IDENTIFIERS

  • Current Taxon Name (Soil Name): Darco
  • OSD
  • Series Extent
  • User Site ID: S80TX405003
  • User Pedon ID: S80TX405003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - TAMU
  • Lab Pedon # - S80TX405003
  • NCSS Pedon Lab Data NASIS Record ID - 45667
  • Print Date: 5/19/2024

    • 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: 31.3575859
  • Std. Longitude: -94.2766724
  • Datum: WGS84
  • Location Description: From intersection of Texas 103 and FR 1277, 2.0 miles south on FR 1277 to Forest Service road, 0.5 mile east, and 100 feet norht in forest.
  • Map Unit: 18EF—Darco loamy fine sand, 8 to 15 percent slopes
  • Country: US—United States
  • State: Texas
  • County: TX405—San Augustine
  • MLRA: 133B—Western Coastal Plain
  • Regional Office: 16obsolete—Little Rock, AR
  • Non-MLRA Soil Survey Area: TX619—San Augustine and Sabine Counties, Texas

    • PEDON

  • Describers Name: Wilding,Hallmark,West,Brockmann,Fuchs,Holt,Gray,Peters
  • Current Taxonomic Class: Loamy, siliceous, semiactive, thermic Grossarenic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Correlated Information:
  • Soil Name - Darco
  • PSC - 160 to 190 cm.
  • Classificaton Date - 6/4/2012
  • Sampled As Information:
  • Soil Name - Darco variant
  • Classificaton Date - 8/12/1980
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Hill Slope Profile: backslope
  • Runoff: low
  • Drainage Class: well
  • Geology: Yegua formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/12/1980 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - conifers
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    albic materials

    argillic horizon

    0—10

    141—160

    160—190

    —-

    —-

    —-
    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

    0.5

    —

    —

    64

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2) fine sand; weak fine granular structure; loose, very friable; 8.0 medium roots and 8.0 fine roots; fragments; slightly acid, pH 6.5; clear wavy boundary. Lab sample # TAMU903
    E1—10 to 35 centimeters (3.9 to 13.8 inches); brown (10YR 5/3) fine sand; single grain; loose, very friable; 8.0 fine roots; fragments; moderately acid, pH 5.8; gradual wavy boundary. Lab sample # TAMU904
    E2—35 to 90 centimeters (13.8 to 35.4 inches); pale brown (10YR 6/3) fine sand; single grain; loose, very friable; 3.0 fine roots; fragments; moderately acid, pH 5.8; clear wavy boundary. Lab sample # TAMU905
    E3—90 to 113 centimeters (35.4 to 44.5 inches); pale brown (10YR 6/3) fine sand; single grain; loose, very friable; 0.9 fine roots; fragments; 1 percent lamellae (volume percent); moderately acid, pH 5.8; clear wavy boundary. Lab sample # TAMU906
    E4—113 to 141 centimeters (44.5 to 55.5 inches); very pale brown (10YR 7/3) fine sand; single grain; loose, very friable; 0.9 fine roots; 0.9 fine pores; fragments; moderately acid, pH 5.6; clear wavy boundary. Lab sample # TAMU907
    E/Bt—141 to 160 centimeters (55.5 to 63.0 inches); brownish yellow (10YR 6/6) fine sandy loam; weak coarse subangular blocky structure; hard, friable; 0.9 fine roots; 10 percent medium distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; strongly acid, pH 5.5; clear wavy boundary. Lab sample # TAMU908
    Bt—160 to 190 centimeters (63.0 to 74.8 inches); yellowish red (5YR 5/6) sandy clay loam; moderate very coarse prismatic parts to weak medium subangular blocky structure; hard, friable; 0.9 fine roots; 0.9 fine pores; 15 percent clay films on all faces of peds; 10 percent medium distinct red (2.5YR 4/6), moist, masses of oxidized iron and 10 percent coarse distinct brownish yellow (10YR 6/6), moist, masses of oxidized iron; fragments; strongly acid, pH 5.3. Lab sample # TAMU909
    BC—261 to 273 centimeters (102.8 to 107.5 inches); fragments. Lab sample # TAMU910