IDENTIFIERS

  • Current Taxon Name (Soil Name): Kellison
  • OSD
  • Series Extent
  • User Site ID: S2009TX225001
  • User Pedon ID: S2009TX225001
  • Vegetation Plot ID: S2009TX225001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Print Date: 12/7/2025

    • 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: 31.2929974
  • Std. Longitude: -95.1450729
  • Datum: WGS84
  • Location Description: Kellison OSD
  • State: Texas
  • County: TX225—Houston
  • MLRA: 133B—Western Coastal Plain

    • PEDON

  • Describers Name: K. Grifith, J. Bolin, D. Sabo, R. Lambert, Larry Kichler, C. Edwards
  • Current Taxonomic Class: Fine, smectitic, thermic Vertic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Sampled As Information:
  • Soil Name - Kellison
  • Taxonomic Class - Fine, smectitic, thermic Vertic Hapludalfs
  • PSC - 14 to 64 cm.
  • Classificaton Date - 5/14/2009
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified


    • SITE

  • Parent Material: moderately weathered, clayey residuum weathered from mudstone
  • Landscape: coastal plain
  • Landform: interfluve
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very high
  • Drainage Class: well
  • Bedrock: mudstone
  • Geology: Yegua formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/14/2009 (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 -
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CAAM2

    CARYA

    CHLAS

    CRATA

    ILVO

    PIEC2

    PITA

    QUERC

    QUST

    SMILA2

    TORA2

    ULAL

    VITIS

    Callicarpa americana

    Carya

    Chasmanthium laxum var. sessiliflorum

    Crataegus

    Ilex vomitoria

    Pinus echinata

    Pinus taeda

    Quercus

    Quercus stellata

    Smilax

    Toxicodendron radicans

    Ulmus alata

    Vitis

    American beautyberry

    hybrid hickory

    —

    hawthorn

    yaupon

    shortleaf pine

    loblolly pine

    oak

    post oak

    greenbrier

    eastern poison ivy

    winged elm

    grape

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    densic material

    weakly coherent

    120 - 203

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

    ochric epipedon

    argillic horizon

    slickensides

    densic contact

    densic materials

    0—8

    14—120

    43—102

    120—

    120—203

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    —-

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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

    9

    —

    —

    97.6

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    A—0 to 8 centimeters (0.0 to 3.1 inches); grayish brown (10YR 5/2) silt loam; 10 percent light brownish gray (10YR 6/2) medium faint irregular mottles; weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 2.0 medium roots throughout and 4.0 fine roots throughout; 5.0 very fine low-continuity interstitial pores; 6 percent by volume nonflat angular indurated 2-?-5 millimeter quartzite fragments and 10 percent by volume nonflat angular indurated 5-?-20 millimeter quartzite fragments; clear wavy boundary.
    E—8 to 18 centimeters (3.1 to 7.1 inches); light brownish gray (10YR 6/2) gravelly silt loam; weak medium prismatic parts to weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 1.0 very coarse roots throughout and 4.0 medium roots throughout and 3.0 fine roots throughout and 3.0 coarse roots throughout; 2.0 fine moderate-continuity irregular pores; 10 percent by volume flat angular indurated 2-?-5 millimeter quartzite fragments and 15 percent by volume flat angular indurated 5-?-20 millimeter chert fragments; gradual wavy boundary.
    Bt—18 to 56 centimeters (7.1 to 22.0 inches); brown (10YR 5/3) gravelly silty clay loam; 5 percent yellowish brown (10YR 5/6) medium distinct reticulate mottles; moderate medium angular blocky structure; hard, firm, moderately sticky, moderately plastic; 3.0 very fine roots between peds and 1.0 very coarse roots between peds and 4.0 medium roots between peds and 3.0 fine roots between peds and 4.0 coarse roots between peds; 1.0 fine low-continuity tubular pores; 3 percent distinct very pale brown (10YR 7/3), moist, silt coats on all faces of peds and 20 percent distinct brown (10YR 5/3), moist, clay films on all faces of peds; fragments; gradual wavy boundary. discontinuous - phpvsfiid 458839; continuous - phpvsfiid 458838; discontinuous - phpvsfiid 458839; continuous - phpvsfiid 458838
    Bt2—24 to 43 centimeters (9.4 to 16.9 inches); brown (10YR 5/3) clay; 5 percent yellowish brown (10YR 5/6) medium distinct reticulate mottles; weak medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 2.0 very fine roots between peds and 1.0 medium roots between peds and 3.0 fine roots between peds; 1.0 fine moderate-continuity tubular pores; 10 percent distinct brown (10YR 5/3), moist, pressure faces on all faces of peds and 30 percent distinct brown (10YR 5/3), moist, clay films on all faces of peds; fragments; gradual wavy boundary. continuous - phpvsfiid 458840; continuous - phpvsfiid 458841; continuous - phpvsfiid 458840; continuous - phpvsfiid 458841
    Btss1—56 to 76 centimeters (22.0 to 29.9 inches); light olive brown (2.5Y 5/3) clay; moderate coarse prismatic parts to moderate medium angular blocky structure; extremely hard, extremely firm, very sticky, very plastic; very fine roots between peds and 3.0 fine roots between peds; 1.0 very fine low-continuity tubular pores; 20 percent distinct light olive brown (2.5Y 5/3), moist, clay films on all faces of peds and 30 percent prominent light olive brown (2.5Y 5/3), moist, slickensides (pedogenic) on all faces of peds and 40 percent prominent light olive brown (2.5Y 5/3), moist, pressure faces on all faces of peds; 1 percent by volume flat angular indurated 5-?-20 millimeter quartzite fragments; gradual wavy boundary. continuous - phpvsfiid 458835; continuous - phpvsfiid 458836; continuous - phpvsfiid 458837; continuous - phpvsfiid 458835; continuous - phpvsfiid 458836; continuous - phpvsfiid 458837
    Btss2—76 to 99 centimeters (29.9 to 39.0 inches); light olive brown (2.5Y 5/3) clay; weak coarse prismatic parts to weak medium angular blocky structure; extremely hard, extremely firm, very sticky, very plastic; 1.0 very fine roots between peds and 2.0 fine roots between peds; 1.0 fine low-continuity tubular pores; 3 percent distinct light olive brown (2.5Y 5/3), moist, slickensides (pedogenic) on all faces of peds and 5 percent distinct light olive brown (2.5Y 5/3), moist, clay films on all faces of peds and 5 percent prominent light olive brown (2.5Y 5/3), moist, pressure faces on all faces of peds; fragments; gradual wavy boundary. continuous - phpvsfiid 458832; continuous - phpvsfiid 458833; continuous - phpvsfiid 458834; continuous - phpvsfiid 458832; continuous - phpvsfiid 458833; continuous - phpvsfiid 458834
    Btss3—99 to 119 centimeters (39.0 to 46.9 inches); light olive brown (2.5Y 5/3) clay; weak coarse prismatic parts to weak medium angular blocky structure; extremely hard, extremely firm, very sticky, very plastic; 1.0 very fine roots between peds and 2.0 fine roots between peds; 1.0 fine low-continuity tubular pores; 3 percent distinct light olive brown (2.5Y 5/3), moist, slickensides (pedogenic) on all faces of peds and 5 percent distinct light olive brown (2.5Y 5/3), moist, clay films on all faces of peds and 5 percent prominent light olive brown (2.5Y 5/3), moist, pressure faces on all faces of peds; fragments; gradual wavy boundary. continuous - phpvsfiid 1924684; continuous - phpvsfiid 1924685; continuous - phpvsfiid 1924686; continuous - phpvsfiid 1924684; continuous - phpvsfiid 1924685; continuous - phpvsfiid 1924686
    C—119 to 203 centimeters (46.9 to 79.9 inches); light olive brown (2.5Y 5/3); strong fine angular blocky structure; extremely hard, extremely firm, very sticky, very plastic; 1.0 very fine roots around fragments; 1.0 fine low-continuity vesicular pores; ; fragments; clear smooth boundary. Less than 1 percent barite masses 2 to 5 mm along root channels.