IDENTIFIERS

  • Current Taxon Name (Soil Name): TRELOAR
  • OSD
  • Series Extent
  • User Site ID: 2007MO183025
  • User Pedon ID: 2007MO183025
  • Vegetation Plot ID: 2007MO183025
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0718325
  • NCSS Pedon Lab Data NASIS Record ID - 26042
  • 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: 38.5977778
  • Std. Longitude: -90.7775000
  • Datum: WGS84
  • PLSS Details: 5,358 feet East and 836 feet South from the South West corner of Survey 1646,
  • 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-E7—Labadie, Missouri

    • PEDON

  • Describers Name: John Horton, Keith Knelle, Dennis Meinert
  • Current Taxonomic Class: Sandy over loamy, mixed, calcareous, mesic Oxyaquic Udifluvents
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 25
  • Correlated Information:
  • Soil Name - TRELOAR
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Rocher
  • Classificaton Date - 4/11/2007
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Holocene Stage loamy alluvium derived from mixed over sandy alluvium derived from mixed over loamy alluvium derived from mixed over sandy alluvium derived from mixed
  • Landscape: river valley
  • Landform: flood-plain step
  • Geomorphic Component Hills: interfluve
  • Slope Complexity: complex
  • Slope Shape Across: undulating
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: moderately well
  • Flooding: frequent flooding for long periods
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/11/2007 (actual site observation date)
  • Air Photo ID: 38090e7ne
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - other tree cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ACNE2

    POPUL

    PLATA

    Acer negundo

    Populus

    Platanus

    boxelder

    cottonwood

    sycamore

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

    ochric epipedon

    lithologic discontinuity

    strongly contrasting particle size class

    aquic conditions

    lithologic discontinuity

    0—36

    36—

    79—

    79—

    109—

    —36—

    —1—

    —1—

    —1—

    —1—
    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

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

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    A1—0 to 20 centimeters (0.0 to 7.9 inches); 70 percent dark grayish brown (2.5Y 4/2) broken face and 30 percent dark gray (2.5Y 4/1) broken face silt loam; weak very fine and fine subangular blocky structure; friable; 3.0 very fine roots; 3.0 fine low-continuity tubular pores; 12 percent distinct black (10YR 2/1), moist, organic stains; fragments; very slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    A2—20 to 36 centimeters (7.9 to 14.2 inches); 80 percent dark greenish gray (10Y 3/1) broken face and 20 percent dark grayish olive (10Y 4/2) broken face fine sandy loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots throughout and 0.5 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 3.0 fine low-continuity tubular pores; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in pit, small
    2C1—36 to 79 centimeters (14.2 to 31.1 inches); 50 percent grayish brown (10YR 5/2) broken face and 50 percent brown (10YR 5/3) broken face stratified loamy fine sand; massive; loose; 3.0 very fine roots throughout and 0.5 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 0.5 very fine interstitial pores; fragments; very slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    2C2—79 to 91 centimeters (31.1 to 35.8 inches); dark grayish brown (10YR 4/2) broken face stratified silt loam; massive; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 3.0 fine low-continuity tubular pores; 1 percent medium faint irregular noncoherent cemented dark brown (7.5YR 3/4), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    2C3—91 to 109 centimeters (35.8 to 42.9 inches); 50 percent dark grayish brown (10YR 4/2) broken face and 50 percent brown (10YR 4/3) broken face stratified very fine sandy loam; massive; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # MU006777; observed in pit, small
    3C4—109 to 152 centimeters (42.9 to 59.8 inches); 50 percent light brownish gray (10YR 6/2) broken face and 50 percent pale brown (10YR 6/3) broken face stratified fine sand; single grain; loose; 3.0 fine interstitial pores; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # MU006778; observed in pit, small
    3C5—152 to 208 centimeters (59.8 to 81.9 inches); 50 percent light brownish gray (10YR 6/2) broken face and 50 percent pale brown (10YR 6/3) broken face stratified fine sand; single grain; loose; 3.0 fine interstitial pores; fragments; slight effervescence, by hcl, 1n. Lab sample # MU006779; observed in pit, small