IDENTIFIERS

  • Current Taxon Name (Soil Name): Yorknorth
  • OSD
  • Series Extent
  • User Site ID: 03CA601148
  • User Pedon ID: 03CA601148
  • Vegetation Plot ID: 03CA601148
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 03N0874
  • NCSS Pedon Lab Data NASIS Record ID - 16287
  • Print Date: 12/17/2024

    • 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: 40.1030556
  • Std. Longitude: -123.7094444
  • Datum: WGS84
  • Location Description: Soil is located on Upper Tooby Ranch near upper entrance.
  • Map Unit: 655—Yorknorth-Witherell complex, 15 to 30 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 5—Siskiyou-Trinity Area
  • Non-MLRA Soil Survey Area: CA601—Humboldt County, South Part, California
  • 7.5 Minute USGS Quad: 40123-A7—Garberville, California

    • PEDON

  • Describers Name: Jonathan W. Hooper
  • Current Taxonomic Class: Fine, mixed, superactive, thermic Oxyaquic Argixerolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 148
  • Correlated Information:
  • Soil Name - Yorknorth
  • PSC - 7 to 57 cm.
  • Classificaton Date - 11/7/2011
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Yorknorth
  • Classificaton Date - 6/3/2003
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from mixed
  • Landscape: mountains
  • Landform: mountain
  • Geomorphic Component Hills: side slope
  • Geomorphic Component Mountains: mountainflank, center third
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Runoff: very high
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Wet Soil Moisture Duration: 120
  • Geology: Franciscan Complex formation of the Central Belt, Franciscan-melange group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/3/2003 (actual site observation date)
  • Air Photo ID: 6246-29
  • Plant Association Name: rangeland
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    AVENA

    CYEC

    DAGL

    LOPEM2

    MEPU

    RUCR

    TACA8

    Avena

    Cynosurus echinatus

    Dactylis glomerata

    Lolium perenne ssp. multiflorum

    Mentha pulegium

    Rumex crispus

    Taeniatherum caput-medusae

    oat

    bristly dogstail grass

    orchardgrass

    Italian ryegrass

    pennyroyal

    curly dock

    medusahead

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    mollic epipedon

    argillic horizon

    aquic conditions

    0—31

    7—112

    50—112

    —-

    —-

    —-
    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

    —

    —

    780

    —

    190

    1500

    —

    260

    14

    —

    —

    17

    —

    —

    —

    —

    —

    —

    —
    A—0 to 7 centimeters (0.0 to 2.8 inches); brown (10YR 4/3) broken face, very dark gray (10YR 3/1) crushed, moist; silt loam; 26 percent clay; moderate medium granular structure; slightly hard, very friable, nonsticky, nonplastic; 4.0 very fine roots throughout; 3 percent by volume nonflat angular indurated 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.5, pH meter; abrupt wavy boundary.; moderately dry when described; observed in pit, small
    Bt1—7 to 31 centimeters (2.8 to 12.2 inches); grayish brown (2.5Y 5/2) broken face, black (2.5Y 2.5/1) crushed, moist; silty clay loam; 33 percent clay; strong coarse prismatic parts to strong medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; 3.0 very fine roots throughout; 1.0 very fine low-continuity tubular pores; 2 percent by volume nonflat angular indurated 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.4, pH meter; clear wavy boundary.; moderately dry when described; observed in pit, small
    Bt2—31 to 51 centimeters (12.2 to 20.1 inches); light brownish gray (2.5Y 6/2) broken face, black (2.5Y 2.5/1) crushed, moist; silty clay loam; 40 percent clay; 2 percent light yellowish brown (10YR 6/4) fine irregular mottles; moderate very coarse prismatic parts to moderate medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 2.0 very fine roots throughout; 3.0 very fine vesicular pores; 3 percent by volume nonflat angular indurated 2-20-75 millimeter sandstone, unspecified fragments; noneffervescent; slightly acid, pH 6.2, pH meter; gradual wavy boundary.; slightly dry when described; observed in pit, small
    Bt3—51 to 112 centimeters (20.1 to 44.1 inches); gray (2.5Y 6/1) broken face, dark gray (5Y 4/1) crushed, moist; silty clay loam; 38 percent clay; 1 percent light yellowish brown (10YR 6/4) fine irregular mottles; massive; extremely hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 3 percent coarse distinct irregular olive brown (2.5Y 4/3), moist, iron-manganese masses with clear boundaries throughout; 1 percent by volume nonflat angular indurated 250-300-600 millimeter sandstone, unspecified fragments and 5 percent by volume nonflat angular indurated 2-20-75 millimeter sandstone, unspecified fragments and 5 percent by volume nonflat angular indurated 75-100-250 millimeter sandstone, unspecified fragments; neutral, pH 7.2, pH meter; gradual wavy boundary.; slightly moist when described; observed in pit, small
    C1—112 to 160 centimeters (44.1 to 63.0 inches); gray (2.5Y 6/1) broken face, dark gray (5Y 4/1) crushed, moist; clay loam; 31 percent clay; massive; extremely hard, firm, moderately sticky, moderately plastic; 5 percent by volume nonflat angular indurated 2-20-75 millimeter sandstone, unspecified fragments; moderately alkaline, pH 7.9, pH meter; gradual wavy boundary.; wet when described; observed in pit, small
    C2—160 to 190 centimeters (63.0 to 74.8 inches); gray (2.5Y 6/1) broken face, dark gray (N 4/0) crushed, moist; paragravelly loam; 25 percent clay; massive; extremely hard, firm, moderately sticky, moderately plastic; 5 percent by volume nonflat subangular indurated 75-100-250 millimeter sandstone, unspecified fragments and 20 percent by volume nonflat angular moderately coherent cemented 2-10-75 millimeter shale, unspecified fragments; moderately alkaline, pH 8.0, pH meter.; wet when described; observed in pit, small