IDENTIFIERS

  • Current Taxon Name (Soil Name): Decatur
  • OSD
  • Series Extent
  • User Site ID: 2001AL089005
  • User Pedon ID: 01AL089005-pgm
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - AU
  • Lab Pedon # - S01AL-089-5
  • Print Date: 1/29/2025

    • 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: 34.6635556
  • Std. Longitude: -86.6648333
  • Datum: WGS84
  • Township: 4 S
  • Range: 1 W
  • Section: 30
  • PLSS Details: SE1/4 NE1/4 section 30
  • Location Description: From intersection of Rideout and Marshall Rds., about 750 feet east on Marshall Rd., about 150 feet north into a pasture; Redstone Arsenal, Madison Co., AL; USGS Madison, AL topographic quadrangle.
  • State: Alabama
  • County: AL089—Madison
  • MLRA: 128—Southern Appalachian Ridges and Valleys
  • MLRA Soil Survey Area: SE-NOR—Normal, Alabama
  • Non-MLRA Soil Survey Area: AL089—Madison County, Alabama
  • 7.5 Minute USGS Quad: 34086-F6—Madison, Alabama

    • PEDON

  • Current Taxonomic Class: Fine, kaolinitic, thermic Rhodic paleudalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Correlated Information:
  • Soil Name - Decatur
  • PSC - 15 to 65 cm.
  • Classificaton Date - 2/24/2009
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Decatur
  • Classificaton Date - 8/29/2001
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: strongly weathered, clayey residuum weathered from limestone, argillaceous
  • Landscape: upland
  • Landform: ridge
  • Geomorphic Component Hills: crest
  • Hill Slope Profile: summit
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/29/2001 (actual site observation date)
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • 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—15

    15—203

    —15—

    —188—
    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

    4

    —

    —

    210

    —

    1346

    —

    200

    16

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark reddish brown (5YR 3/3); 39 percent sand; 39 percent silt; 22 percent clay; weak medium granular structure; friable; 6.0 very fine roots and 6.0 fine roots; 1 percent fine spherical black (10YR 2/1) iron-manganese concretions; fragments; neutral, pH 6.7; abrupt smooth boundary. Lab sample # 01089-5-1; observed in pit, small
    Bt1—15 to 41 centimeters (5.9 to 16.1 inches); dark reddish brown (2.5YR 3/4); 19 percent sand; 39 percent silt; 41 percent clay; moderate medium subangular blocky structure; firm; 4.0 very fine roots; 25 percent faint clay films on all faces of peds; 1 percent medium black (10YR 2/1) manganese coatings on faces of peds and 2 percent fine spherical black (10YR 2/1) iron-manganese concretions; 5 percent dark reddish brown (2.5YR 3/4) worm casts; fragments; neutral, pH 7.1; gradual smooth boundary. Lab sample # 01089-5-2; observed in pit, small. discontinuous - phpvsfiid 1666673; discontinuous - phpvsfiid 1666673
    Bt2—41 to 66 centimeters (16.1 to 26.0 inches); dark red (2.5YR 3/6); 20 percent sand; 30 percent silt; 50 percent clay; moderate medium angular blocky structure; firm; 4.0 very fine roots; distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 2 percent fine spherical black (10YR 2/1) iron-manganese concretions and 5 percent medium black (10YR 2/1) manganese coatings on faces of peds; fragments; neutral, pH 7.2; gradual smooth boundary. Lab sample # 01089-5-3; observed in pit, small. continuous - phpvsfiid 1666674; continuous - phpvsfiid 1666674
    Bt3—66 to 107 centimeters (26.0 to 42.1 inches); dark red (2.5YR 3/6); 19 percent sand; 25 percent silt; 56 percent clay; moderate medium angular blocky structure; firm; 1.0 very fine roots; distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 1 percent medium black (10YR 2/1) manganese coatings on faces of peds and 2 percent fine spherical black (10YR 2/1) iron-manganese concretions; fragments; neutral, pH 7.1; diffuse smooth boundary. Lab sample # 01089-5-4; observed in pit, small. continuous - phpvsfiid 1666675; continuous - phpvsfiid 1666675
    Bt4—107 to 155 centimeters (42.1 to 61.0 inches); dark red (2.5YR 3/6); 22 percent sand; 23 percent silt; 55 percent clay; moderate coarse angular blocky structure; firm; 0.5 very fine roots; distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 1 percent fine spherical black (10YR 2/1) iron-manganese concretions; fragments; very strongly acid, pH 4.7; diffuse smooth boundary. Lab sample # 01089-5-5; observed in pit, small. continuous - phpvsfiid 1666676; continuous - phpvsfiid 1666676
    Bt5—155 to 203 centimeters (61.0 to 79.9 inches); red (2.5YR 4/6); 28 percent sand; 25 percent silt; 47 percent clay; moderate coarse angular blocky structure; firm; distinct clay films on vertical faces of peds; 1 percent fine spherical black (10YR 2/1) iron-manganese concretions; fragments; very strongly acid, pH 4.9. Lab sample # 01089-5-6; observed in pit, small. continuous - phpvsfiid 1666677; continuous - phpvsfiid 1666677