IDENTIFIERS

  • Current Taxon Name (Soil Name): Falfurrias
  • OSD
  • Series Extent
  • User Site ID: S2002-TX505-004
  • User Pedon ID: 02TX505004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 03N0180
  • NCSS Pedon Lab Data NASIS Record ID - 15691
  • User Project ID: C2003USTX037
  • Project Name: Duval Starr and Zapata Co South Texas
  • Print Date: 12/4/2024

    • 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: 27.0532494
  • Std. Longitude: -99.2443085
  • Datum: WGS84
  • Location Description: From the intersection of US Highway 83 and Texas Highway 16 in Zapata, 5.5 miles North on US Highway 83 to private ranch road, 10.7 miles east and north on ranch road, and 50 feet southeast in rangeland.
  • Country: US—United States
  • State: Texas
  • County: TX505—Zapata
  • MLRA: 83B—Western Rio Grande Plain
  • Regional Office: SC—South Central
  • Non-MLRA Soil Survey Area: TX505—Zapata County, Texas
  • 7.5 Minute USGS Quad: 27099-A2—Mogotes Hill, Texas

    • PEDON

  • Describers Name: Ramiro Molina, Nathan Haile, Maurice Jurena, Jamey Douglass, Wayne Gabriel, Paul Holland, Dennis Brezina
  • Current Taxonomic Class: Mixed, hyperthermic Aridic Ustipsamments
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 4
  • Sampled As Information:
  • Soil Name - Falfurrias
  • Taxonomic Class - Mixed, hyperthermic Aridic Ustipsamments
  • PSC - 25 to 100 cm.
  • Classificaton Date - 10/9/2002
  • Soil Taxonomic Edition - eighth edition
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: very low
  • Drainage Class: excessively
  • Flooding: none flooding
  • Geology: Eocene formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/9/2002 (actual site observation date)
  • Air Photo ID: E5
  • 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
  • Current Weather - overcast
  • Current Air Temp - 32
    • 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

    3.5

    —

    —

    167.7

    —

    225

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    —

    —

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    A1—0 to 10 centimeters (0.0 to 3.9 inches); dark yellowish brown (10YR 4/4) fine sand; single grain; soft, loose; low excavation difficulty; 4.0 very fine roots throughout and 3.0 fine roots throughout; fragments; noneffervescent; neutral, pH 7.3; clear smooth boundary. Lab sample # 03N00958
    A2—10 to 42 centimeters (3.9 to 16.5 inches); dark yellowish brown (10YR 4/4) fine sand; weak medium granular structure; soft, loose; low excavation difficulty; 3.0 very fine roots throughout and 2.0 fine roots throughout; fragments; noneffervescent; neutral, pH 7.3; gradual smooth boundary. Lab sample # 03N00959
    C1—42 to 91 centimeters (16.5 to 35.8 inches); strong brown (7.5YR 5/6) fine sand; weak coarse prismatic parts to single grain; soft, loose; low excavation difficulty; 2.0 very fine roots throughout and 1.0 fine roots throughout; fragments; noneffervescent; neutral, pH 7.3; gradual smooth boundary. Lab sample # 03N00960
    C2—91 to 142 centimeters (35.8 to 55.9 inches); reddish yellow (7.5YR 6/6) fine sand; weak coarse prismatic parts to single grain; soft, loose; low excavation difficulty; 2.0 very fine roots throughout and 1.0 fine roots throughout; fragments; noneffervescent; neutral, pH 7.3; gradual smooth boundary. Lab sample # 03N00961
    C3—142 to 203 centimeters (55.9 to 79.9 inches); light yellowish brown (10YR 6/4) fine sand; single grain; soft, loose; low excavation difficulty; 1.0 very fine roots throughout and 1.0 fine roots throughout; fragments; noneffervescent; neutral, pH 7.3. Lab sample # 03N00962