IDENTIFIERS

  • Current Taxon Name (Soil Name): Zavco
  • OSD
  • Series Extent
  • User Site ID: S11TX3111010
  • User Pedon ID: S11TX3111010
  • Vegetation Plot ID: S11TX3111010
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 11N7193
  • NCSS Pedon Lab Data NASIS Record ID - 50879
  • 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: 28.5576916
  • Std. Longitude: -98.6790009
  • Datum: WGS84
  • State: Texas
  • County: TX311—McMullen
  • MLRA: 83B—Western Rio Grande Plain
  • 7.5 Minute USGS Quad: 28098-E6—Pertle Creek, Texas

    • PEDON

  • Describers Name: Clark Harshbarger, Gary Harris, Richard Gelnar, Jim Akin, Joe Neal, David Hinojosa
  • Current Taxonomic Class: Fine, smectitic, superactive, hyperthermic Calcidic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Correlated Information:
  • Soil Name - Zavco
  • Classificaton Date - 5/11/2011
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Zavco
  • Classificaton Date - 2/9/2011
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-loamy alluvium over strongly weathered, clayey residuum weathered from mudstone
  • Landscape: coastal plain
  • Landform: interfluve
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Bedrock: noncoherent strong weathered mudstone at 170cm
  • Geology: Yeagua Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/9/2011 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - shrub cover
  • Site Obs. Cover Kind 2 - native shrubs
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - overcast
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ACBE

    CORA

    MATR3

    OPLE

    Acacia berlandieri

    Coleogyne ramosissima

    Mahonia trifoliolata

    Opuntia leptocaulis

    guajillo

    blackbrush

    algerita

    Christmas cactus

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

    bedrock, densic

    noncoherent

    206 -

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

    mollic epipedon

    secondary carbonates

    calcic horizon

    densic materials

    densic contact

    0—33

    61—170

    119—170

    201—206

    206—

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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

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    36

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    A—0 to 9 centimeters (0.0 to 3.5 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; loamy fine sand; 15 percent clay; weak fine subangular blocky structure; 2.0 very fine roots throughout and 1.0 very coarse roots throughout and 1.0 coarse roots throughout; 3 percent fine irregular iron-manganese masses in matrix and 10 percent medium irregular iron depletions with diffuse boundaries in matrix; fragments; noneffervescent; clear smooth boundary.
    AB—9 to 33 centimeters (3.5 to 13.0 inches); brown (7.5YR 4/3), dark brown (7.5YR 3/3), moist; sandy clay loam; 23 percent clay; moderate medium subangular blocky structure; 2.0 very fine roots throughout and 2.0 medium roots throughout and 1.0 fine roots throughout and 1.0 coarse roots throughout; fragments; noneffervescent; clear smooth boundary.
    Bt—33 to 61 centimeters (13.0 to 24.0 inches); brown (7.5YR 4/4), brown (7.5YR 4/3), moist; sandy clay; 42 percent clay; moderate medium angular blocky structure; 2.0 very fine roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout; 20 percent distinct clay films on all faces of peds; fragments; strong effervescence; clear smooth boundary.
    2Btk1—61 to 119 centimeters (24.0 to 46.9 inches); light brown (7.5YR 6/4), strong brown (7.5YR 5/6), moist; clay loam; 30 percent clay; moderate medium angular blocky structure; 1.0 very fine roots throughout and 1.0 fine roots throughout; 20 percent distinct clay films on all faces of peds; 35 percent coarse distinct irregular noncoherent cemented carbonate masses with clear boundaries in matrix; fragments; strong effervescence; clear smooth boundary.
    2Btk2—119 to 138 centimeters (46.9 to 54.3 inches); light brown (7.5YR 6/4), light brown (7.5YR 6/4), moist; clay; 29 percent clay; strong medium subangular blocky structure; 1.0 very fine roots throughout and 1.0 fine roots throughout; 30 percent distinct clay films on all faces of peds; 40 percent coarse irregular carbonate masses in matrix; fragments; strong effervescence; clear smooth boundary.
    2BCtk—138 to 170 centimeters (54.3 to 66.9 inches); 90 percent brown (7.5YR 5/4) and 10 percent olive (5Y 5/3), 90 percent brown (7.5YR 5/4) and 10 percent olive (5Y 5/3), moist; clay; 30 percent clay; strong medium angular blocky parts to weak medium prismatic structure; 1.0 fine roots throughout; 10 percent distinct clay films on all faces of peds; 30 percent coarse irregular carbonate masses in matrix; fragments; strong effervescence; clear smooth boundary.
    2Cdk—170 to 201 centimeters (66.9 to 79.1 inches); 50 percent olive (5Y 5/3) and 50 percent light yellowish brown (10YR 6/4), 50 percent olive (5Y 5/3) and 50 percent light yellowish brown (10YR 6/4), moist; clay; 30 percent clay; structureless massive; 1.0 very fine roots in cracks and 2.0 fine roots in cracks; fragments; slight effervescence; clear smooth boundary.
    2Cd—201 to 206 centimeters (79.1 to 81.1 inches); 2.5Y (2.5Y/),, 2.5Y (2.5Y/),, moist; clay; structureless massive; fragments.