IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaw
  • OSD
  • Series Extent
  • User Site ID: 2004KY145001
  • User Pedon ID: 2004KY145001
  • Vegetation Plot ID: 04KY145001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UK
  • Lab Pedon # - 04KY-145-003
  • NCSS Pedon Lab Data NASIS Record ID - 46353
  • Print Date: 5/20/2024

    • 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: 37.1093000
  • Std. Longitude: -88.6962000
  • Datum: WGS84
  • Location Description: 1/4 mile west of JCT of Interstate 24 and KY Highway 1420, 0.4 miles east of the Highpoint community
  • Map Unit: OkA—Okaw silt loam, 0 to 2 percent slopes, rarely flooded
  • Country: US—United States
  • State: Kentucky
  • County: KY145—McCracken
  • MLRA: 134—Southern Mississippi Valley Loess
  • Regional Office: 7—Auburn, AL
  • MLRA Soil Survey Area: SE-MIL—Milan, Tennessee
  • Non-MLRA Soil Survey Area: KY602—Ballard and McCracken Counties, Kentucky
  • 7.5 Minute USGS Quad: 37088-A6—Paducah West, Kentucky

    • PEDON

  • Describers Name: Jerry McIntosh
  • Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Epiaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Okaw
  • PSC - 20 to 70 cm.
  • Classificaton Date - 11/15/2011
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Okaw
  • Classificaton Date - 11/4/2003
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: thin noncalcareous loess over clayey lacustrine deposits
  • Landscape: river valley
  • Landform: stream terrace
  • Geomorphic Component Terraces: tread
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: low
  • Drainage Class: poorly
  • Flooding: rare flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/4/2003 (actual site observation 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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    GLMA4

    Glycine max

    soybean

    —

    —

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

    ochric epipedon

    aquic conditions

    episaturation

    argillic horizon

    redox depletions with chroma 2 or less

    lithologic discontinuity

    0—20

    0—193

    0—193

    20—213

    20—193

    41—

    —20—

    —193—

    —193—

    —193—

    —173—

    —-
    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

    —

    —

    101.5

    —

    1250

    —

    200

    14.3

    —

    —

    —

    —

    —

    —

    —

    KY6110

    Paducah WSO

    Coop
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); olive brown (2.5Y 4/3) silt loam; moderate fine subangular blocky parts to moderate coarse granular structure; friable; 3.0 fine roots; 2 percent medium distinct light brownish gray (2.5Y 6/2), moist, iron depletions and 5 percent fine prominent black (N 2.5/0), moist, iron-manganese masses and 5 percent fine prominent strong brown (7.5YR 5/6), moist, and strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; slightly acid, pH 6.1, pH meter; abrupt smooth boundary. Lab sample # KY0148; observed in push tube
    Btg1—20 to 41 centimeters (7.9 to 16.1 inches); gray (2.5Y 6/1) silty clay loam; moderate fine and medium subangular blocky structure; firm; 3.0 fine roots; 35 percent faint grayish brown (2.5Y 5/2), moist, clay films on vertical faces of peds; 15 percent medium prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron and 30 percent coarse prominent light olive brown (2.5Y 5/3), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.8, pH meter; clear smooth boundary. Lab sample # KY0149; observed in push tube
    2Btg2—41 to 76 centimeters (16.1 to 29.9 inches); light brownish gray (2.5Y 6/2) silty clay; moderate medium subangular blocky structure; firm; 0.5 fine roots; 70 percent faint grayish brown (2.5Y 5/2), moist, clay films on vertical faces of peds; 15 percent medium prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron and 20 percent medium distinct light yellowish brown (2.5Y 6/4), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.5, pH meter; gradual smooth boundary. Lab sample # KY0150; observed in push tube
    2Btg3—76 to 119 centimeters (29.9 to 46.9 inches); variegated 50 percent gray (2.5Y 6/1) and 50 percent gray (2.5Y 5/1) silty clay; moderate medium prismatic parts to strong medium angular blocky structure; very firm; 0.1 fine roots; 70 percent faint grayish brown (2.5Y 5/2), moist, clay films on vertical faces of peds; 15 percent fine prominent strong brown (7.5YR 4/6), moist, and strong brown (7.5YR 5/6), moist, masses of oxidized iron and 20 percent medium distinct light olive brown (2.5Y 5/4), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.7, pH meter; gradual smooth boundary. Lab sample # KY0151; observed in push tube
    2Btg4—119 to 193 centimeters (46.9 to 76.0 inches); gray (2.5Y 5/1) silty clay; moderate medium prismatic parts to strong medium and coarse angular blocky structure; very firm; 0.1 fine roots; 70 percent faint grayish brown (2.5Y 5/2), moist, clay films on vertical faces of peds; 15 percent fine prominent strong brown (7.5YR 4/6), moist, and strong brown (7.5YR 5/6), moist, masses of oxidized iron and 20 percent medium distinct light olive brown (2.5Y 5/4), moist, masses of oxidized iron; fragments; slightly acid, pH 6.5, pH meter; gradual smooth boundary. Lab sample # KY0152; observed in push tube
    2Bt—193 to 203 centimeters (76.0 to 79.9 inches); variegated 60 percent yellowish brown (10YR 5/6) and 40 percent gray (2.5Y 5/1) silty clay; moderate medium and coarse angular blocky parts to strong fine angular blocky structure; very firm; 25 percent prominent very dark gray (5Y 3/1), moist, organic stains on vertical faces of peds and 70 percent distinct gray (10YR 5/1), moist, clay films on vertical faces of peds; 2 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; slightly alkaline, pH 7.6, pH meter. Lab sample # KY0153; observed in push tube