IDENTIFIERS

  • Current Taxon Name (Soil Name): Coushatta
  • OSD
  • Series Extent
  • User Site ID: S2010LA0810002
  • User Pedon ID: S2010LA081002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 11N0009
  • NCSS Pedon Lab Data NASIS Record ID - 43416
  • Print Date: 1/30/2025

    • 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: 31.9940278
  • Std. Longitude: -93.3633056
  • Datum: WGS84
  • Township: 12N
  • Range: 10W
  • Section: 26
  • PLSS Details: SW1/4, SE1/4
  • Location Description: 1.1 miles southeast of Armistead; 0.6 mile east of LA Hwy 1 on farm road; 200 feet south of road in cultivated field
  • State: Louisiana
  • County: LA081—Red River
  • MLRA: 131C—Red River Alluvium
  • Non-MLRA Soil Survey Area: LA081—Red River Parish, Louisiana
  • 7.5 Minute USGS Quad: 32093-G6—Hughes, Louisiana

    • PEDON

  • Describers Name: Henry & Bolin
  • Current Taxonomic Class: Fine-silty, mixed, superactive, thermic Fluventic Eutrudepts
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Sampled As Information:
  • Soil Name - Coushatta
  • Taxonomic Class - Fine-silty, mixed, superactive, thermic Fluventic Eutrudepts
  • PSC - 23 to 73 cm.
  • Classificaton Date - 9/21/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: silty alluvium
  • Landscape: alluvial plain
  • Landform: natural levee
  • Geomorphic Component Flats: talf
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Geology: Red River Alluvium formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/21/2010 (actual site observation date)
  • Air Photo ID: 27
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • 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

    lithologic discontinuity

    0—23

    23—100

    142—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

    0.3

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); reddish brown (5YR 4/4) silt loam; weak medium subangular blocky structure; soft, friable; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.5, hellige-truog; clear wavy boundary. Lab sample # 11N00080; dry when described; observed in pit, small
    Bw1—23 to 53 centimeters (9.1 to 20.9 inches); reddish brown (5YR 4/3) silty clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; moderately hard, friable; 1.0 fine roots; 1.0 fine irregular pores; ; fragments; noneffervescent, by hcl, 1n; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 11N00081; dry when described; observed in pit, small
    Bw2—53 to 74 centimeters (20.9 to 29.1 inches); reddish brown (5YR 4/4) silty clay loam; moderate medium subangular blocky structure; moderately hard, friable; 1.0 fine roots; 3.0 fine irregular pores; reddish brown (5YR 4/3), moist,; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 11N00082; slightly dry when described; observed in pit, small
    Bw3—74 to 100 centimeters (29.1 to 39.4 inches); reddish brown (5YR 4/4) silt loam; 15 percent reddish brown (5YR 4/3) medium faint mottles; weak medium subangular blocky structure; slightly hard, friable; 2.0 fine roots; 2.0 fine irregular pores; reddish brown (5YR 4/3), moist,; 3 percent coarse distinct black (5YR 2.5/1), moist, manganese coatings; fragments; very slight effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 11N00083; slightly dry when described; observed in pit, small
    C1—100 to 118 centimeters (39.4 to 46.5 inches); 50 percent light reddish brown (5YR 6/4) and 43 percent reddish brown (5YR 5/4) silt loam; structureless massive; soft, very friable; 1.0 fine roots; 2.0 medium irregular and 2.0 fine irregular pores; 2 percent coarse distinct black (5YR 2.5/1), moist, manganese coatings and 5 percent medium distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 11N00084; slightly moist when described; observed in pit, small
    C2—118 to 129 centimeters (46.5 to 50.8 inches); 60 percent reddish brown (5YR 5/4) and 33 percent reddish brown (5YR 4/4) silt loam; structureless massive; slightly hard, friable; 2.0 fine roots; 3.0 fine irregular pores; 3 percent medium distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron and 4 percent medium distinct black (5YR 2.5/1), moist, manganese coatings; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; clear wavy boundary. Lab sample # 11N00085; slightly moist when described; observed in pit, small
    C3—129 to 142 centimeters (50.8 to 55.9 inches); 70 percent reddish brown (5YR 5/4) and 25 percent yellowish red (5YR 5/6) silt loam; structureless massive; slightly hard, friable; 1.0 very fine roots; 1.0 very fine irregular pores; 5 percent medium distinct black (5YR 2.5/1), moist, manganese coatings; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 11N00086; slightly moist when described; observed in pit, small
    2Ab1—142 to 167 centimeters (55.9 to 65.7 inches); 66 percent reddish brown (5YR 5/4) and 20 percent reddish brown (2.5YR 4/3) silty clay loam; moderate medium subangular blocky parts to moderate medium prismatic structure; moderately hard, firm; 1.0 fine roots; 1.0 fine irregular pores; 3 percent medium distinct black (5YR 2.5/1), moist, manganese coatings and 10 percent medium prominent weak red (2.5YR 5/2), moist, masses of reduced iron; 1 percent fine carbonate nodules; fragments; very slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 11N00087; slightly moist when described; observed in pit, small
    2Ab2—167 to 200 centimeters (65.7 to 78.7 inches); dark gray (5YR 4/1) silty clay loam; moderate medium subangular blocky parts to moderate medium prismatic structure; moderately hard, firm; 20 percent medium distinct dark reddish brown (2.5YR 3/4), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 11N00095; slightly moist when described; observed in pit, small