IDENTIFIERS

  • Current Taxon Name (Soil Name): Katy
  • OSD
  • Series Extent
  • User Site ID: S1955TX157093
  • User Pedon ID: 55TX157093
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A4455
  • Print Date: 9/24/2024

    • 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: 29.6951942
  • Std. Longitude: -95.8453140
  • Datum: WGS84
  • Location Description: 9 1/2 mi N of Rosenber; 3.3mi E of Fulshear; 100 yards NE of R.R. crossing at Flewellen siding.
  • State: Texas
  • County: TX157—Fort Bend

    • PEDON

  • Describers Name: I.C. Mowery
  • Current Taxonomic Class: Fine-loamy, siliceous, active, thermic Typic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 93
  • Correlated Information:
  • Soil Name - Katy
  • PSC - 64 to 114 cm.
  • Classificaton Date - 7/3/2011
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/1/1955 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—64

    64—279

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    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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    A—0 to 30 centimeters (0.0 to 11.8 inches); dark grayish brown (10YR 4/2) interior, grayish brown (10YR 5/2) interior, dry; fine sandy loam; massive; soft, very friable; many very fine roots; common very fine and fine tubular and common very fine and fine interstitial pores; fragments; strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # 40A34071. structureless; porous; grass roots abundant
    E—30 to 64 centimeters (11.8 to 25.2 inches); pale brown (10YR 6/3) interior, very pale brown (10YR 7/3) interior, dry; fine sandy loam; massive; soft, very friable; many very fine tubular pores; 1 percent fine prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron with sharp boundaries lining pores; fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 40A34072. grass roots less numerous; boundary (2-1/2" transition); structureless; porous
    Bt1—71 to 117 centimeters (28.0 to 46.1 inches); yellowish brown (10YR 5/6), brownish yellow (10YR 6/6), dry; loam; weak medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; common very fine roots; common very fine tubular pores; 5 percent faint yellowish brown (10YR 5/6), moist, clay films on all faces of peds; 2 percent fine prominent yellowish red (5YR 5/6), moist, masses of oxidized iron with sharp boundaries on faces of peds and 3 percent fine distinct reddish yellow (7.5YR 6/8), moist, masses of oxidized iron with sharp boundaries on faces of peds; fragments; slightly acid, pH 6.3, hellige-truog; gradual wavy boundary. Lab sample # 40A34074. grass roots are moderate in number and are more numerous in cleavages; sand grains are noticeable.
    Bt2—117 to 163 centimeters (46.1 to 64.2 inches); 60 percent yellowish brown (10YR 5/6) and 25 percent red (2.5YR 4/8) interior and 15 percent gray (10YR 5/1) interior loam; moderate medium subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; common very fine roots; common very fine tubular pores; 25 percent prominent very dark gray (10YR 3/1), moist, clay films on all faces of peds; 1 percent fine distinct spherical black (10YR 2/1), moist, iron-manganese concretions; fragments; slightly alkaline, pH 7.5, hellige-truog; gradual wavy boundary. Lab sample # 40A34075. few roots
    Bt3—163 to 213 centimeters (64.2 to 83.9 inches); 50 percent yellowish brown (10YR 5/6) and 30 percent red (2.5YR 4/8) and 30 percent red (2.5YR 5/8) and 20 percent gray (10YR 5/1) and 20 percent gray (10YR 6/1) loam; weak coarse prismatic parts to moderate coarse subangular blocky structure; very hard, firm, very sticky; common very fine roots between peds; few very fine tubular pores; 10 percent distinct dark gray (10YR 4/1), moist, clay films on all faces of peds; fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # 40A34076. continues through next layer
    Bt4—213 to 279 centimeters (83.9 to 109.8 inches); 50 percent brownish yellow (10YR 6/6) and 25 percent gray (10YR 6/1) and 25 percent red (2.5YR 4/8) and 25 percent red (2.5YR 5/8) clay loam; moderate coarse prismatic parts to moderate coarse subangular blocky structure; very hard, very firm, very sticky; few very fine roots; few very fine tubular pores; 5 percent distinct sand coats on vertical faces of peds and 20 percent distinct gray (10YR 5/1), moist, clay films on all faces of peds; fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # 40A34077. continues through next layer