IDENTIFIERS

  • Current Taxon Name (Soil Name): HOUSTON BLACK
  • OSD
  • Series Extent
  • User Site ID: S1984TX145001
  • User Pedon ID: 84TX145001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0188
  • NCSS Pedon Lab Data NASIS Record ID - 55904
  • 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: 31.4761105
  • Std. Longitude: -96.8861084
  • Datum: WGS84
  • State: Texas
  • County: TX145—Falls
  • MLRA: 86A—Texas Blackland Prairie, Northern Part
  • Non-MLRA Soil Survey Area: TX145—Falls County, Texas

    • PEDON

  • Current Taxonomic Class: Fine, montmorillonitic Udic Pellusterts
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - HOUSTON BLACK
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/12/2003
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Houston Black
  • Taxonomic Class - Fine, montmorillonitic, thermic Udic Pellustert
  • Taxon Kind - series
  • Classificaton Date - 6/1/1984
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: calcareous, loamy sediments of pleistocene age
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1984 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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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    27

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    A1—0 to 14 centimeters (0.0 to 5.5 inches); silty clay; strong fine granular, and strong fine subangular blocky structure; firm, very sticky, moderately plastic; 21.0 fine and medium roots; 0.5 fine pores; 2 percent shell fragments and 30 percent insect casts; 1 percent by volume nonflat rounded 2-?-75 millimeter silica concretions fragments; strong effervescence; clear smooth boundary. Lab sample # 85P00948
    A2—14 to 38 centimeters (5.5 to 15.0 inches); black (10YR 2/1), black (10YR 2/1), moist; silty clay; moderate medium subangular blocky structure; firm, very sticky, moderately plastic; 3.0 fine roots; 0.5 very fine pores; 2 percent fine shell fragments and 2 percent fine insect casts; 1 percent by volume nonflat rounded 2-?-75 millimeter silica concretions fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00949
    A3—38 to 60 centimeters (15.0 to 23.6 inches); black (10YR 2/1), black (10YR 2/1), moist; silty clay; very firm, very sticky, moderately plastic; 3.0 very fine pores; 30 percent pressure faces on all faces of peds; 2 percent fine and medium shell fragments; 3 percent by volume 2-?-75 millimeter silica concretions fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00950
    Bw1—60 to 86 centimeters (23.6 to 33.9 inches); black (10YR 2/1), black (10YR 2/1), moist; silty clay; very firm, very sticky, moderately plastic; 0.5 very fine pores; 30 percent pressure faces on all faces of peds; 2 percent fine shell fragments; fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00951
    Bw2—86 to 108 centimeters (33.9 to 42.5 inches); very dark brown (10YR 2/2), yellowish brown (10YR 5/4), moist; silty clay; very firm, very sticky, moderately plastic; 3.0 very fine roots; 3.0 very fine pores; fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00952
    Bw3—108 to 130 centimeters (42.5 to 51.2 inches); silty clay; very firm, very sticky, moderately plastic; 0.5 very fine pores; 2 percent fine shell fragments; 1 percent by volume nonflat rounded 2-?-75 millimeter silica concretions fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00953
    Bw4—130 to 172 centimeters (51.2 to 67.7 inches); silty clay; very firm, very sticky, moderately plastic; 2 percent shell fragments; 1 percent by volume nonflat rounded 2-?-75 millimeter silica concretions fragments; abrupt wavy boundary. Lab sample # 85P00954
    Bk—172 to 193 centimeters (67.7 to 76.0 inches); silty clay; weak coarse subangular blocky structure; very firm; 0.5 fine roots; 0.5 fine pores; fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00955
    BC—193 to 259 centimeters (76.0 to 102.0 inches); fragments. Lab sample # 85P00956
    Bck—193 to 280 centimeters (76.0 to 110.2 inches); silty clay; weak coarse subangular blocky structure; very firm; 0.5 fine roots; 0.5 fine pores; fragments; strong effervescence; gradual wavy boundary. Lab sample # 85P00957
    C—280 to 320 centimeters (110.2 to 126.0 inches); silty clay; very firm; fragments; strong effervescence. Lab sample # 85P00958