IDENTIFIERS

  • Current Taxon Name (Soil Name): Knox
  • OSD
  • Series Extent
  • User Site ID: 1990MO053066
  • User Pedon ID: 1990MO053066
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9005366
  • NCSS Pedon Lab Data NASIS Record ID - 27164
  • 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: 38.7678611
  • Std. Longitude: -92.7352778
  • Datum: WGS84
  • Township: T46N
  • Range: R17W
  • Section: 12
  • PLSS Details: 1600' S and 2170' E of the NW corner
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • 7.5 Minute USGS Quad: 38092-G6—Lone Elm, Missouri

    • PEDON

  • Describers Name: John L. Baker, Greg Caldwell, David Skaer
  • Current Taxonomic Class: Fine-silty Mollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Knox
  • PSC - 18 to 69 cm.
  • Classificaton Date - 9/16/2010
  • Sampled As Information:
  • Soil Name - Ladoga
  • Classificaton Date - 3/8/2005
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: upland
  • Landform: upland slope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/8/2005 (entry creation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    0—18

    18—152

    —-

    —-
    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

    7

    —

    —

    254

    —

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark brown (10YR 3/3) exterior, grayish brown (10YR 5/2) exterior, dry; silt loam; moderate fine granular structure; friable; moderate permeability; 5.0 fine roots; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # MU014654; moist when described; observed in pit, small
    Bt1—18 to 46 centimeters (7.1 to 18.1 inches); brown (10YR 4/3) exterior silty clay loam; moderate very fine subangular blocky structure; firm; 4.0 very fine roots; 11 percent prominent silt coats and 44 percent distinct clay films on faces of peds; 1 percent fine prominent iron-manganese masses; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # MU014655; observed in pit, small
    Bt2—46 to 69 centimeters (18.1 to 27.2 inches); yellowish brown (10YR 5/4) exterior silty clay loam; 18 percent strong brown (7.5YR 4/6) fine prominent mottles; moderate very fine subangular blocky structure; firm; 4.0 very fine roots; 6 percent distinct silt coats and 50 percent distinct clay films on faces of peds; 18 percent fine iron-manganese masses; fragments; moderately acid, pH 5.7; clear smooth boundary. Lab sample # MU014656; observed in pit, small
    Bt3—69 to 89 centimeters (27.2 to 35.0 inches); yellowish brown (10YR 5/4) exterior silty clay loam; strong brown (7.5YR 5/8) and 15 percent grayish brown (10YR 5/2) fine prominent mottles; weak medium subangular blocky structure; firm; 4.0 very fine roots; 5 percent distinct clay films on faces of peds and 10 percent distinct silt coats; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.7; clear smooth boundary. Lab sample # MU014657; observed in pit, small
    Bt4—89 to 130 centimeters (35.0 to 51.2 inches); yellowish brown (10YR 5/4) exterior silty clay loam; 20 percent strong brown (7.5YR 5/8) fine prominent mottles; weak fine subangular blocky structure; firm; 1.0 very fine roots; 11 percent distinct clay films on faces of peds and 88 percent distinct silt coats; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.7; clear smooth boundary. Lab sample # MU014658; observed in pit, small
    Bt5—130 to 152 centimeters (51.2 to 59.8 inches); yellowish brown (10YR 5/4) exterior silty clay loam; 18 percent strong brown (7.5YR 5/8) fine prominent mottles; weak fine subangular blocky structure; firm; 1.0 very fine roots; 10 percent distinct clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.7. Lab sample # MU014659; observed in pit, small