IDENTIFIERS

  • Current Taxon Name (Soil Name): Uvalde
  • OSD
  • Series Extent
  • User Site ID: S1963TX507001
  • User Pedon ID: S1963TX507001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A4520
  • NCSS Pedon Lab Data NASIS Record ID - 40672
  • 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: 28.9597222
  • Std. Longitude: -99.8430556
  • Datum: WGS84
  • Location Description: Zavala County, Texas; From the intersection of US Highway 83 and Road 1436 in La Pryor, about 0.5 miles east on Road 1436, then about 0.6 miles north on gravel road, then about 270 feet west in cropland field. (Original directions given on pedon description: 0.5 miles E of La Pryor intersection of Loop 305 and Highway 76; 0.6 miles on gravel road - 90 yards W in 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 #: 1
  • Correlated Information:
  • Soil Name - Uvalde
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/27/2015
  • 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
  • Anthropogenic Feature: leveled land
  • 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—244

    114—178

    208—244

    —38—

    —206—

    —64—

    —36—
    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

    —

    —

    230.1

    —

    559

    —

    280

    21.7

    —

    —

    —

    —

    —

    —

    —

    —

    Crystal City, Texas

    —
    A—0 to 15 centimeters (0.0 to 5.9 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; clay loam; weak granular structure; hard, friable; 21 percent worm casts and 1 percent carbonate concretions; fragments; moderately alkaline, pH 8.2, hellige-truog; abrupt boundary. Lab sample # 40A34549
    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 and moderate very fine granular, and weak and moderate very fine subangular blocky structure; hard, friable; 21 percent worm casts and 1 percent carbonate concretions; fragments; clear wavy boundary. Lab sample # 40A34550
    Bk1—38 to 58 centimeters (15.0 to 22.8 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay loam; weak prismatic, and weak and moderate fine subangular blocky structure; hard, friable; 3 percent worm casts and 1 percent fine carbonate concretions; fragments; clear wavy boundary. Lab sample # 40A34551
    Bk2—58 to 79 centimeters (22.8 to 31.1 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; clay loam; weak prismatic, and weak and moderate fine subangular blocky structure; hard, friable; 21.0 very fine pores; 3 percent worm casts and 3 percent fine carbonate concretions; fragments; clear wavy boundary. Lab sample # 40A34552
    Bk3—79 to 114 centimeters (31.1 to 44.9 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay loam; weak prismatic, and weak and moderate fine subangular blocky structure; hard, friable; 21.0 very fine pores; 3 percent worm casts and 3 percent fine carbonate concretions; fragments; clear boundary. Lab sample # 40A34553
    Bk4—114 to 150 centimeters (44.9 to 59.1 inches); light yellowish brown (10YR 6/4), yellowish brown (10YR 5/4), moist; silty clay loam; weak prismatic parts to moderate subangular blocky structure; hard, friable; 15 percent carbonate concretions and 3 percent worm casts; fragments; diffuse boundary. Lab sample # 40A34554
    Bk5—150 to 178 centimeters (59.1 to 70.1 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; silty clay loam; weak prismatic parts to weak subangular blocky structure; hard, friable; 15 percent carbonate concretions; fragments; diffuse boundary. Lab sample # 40A34555
    Bk6—178 to 208 centimeters (70.1 to 81.9 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; silty clay; weak prismatic parts to weak subangular blocky structure; hard, friable; 3 percent carbonate concretions; fragments; gradual wavy boundary. Lab sample # 40A34556
    Bkm—208 to 244 centimeters (81.9 to 96.1 inches); very pale brown (10YR 8/4) clay loam; fragments. Lab sample # 40A34557