IDENTIFIERS

  • Current Taxon Name (Soil Name): TOKUL
  • OSD
  • Series Extent
  • User Site ID: S1998WA061002
  • User Pedon ID: S1998WA061002
  • Vegetation Plot ID: S1998WA061002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 98P0398
  • NCSS Pedon Lab Data NASIS Record ID - 10668
  • Print Date: 3/2/2025

    • 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: 47.7513885
  • Std. Longitude: -121.8719406
  • Datum: WGS84
  • Township: 26N
  • Range: 7E
  • Section: 11
  • PLSS Details: 2,520 feet west and 2,280 feet north of southeast corner
  • State: Washington
  • County: WA061—Snohomish
  • Non-MLRA Soil Survey Area: WA661—Snohomish County Area, Washington

    • PEDON

  • Describers Name: H. R. Gentry, C. S. Natsuhara
  • Current Taxonomic Class: Medial, amorphic, mesic Aquic Vitrixerands
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - TOKUL
  • Taxonomic Class - Medial, amorphic, mesic Aquic Vitrixerands
  • PSC - 25 to 94 cm.
  • Classificaton Date - 6/1/1998
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: ground moraine
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1998 (actual site observation date)
  • 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

    ACCI

    ACMA3

    ALRU2

    POMU

    PSME

    RUUR

    THPL

    TSHE

    VACCI

    Acer circinatum

    Acer macrophyllum

    Alnus rubra

    Polystichum munitum

    Pseudotsuga menziesii

    Rubus ursinus

    Thuja plicata

    Tsuga heterophylla

    Vaccinium

    vine maple

    bigleaf maple

    red alder

    western swordfern

    Douglas-fir

    California blackberry

    western redcedar

    western hemlock

    blueberry

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

    ochric epipedon

    cambic horizon

    5—10

    5—94

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    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

    3

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    250

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    180

    152

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    10

    15

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    11

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Forest litter of leaves and twigs.
    Oa—3 to 5 centimeters (1.2 to 2.0 inches);, very dark brown (10YR 2/2), moist; fragments. Decomposed litter.
    A—5 to 10 centimeters (2.0 to 3.9 inches); dark gray (10YR 4/1), black (10YR 2/1), moist; gravelly loam; weak medium granular structure; soft, very friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots and 0.5 medium roots; 21.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; abrupt wavy boundary. Few fine and medium charcoal fragments; few fine charcoal fragments; NaF pH 9.5
    Bs1—10 to 30 centimeters (3.9 to 11.8 inches); brown (10YR 4/3), dark brown (7.5YR 3/3), moist; gravelly loam; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; weakly smeary; 0.5 very fine and fine roots; 21.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.4, hellige-truog; clear wavy boundary. Lab sample # 98P02298. Common dark reddish brown (5YR 3/4) fine, medium and coarse irregular iron concentrations and coatings on pebbles; few fine charcoal fragments; NaF pH 11.0
    Bs2—30 to 48 centimeters (11.8 to 18.9 inches); yellowish brown (10YR 5/4), dark brown (7.5YR 3/4), moist; gravelly loam; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; weakly smeary; 0.5 very fine and fine roots; 21.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.4, hellige-truog; clear wavy boundary. Lab sample # 98P02299. Many dark reddish brown (5YR 3/4) fine, medium and coarse irregular iron concentrations and coating on pebbles; NaF pH 11.0
    Bs3—48 to 66 centimeters (18.9 to 26.0 inches); pale brown (10YR 6/3), dark brown (7.5YR 3/4), moist; gravelly loam; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; weakly smeary; 0.5 very fine and fine roots; 21.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 98P02300. Common dark reddish brown (5YR 3/4) fine medium and coarse irregular concentrations and coatings on pebbles; NaF pH 10.5
    BC—66 to 94 centimeters (26.0 to 37.0 inches); pale brown (10YR 6/3), dark yellowish brown (10YR 3/4), moist; gravelly loam; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; weakly smeary; 0.5 very fine roots and fine and medium roots; 21.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary. NaF pH 10.5
    2Bsm1—94 to 104 centimeters (37.0 to 40.9 inches); light yellowish brown (2.5Y 6/3), dark gray (2.5Y 4/1), moist; very gravelly sandy loam; massive; hard when dry, very firm, weakly coherent, nonsticky, nonplastic; 5 percent by volume 75-162-250 millimeter unspecified fragments and 35 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.6, hellige-truog; clear wavy boundary. 1 to 2 millimeter dark brown (7.5YR 3/4) iron concentrations on surface of horizon and common dark brown (7.5YR 3/4) iron concentrations around rock fragments and in vertical and horizontal seams.
    2Bsm2—104 to 152 centimeters (40.9 to 59.8 inches); light brownish gray (2.5Y 6/2), dark gray (2.5Y 4/1), moist; very gravelly sandy loam; moderately hard, firm, very weakly coherent, nonsticky, nonplastic; 5 percent by volume 75-162-250 millimeter unspecified fragments and 35 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.6, hellige-truog.