IDENTIFIERS

  • Current Taxon Name (Soil Name): Robco
  • OSD
  • Series Extent
  • User Site ID: S2009TX1870016
  • User Pedon ID: S2009TX187016
  • Vegetation Plot ID: S2009TX1870016
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 10N0802
  • NCSS Pedon Lab Data NASIS Record ID - 43249
  • 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: 29.3957611
  • Std. Longitude: -97.8464611
  • Datum: WGS84
  • Location Description: From the intersection of Farm to Market Road 1117 in Gonzales County, go west on Lakey Road approximately 1.32 miles to ranch gate on north side of Lakey Road. Go north on ranch road approximately 0.1 mile. Go east in pasture approximately 200 feet.
  • State: Texas
  • County: TX187—Guadalupe
  • MLRA: 87A—Texas Claypan Area, Southern Part
  • Non-MLRA Soil Survey Area: TX187—Guadalupe County, Texas
  • 7.5 Minute USGS Quad: 29097-D7—Dewville, Texas

    • PEDON

  • Describers Name: Richard Reid, Jacob Bushong, Travis Waiser
  • Current Taxonomic Class: Loamy, siliceous, active, thermic Aquic Arenic Paleustalfs
  • 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 - Robco
  • PSC - 60 to 110 cm.
  • Classificaton Date - 4/22/2016
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - ROBCO
  • Taxonomic Class - Loamy, siliceous, active, thermic Aquic Arenic Paleustalfs
  • PSC - 60 to 110 cm.
  • Classificaton Date - 11/2/2009
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: loamy residuum weathered from sandstone and shale
  • Landscape: —Error in Exists On—
  • Landform: broad ridge
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: toeslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Er formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/2/2009 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
  • Current Weather - sunny
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CENCH

    CRCA6

    CYDA

    EUCO7

    Cenchrus

    Croton capitatus

    Cynodon dactylon

    Eupatorium compositifolium

    sandbur

    hogwort

    Bermudagrass

    yankeeweed

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

    ochric epipedon

    redox concentrations

    abrupt textural change

    argillic horizon

    aquic conditions

    reduced matrix

    0—60

    0—203

    60—

    60—203

    60—203

    60—203

    —60—

    —203—

    —-

    —143—

    —143—

    —143—
    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

    1.5

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    —

    143

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    Ap—0 to 19 centimeters (0.0 to 7.5 inches); brown (10YR 5/3), brown (10YR 4/3), moist; sand; weak medium subangular blocky structure; soft, very friable; 5.0 very fine roots throughout and 1.0 medium roots throughout and 2.0 fine roots throughout; 2 percent medium strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03896; wet when described; observed in trench
    E1—19 to 34 centimeters (7.5 to 13.4 inches); light yellowish brown (10YR 6/4), yellowish brown (10YR 5/4), moist; sand; weak medium subangular blocky structure; soft, very friable; 5.0 very fine roots throughout and 1.0 medium roots throughout and 2.0 fine roots throughout; 4 percent medium strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03897; wet when described; observed in trench
    E2—34 to 60 centimeters (13.4 to 23.6 inches); very pale brown (10YR 7/4), light yellowish brown (10YR 6/4), moist; sand; weak medium subangular blocky structure; soft, very friable; 3.0 very fine roots throughout and 0.5 medium roots throughout and 2.0 fine roots throughout; 6 percent medium strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03898; wet when described; observed in trench
    Btg1—60 to 88 centimeters (23.6 to 34.6 inches); light brownish gray (10YR 6/2), grayish brown (10YR 5/2), moist; sandy loam; moderate medium subangular blocky structure; moderately hard, firm; 2.0 very fine roots throughout and 0.5 fine roots throughout; 0.2 very fine tubular and 0.5 fine tubular pores; 35 percent clay films; 10 percent coarse yellowish brown (10YR 5/6), moist, masses of oxidized iron; 1 percent by volume sandstone, unspecified fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03899; wet when described; observed in trench
    Btg2—88 to 128 centimeters (34.6 to 50.4 inches); gray (10YR 6/1), gray (10YR 5/1), moist; sandy clay loam; strong coarse subangular blocky structure; hard, very firm; 2.0 very fine roots throughout and 0.5 fine roots throughout; 0.2 very fine tubular and 0.5 fine tubular pores; 60 percent clay films; 3 percent medium dark red (2.5YR 3/6), moist, masses of oxidized iron and 15 percent coarse yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03900; moist when described; observed in trench
    Btg3—128 to 160 centimeters (50.4 to 63.0 inches); white (2.5Y 8/1), light gray (2.5Y 7/1), moist; sandy clay loam; strong coarse subangular blocky structure; hard, very firm; 2.0 very fine roots throughout and 0.5 fine roots throughout; 0.2 very fine tubular and 0.5 fine tubular pores; 40 percent clay films; 3 percent medium dark yellowish brown (10YR 4/6), moist, masses of oxidized iron and 10 percent coarse yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 10N03901; moist when described; observed in trench
    BCtg—160 to 203 centimeters (63.0 to 79.9 inches); white (5Y 8/1), light gray (5Y 7/1), moist; sandy clay loam; moderate coarse subangular blocky structure; hard, very firm; 1.0 very fine roots throughout and 0.2 fine roots throughout; 0.2 fine tubular and 0.2 fine tubular pores; 20 percent clay films; 2 percent medium dark yellowish brown (10YR 4/6), moist, masses of oxidized iron and 10 percent coarse yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n. Lab sample # 10N03902; moist when described; observed in auger, bucket