IDENTIFIERS

  • Current Taxon Name (Soil Name): Blencoe
  • OSD
  • Series Extent
  • User Site ID: 2009MO183004
  • User Pedon ID: 2009MO183004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0918304
  • NCSS Pedon Lab Data NASIS Record ID - 30064
  • 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: 38.8319722
  • Std. Longitude: -90.1694167
  • Datum: WGS84
  • Country: US—United States
  • State: Missouri
  • County: MO183—St. Charles
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO183—St. Charles County, Missouri
  • 7.5 Minute USGS Quad: 38090-G2—Columbia Bottom, Missouri

    • PEDON

  • Describers Name: Grant Butler, Mike Cook, Ralph Tucker
  • Current Taxonomic Class: Clayey over loamy, smectitic, superactive, mesic Aquertic Hapludolls
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 304
  • Correlated Information:
  • Soil Name - Blencoe
  • PSC - 25 to 102 cm.
  • Classificaton Date - 1/31/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Blencoe
  • Classificaton Date - 6/18/2009
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium derived from mixed over loamy alluvium derived from mixed
  • Landscape: river valley
  • Landform: flood-plain step
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Flooding: occasional flooding for long periods
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/18/2009 (actual site observation date)
  • Air Photo ID: 38090g2
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    cambic horizon

    0—43

    43—84

    —43—

    —41—
    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

    —

    —

    126.2

    —

    157

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (2.5Y 3/2) interior, grayish brown (2.5Y 5/2) interior, dry; clay loam; weak very fine and fine subangular blocky structure; friable; 3.0 very fine roots throughout; 3.0 very fine tubular and 3.0 fine tubular pores; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    A—18 to 43 centimeters (7.1 to 16.9 inches); 70 percent very dark gray (10YR 3/1) interior and 30 percent dark grayish brown (10YR 4/2) interior silty clay; moderate fine subangular blocky, and moderate fine prismatic structure; firm; 0.5 very fine roots throughout; 3.0 very fine tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in push tube
    Bg—43 to 84 centimeters (16.9 to 33.1 inches); 70 percent dark grayish brown (10YR 4/2) interior and 30 percent very dark gray (10YR 3/1) interior silty clay; moderate very fine angular blocky, and moderate very fine subangular blocky structure; firm; 10.0 very fine roots throughout; 0.5 very fine tubular and 0.5 fine tubular pores; fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    2Cg1—84 to 155 centimeters (33.1 to 61.0 inches); 50 percent dark grayish brown (10YR 4/2) interior and 50 percent grayish brown (10YR 5/2) interior stratified stratified very fine sandy loam to silt loam; massive; very friable; 0.5 very fine tubular and 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary.; observed in push tube
    2Cg2—155 to 208 centimeters (61.0 to 81.9 inches); 50 percent dark grayish brown (10YR 4/2) interior and 50 percent dark gray (10YR 4/1) interior stratified silt loam; massive; very friable; 3.0 very fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n.; observed in push tube