IDENTIFIERS

  • Current Taxon Name (Soil Name): Mantachie
  • OSD
  • Series Extent
  • User Site ID: S2018AL023022
  • User Pedon ID: S2018AL023022
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 18N2059
  • User Project ID: LENO_008_NEON
  • Project Name: Lenoir Landing
  • Print Date: 4/21/2026

    • 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: 31.8154167
  • Std. Longitude: -88.2043333
  • Datum: WGS84
  • Township: 10N
  • Range: 2W
  • Section: 20
  • PLSS Details: SE 1/4, SW 1/4
  • Map Unit: UrB—Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently flooded
  • Country: US—United States
  • State: Alabama
  • County: AL023—Choctaw
  • MLRA: 133A—Southern Coastal Plain
  • Regional Office: 7—Auburn, AL
  • MLRA Soil Survey Area: SE-MER—Meridian, Mississippi
  • Non-MLRA Soil Survey Area: AL023—Choctaw County, Alabama
  • 7.5 Minute USGS Quad: 31088-G2—Coffeeville Lock And Dam, Alabama

    • PEDON

  • Describers Name: J. Velazquez, M. Williams, S. Depew, M. Singer
  • Current Taxonomic Class: Fine-loamy, siliceous, active, acid, thermic Fluventic Endoaquepts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: ecological site data
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Mantachie
  • Taxonomic Class - Fine-loamy, siliceous, active, acid, thermic Fluventic Endoaquepts
  • Taxon Kind - series
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/27/2018
  • Classifier - J.Velazquez-Garcia
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loamy alluvium
  • Landscape: river valley
  • Landform: flood plain
  • Geomorphic Component Flats: rise
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Drainage Pattern: deranged
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: frequent flooding for brief periods
  • Ponding: occasional ponding for very brief periods
  • Geology: Qalt formation.
  • Surface Fragments:
  • Benchmark Soil?: no
  • RaCA Information:
  • RaCA Site ID - LENO_022
  • DSP Plot ID - SW
  • Plot Baseline Azimuth - 225
  • Plot Baseline Length - 2
  • Plot Width - 20
  • Plot/Site Set Up By - Center or pit
  • Plot or Site Recorder - M. Williams, J. Velazquez, S. Depew, M. Singer

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/25/2018 (actual site observation date)
  • Data Collector: J. Velazquez, M. Williams, S. Depew, M. Singer
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • 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

    redox concentrations

    cambic horizon

    redox depletions with chroma 2 or less

    0—10

    0—100

    10—100

    10—100

    —10—

    —100—

    —90—

    —100—
    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

    2

    —

    —

    11

    —

    90

    1429

    —

    —

    18

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3) loam; weak fine subangular blocky, and weak medium subangular blocky structure; friable, nonsticky, nonplastic; deformable; many (10.0) medium roots throughout and many (10.0) fine roots throughout; 1 percent fine distinct irregular noncoherent cemented reddish yellow (7.5YR 6/6), moist, masses of oxidized iron with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # 18N06231; moist when described; observed in pit, small
    Bw—10 to 42 centimeters (3.9 to 16.5 inches); variegated 40 percent light brownish gray (10YR 6/2) and 30 percent brownish yellow (10YR 6/6) and 30 percent yellowish brown (10YR 5/8) clay loam; weak coarse subangular blocky structure; friable, nonsticky, nonplastic; deformable; common (3.0) medium roots throughout and common (3.0) fine roots throughout and few (0.5) coarse roots throughout; 15 percent fine prominent irregular noncoherent cemented yellowish red (5YR 5/8), moist, masses of oxidized iron with sharp boundaries in matrix and 30 percent medium distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, masses of oxidized iron with clear boundaries in matrix and 40 percent medium faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, iron depletions with clear boundaries in matrix; fragments; gradual wavy boundary. Lab sample # 18N06232; moist when described; observed in pit, small
    Bg—42 to 100 centimeters (16.5 to 39.4 inches); light brownish gray (10YR 6/2) very fine sandy loam; weak coarse subangular blocky structure; friable, nonsticky, nonplastic; deformable; common (3.0) medium roots throughout and common (3.0) fine roots throughout and few (0.5) coarse roots throughout; 15 percent fine prominent irregular noncoherent cemented strong brown (7.5YR 5/8), moist, masses of oxidized iron with clear boundaries in matrix and 30 percent medium distinct irregular noncoherent cemented yellowish brown (10YR 5/8), moist, masses of oxidized iron with clear boundaries in matrix; fragments. Lab sample # 18N06233; moderately moist when described; observed in pit, small