IDENTIFIERS

  • Current Taxon Name (Soil Name): Eelriver
  • OSD
  • Series Extent
  • User Site ID: 08CA6011077
  • User Pedon ID: 08CA6011077
  • Vegetation Plot ID: 08CA6011077
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 09N0169
  • NCSS Pedon Lab Data NASIS Record ID - 20311
  • Print Date: 11/21/2024

    • 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: 40.3521250
  • Std. Longitude: -123.9246194
  • Datum: WGS84
  • Location Description: Site is the same as 601593 but pit was dug for lab sampling.
  • Map Unit: 179—Eelriver and Cottoneva soils, 0 to 2 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: 40123-C8—Weott, California

    • PEDON

  • Describers Name: Jonathan W. Hooper, Sue Aszman
  • Current Taxonomic Class: Fine-silty, isotic, nonacid, isomesic Aquic Udifluvents
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1077
  • Correlated Information:
  • Soil Name - Eelriver
  • PSC - 28 to 103 cm.
  • Classificaton Date - 3/26/2013
  • Classifier - Jonathan Hooper
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Eelriver
  • Classificaton Date - 11/13/2008
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from sedimentary rock
  • Landscape: river valley
  • Landform: flood-plain step
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: moderately well
  • Flooding: rare flooding for very brief periods begining in jan
  • Ponding: frequent ponding for very brief periods begining in dec
  • Geology: Quaternary Alluvium member.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/13/2008 (actual site observation date)
  • Air Photo ID: 6261-21
  • Plant Association Name: redwood forest
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - conifers
  • 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

    OXOR

    POMU

    SESE3

    Oxalis oregana

    Polystichum munitum

    Sequoia sempervirens

    redwood-sorrel

    western swordfern

    redwood

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

    ochric epipedon

    aquic conditions

    0—26

    40—200

    —26—

    —160—
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    11/13/2008

    50

    —

    9
    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

    —

    —

    55

    —

    30

    1500

    —

    345

    13

    —

    —

    11

    —

    —

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); brown (7.5YR 4/4) rubbed slightly decomposed plant material; fragments; noneffervescent; moderately acid, pH 6.0, chlorophenol red; abrupt smooth boundary.; very moist when described; observed in pit, small
    A1—3 to 10 centimeters (1.2 to 3.9 inches); very dark grayish brown (10YR 3/2) broken face, light brownish gray (10YR 6/2) broken face, dry; silt loam; 22 percent clay; moderate medium granular structure; moderately hard, friable, slightly sticky, moderately plastic; 3.0 very fine roots throughout and 3.0 medium roots throughout and 2.0 fine roots throughout and 1.0 coarse roots throughout; fragments; noneffervescent; moderately acid, pH 6.0, chlorophenol red; clear smooth boundary.; very moist when described; observed in pit, small
    A2—10 to 26 centimeters (3.9 to 10.2 inches); very dark grayish brown (10YR 3/2) broken face, light brownish gray (10YR 6/2) broken face, dry; silt loam; 22 percent clay; moderate fine subangular blocky structure; moderately hard, friable, slightly sticky, moderately plastic; 2.0 very fine roots throughout and 2.0 medium roots throughout and 2.0 fine roots throughout and 1.0 coarse roots throughout; 2.0 very fine tubular pores; fragments; noneffervescent; moderately acid, pH 6.0, chlorophenol red; clear smooth boundary.; very moist when described; observed in pit, small
    C—26 to 40 centimeters (10.2 to 15.7 inches); dark grayish brown (10YR 4/2) broken face, pale brown (10YR 6/3) broken face, dry; silt loam; 23 percent clay; massive; moderately hard, friable, slightly sticky, moderately plastic; 1.0 very coarse roots throughout and 2.0 medium roots throughout and 2.0 fine roots throughout and 1.0 coarse roots throughout; 2.0 very fine tubular pores; fragments; noneffervescent; slightly acid, pH 6.2, chlorophenol red; gradual smooth boundary.; very moist when described; observed in pit, small
    2AB—40 to 68 centimeters (15.7 to 26.8 inches); brown (10YR 4/3) broken face, yellowish brown (10YR 5/4) broken face, dry; silt loam; 23 percent clay; weak medium subangular blocky structure; moderately hard, friable, slightly sticky, moderately plastic; 3.0 medium roots throughout and 2.0 fine roots throughout and 2.0 coarse roots throughout; 2.0 very fine tubular pores; fragments; noneffervescent; slightly acid, pH 6.4, chlorophenol red; gradual smooth boundary.; very moist when described; observed in pit, small
    2C1—68 to 90 centimeters (26.8 to 35.4 inches); brown (10YR 4/3) broken face, yellowish brown (10YR 5/4) broken face, dry; silt loam; 22 percent clay; massive; moderately hard, friable, slightly sticky, moderately plastic; 2.0 medium roots throughout and 2.0 coarse roots throughout; 2.0 very fine tubular pores; 2 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, iron-manganese masses with clear boundaries throughout; fragments; noneffervescent; slightly acid, pH 6.4, chlorophenol red; gradual smooth boundary.; very moist when described; observed in pit, small
    2C2—90 to 125 centimeters (35.4 to 49.2 inches); dark grayish brown (10YR 4/2) broken face, light brownish gray (10YR 6/2) broken face, dry; silt loam; 23 percent clay; massive; moderately hard, friable, slightly sticky, moderately plastic; 1.0 very coarse roots throughout and 2.0 medium roots throughout and 1.0 coarse roots throughout; 2.0 very fine tubular pores; fragments; noneffervescent; slightly acid, pH 6.4, chlorophenol red; clear smooth boundary.; very moist when described; observed in pit, small
    2C3—125 to 160 centimeters (49.2 to 63.0 inches); brown (10YR 4/3) broken face, pale brown (10YR 6/3) broken face, dry; silt loam; 21 percent clay; massive; hard, friable, slightly sticky, moderately plastic; 1.0 very coarse roots throughout and 2.0 medium roots throughout and 1.0 coarse roots throughout; 2.0 very fine tubular pores; 1 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, iron-manganese masses with clear boundaries throughout; fragments; noneffervescent; slightly acid, pH 6.4, chlorophenol red; gradual smooth boundary.; moist when described; observed in pit, small
    2C4—160 to 200 centimeters (63.0 to 78.7 inches); dark grayish brown (10YR 4/2) broken face, light brownish gray (10YR 6/2) broken face, dry; silt loam; 21 percent clay; massive; hard, friable, slightly sticky, moderately plastic; 1.0 medium roots throughout and 1.0 fine roots throughout and 1.0 coarse roots throughout; 4.0 very fine tubular pores; 1 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, iron-manganese masses with clear boundaries throughout; fragments; noneffervescent; slightly acid, pH 6.4, chlorophenol red.; moist when described; observed in pit, small