IDENTIFIERS

  • Current Taxon Name (Soil Name): Portales
  • OSD
  • Series Extent
  • User Site ID: S2012TX079001
  • User Pedon ID: S2012TX079001
  • Vegetation Plot ID: S12TX079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 12N7772
  • NCSS Pedon Lab Data NASIS Record ID - 55258
  • Print Date: 4/28/2025

    • 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: 33.7805710
  • Std. Longitude: -102.6330414
  • Datum: WGS84
  • State: Texas
  • County: TX079—Cochran
  • MLRA: 77C—Southern High Plains, Southern Part
  • Non-MLRA Soil Survey Area: TX079—Cochran County, Texas
  • 7.5 Minute USGS Quad: 33102-G6—County Line, Texas

    • PEDON

  • Describers Name: MLRA-77 Soil Survey Staff
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, thermic Aridic Calciustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Correlated Information:
  • Soil Name - Portales
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/26/2012
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Portales
  • Classificaton Date - 11/29/2011
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: calcareous loamy eolian deposits
  • Landscape: plateau
  • Landform: plain
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Geology: Blackwater Draw Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/29/2011 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • 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

    BOCU

    BOGR2

    ERLE

    YUCCA

    Bouteloua curtipendula

    Bouteloua gracilis

    Eragrostis lehmanniana

    Yucca

    sideoats grama

    blue grama

    Lehmann lovegrass

    yucca

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    mollic epipedon

    cambic horizon

    calcic horizon

    lithologic discontinuity

    0—25

    25—52

    52—203

    93—203

    —-

    —-

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 13 centimeters (0.0 to 5.1 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; loam; 22 percent clay; weak medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 3.0 very fine roots throughout; 1 percent fine irregular strongly coherent cemented carbonate nodules in matrix; fragments; strong effervescence; clear smooth boundary.
    Ap2—13 to 25 centimeters (5.1 to 9.8 inches); brown (7.5YR 4/3), dark brown (7.5YR 3/3), moist; loam; 22 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 2.0 very fine roots throughout; 1 percent fine irregular strongly coherent cemented carbonate nodules in matrix; fragments; strong effervescence; clear smooth boundary.
    Bw—25 to 52 centimeters (9.8 to 20.5 inches); brown (7.5YR 5/3), brown (7.5YR 4/3), moist; clay loam; 29 percent clay; moderate coarse subangular blocky structure; slightly hard, friable, very sticky, very plastic; 1.0 very fine roots throughout and 1.0 medium roots throughout; 2 percent medium irregular strongly coherent cemented carbonate nodules in matrix; fragments; violent effervescence; gradual wavy boundary.
    Bk1—52 to 93 centimeters (20.5 to 36.6 inches); pinkish gray (7.5YR 6/2), brown (7.5YR 5/2), moist; loam; 20 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 1.0 fine roots throughout and 1.0 coarse roots throughout; 10 percent carbonate, finely disseminated in matrix and 35 percent coarse irregular noncoherent cemented carbonate masses in matrix and 2 percent fine spherical strongly coherent cemented carbonate nodules in matrix; fragments; violent effervescence; gradual smooth boundary.
    2Bk2—93 to 122 centimeters (36.6 to 48.0 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; sandy clay loam; 25 percent clay; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 1.0 very fine roots throughout and 1.0 fine roots throughout; 10 percent carbonate, finely disseminated throughout and 15 percent fine spherical strongly coherent cemented carbonate nodules in matrix; 1 percent by volume nonflat subangular indurated 2-35-50 millimeter petrocalcic fragments fragments; violent effervescence; clear wavy boundary.
    2Bk3—122 to 147 centimeters (48.0 to 57.9 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; fine sandy loam; 19 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout; 15 percent carbonate, finely disseminated throughout and 10 percent coarse irregular very strongly coherent cemented carbonate nodules in matrix and 3 percent fine irregular strongly coherent cemented carbonate nodules in matrix; fragments; 15 to 35 percent krotovinas (volume percent); violent effervescence; clear wavy boundary.
    3Bkk—147 to 165 centimeters (57.9 to 65.0 inches); light brown (7.5YR 6/3), brown (7.5YR 5/3), moist; cobbly fine sandy loam; 15 percent clay; structureless massive; soft, very friable, slightly sticky, nonplastic; 25 percent carbonate, finely disseminated throughout and 10 percent medium irregular strongly coherent cemented carbonate nodules in matrix and 10 percent medium irregular noncoherent cemented carbonate masses in matrix; 8 percent by volume nonflat subangular indurated 76-?-120 millimeter petrocalcic fragments fragments and 15 percent by volume nonflat subangular indurated 2-?-76 millimeter petrocalcic fragments fragments; violent effervescence; clear wavy boundary.
    3Bk—165 to 203 centimeters (65.0 to 79.9 inches); pink (5YR 8/3), pink (5YR 7/3), moist; sandy clay loam; 25 percent clay; moderate medium subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; 15 percent carbonate, finely disseminated throughout and 25 percent medium irregular noncoherent cemented carbonate masses in matrix and 8 percent medium irregular strongly coherent cemented carbonate nodules in matrix; fragments; violent effervescence.