IDENTIFIERS

  • Current Taxon Name (Soil Name): Uvalde
  • OSD
  • Series Extent
  • User Site ID: S1963TX507002
  • User Pedon ID: S1963TX507002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0221
  • NCSS Pedon Lab Data NASIS Record ID - 32750
  • Print Date: 11/23/2024

    • 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: 28.9330556
  • Std. Longitude: -99.8704167
  • Datum: WGS84
  • Location Description: Zavala County, Texas; From the intersection of US Highways 83 and 57 in La Pryor, TX, about 1.2 miles west of La Pryor on US Highways 57, then 420 feet (140 yards) south on field road, 100 feet (33 yards) west in idle field.
  • State: Texas
  • County: TX507—Zavala
  • MLRA: 83A—Northern Rio Grande Plain
  • Non-MLRA Soil Survey Area: TX605—Dimmit and Zavala Counties, Texas
  • 7.5 Minute USGS Quad: 29099-A8—Sand Mountain, Texas

    • PEDON

  • Describers Name: M. Stout and H. C. Dean
  • Current Taxonomic Class: Fine-silty, mixed, active, hyperthermic Aridic Calciustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Uvalde
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/31/2015
  • Classifier - Gary Harris
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Uvalde
  • Classificaton Date - 4/22/1963
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: calcareous, Pleistocene loamy alluvium
  • Landscape: inland coastal plain
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Slope Shape Across: linear
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/22/1963 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    secondary carbonates

    calcic horizon

    petrocalcic horizon

    0—38

    38—84

    84—274

    274—

    —38—

    —46—

    —190—

    —-
    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

    0.5

    —

    —

    224

    —

    610

    —

    256

    21.1

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); light brownish gray (10YR 6/2), dark grayish brown (10YR 4/2), moist; loam; weak fine granular, and weak fine subangular blocky structure; hard, friable; 21 percent fine worm casts; fragments; moderately alkaline, pH 8.2, hellige-truog; abrupt boundary. Lab sample # 40A01647
    A—15 to 38 centimeters (5.9 to 15.0 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; clay loam; weak fine subangular blocky, and fine granular structure; hard, friable; 21 percent worm casts and 1 percent fine and medium carbonate concretions; fragments; moderately alkaline, pH 8.2, hellige-truog; clear boundary. Lab sample # 40A01648
    Bk1—38 to 61 centimeters (15.0 to 24.0 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay loam; weak prismatic parts to weak subangular blocky structure; hard, friable; 21.0 very fine pores; 1 percent fine and medium carbonate concretions; fragments; moderately alkaline, pH 8.2, hellige-truog; gradual boundary. Lab sample # 40A01649
    Bk2—61 to 84 centimeters (24.0 to 33.1 inches); very pale brown (10YR 7/3) and light gray (10YR 7/2) crushed, brown (10YR 5/3), moist; clay loam; weak prismatic parts to weak subangular blocky structure; hard, friable; 21.0 very fine pores; 1 percent fine and medium carbonate concretions; fragments; moderately alkaline, pH 8.2, hellige-truog; clear wavy boundary. Lab sample # 40A01650
    Bk3—84 to 117 centimeters (33.1 to 46.1 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; clay loam; weak subangular blocky, and massive; hard, friable; 3 percent carbonate concretions and 3 percent worm casts; fragments; moderately alkaline, pH 8.2, hellige-truog; diffuse wavy boundary. Lab sample # 40A01651
    Bk4—117 to 145 centimeters (46.1 to 57.1 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; silty clay loam; weak subangular blocky, and massive; hard, friable; 3 percent carbonate concretions and 3 percent worm casts; fragments; moderately alkaline, pH 8.2, hellige-truog; diffuse wavy boundary. Lab sample # 40A01652
    Bkk1—145 to 175 centimeters (57.1 to 68.9 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; silty clay loam; hard, friable; 60 percent carbonate concretions and 3 percent worm casts; fragments; diffuse wavy boundary. Lab sample # 40A01653
    Bkk2—175 to 218 centimeters (68.9 to 85.8 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; silty clay loam; hard, friable, weakly cemented; 60 percent carbonate concretions and 3 percent worm casts; fragments; diffuse wavy boundary.
    Bkk3—218 to 274 centimeters (85.8 to 107.9 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; silty clay loam; hard, friable, weakly cemented; 60 percent carbonate concretions and 3 percent worm casts; fragments. Continuation of above horizon except for color.
    Bkkm—274 centimeters (107.9 inches); weakly cemented; 21 percent carbonate concretions; fragments.