IDENTIFIERS

  • Current Taxon Name (Soil Name): Armistead
  • OSD
  • Series Extent
  • User Site ID: S2010LA0810001
  • User Pedon ID: S2010LA081001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 11N0008
  • NCSS Pedon Lab Data NASIS Record ID - 43415
  • Print Date: 5/30/2024

    • 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: 32.1967500
  • Std. Longitude: -93.5050556
  • Datum: WGS84
  • Township: 14N
  • Range: 11W
  • Section: 16
  • Location Description: 1 mile west of LA Hwy. 1 at Williams on Yearwood Road; 1560 feet west of Yearwood Road on field road; 20 feet south of field road; site is 960 feet north of the center of south section line
  • 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-B5—Clear Lake, Louisiana

    • PEDON

  • Describers Name: Henry & Bolin
  • Current Taxonomic Class: Fine-silty, mixed, active, thermic Aquic Pachic argiu Argiudolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Sampled As Information:
  • Soil Name - Armistead
  • Taxonomic Class - Fine-silty, mixed, active, thermic Aquic Pachic argiu Argiudolls
  • PSC - 62 to 112 cm.
  • Classificaton Date - 9/20/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium over loamy 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: 9/20/2010 (actual site observation date)
  • Air Photo ID: 2
  • 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

    mollic epipedon

    lithologic discontinuity

    redox depletions with chroma 2 or less

    argillic horizon

    0—62

    35—200

    35—62

    62—135

    —-

    —-

    —-

    —-
    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 15 centimeters (0.0 to 5.9 inches); dark reddish brown (5YR 3/2) clay; moderate medium subangular blocky parts to strong medium subangular blocky structure; very hard, firm; 3.0 medium roots and 5.0 fine roots; 3.0 fine irregular pores; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, hellige-truog; gradual smooth boundary. Lab sample # 11N00070; dry when described; observed in pit, small
    A—15 to 35 centimeters (5.9 to 13.8 inches); dark reddish brown (5YR 3/3) clay; moderate medium subangular blocky parts to moderate coarse prismatic structure; very hard, firm; 3.0 medium roots and 2.0 fine roots; 1.0 fine irregular pores; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 11N00071; dry when described; observed in pit, small
    2Ab1—35 to 47 centimeters (13.8 to 18.5 inches); very dark gray (5YR 3/1) silty clay loam; moderate medium subangular blocky structure; hard, firm; 1.0 medium roots and 1.0 fine roots; 2.0 very fine irregular pores; black (5YR 2.5/1), moist,; 1 percent fine prominent gray (10YR 5/1), moist, masses of reduced iron and 15 percent medium faint black (5YR 2.5/1), moist, manganese coatings; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary. Lab sample # 11N00072; slightly dry when described; observed in pit, small
    2Ab2—47 to 62 centimeters (18.5 to 24.4 inches); dark reddish brown (5YR 3/2) silty clay loam; moderate medium subangular blocky parts to moderate coarse prismatic structure; very hard, firm; 1.0 medium roots and 1.0 fine roots; 4.0 very fine irregular and 1.0 fine irregular pores; very dark gray (5YR 3/1), moist,; 1 percent fine prominent gray (10YR 5/1), moist, masses of reduced iron and 15 percent medium faint black (5YR 2.5/1), moist, manganese coatings; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; diffuse smooth boundary. Lab sample # 11N00073; slightly dry when described; observed in pit, small
    2Btb1—62 to 85 centimeters (24.4 to 33.5 inches); yellowish red (5YR 4/6) silty clay loam; moderate medium subangular blocky parts to moderate coarse prismatic structure; moderately hard, firm; 1.0 fine roots; 5.0 very fine irregular and 1.0 fine irregular pores; 50 percent faint reddish brown (5YR 4/4), moist, clay films; 1 percent fine irregular carbonate nodules; fragments; very slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 11N00074; slightly dry when described; observed in pit, small
    2Btb2—85 to 110 centimeters (33.5 to 43.3 inches); yellowish red (5YR 4/6) silty clay loam; moderate medium subangular blocky structure; slightly hard, firm; 1.0 fine roots; 3.0 very fine irregular pores; 40 percent faint reddish brown (5YR 4/4), moist, clay films; 1 percent fine distinct black (5YR 2.5/1), moist, manganese coatings; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary. Lab sample # 11N00075; slightly moist when described; observed in pit, small
    2Btb3—110 to 135 centimeters (43.3 to 53.1 inches); yellowish red (5YR 5/6) silt loam; weak medium subangular blocky parts to weak fine subangular blocky structure; slightly hard, friable; 1.0 fine roots; 5.0 very fine irregular pores; 20 percent faint reddish brown (5YR 4/4), moist, clay films; 3 percent fine distinct black (5YR 2.5/1), moist, manganese coatings; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 11N00076; slightly moist when described; observed in pit, small
    2C1—135 to 161 centimeters (53.1 to 63.4 inches); 55 percent reddish brown (5YR 4/4) and 45 percent yellowish red (5YR 5/6) stratified stratified silty clay loam to silt loam; structureless massive; moderately hard, firm; 1.0 medium roots; 1.0 very fine irregular and 2.0 fine irregular pores; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 11N00077; slightly moist when described; observed in pit, small
    2C2—161 to 182 centimeters (63.4 to 71.7 inches); 60 percent reddish yellow (5YR 6/6) and 40 percent yellowish red (5YR 5/6) very fine sandy loam; structureless massive; soft, very friable; 1.0 very fine irregular pores; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary. Lab sample # 11N00078; slightly moist when described; observed in pit, small
    2C3—182 to 200 centimeters (71.7 to 78.7 inches); yellowish red (5YR 5/6) silt loam; structureless massive; soft, very friable; 1.0 very fine irregular pores; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, hellige-truog. Lab sample # 11N00079; slightly moist when described; observed in pit, small