IDENTIFIERS

  • Current Taxon Name (Soil Name): DECATUR
  • OSD
  • Series Extent
  • User Site ID: S2003AL089005
  • User Pedon ID: S2003AL089005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 03N0926
  • NCSS Pedon Lab Data NASIS Record ID - 15730
  • Print Date: 5/29/2024

    • 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: 34.8937222
  • Std. Longitude: -86.6025000
  • Datum: WGS84
  • Township: 2 South
  • Range: 1 West
  • Section: 2
  • Map Unit: Df—Decatur silty clay loam, 2 to 6 percent slopes, eroded
  • 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-H5—Fisk, Alabama

    • PEDON

  • Describers Name: D. Clendenon, E. Davis
  • Current Taxonomic Class: Fine, kaolinitic, thermic Rhodic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, brief description
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - DECATUR
  • PSC - 5 to 55 cm.
  • Classificaton Date - 5/20/2013
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Decatur
  • Taxonomic Class - Fine, kaolinitic, thermic Rhodic Paleudults
  • Taxon Kind - series
  • PSC - 5 to 55 cm.
  • Classificaton Date - 6/17/2002
  • Classifier - DFC
  • Soil Taxonomic Edition - eleventh edition
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey residuum weathered from limestone
  • Landscape: hills
  • Landform: interfluve
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Pattern: dendritic
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/20/2013 (entry creation date)
  • 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: wind erosion
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Ap

    Bt1

    Bt2

    Bt3

    Bt4

    Bt5

    0

    5

    20

    46

    104

    132

    5

    20

    46

    104

    132

    152

    S03AL-089-005-1

    S03AL-089-005-2

    S03AL-089-005-3

    S03AL-089-005-4

    S03AL-089-005-5

    S03AL-089-005-6

    DFC

    DFC

    DFC

    DFC

    DFC

    DFC

    31.1

    36.7

    48.9

    54.1

    56.5

    56.2

    —

    —

    —

    —

    —

    —

    56.2

    50.2

    43.1

    38.4

    34.6

    33.8

    37.1

    33

    29.6

    27.5

    24.3

    22.6

    19.1

    17.2

    13.5

    10.9

    10.3

    11.2

    12.7

    13.1

    8

    7.5

    8.9

    10

    sieves

    sieves

    sieves

    sieves

    sieves

    sieves

    0.2

    0.3

    0.3

    0.1

    0.1

    0.2

    0.9

    1.1

    0.4

    0.3

    0.6

    0.7

    1.3

    1.5

    0.8

    0.6

    0.7

    1.1

    5

    4.6

    3.3

    3

    3.4

    4

    5.3

    5.6

    3.2

    3.5

    4.1

    4

    300 mesh sieve

    300 mesh sieve

    300 mesh sieve

    300 mesh sieve

    300 mesh sieve

    300 mesh sieve

    sicl

    sicl

    sic

    c

    c

    c

    —

    —

    —

    —

    —

    —

    —

    —

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    6.7

    7.4

    7.3

    7.1

    5.1

    5.1
    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Ap

    Bt1

    Bt2

    Bt3

    Bt4

    Bt5

    0

    5

    20

    46

    104

    132

    5

    20

    46

    104

    132

    152

    S03AL-089-005-1

    S03AL-089-005-2

    S03AL-089-005-3

    S03AL-089-005-4

    S03AL-089-005-5

    S03AL-089-005-6

    6.3

    6.8

    6.7

    6.4

    4.4

    4.4

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Ap

    Bt1

    Bt2

    Bt3

    Bt4

    Bt5

    0

    5

    20

    46

    104

    132

    5

    20

    46

    104

    132

    152

    S03AL-089-005-1

    S03AL-089-005-2

    S03AL-089-005-3

    S03AL-089-005-4

    S03AL-089-005-5

    S03AL-089-005-6

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

    ochric epipedon

    argillic horizon

    0—5

    5—152

    —5—

    —147—
    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

    37

    —

    240.8

    —

    180

    —

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    2078

    Bragg Farm

    SCAN
    Ap—0 to 5 centimeters (0.0 to 2.0 inches); dark reddish brown (5YR 3/3) silty clay loam; 12 percent sand; 35 percent clay; moderate medium and coarse granular structure; very hard, friable; 6.0 very fine roots throughout; 6.0 very fine and fine pores; 2 percent fine very strongly coherent cemented very dark grayish brown (10YR 3/2) iron-manganese concretions with sharp boundaries; 2 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04772; observed in pit, small
    Bt1—5 to 20 centimeters (2.0 to 7.9 inches); dark reddish brown (2.5YR 3/4) silty clay; 12 percent sand; 45 percent clay; moderate coarse subangular blocky structure; very hard, friable; 5.0 very fine roots throughout; 6.0 very fine and fine pores; 5 percent distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 2 percent fine very strongly coherent cemented very dark grayish brown (10YR 3/2) iron-manganese concretions with sharp boundaries; 2 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04773; observed in pit, small. The iron-manganese nodules are relict, and not due to redox or the presence of water.
    Bt2—20 to 46 centimeters (7.9 to 18.1 inches); dark red (2.5YR 3/6) clay; 10 percent sand; 50 percent clay; moderate medium angular blocky structure; very hard, friable; 3.0 very fine roots between peds and 3.0 very fine roots in cracks; 3.0 very fine and fine pores; 25 percent distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 2 percent fine very strongly coherent cemented very dark grayish brown (10YR 3/2) iron-manganese concretions with sharp boundaries; 1 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04774; observed in pit, small. The iron-manganese nodules are relict, and not due to redox or the presence of water.
    Bt3—46 to 104 centimeters (18.1 to 40.9 inches); dark red (2.5YR 3/6) clay; 10 percent sand; 50 percent clay; moderate medium and coarse angular blocky structure; very hard, friable; 3.0 very fine roots in cracks and 3.0 very fine roots between peds; 3.0 very fine and fine pores; 25 percent distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 1 percent fine very dark grayish brown (10YR 3/2) iron-manganese concretions; 1 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04775; observed in pit, small. The iron-manganese nodules are relict, and not due to redox or the presence of water.
    Bt4—104 to 132 centimeters (40.9 to 52.0 inches); dark red (2.5YR 3/6) clay; 10 percent sand; 45 percent clay; moderate medium and coarse angular blocky structure; friable; 1.0 very fine roots between peds; 3.0 very fine and fine pores; 20 percent distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 1 percent fine very strongly coherent cemented very dark grayish brown (10YR 3/2) with sharp boundaries; 2 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04776; observed in pit, small
    Bt5—132 to 152 centimeters (52.0 to 59.8 inches); red (2.5YR 4/6) clay; 10 percent sand; 42 percent clay; moderate medium and coarse angular blocky structure; friable; 1.0 very fine roots between peds; 3.0 very fine and fine pores; 15 percent distinct dark reddish brown (2.5YR 3/4) clay films on all faces of peds; 5 percent by volume nonflat 2-?-5 millimeter unspecified fragments. Lab sample # 03N04777; observed in pit, small