IDENTIFIERS

  • Current Taxon Name (Soil Name): Denhawken
  • OSD
  • Series Extent
  • User Site ID: S1993TX177007
  • User Pedon ID: 93TX177007
  • Vegetation Plot ID: S1993TX177007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0595
  • NCSS Pedon Lab Data NASIS Record ID - 65938
  • Print Date: 2/1/2025

    • 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: 29.2091675
  • Std. Longitude: -97.6844406
  • Datum: WGS84
  • Location Description: From the intersection of US Hwy 87 & Farm Rd 108 in Smiley, TX; 1 mile S on Farm Rd 108 to intersection with County Rd 211; 4 miles SW on County Rd 211 to intersection with County Rd 534; 1 mile NW on County Rd 534 to Ranch Rd; 0.4 mile SW then 0.2 mile N on Ranch Rd; 20 feet E in rangeland.
  • State: Texas
  • County: TX177—Gonzales
  • MLRA: 83A—Northern Rio Grande Plain
  • Non-MLRA Soil Survey Area: TX177—Gonzales County, Texas
  • 7.5 Minute USGS Quad: 29097-B6—Bald Mound, Texas

    • PEDON

  • Describers Name: Edward L. Griffin
  • Current Taxonomic Class: Fine, montmorillonitic, hyperthermic Vertic Ustochrepts
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Sampled As Information:
  • Soil Name - Denhawken
  • Taxonomic Class - Fine, montmorillonitic, hyperthermic Vertic Ustochrepts
  • PSC - 25 to 100 cm.
  • Classificaton Date - 6/10/1993
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: hillside
  • Microfeature: mound
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/10/1993 (actual site observation date)
  • Air Photo ID: A.S. 53
  • 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
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BORI

    BORI

    ECHIN2

    Bouteloua rigidiseta

    Bouteloua rigidiseta

    Echinocactus

    Texas grama

    Texas grama

    echinocactus

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    cambic horizon

    slickensides

    calcic horizon

    0—14

    14—46

    46—114

    85—200

    —-

    —-

    —-

    —-
    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

    2

    —

    —

    105

    —

    315

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 14 centimeters (0.0 to 5.5 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; clay loam; moderate very fine and fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; slow permeability; 20.0 very fine and fine roots and 2.0 coarse roots; 10.0 very fine and fine low-continuity tubular pores; 1 percent fine and medium spherical carbonate concretions throughout; fragments; 2 percent krotovinas (volume percent); strong effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 93P04217; moist when described;. few siliceous pebbles.
    Bw1—14 to 28 centimeters (5.5 to 11.0 inches); light olive brown (2.5Y 5/3), light yellowish brown (2.5Y 6/3), dry; clay; moderate fine and medium subangular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 15.0 very fine and fine roots and 0.5 coarse roots; 5.0 very fine and fine low-continuity tubular pores; 2 percent faint pressure faces; 1 percent fine and medium spherical carbonate concretions throughout; fragments; 1 percent krotovinas (volume percent); strong effervescence, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04218; moist when described;. few siliceous pebbles.; patchy - phpvsfiid 176116; patchy - phpvsfiid 176116
    Bw2—28 to 46 centimeters (11.0 to 18.1 inches); light olive brown (2.5Y 5/3), light yellowish brown (2.5Y 6/3), dry; clay; moderate medium angular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 2.0 very fine and fine roots and 0.5 medium roots; 2.0 fine low-continuity tubular pores; 1 percent prominent brown (10YR 4/3), moist, manganese or iron-manganese stains on faces of peds and 2 percent faint pressure faces; 1 percent fine and medium spherical carbonate concretions throughout; fragments; strong effervescence, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04219; moist when described;. few siliceous pebbles; few vertical cracks filled with 10YR 4/2 clay.; patchy - phpvsfiid 176117; patchy - phpvsfiid 176118; patchy - phpvsfiid 176117; patchy - phpvsfiid 176118
    Bss—46 to 85 centimeters (18.1 to 33.5 inches); light yellowish brown (2.5Y 6/3), pale yellow (2.5Y 7/3), dry; clay; 1 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate medium angular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 0.5 very fine and fine roots; 0.5 fine low-continuity tubular pores; 1 percent prominent brown (10YR 4/3), moist, manganese or iron-manganese stains on faces of peds and 5 percent distinct slickensides (pedogenic) on faces of peds; 1 percent fine and medium spherical carbonate concretions throughout; fragments; strong effervescence, by hcl, unspecified; gradual wavy boundary. Lab sample # 93P04220; moist when described;. few vertical cracks filled with 10YR 4/2 clay.; continuous - phpvsfiid 176119; patchy - phpvsfiid 176120; continuous - phpvsfiid 176119; patchy - phpvsfiid 176120
    Bkss—85 to 114 centimeters (33.5 to 44.9 inches); light yellowish brown (2.5Y 6/3), pale yellow (2.5Y 7/3), dry; clay; 1 percent strong brown (7.5YR 5/8) fine prominent mottles; weak medium and coarse subangular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 0.5 fine roots; 0.5 fine low-continuity tubular pores; 1 percent prominent very dark gray (10YR 3/1), moist, manganese or iron-manganese stains on faces of peds and 2 percent distinct slickensides (pedogenic) on faces of peds; 1 percent fine spherical carbonate concretions throughout and 10 percent fine and medium irregular carbonate masses throughout; fragments; strong effervescence, by hcl, unspecified; gradual wavy boundary. Lab sample # 93P04221; moist when described;. few vertical cracks filled with 10YR 4/2 clay.; continuous - phpvsfiid 176121; patchy - phpvsfiid 176122; continuous - phpvsfiid 176121; patchy - phpvsfiid 176122
    BCky1—114 to 140 centimeters (44.9 to 55.1 inches); light brownish gray (2.5Y 6/2), light gray (2.5Y 7/2), dry; silty clay; 1 percent yellowish red (5YR 5/8) fine prominent and 3 percent light olive brown (2.5Y 5/6) medium distinct mottles; weak very coarse prismatic parts to weak coarse subangular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 0.5 fine roots; 0.5 fine low-continuity tubular pores; 1 percent prominent very dark gray (10YR 3/1) manganese or iron-manganese stains on faces of peds and 2 percent faint pressure faces; 5 percent fine irregular gypsum masses throughout and 10 percent fine and medium irregular carbonate masses throughout; fragments; strong effervescence, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04222; moist when described;. patchy - phpvsfiid 176123; patchy - phpvsfiid 176124; patchy - phpvsfiid 176123; patchy - phpvsfiid 176124
    BCky2—140 to 178 centimeters (55.1 to 70.1 inches); light yellowish brown (2.5Y 6/3), pale yellow (2.5Y 7/3), dry; silty clay; 2 percent light olive brown (2.5Y 5/4) fine and medium distinct and 3 percent strong brown (7.5YR 5/8) medium prominent mottles; weak coarse subangular blocky structure; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 0.5 fine roots; 0.5 fine low-continuity tubular pores; 1 percent faint pressure faces; 5 percent fine platy gypsum crystals, unspecified throughout and 3 percent fine gypsum threads throughout and 10 percent fine and medium irregular carbonate masses throughout; fragments; strong effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 93P04223; moist when described;. patchy - phpvsfiid 176125; patchy - phpvsfiid 176125
    Cky—178 to 200 centimeters (70.1 to 78.7 inches); pale yellow (5Y 7/3), pale yellow (5Y 8/3), dry; silty clay; 1 percent yellowish red (5YR 5/8) fine prominent and 2 percent yellowish brown (10YR 5/8) fine prominent mottles; extremely hard, extremely firm*, very sticky, very plastic; very slow permeability; 0.5 fine roots in cracks; 1 percent prominent black (10YR 2/1) manganese or iron-manganese stains on faces of peds; 5 percent fine platy gypsum crystals, unspecified throughout and 5 percent fine and medium irregular gypsum masses throughout and 10 percent medium irregular carbonate masses throughout; fragments; strong effervescence, by hcl, unspecified. Lab sample # 93P04224; moist when described;. patchy - phpvsfiid 176126; patchy - phpvsfiid 176126