IDENTIFIERS

  • Current Taxon Name (Soil Name): WELLER
  • OSD
  • Series Extent
  • User Site ID: 2007MO183052
  • User Pedon ID: 2007MO183052
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0718352
  • NCSS Pedon Lab Data NASIS Record ID - 26292
  • Print Date: 11/23/2024

    • 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: 38.9121389
  • Std. Longitude: -90.7872222
  • Datum: WGS84
  • PLSS Details: 5,003 feet West and 14,771 feet North from the South East corner of Survey 3035,
  • 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-H7—Maryknoll, Missouri

    • PEDON

  • Describers Name: John Horton, Keith Knelle
  • Current Taxonomic Class: Fine-silty, smectitic, mesic Aquic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 52
  • Sampled As Information:
  • Soil Name - WELLER
  • Taxonomic Class - Fine-silty, smectitic, mesic Aquic Hapludalfs
  • PSC - 33 to 84 cm.
  • Classificaton Date - 11/14/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: river valley
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: very rare flooding for extremely brief periods
  • Ponding: rare ponding for very brief periods
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/14/2007 (actual site observation date)
  • Air Photo ID: 38090h7se
  • 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 sheet
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    redox concentrations

    argillic horizon

    redox depletions with chroma 2 or less

    lithologic discontinuity

    0—18

    18—203

    33—145

    33—145

    145—203

    —18—

    —185—

    —112—

    —112—

    —58—
    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

    —

    —

    143

    —

    355

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); brown (10YR 4/3) broken face silt loam; weak fine subangular blocky structure; friable; 3.0 very fine roots; 3.0 fine interstitial pores; fragments; gradual smooth boundary. Lab sample # MU008508; observed in pit, small
    EB—18 to 33 centimeters (7.1 to 13.0 inches); brown (10YR 5/3) broken face silt loam; weak fine and medium subangular blocky structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine tubular pores; 35 percent prominent light gray (10YR 7/2), moist, silt coats; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU008509; observed in pit, small
    Bt1—33 to 61 centimeters (13.0 to 24.0 inches); brown (10YR 4/3) broken face silty clay loam; moderate fine prismatic structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 3.0 fine tubular pores; 35 percent distinct dark yellowish brown (10YR 4/4), moist, clay films and 70 percent prominent light gray (10YR 7/2), dry, silt coats; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU008510; observed in pit, small
    Bt2—61 to 99 centimeters (24.0 to 39.0 inches); brown (10YR 4/3) broken face silty clay loam; moderate medium prismatic structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 35 percent prominent light gray (10YR 7/2), dry, silt coats and 35 percent prominent dark yellowish brown (10YR 4/4), moist, clay films; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU008511; observed in pit, small
    Bt3—99 to 145 centimeters (39.0 to 57.1 inches); brown (10YR 4/3) broken face silt loam; moderate medium prismatic structure; firm; 0.5 very fine roots throughout; 3.0 fine tubular pores; 12 percent prominent light brownish gray (10YR 6/2), dry, silt coats and 70 percent prominent dark yellowish brown (10YR 4/4), moist, clay films; 1 percent medium faint irregular noncoherent cemented grayish brown (2.5Y 5/2), 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 and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary. Lab sample # MU008512; observed in pit, small
    2C—145 to 175 centimeters (57.1 to 68.9 inches); dark brown (10YR 3/3) broken face fine sandy loam; massive; loose; 10.0 fine interstitial pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU008513; observed in pit, small
    2C—175 to 203 centimeters (68.9 to 79.9 inches); 50 percent yellowish brown (10YR 5/4) broken face and 50 percent grayish brown (10YR 5/2) broken face silt loam; massive; friable; 3.0 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments. Lab sample # MU008514; observed in pit, small