IDENTIFIERS

  • Current Taxon Name (Soil Name): Tonkawa
  • OSD
  • Series Extent
  • User Site ID: S2010TX3471001
  • User Pedon ID: S2010TX3471001
  • Vegetation Plot ID: S2010TX3471001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 11N0036
  • NCSS Pedon Lab Data NASIS Record ID - 43240
  • Print Date: 3/2/2025

    • 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: 31.8309898
  • Std. Longitude: -94.6077499
  • Datum: WGS84
  • Location Description: Nacogdoches County, Texas; From the intersection of US HWY259 and FM 1087, 4.7 miles east, on north side of road in cut.
  • Map Unit: 59—Tonkawa fine sand, 1 to 8 percent slopes
  • State: Texas
  • County: TX347—Nacogdoches
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: TX347—Nacogdoches County, Texas

    • PEDON

  • Describers Name: Roel Guerra Jr. and Don Sabo
  • Current Taxonomic Class: Thermic, coated Typic Quartzipsamments
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: soil survey inventory
  • Correlated Information:
  • Soil Name - Tonkawa
  • Classificaton Date - 6/7/2013
  • Classifier - Ricky Lambert
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tonkawa
  • Taxonomic Class - Thermic, coated Typic Quartzipsamments
  • Taxon Kind - series
  • Classificaton Date - 9/1/2010
  • Classifier - Roel Guerra Jr. and Don Sabo
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: coastal plain
  • Landform: interfluve
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Geology: Sparta Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/2010 (actual site observation date)
  • Surface Cover Properties:
  • 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

    ANGL2

    CARYA

    PITA

    QUIN

    RHUS

    SMILA2

    SPORO

    TORA2

    Andropogon glomeratus

    Carya

    Pinus taeda

    Quercus incana

    Rhus

    Smilax

    Sporobolus

    Toxicodendron radicans

    bushy bluestem

    hybrid hickory

    loblolly pine

    bluejack oak

    sumac

    greenbrier

    dropseed

    eastern poison ivy

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    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

    7

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    175

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    A—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3) fine sand; weak fine granular structure; soft, very friable; 7.0 very fine roots and 1.0 medium roots and 4.0 fine roots; 4.0 very fine and 5.0 fine pores; fragments; gradual smooth boundary. Lab sample # 11N00208
    Bw1—10 to 52 centimeters (3.9 to 20.5 inches); yellowish brown (10YR 5/6) fine sand; weak fine granular structure; soft, very friable; 5.0 very coarse roots and 2.0 medium roots and 4.0 fine roots; 5.0 very fine and 3.0 fine pores; fragments; gradual smooth boundary. Lab sample # 11N00209
    Bw2—52 to 110 centimeters (20.5 to 43.3 inches); brownish yellow (10YR 6/6) fine sand; weak fine granular structure; soft, very friable; 3.0 very fine roots and 1.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 3.0 very fine and 2.0 fine pores; fragments; gradual wavy boundary. Lab sample # 11N00210
    Bw3—110 to 164 centimeters (43.3 to 64.6 inches); yellowish brown (10YR 5/6) fine sand; weak fine granular structure; soft, very friable; 2.0 very fine roots and 1.0 fine roots; 2.0 very fine and 1.0 fine pores; fragments; gradual smooth boundary. Lab sample # 11N00211
    Bw4—164 to 203 centimeters (64.6 to 79.9 inches); light yellowish brown (10YR 6/4) fine sand; weak fine granular structure; soft, very friable; 3.0 very fine roots and 1.0 fine roots; 2.0 very fine pores; fragments. Lab sample # 11N00212