IDENTIFIERS

  • Current Taxon Name (Soil Name): Redwohly
  • OSD
  • Series Extent
  • User Site ID: S2005CA601461
  • User Pedon ID: S08CA023018
  • Vegetation Plot ID: S2005CA601461
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0575
  • NCSS Pedon Lab Data NASIS Record ID - 20263
  • Print Date: 4/24/2025

    • 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: 40.2902794
  • Std. Longitude: -124.0316696
  • Datum: WGS84
  • Location Description: Humboldt Redwoods State Park, along Kemp Road.
  • Map Unit: 573—Sproulish-Canoecreek-Redwohly complex, 15 to 30 percent slopes, warm
  • 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-C1—Bull Creek, California

    • PEDON

  • Describers Name: Jenifer Berman
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, isomesic Ultic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 461
  • Correlated Information:
  • Soil Name - Redwohly
  • PSC - 11 to 61 cm.
  • Classificaton Date - 8/4/2008
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Redwohly
  • Taxonomic Class - Fine-loamy, mixed, superactive, isomesic Ultic Hap
  • Taxon Kind - series
  • Classificaton Date - 6/23/2005
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from mudstone and/or residuum weathered from sandstone
  • Landscape: mountains
  • Landform: broad ridge
  • Geomorphic Component Mountains: mountainflank, upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: moderately coherent mudstone at 95cm with <10
  • Geology: Yager Terrane member of the Coastal Belt formation in the Franciscan Complex group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/23/2005 (actual site observation date)
  • Air Photo ID: 6246-172
  • Plant Association Name: Douglas fir-tanoak
  • 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
  • Site Erosion Accelerated: water erosion sheet
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ARME

    LIDE3

    PSME

    Arbutus menziesii

    Lithocarpus densiflorus

    Pseudotsuga menziesii

    Pacific madrone

    tanoak

    Douglas-fir

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    argillic horizon

    paralithic materials

    0—11

    11—95

    95—150

    —11—

    —84—

    —55—
    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

    23

    —

    —

    512

    —

    120

    2032

    —

    260

    11

    —

    —

    10

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; very rapid permeability; 0 percent by volume subangular strongly coherent cemented 2-20-75 millimeter mudstone fragments; noneffervescent; moderately acid, pH 6.0; abrupt wavy boundary. Lab sample # 08N03566; observed in pit, small
    A—3 to 11 centimeters (1.2 to 4.3 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; paragravelly loam; 17 percent clay; moderate fine granular, and moderate very fine granular structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 1.0 very fine roots throughout and 1.0 medium roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 5 percent by volume subangular strongly coherent cemented 2-20-75 millimeter mudstone fragments and 10 percent by volume subangular moderately coherent cemented 2-20-75 millimeter mudstone fragments; noneffervescent; strongly acid, pH 5.4; clear wavy boundary. Lab sample # 08N03567; moist when described; observed in pit, small
    Bt—11 to 36 centimeters (4.3 to 14.2 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; paragravelly loam; 25 percent clay; moderate fine subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 1.0 very fine roots throughout and 1.0 very coarse roots throughout and 3.0 medium roots throughout and 0.5 fine roots throughout and 1.0 coarse roots throughout; 0.5 very fine tubular and 0.5 fine tubular pores; 20 percent faint clay films on all faces of peds; 10 percent by volume subangular strongly coherent cemented 2-20-75 millimeter mudstone fragments and 10 percent by volume subangular moderately coherent cemented 2-20-75 millimeter mudstone fragments; noneffervescent; strongly acid, pH 5.2; clear wavy boundary. Lab sample # 08N03568; moist when described; observed in pit, small
    BCt—36 to 95 centimeters (14.2 to 37.4 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; extremely paragravelly loam; 26 percent clay; moderate very fine subangular blocky, and moderate fine subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots throughout and 0.5 very coarse roots throughout and 5.0 medium roots throughout and 0.5 fine roots throughout and 0.5 coarse roots throughout; 20 percent faint clay films on all faces of peds and 20 percent faint clay films on rock fragments; 40 percent by volume subangular moderately coherent cemented 2-20-75 millimeter mudstone fragments and 40 percent by volume subangular strongly coherent cemented 2-20-75 millimeter mudstone fragments; noneffervescent; strongly acid, pH 5.4; clear irregular boundary. Lab sample # 08N03569, 08N03570; moist when described; observed in pit, small
    C—95 to 150 centimeters (37.4 to 59.1 inches); paragravel; moderately cemented; moderately rapid permeability; 0.5 very fine roots in cracks and 0.5 fine roots in cracks; 95 percent by volume angular moderately coherent cemented 2-20-75 millimeter mudstone fragments; noneffervescent. Lab sample # 08N03571, 08N03572; moist when described; observed in pit, small