gravelly clay loam; 30 percent clay; strong medium subangular blocky, and strong fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 20.0 very fine roots and 2.0 medium roots and 20.0 fine roots and 1.0 coarse roots; 10.0 medium tubular and 10.0 fine tubular and 1.0 coarse tubular pores; 40 percent distinct clay films on all faces of peds; 25 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; strongly acid, pH 5.2, pH indicator strip; clear smooth boundary.; dry when described; observed in cut
    Bt3—56 to 94 centimeters (22.0 to 37.0 inches); strong brown (7.5YR 5/6) broken face, reddish yellow (7.5YR 6/6) broken face, dry; gravelly clay loam; 29 percent clay; strong medium subangular blocky, and strong fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 20.0 very fine roots and 5.0 medium roots and 20.0 fine roots and 1.0 coarse roots; 10.0 medium tubular and 10.0 fine tubular and 1.0 coarse tubular pores; 30 percent distinct clay films on all faces of peds; 30 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; strongly acid, pH 5.2, pH indicator strip; clear smooth boundary.; dry when described; observed in cut
    Bt4—94 to 127 centimeters (37.0 to 50.0 inches); yellowish red (5YR 5/6) broken face, reddish yellow (7.5YR 6/6) broken face, dry; gravelly clay loam; 35 percent clay; strong medium subangular blocky, and strong fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 5.0 medium roots and 5.0 fine roots and 2.0 coarse roots; 5.0 medium tubular and 5.0 fine tubular and 1.0 coarse tubular pores; 50 percent distinct clay films on all faces of peds; 30 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; very strongly acid, pH 5.0, pH indicator strip; clear smooth boundary.; dry when described; observed in cut
    C—127 to 157 centimeters (50.0 to 61.8 inches); light olive brown (2.5Y 5/4) broken face, light yellowish brown (2.5Y 6/4) broken face, dry; extremely channery loam; 15 percent clay; massive; soft, very friable, nonsticky, nonplastic; 2.0 medium roots; 2.0 fine tubular pores; 70 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; very strongly acid, pH 5.0, pH indicator strip.; dry when described; observed in cut