IDENTIFIERS

  • Current Taxon Name (Soil Name): Houston Black
  • OSD
  • Series Extent
  • User Site ID: S78TX027004
  • User Pedon ID: S78TX027004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - TAMU
  • Lab Pedon # - S78TX027004
  • NCSS Pedon Lab Data NASIS Record ID - 45640
  • Print Date: 11/21/2024

    • 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: 31.0444450
  • Std. Longitude: -97.3361130
  • Datum: WGS84
  • Location Description: APPROXIMATELY 2 miles south of Temple in native pasture on south part of the Backland Research Center.
  • Map Unit: HoB—Houston Black clay, 1 to 3 percent slopes
  • Country: US—United States
  • State: Texas
  • County: TX027—Bell
  • MLRA: 86A—Texas Blackland Prairie, Northern Part
  • Regional Office: SC—South Central
  • Non-MLRA Soil Survey Area: TX027—Bell County, Texas

    • PEDON

  • Describers Name: Wilding, Rivers, Ramsey
  • Current Taxonomic Class: Fine, smectitic, thermic Udic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Correlated Information:
  • Soil Name - Houston Black
  • PSC - 25 to 100 cm.
  • Classificaton Date - 6/4/2012
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Houston Black
  • Classificaton Date - 10/10/1978
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: marl
  • Microfeature: gilgai
  • Runoff: very high
  • Drainage Class: moderately well
  • Bedrock: shale, calcareous
  • Geology: Lower Taylor Marl group .
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/10/1978 (actual site observation date)
  • Microrelief Kind: microhigh
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    slickensides

    0—46

    46—251

    46—251

    —-

    —-

    —-
    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

    —

    —

    —

    183

    —

    93

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 46 centimeters (0.0 to 18.1 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; clay; moderate fine subangular blocky, and moderate fine angular blocky structure; extremely hard, very firm; 3.0 fine roots; 1 percent fine dark concretions; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # TAMU332, TAMU333
    Bss1—46 to 119 centimeters (18.1 to 46.9 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; clay; weak fine and medium angular blocky structure; extremely hard, very firm; 0.9 fine roots; 1 percent distinct dark gray (10YR 4/1), moist, organic stains on vertical faces of peds and 2 percent slickensides (pedogenic); 1 percent fine faint brownish yellow (10YR 6/6), moist, masses of oxidized iron with clear boundaries in matrix and 1 percent black (10YR 2/1), moist, iron-manganese concretions; 1 percent shell fragments and 1 percent fine carbonate concretions; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # TAMU334, TAMU335, TAMU336
    Bss2—119 to 188 centimeters (46.9 to 74.0 inches); light brownish gray (10YR 6/2), grayish brown (10YR 5/2), moist; clay; weak fine and medium angular blocky structure; extremely hard, very firm; 3.0 fine roots; 15 percent slickensides (pedogenic); 1 percent fine faint brownish yellow (10YR 6/6), moist, masses of oxidized iron with clear boundaries in matrix and 1 percent fine spherical black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix; and 1 percent fine carbonate concretions; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # TAMU340, TAMU341
    Bss3—188 to 251 centimeters (74.0 to 98.8 inches); light brownish gray (10YR 6/2), grayish brown (10YR 5/2), moist; clay; weak medium angular blocky structure; extremely hard, very firm; 3.0 fine roots; 15 percent slickensides (pedogenic); 1 percent fine faint brownish yellow (10YR 6/6), moist, masses of oxidized iron with clear boundaries in matrix and 1 percent fine spherical black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix; 1 percent fine carbonate concretions; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # TAMU342
    C1—251 to 315 centimeters (98.8 to 124.0 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; clay; 5 percent brownish yellow (10YR 6/6) fine faint mottles; massive; extremely hard, very firm; 1 percent fine black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix; 1 percent fine carbonate concretions; fragments; strong effervescence; moderately alkaline, pH 8.0, hellige-truog; diffuse wavy boundary. Lab sample # TAMU343, TAMU347, TAMU348
    C2—315 to 432 centimeters (124.0 to 170.1 inches); very pale brown (10YR 8/3), very pale brown (10YR 7/3), moist; 10 percent yellow (10YR 7/8) medium faint mottles; massive; extremely hard, very firm; 1 percent fine spherical black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix; 1 percent carbonate masses and 1 percent fine carbonate concretions; fragments; strong effervescence; moderately alkaline, pH 8.0, hellige-truog. Lab sample # TAMU349, TAMU350