IDENTIFIERS

  • Current Taxon Name (Soil Name): Knox
  • OSD
  • Series Extent
  • User Site ID: 1990MO053075
  • User Pedon ID: 1990MO053075
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9005375
  • NCSS Pedon Lab Data NASIS Record ID - 30895
  • Print Date: 6/1/2024

    • 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: 38.9602778
  • Std. Longitude: -92.9300000
  • Datum: WGS84
  • Township: T48N
  • Range: R18W
  • Section: 6
  • PLSS Details: 1300' S and 1900' W of the NE corner
  • Map Unit: 10055—Knox silt loam, 5 to 9 percent slopes, eroded
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 112—Cherokee Prairies
  • Non-MLRA Soil Survey Area: MO053—Cooper County, Missouri
  • 7.5 Minute USGS Quad: 38092-H8—Pilot Grove North, Missouri

    • PEDON

  • Describers Name: John L. Baker, Greg Cladwell, David Skaer
  • Current Taxonomic Class: Fine, smectitic, mesic 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 - 3/9/2011
  • Sampled As Information:
  • Soil Name - Lagonda
  • Classificaton Date - 11/22/2005
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: upland
  • Landform: ridge
  • Hill Slope Profile: toeslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/22/2005 (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

    ochric 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

    5

    —

    —

    195

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; silt loam; weak fine granular structure; friable; moderate permeability; 5.0 fine roots; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # MU037764; moist when described; observed in pit, small
    Bt1—18 to 30 centimeters (7.1 to 11.8 inches); dark yellowish brown (10YR 4/4) silty clay loam; weak fine subangular blocky structure; firm; 5.0 very fine roots; 40 percent distinct silt coats on faces of peds and 40 percent distinct clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # MU037765; observed in pit, small
    Bt2—30 to 48 centimeters (11.8 to 18.9 inches); dark yellowish brown (10YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 15 percent distinct silt coats and 70 percent distinct clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.8; gradual smooth boundary. Lab sample # MU037766; observed in pit, small
    Bt3—48 to 74 centimeters (18.9 to 29.1 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent yellowish brown (10YR 5/8) fine prominent and 10 percent grayish brown (10YR 5/2) fine distinct mottles; moderate very fine subangular blocky structure; very firm; 3.0 very fine roots; 70 percent prominent clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.8; gradual smooth boundary. Lab sample # MU037767; observed in pit, small
    Bt4—74 to 99 centimeters (29.1 to 39.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 1 percent yellowish brown (10YR 5/8) fine prominent and 10 percent grayish brown (10YR 5/2) fine distinct mottles; moderate very fine subangular blocky structure; firm; 3.0 very fine roots; 40 percent prominent clay films on faces of peds; 10 percent fine iron-manganese masses; fragments; moderately acid, pH 5.8; gradual smooth boundary. Lab sample # MU037768; observed in pit, small
    Bt5—99 to 127 centimeters (39.0 to 50.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 10 percent yellowish brown (10YR 5/8) fine prominent and 10 percent grayish brown (10YR 5/2) fine distinct mottles; weak fine subangular blocky structure; firm; 0.8 very fine roots; 40 percent distinct clay films on faces of peds; 10 percent fine iron-manganese masses; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # MU037769; observed in pit, small
    Bt6—127 to 152 centimeters (50.0 to 59.8 inches); 50 percent dark yellowish brown (10YR 4/4) and 50 percent grayish brown (10YR 5/2) silty clay loam; 1 percent yellowish brown (10YR 5/8) fine prominent mottles; weak medium subangular blocky structure; firm; 0.8 very fine roots; 40 percent prominent clay films on faces of peds; 10 percent fine iron-manganese masses; fragments; neutral, pH 7.0. Lab sample # MU037770; observed in pit, small