IDENTIFIERS

  • Current Taxon Name (Soil Name): Alazan
  • OSD
  • Series Extent
  • User Site ID: S93TX455003
  • User Pedon ID: S93TX455003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - TAMU
  • Lab Pedon # - S93TX455003
  • NCSS Pedon Lab Data NASIS Record ID - 45727
  • Print Date: 1/25/2025

    • LOCATION

  • Map Unit: AaB—Alazan very fine sandy loam, 0 to 2 percent slopes
  • Country: US—United States
  • State: Texas
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: TX455—Trinity County, Texas

    • PEDON

  • Describers Name: Levi Steptoe, Lynn Gray, Joe Castille.
  • Current Taxonomic Class: Fine-loamy, siliceous, semiactive, thermic Aquic Glossudalfs
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Alazan
  • PSC - 33 to 83 cm.
  • Classificaton Date - 9/28/1993
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Alazan
  • Taxonomic Class - Fine-loamy, siliceous, semiactive, thermic Aquic Glossudalfs
  • Taxon Kind - series
  • PSC - 33 to 83 cm.
  • Classificaton Date - 9/28/1993
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3


    • SITE

  • Landscape: coastal plain
  • Landform: flood plain
  • Geomorphic Component Hills: interfluve
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/29/1993 (actual site observation date)
  • Air Photo ID: FS # 8A
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID - 3-1-7
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    0—11

    —-
    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

    1

    —

    —

    —

    —

    110

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 11 centimeters (0.0 to 4.3 inches); brown (10YR 4/3); 2 percent yellowish brown (10YR 5/8) fine distinct and 10 percent dark yellowish brown (10YR 4/4) fine and medium distinct mottles; weak fine subangular blocky structure; hard, very friable; 30.0 medium and coarse roots throughout; 15.0 fine and medium pores; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # TAMU4814; dry when described;
    Bw1—11 to 39 centimeters (4.3 to 15.4 inches); grayish brown (10YR 5/2); 2 percent yellowish brown (10YR 5/6) fine distinct and 10 percent dark yellowish brown (10YR 4/6) fine distinct mottles; weak coarse prismatic parts to weak fine and medium subangular blocky structure; hard, very friable; 15.0 fine and medium roots throughout; 15.0 medium and coarse pores; 3 percent fine and medium spherical iron-manganese concretions; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; 35 percent krotovinas (volume percent); strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # TAMU4815; dry when described;
    Bw2—39 to 69 centimeters (15.4 to 27.2 inches); grayish brown (10YR 5/2), light brownish gray (10YR 6/2) interior, dry; 2 percent dark yellowish brown (10YR 4/6) fine distinct mottles; weak coarse prismatic parts to weak fine and medium subangular blocky structure; hard, very friable; 15.0 fine and medium roots throughout; 30.0 fine and medium pores; distinct dark gray (10YR 4/1), moist, organic stains; 3 percent fine and medium spherical iron-manganese concretions throughout; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; 80 percent krotovinas (volume percent); very strongly acid, pH 5.0, hellige-truog; gradual smooth boundary. Lab sample # TAMU4816; dry when described;. continuous - phpvsfiid 121466; continuous - phpvsfiid 121466
    Bw3—69 to 98 centimeters (27.2 to 38.6 inches); grayish brown (10YR 5/2); 2 percent yellowish brown (10YR 5/6) fine distinct and 2 percent dark yellowish brown (10YR 4/6) fine distinct mottles; weak coarse prismatic parts to weak coarse subangular blocky structure; hard, very friable; 5.0 fine and medium roots throughout; 15.0 medium pores; distinct dark gray (10YR 4/1), moist, organic stains; 3 percent fine and medium spherical iron-manganese concretions; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; 60 percent krotovinas (volume percent); very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # TAMU4817; dry when described;. continuous - phpvsfiid 121467; continuous - phpvsfiid 121467
    Ab—98 to 134 centimeters (38.6 to 52.8 inches); dark grayish brown (2.5Y 4/2); weak coarse prismatic parts to moderate medium subangular blocky structure; hard, very friable; 15.0 fine and medium roots throughout; 15.0 fine and medium pores; distinct dark gray (10YR 4/1), moist, organic stains; 5 percent fine and medium spherical iron-manganese concretions; 3 percent fine irregular salt masses; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; 30 percent krotovinas (volume percent); moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # TAMU4818; moist when described;. continuous - phpvsfiid 121468; continuous - phpvsfiid 121468
    B'w1—134 to 187 centimeters (52.8 to 73.6 inches); grayish brown (10YR 5/2); 2 percent dark yellowish brown (10YR 4/6) fine distinct mottles; weak coarse prismatic parts to weak medium subangular blocky structure; hard, very friable; 5.0 fine roots throughout; 5.0 fine and medium pores; distinct dark gray (10YR 4/1), moist, organic stains; 2 percent fine and medium spherical iron-manganese concretions throughout and 2 percent fine and medium irregular iron-manganese masses throughout; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; 20 percent krotovinas (volume percent); moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary. Lab sample # TAMU4819; moist when described;. continuous - phpvsfiid 121469; continuous - phpvsfiid 121469
    B'w2—187 to 224 centimeters (73.6 to 88.2 inches); grayish brown (2.5Y 5/2); 2 percent dark yellowish brown (10YR 4/6) fine distinct mottles; weak coarse prismatic parts to weak medium subangular blocky structure; hard, very friable; 5.0 fine roots throughout; 5.0 fine and medium pores; 5 percent fine and medium irregular iron-manganese masses and 5 percent fine and medium spherical iron-manganese concretions; 2 percent by volume rounded 2-39-75 millimeter quartzite fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # TAMU4820; moist when described;