IDENTIFIERS

  • Current Taxon Name (Soil Name): Monwebb
  • OSD
  • Series Extent
  • User Site ID: S2003-TX479-001
  • User Pedon ID: S03-TX479-Mo
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 04N0338
  • NCSS Pedon Lab Data NASIS Record ID - 16393
  • Print Date: 5/31/2024

    • 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: 27.9804020
  • Std. Longitude: -98.8613586
  • Datum: WGS84
  • Location Description: Starting from northwestern Duval County, at the intersection of U.S. Highway 59 and Texas Highway 44, located west of Freer; northwest 13.4 miles on Texas Highway 44 into Webb County to the intersection of county road, Pintas-Adami Road North; then north on Pintas-Adami Road 3.1 miles; site is located 800 feet northwest along sendero in rangeland.
  • Map Unit: Mo—Monwebb clay, 0 to 1 percent slopes, occasionally flooded
  • Country: US—United States
  • State: Texas
  • County: TX479—Webb
  • MLRA: 83C—Central Rio Grande Plain
  • Regional Office: SC—South Central
  • Non-MLRA Soil Survey Area: TX479—Webb County, Texas
  • 7.5 Minute USGS Quad: 27098-H7—Biel Lake NE, Texas

    • PEDON

  • Describers Name: Paul Holland, Jamey Douglass
  • Current Taxonomic Class: Fine, smectitic, hyperthermic Sodic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Monwebb
  • PSC - 25 to 100 cm.
  • Classificaton Date - 11/12/2003
  • Classifier - Gary Harris
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Monwebb
  • Taxonomic Class - Fine, smectitic, hyperthermic Sodic Haplusterts
  • PSC - 25 to 100 cm.
  • Classificaton Date - 11/12/2003
  • Soil Taxonomic Edition - eighth edition
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified


    • SITE

  • Landscape: alluvial plain
  • Landform: broad drainageway
  • Microfeature: gilgai
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: negligible
  • Drainage Class: moderately well
  • Flooding: occasional flooding for very brief periods begining in may
  • Ponding: none ponding
  • Geology: Jackson Group formation of the Jackson Group group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/12/2003 (actual site observation date)
  • Air Photo ID: AS-33
  • Surface Water Kind: none observed
  • Microrelief Kind: microlow
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, shrubby
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - partly cloudy
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    slickensides

    salic horizon

    calcic horizon

    secondary carbonates

    0—28

    28—118

    70—210

    99—210

    118—177

    —-

    —-

    —-

    —-

    —-
    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

    0.3

    61

    15

    96

    —

    350

    638

    —

    290

    22.2

    28

    13

    22

    —

    —

    —

    —

    TX3341

    Freer, TX3341

    TAPS
    A—0 to 12 centimeters (0.0 to 4.7 inches);, very dark grayish brown (10YR 3/2) broken face, moist; clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; very slow permeability; 5.0 medium roots and 5.0 fine roots and 1.0 coarse roots; 1.0 very fine tubular pores; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, pH meter, saturated paste; clear wavy boundary. Lab sample # 04N01929; moist when described; observed in pit, small
    An—12 to 28 centimeters (4.7 to 11.0 inches);, very dark grayish brown (10YR 3/2) broken face, moist; clay; moderate medium angular blocky parts to weak very fine wedge structure; very hard, very firm, very sticky, very plastic; very slow permeability; 1.0 medium roots and 2.0 fine roots; 1.0 very fine tubular pores; 5 percent distinct pressure faces; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.7, pH meter, saturated paste; clear wavy boundary. Lab sample # 04N01930; moist when described; observed in pit, small
    Bnss—28 to 70 centimeters (11.0 to 27.6 inches);, very dark grayish brown (10YR 3/2) broken face, moist; clay; moderate fine and medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; very slow permeability; 2.0 very fine and fine roots and 1.0 coarse roots; 1.0 very fine tubular pores; 10 percent distinct pressure faces on vertical faces of peds; 1 percent fine distinct yellowish brown (10YR 5/4), moist, masses of oxidized iron with diffuse boundaries lining pores; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, pH meter, saturated paste; clear wavy boundary. Lab sample # 04N01931; moist when described; observed in pit, small. discontinuous - phpvsfiid 249860; discontinuous - phpvsfiid 249860
    Bnssz—70 to 99 centimeters (27.6 to 39.0 inches);, very dark grayish brown (10YR 3/2) broken face, moist; clay; moderate fine and medium prismatic parts to moderate fine and medium angular blocky structure; extremely hard, firm, very sticky, very plastic; very slow permeability; 2.0 very fine and fine roots; 1.0 very fine tubular pores; 1 percent fine distinct yellowish brown (10YR 5/4), moist, masses of oxidized iron with diffuse boundaries lining pores; 3 percent fine threadlike salt masses in matrix and 1 percent very fine salt crystals; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, pH meter, saturated paste; gradual wavy boundary. Lab sample # 04N01932; moist when described; observed in pit, small
    Bknssz—99 to 118 centimeters (39.0 to 46.5 inches);, dark grayish brown (10YR 4/2) broken face, moist; clay; moderate medium and coarse prismatic parts to moderate medium angular blocky structure; extremely hard, firm, very sticky, very plastic; very slow permeability; 1.0 very fine and fine roots; 1.0 very fine tubular pores; 1 percent faint dark grayish brown (10YR 4/2), moist, organic stains on vertical faces of peds; 2 percent fine salt masses and 1 percent very fine threadlike salt masses; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.1, pH meter, saturated paste; gradual wavy boundary. Lab sample # 04N01933; moist when described; observed in pit, small
    Bknz1—118 to 150 centimeters (46.5 to 59.1 inches);, 70 percent brown (10YR 5/3) broken face and 20 percent dark grayish brown (10YR 4/2) broken face and 10 percent light brownish gray (10YR 6/2) broken face, moist; clay loam; weak medium and coarse prismatic parts to moderate medium angular blocky structure; extremely hard, firm, very sticky, very plastic; very slow permeability; 1.0 very fine and fine roots; 1.0 very fine tubular pores; 1 percent medium faint light gray (10YR 7/1), moist, iron depletions with diffuse boundaries in matrix and 1 percent very fine distinct manganese masses; 3 percent medium and coarse carbonate masses; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.1, pH meter, saturated paste; diffuse wavy boundary. Lab sample # 04N01934; moist when described; observed in pit, small
    Bknz2—150 to 177 centimeters (59.1 to 69.7 inches);, 60 percent pale brown (10YR 6/3) broken face and 40 percent light brownish gray (10YR 6/2) broken face, moist; clay loam; weak medium and coarse prismatic parts to moderate medium angular blocky structure; very hard, firm, moderately sticky, moderately plastic; very slow permeability; 2.0 very fine tubular pores; 1 percent very fine carbonate masses; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.1, pH meter, saturated paste; diffuse wavy boundary. Lab sample # 04N01935; moist when described; observed in pit, small
    Bknz3—177 to 210 centimeters (69.7 to 82.7 inches);, pale brown (10YR 6/3) broken face, moist; clay loam; weak medium prismatic parts to moderate medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; very slow permeability; 1.0 very fine tubular pores; 1 percent by volume nonflat subrounded indurated 5-13-15 millimeter chert fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, pH meter, saturated paste. Lab sample # 04N01936; moist when described; observed in pit, small