IDENTIFIERS

  • Current Taxon Name (Soil Name): Una
  • OSD
  • Series Extent
  • User Site ID: AR053 Una TP
  • User Pedon ID: 03AR053 Una TP
  • User Site Association ID: ar053
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 03N1031
  • NCSS Pedon Lab Data NASIS Record ID - 16261
  • Print Date: 2/1/2025

    • 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: 34.1971397
  • Std. Longitude: -92.5664749
  • Datum: WGS84
  • Township: 6 South
  • Range: 14 West
  • Section: 18
  • PLSS Details: NW 1/4 NE 1/4 SW 1/4
  • Location Description: in wooded area, Grant County, Arkansas
  • Map Unit: 17A—Una silty clay loam, 0 to 1 percent slopes, frequently flooded
  • State: Arkansas
  • County: AR053—Grant
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: AR053—Grant County, Arkansas
  • 7.5 Minute USGS Quad: 34092-B5—Leola, Arkansas

    • PEDON

  • Describers Name: Larry Kichler, Leodis Williams, Ken Crader, Leslie J. Glover II
  • Current Taxonomic Class: Fine, mixed, active, acid, thermic Typic Epiaquepts
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 46
  • Correlated Information:
  • Soil Name - Una
  • Classificaton Date - 3/20/2008
  • Soil Taxonomic Edition - eighth edition
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Una
  • Classificaton Date - 7/10/2003
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3


    • SITE

  • Parent Material: clayey alluvium
  • Landform: flood plain
  • Geomorphic Component Flats: talf
  • Runoff: low
  • Drainage Class: poorly
  • Flooding: frequent flooding for long periods begining in jan
  • Geology: Holocene Aged formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/10/2003 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • 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

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    A—0 to 5 centimeters (0.0 to 2.0 inches); very dark grayish brown (10YR 3/2) broken face silty clay loam; moderate medium granular structure; firm, slightly sticky, slightly plastic; very slow permeability; 10.0 fine roots throughout; fragments; strongly acid, pH 5.5, hellige-truog; abrupt smooth boundary.; moist when described; observed in pit, small
    Bgc1—5 to 28 centimeters (2.0 to 11.0 inches); gray (10YR 5/1) broken face silty clay; moderate fine subangular blocky structure; very firm, slightly sticky, slightly plastic; very slow permeability; 10.0 medium roots throughout and 10.0 fine roots throughout; 2 percent fine prominent irregular moderately coherent cemented black (10YR 2/1), moist, manganese masses with clear boundaries throughout and 15 percent medium prominent irregular noncoherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; fragments; very strongly acid, pH 4.5, hellige-truog; gradual wavy boundary.; moist when described; observed in pit, small
    Bgc2—28 to 81 centimeters (11.0 to 31.9 inches); gray (10YR 6/1) broken face silty clay; 17 percent sand; 47 percent silt; 36 percent clay; moderate fine subangular blocky structure; very firm, slightly sticky, slightly plastic; very slow permeability; 0.5 medium roots throughout; 2 percent fine prominent spherical moderately coherent cemented black (10YR 2/1), moist, manganese masses with clear boundaries throughout and 10 percent medium prominent irregular noncoherent cemented strong brown (7.5YR 4/6), moist, masses of oxidized iron with clear boundaries throughout and 10 percent medium prominent irregular noncoherent cemented reddish yellow (7.5YR 6/8), moist, and yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; fragments; very strongly acid, pH 4.5, hellige-truog; gradual wavy boundary.; moist when described; observed in pit, small
    Bgc3—81 to 137 centimeters (31.9 to 53.9 inches); light brownish gray (2.5Y 6/2) broken face clay; 16 percent sand; 44 percent silt; 40 percent clay; moderate fine subangular blocky structure; very firm, slightly sticky, slightly plastic; very slow permeability; 2 percent fine prominent irregular moderately coherent cemented manganese masses with clear boundaries throughout and 10 percent medium prominent irregular noncoherent cemented olive yellow (2.5Y 6/8), moist, and strong brown (7.5YR 4/6), moist, masses of oxidized iron with clear boundaries throughout; fragments; very strongly acid, pH 4.5, hellige-truog; gradual wavy boundary.; moist when described; observed in pit, small
    Bgc4—137 to 203 centimeters (53.9 to 79.9 inches); gray (2.5Y 6/1) broken face clay; moderate medium angular blocky structure; very firm, slightly sticky, slightly plastic; very slow permeability; 10 percent medium prominent irregular noncoherent cemented olive yellow (2.5Y 6/6), moist, and yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; 2 percent fine faint threadlike weakly coherent cemented gypsum crystals, unspecified with clear boundaries throughout; fragments; very strongly acid, pH 4.5, hellige-truog.; moist when described; observed in pit, small