IDENTIFIERS

  • Current Taxon Name (Soil Name): Coppercreek
  • OSD
  • Series Extent
  • User Site ID: S1984CA605REDW004
  • User Pedon ID: S10CA023019
  • Vegetation Plot ID: S1984CA605REDW004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 10N0690
  • NCSS Pedon Lab Data NASIS Record ID - 58616
  • 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: 41.2193861
  • Std. Longitude: -124.0316889
  • Datum: WGS84
  • Township: 10N
  • Range: 1E
  • Section: 35
  • PLSS Details: northeast quarter, northwest quarter
  • Location Description: Redwood National Park, Humboldt County, California; located approximately 2.4 kilometers on road A-8 from the junction with L-line, walk 15 meters north, up the hill, to the bankcut.
  • Map Unit: 536—Coppercreek-Ahpah-Lackscreek complex, 30 to 50 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4—California Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA605—Humboldt and Del Norte Area, California
  • 7.5 Minute USGS Quad: 41124-B1—Rodgers Peak, California
  • PEDON

  • Describers Name: Jim Popenoe
  • Current Taxonomic Class: Fine-loamy, mixed, semiactive, isomesic Typic Palehumults
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 19
  • Correlated Information:
  • Soil Name - Coppercreek
  • PSC - 49 to 99 cm.
  • Classificaton Date - 4/12/2010
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Coppercreek
  • Classificaton Date - 3/19/1984
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


  • SITE

  • Parent Material: colluvium derived from schist
  • Landscape: mountains
  • Landform: mountain slope
  • Geomorphic Component Mountains: mountainflank, center third
  • Hill Slope Profile: backslope
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: schist, unspecified
  • Geology: Redwood Creek Schist member of the Franciscan Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no
  • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/19/1984 (actual site observation date)
  • Air Photo ID: 5-20
  • Surface Water Kind: none observed
  • Plant Association Name: Redwood-Douglas fir Forest
  • 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

    BLSP

    LIDE3

    VAOV2

    TSHE

    SESE3

    PSME

    ALRU2

    RHMA3

    VISE3

    POMU

    Blechnum spicant

    Lithocarpus densiflorus

    Vaccinium ovatum

    Tsuga heterophylla

    Sequoia sempervirens

    Pseudotsuga menziesii

    Alnus rubra

    Rhododendron macrophyllum

    Viola sempervirens

    Polystichum munitum

    deer fern

    tanoak

    California huckleberry

    western hemlock

    redwood

    Douglas-fir

    red alder

    Pacific rhododendron

    evergreen violet

    western swordfern

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

    ochric epipedon

    argillic horizon

    0—40

    49—113

    —28—

    —64—

    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

    68

    314

    210

    2150

    270

    11

    14

    9

    Oi—0 to 12 centimeters (0.0 to 4.7 inches); slightly decomposed plant material; 4.0 very fine roots and 4.0 fine roots; fragments; noneffervescent.; moist when described; observed in cut
    A—12 to 25 centimeters (4.7 to 9.8 inches); dark yellowish brown (10YR 4/4) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly loam; 25 percent clay; weak fine granular structure; slightly hard, very friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 0.5 medium roots and 10.0 fine roots; 10.0 very fine irregular and 0.5 medium tubular and 4.0 fine tubular and 10.0 fine irregular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; clear wavy boundary.; moist when described; observed in cut
    AB—25 to 40 centimeters (9.8 to 15.7 inches); dark yellowish brown (10YR 4/4) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly clay loam; 27 percent clay; weak fine granular, and weak coarse subangular blocky parts to weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 medium roots and 10.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 4.0 very fine irregular and 4.0 medium tubular and 4.0 fine tubular and 4.0 fine irregular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; clear wavy boundary. Lab sample # 10N03160; moist when described; observed in cut
    BAt—40 to 57 centimeters (15.7 to 22.4 inches); yellowish brown (10YR 5/6) broken face, brownish yellow (10YR 6/6) broken face, dry; gravelly clay loam; 30 percent clay; weak coarse subangular blocky parts to weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 0.5 medium tubular and 4.0 fine tubular pores; 18 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; gradual wavy boundary. Lab sample # 10N03161; moist when described; observed in cut
    Bt1—57 to 80 centimeters (22.4 to 31.5 inches); strong brown (7.5YR 5/8) broken face, reddish yellow (7.5YR 6/6) broken face, dry; gravelly clay loam; 30 percent clay; weak coarse subangular blocky structure; soft, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 0.5 medium tubular and 4.0 fine tubular pores; 7 percent faint on surfaces along pores and 8 percent faint between sand grains; 21 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary. Lab sample # 10N03162; moist when described; observed in cut
    Bt2—80 to 113 centimeters (31.5 to 44.5 inches); yellowish brown (10YR 5/8) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly clay loam; 27 percent clay; weak coarse subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 15 percent faint clay films between sand grains; 32 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary.; moist when described; observed in cut
    BC—113 to 146 centimeters (44.5 to 57.5 inches); light yellowish brown (10YR 6/4) broken face, pale yellow (2.5Y 7/4) broken face, dry; gravelly clay loam; 27 percent clay; structureless massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 fine tubular pores; 25 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary.; moist when described; observed in cut
    C—146 to 184 centimeters (57.5 to 72.4 inches); light brownish gray (2.5Y 6/2) broken face, light gray (2.5Y 7/2) broken face, dry; gravelly loam; 26 percent clay; structureless massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0.; moist when described; observed in cut