IDENTIFIERS

  • Current Taxon Name (Soil Name): Dupuy
  • OSD
  • Series Extent
  • User Site ID: S2002LA101002
  • User Pedon ID: S2002LA101002
  • Vegetation Plot ID: S2002LA101002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 02N0338
  • NCSS Pedon Lab Data NASIS Record ID - 14695
  • Print Date: 11/24/2024

    • 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: 29.6001358
  • Std. Longitude: -91.5196915
  • Datum: WGS84
  • Location Description: 15.5 miles west of Morgan City on US Hwy. 90, then 13.8 miles southwest of US Hwy. 90 on State Road 317, then 160 yards northeast of State Road 317 on oil field road, then 50 feet north of road on pipeline right of way
  • Map Unit: DsA—Dupuy silt loam, 0 to 1 percent slopes, occasionally flooded
  • State: Louisiana
  • County: LA101—St. Mary
  • MLRA: 131—Southern Mississippi Valley Alluvium
  • Regional Office: 7—Auburn, AL
  • Non-MLRA Soil Survey Area: LA101—St. Mary Parish, Louisiana
  • 7.5 Minute USGS Quad: 29091-E5—Point Chevreuil, Louisiana

    • PEDON

  • Describers Name: Doug Slabaugh
  • Current Taxonomic Class: Fine-silty, mixed, active, hyperthermic Aeric Endoaqualfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Dupuy (flagged as OSD)
  • PSC - 25 to 75 cm.
  • Classificaton Date - 2/1/2010
  • Classifier - Doub Slabaugh
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Dupuy (flagged as OSD)
  • Taxonomic Class - Fine-silty, mixed, active, hyperthermic Aeric Endoaqualfs
  • Taxon Kind - series
  • PSC - 25 to 75 cm.
  • Classificaton Date - 6/2/2016
  • Classifier - Doug Slabaugh
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: river valley
  • Landform: delta plain
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/30/2002 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    —

    ochric epipedon

    argillic horizon

    —

    0—25

    25—107

    —-

    —25—

    —82—
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oe—0 to 6 centimeters (0.0 to 2.4 inches); very dark grayish brown (10YR 3/2) slightly decomposed plant material; fragments; abrupt smooth boundary. Lab sample # 02N01670
    A—6 to 16 centimeters (2.4 to 6.3 inches); dark grayish brown (10YR 4/2) silt loam; moderate fine and medium granular structure; very friable; 10.0 fine and medium roots throughout; 2 percent fine prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores and 10 percent coarse prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # 02N01671
    A/B—16 to 26 centimeters (6.3 to 10.2 inches); brown (10YR 4/3) silt loam; moderate fine subangular blocky structure; very friable; 10.0 fine and medium roots throughout; 1 percent fine prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores and 10 percent coarse prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; 20 percent of linings on crawfish burrows; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # 02N01672
    Bt1—26 to 56 centimeters (10.2 to 22.0 inches); light olive brown (2.5Y 5/3) silty clay loam; moderate fine and medium subangular blocky structure; friable; 5.0 fine and medium roots between peds; 8 percent faint dark grayish brown (10YR 4/2), moist, clay films on faces of peds and in pores; 2 percent fine prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores and 15 percent fine faint dendritic iron depletions on surfaces along root channels and 21 percent coarse prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; 20 percent of linings on crawfish burrows; extremely acid, pH 4.3, hellige-truog; gradual smooth boundary. Lab sample # 02N01673
    Bt2—56 to 79 centimeters (22.0 to 31.1 inches); grayish brown (10YR 5/2) silty clay loam; weak fine subangular blocky structure; friable, moderately sticky, very plastic; 5.0 fine and medium roots between peds; 1.0 very fine and fine dendritic tubular pores; 3 percent faint dark grayish brown (10YR 4/2), moist, clay films on faces of peds and in pores; 1 percent fine prominent cylindrical very dark grayish brown (10YR 3/2), moist, manganese coatings lining pores and 1 percent fine prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores and 15 percent medium and coarse distinct irregular yellowish brown (10YR 5/4), moist, masses of oxidized iron on faces of peds; fragments; 2 percent krotovinas (lateral area percent); extremely acid, pH 4.1, hellige-truog; gradual smooth boundary. Lab sample # 02N01674
    Btg—79 to 107 centimeters (31.1 to 42.1 inches); grayish brown (10YR 5/2) silt loam; weak fine subangular blocky structure; friable, moderately sticky, very plastic; 5.0 fine and medium roots between peds; 1.0 very fine and fine dendritic tubular pores; 3 percent faint dark grayish brown (10YR 4/2), moist, clay films on faces of peds and in pores; 2 percent fine prominent cylindrical very dark grayish brown (10YR 3/2), moist, manganese coatings lining pores and 2 percent fine prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores and 5 percent medium distinct dendritic gray (5Y 5/1), moist, iron depletions on surfaces along root channels and 15 percent medium and coarse distinct irregular dark yellowish brown (10YR 4/6), moist, masses of oxidized iron on faces of peds; fragments; 3 percent krotovinas (lateral area percent); very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # 02N01675
    BCg1—107 to 129 centimeters (42.1 to 50.8 inches); gray (10YR 5/1) silt loam; weak fine subangular blocky structure; friable, moderately sticky, very plastic; 3.0 very fine and fine roots throughout; 1.0 very fine and fine dendritic tubular pores; 1 percent faint clay films on surfaces along pores; 2 percent fine prominent cylindrical very dark grayish brown (10YR 3/2), moist, manganese coatings lining pores and 3 percent fine prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron throughout and 10 percent medium distinct dendritic gray (5Y 5/1), moist, iron depletions on surfaces along root channels and 15 percent medium and coarse prominent irregular dark yellowish brown (10YR 4/6), moist, masses of oxidized iron throughout; fragments; 3 percent krotovinas (lateral area percent); strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # 02N01676
    BCg2—129 to 160 centimeters (50.8 to 63.0 inches); gray (5Y 5/1) silty clay loam; weak fine subangular blocky structure; friable, moderately sticky, very plastic; 3.0 very fine and fine roots throughout; 1.0 very fine and fine dendritic tubular pores; 1 percent faint gray (10YR 5/1), moist, clay films on surfaces along pores; 2 percent fine prominent cylindrical very dark grayish brown (10YR 3/2), moist, manganese coatings lining pores and 15 percent medium and coarse prominent irregular strong brown (7.5YR 5/6), moist, and strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout; fragments; 3 percent krotovinas (lateral area percent); slightly acid, pH 6.5, hellige-truog; diffuse smooth boundary. Lab sample # 02N01677
    BCg3—160 to 180 centimeters (63.0 to 70.9 inches); gray (5Y 5/1) silty clay loam; weak fine subangular blocky structure; friable, moderately sticky, very plastic; 1.0 very fine and fine roots throughout; 1.0 very fine and fine dendritic tubular pores; 1 percent faint dark grayish brown (10YR 4/2), moist, clay films on surfaces along pores; 15 percent medium and coarse prominent irregular strong brown (7.5YR 4/6), moist, and strong brown (7.5YR 5/6), moist, masses of oxidized iron throughout; fragments; 3 percent krotovinas (lateral area percent); slightly acid, pH 6.5, hellige-truog. Lab sample # 02N01678