IDENTIFIERS

  • Current Taxon Name (Soil Name): Wilcox
  • OSD
  • Series Extent
  • User Site ID: 89AL023001-pgm
  • User Pedon ID: 89AL023001-pgm
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - AU
  • Lab Pedon # - S89AL-023-1
  • Print Date: 6/3/2024

    • 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: 32.3036111
  • Std. Longitude: -88.0561111
  • Datum: WGS84
  • Township: 15 N
  • Range: 1 W
  • Section: 2
  • PLSS Details: NW1/4
  • Location Description: Edna, Choctaw County, AL; about 700 feet east and 2,000 feet south of the northwest corner of sec. 2, T. 15 N., R. 1 W.; USGS Whitfield topographic quadrangle.
  • State: Alabama
  • County: AL023—Choctaw
  • MLRA: 133A—Southern Coastal Plain
  • Regional Office: 7—Auburn, AL
  • Non-MLRA Soil Survey Area: AL023—Choctaw County, Alabama

    • PEDON

  • Current Taxonomic Class: Very-fine, smectitic, thermic Chromic dystruderts
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Wilcox
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/6/2009
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Wilcox
  • Taxonomic Class - Very-fine, smectitic, thermic Chromic Dystruderts
  • Taxon Kind - series
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/22/1989
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: moderately weathered, clayey marine deposits derived from shale, clayey
  • Landscape: coastal plain
  • Landform: ridge
  • Geomorphic Component Hills: crest
  • Hill Slope Profile: summit
  • Slope Position: middle third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: weakly coherent moderate weathered shale, clayey at 152cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/22/1989 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - crop trees
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    weakly coherent

    152 - 203

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

    ochric epipedon

    argillic horizon

    slickensides

    0—7

    7—89

    33—89

    —7—

    —82—

    —56—
    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

    3

    —

    —

    53

    —

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 7 centimeters (0.0 to 2.8 inches); very dark grayish brown (10YR 3/2) silty clay; 18 percent sand; 42 percent silt; 40 percent clay; moderate coarse subangular blocky structure; firm; 5.0 medium roots throughout and 0.5 fine roots throughout; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # 8923-1-1; moist when described; observed in pit, small
    Bt1—7 to 23 centimeters (2.8 to 9.1 inches); red (2.5YR 4/6) clay; 3 percent sand; 23 percent silt; 74 percent clay; strong medium subangular blocky structure; firm; 5.0 medium roots throughout and 5.0 fine roots throughout and 5.0 coarse roots throughout; 5 percent faint clay films on surfaces along pores and 30 percent pressure faces; fragments; very strongly acid, pH 4.7; clear wavy boundary. Lab sample # 8923-1-2; moist when described; observed in pit, small. patchy - phpvsfiid 1733680; patchy - phpvsfiid 1733680
    Bt2—23 to 33 centimeters (9.1 to 13.0 inches); red (2.5YR 4/6) clay; 3 percent sand; 21 percent silt; 76 percent clay; moderate coarse subangular blocky, and strong fine angular blocky structure; firm; 5.0 medium roots and 5.0 fine roots and 5.0 coarse roots; 5 percent faint clay films on surfaces along pores and 30 percent pressure faces; 1 percent fine faint red (2.5YR 4/8) masses of oxidized iron in matrix and 15 percent fine distinct light brownish gray (10YR 6/2) iron depletions in matrix; fragments; extremely acid, pH 4.4; clear wavy boundary. Lab sample # 8923-1-3; moist when described; observed in pit, small. patchy - phpvsfiid 1733682; patchy - phpvsfiid 1733682
    Btss—33 to 51 centimeters (13.0 to 20.1 inches); red (2.5YR 4/6) clay; 4 percent sand; 19 percent silt; 78 percent clay; moderate coarse subangular blocky, and strong fine angular blocky structure; firm; 5.0 medium roots and 5.0 fine roots; 20 percent distinct slickensides (pedogenic); 2 percent fine distinct strong brown (7.5YR 5/6) masses of oxidized iron in matrix and 30 percent medium distinct gray (10YR 5/1) iron depletions on slickensides; fragments; extremely acid, pH 4.4; clear wavy boundary. Lab sample # 8923-1-4; moist when described; observed in pit, small
    Bssg1—51 to 76 centimeters (20.1 to 29.9 inches); light brownish gray (2.5Y 6/2) clay; 2 percent sand; 24 percent silt; 73 percent clay; moderate coarse subangular blocky, and strong fine angular blocky structure; firm; 0.5 medium roots and 0.5 fine roots; 30 percent slickensides (pedogenic); 2 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron in matrix and 15 percent medium prominent red (2.5YR 4/6) masses of oxidized iron in matrix; fragments; very strongly acid, pH 4.6; clear wavy boundary. Lab sample # 8923-1-5; moist when described; observed in pit, small
    Bssg2—76 to 89 centimeters (29.9 to 35.0 inches); light brownish gray (2.5Y 6/2) clay; 10 percent sand; 19 percent silt; 71 percent clay; weak coarse subangular blocky, and strong fine angular blocky structure; firm; 0.5 very fine roots and 0.5 fine roots; 40 percent slickensides (pedogenic); 10 percent medium prominent red (2.5YR 4/6) masses of oxidized iron in matrix and 20 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron in matrix and 25 percent fine distinct strong brown (7.5YR 5/6) masses of oxidized iron in matrix; 5 percent by volume rounded strongly coherent cemented ironstone nodules fragments and 5 percent by volume flat subrounded weakly coherent cemented shale, acid fragments; very strongly acid, pH 4.6; clear irregular boundary. Lab sample # 8923-1-6; moist when described; observed in pit, small
    C/B—89 to 152 centimeters (35.0 to 59.8 inches); grayish brown (2.5Y 5/2) stratified stratified bedrock to clay; 1 percent sand; 31 percent silt; 68 percent clay; massive, and strong medium platy; very firm; 10 percent medium distinct light olive brown (2.5Y 5/4) masses of oxidized iron around rock fragments and 10 percent coarse distinct masses of oxidized iron in matrix; fragments; extremely acid, pH 4.2; abrupt irregular boundary. Lab sample # 8923-1-7; moist when described; observed in pit, small
    Cr—152 to 203 centimeters (59.8 to 79.9 inches); grayish brown (2.5Y 5/2) bedrock; strong thick platy structure; extremely firm; low excavation difficulty; fragments. Lab sample # 8923-1-8; observed in pit, small