IDENTIFIERS

  • Current Taxon Name (Soil Name): Forbing
  • OSD
  • Series Extent
  • User Site ID: S2006LA017003
  • User Pedon ID: S2006LA017003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 06N0858
  • NCSS Pedon Lab Data NASIS Record ID - 18914
  • 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: 32.3712769
  • Std. Longitude: -93.7979736
  • Datum: WGS84
  • Map Unit: 21C—Forbing silt loam, 1 to 5 percent slopes
  • State: Louisiana
  • County: LA017—Caddo
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: LA017—Caddo Parish, Louisiana

    • PEDON

  • Describers Name: Marc Bordelon
  • Current Taxonomic Class: Very-fine, smectitic, thermic Vertic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - Forbing
  • Taxonomic Class - Very-fine, smectitic, thermic Vertic Paleudalfs
  • PSC - 15 to 65 cm.
  • Classificaton Date - 5/23/2006
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Slope Complexity: simple
  • Runoff: negligible
  • Drainage Class: well
  • Flooding: none flooding
  • Geology: Late Pleistocene member of the Terrace Deposits formation in the Prairie Complex group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/23/2006 (actual site observation date)
  • Air Photo ID: 24D
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and 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

    secondary carbonates

    slickensides

    —

    —

    —

    —-

    —-

    —-
    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

    —

    —

    53.2

    —

    350

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    OA—0 to 3 centimeters (0.0 to 1.2 inches); fragments; abrupt smooth boundary. Lab sample # 06N03698; moderately dry when described; observed in trench
    E/B—3 to 18 centimeters (1.2 to 7.1 inches); variegated 65 percent brown (7.5YR 5/4) broken face and 35 percent yellowish red (5YR 5/6) broken face silt loam; weak medium subangular blocky structure; nonsticky, nonplastic; moderately rapid permeability; 4.0 very fine roots throughout and 0.1 medium roots and 0.9 fine roots throughout; 8.0 very fine low-continuity irregular and 8.0 fine low-continuity irregular pores; 1 percent fine distinct spherical extremely weakly coherent cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries throughout; 1 percent by volume nonflat rounded very strongly coherent cemented iron-manganese concretions fragments; noneffervescent; clear wavy boundary. Lab sample # 06N03698; slightly dry when described; observed in trench
    Bss1—18 to 43 centimeters (7.1 to 16.9 inches); red (2.5YR 4/6) broken face clay; moderate coarse angular blocky structure; very sticky, very plastic; impermeable permeability; 4.0 very fine roots between peds and 1.0 medium roots between peds and 4.0 fine roots between peds; 0.5 very fine low-continuity dendritic tubular and 0.9 fine low-continuity dendritic tubular pores; 10 percent distinct slickensides (pedogenic) on faces of peds and 30 percent distinct pressure faces on faces of peds; 1 percent fine prominent spherical weakly coherent cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries throughout; 1 percent by volume very weakly coherent cemented iron-manganese nodules fragments; noneffervescent; gradual wavy boundary. Lab sample # 06N03699; moist when described; observed in trench. continuous - phpvsfiid 350843; discontinuous - phpvsfiid 350844; continuous - phpvsfiid 350843; discontinuous - phpvsfiid 350844
    Bss2—43 to 56 centimeters (16.9 to 22.0 inches); yellowish red (5YR 5/6) broken face clay; moderate coarse angular blocky structure; very sticky, very plastic; impermeable permeability; 4.0 very fine roots throughout and 1.0 medium roots between peds and 4.0 fine roots between peds; 0.5 very fine low-continuity dendritic tubular pores; 30 percent prominent slickensides (pedogenic) on faces of peds and 70 percent distinct pressure faces on faces of peds; 1 percent fine prominent spherical very weakly coherent cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries throughout; 1 percent by volume iron-manganese nodules fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; gradual wavy boundary. Lab sample # 06N03700; moist when described; observed in trench. continuous - phpvsfiid 350845; discontinuous - phpvsfiid 350846; continuous - phpvsfiid 350845; discontinuous - phpvsfiid 350846
    Bss3—56 to 74 centimeters (22.0 to 29.1 inches); dark reddish brown (5YR 3/4) broken face clay; moderate medium prismatic parts to moderate medium angular blocky structure; very sticky, very plastic; impermeable permeability; 4.0 very fine roots between peds and 2.0 medium roots between peds and 4.0 fine roots between peds; 0.1 very fine low-continuity dendritic tubular pores; 30 percent distinct slickensides (pedogenic) on faces of peds and 60 percent prominent pressure faces on faces of peds; 3 percent fine prominent spherical weakly coherent cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries throughout; fragments; noneffervescent; moderately acid, pH 6.0, hellige-truog; gradual wavy boundary. Lab sample # 06N03701; moist when described; observed in trench. continuous - phpvsfiid 350847; discontinuous - phpvsfiid 350848; continuous - phpvsfiid 350847; discontinuous - phpvsfiid 350848
    Bkss1—74 to 126 centimeters (29.1 to 49.6 inches); reddish brown (2.5YR 4/4) broken face clay; moderate medium prismatic parts to moderate medium angular blocky structure; very sticky, very plastic; impermeable permeability; 4.0 very fine roots between peds and 1.0 medium roots between peds and 4.0 fine roots between peds; 0.1 very fine low-continuity dendritic tubular pores; 25 percent prominent slickensides (pedogenic) on faces of peds and 50 percent prominent pressure faces on faces of peds; 1 percent fine prominent spherical weakly coherent cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries throughout; 10 percent medium spherical strongly coherent cemented carbonate concretions with sharp boundaries on faces of peds; fragments; strong effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 06N03702; moist when described; observed in trench. continuous - phpvsfiid 350850; discontinuous - phpvsfiid 350849; continuous - phpvsfiid 350850; discontinuous - phpvsfiid 350849
    Bkss2—126 to 161 centimeters (49.6 to 63.4 inches); reddish brown (5YR 4/4) broken face silty clay; moderate medium prismatic parts to moderate medium angular blocky structure; very sticky, very plastic; impermeable permeability; 0.8 very fine roots between peds and 0.8 fine roots between peds; 0.1 very fine low-continuity dendritic tubular pores; 15 percent distinct slickensides (pedogenic) on faces of peds and 15 percent distinct organic stains on faces of peds and 40 percent prominent pressure faces on faces of peds; 1 percent fine spherical extremely weakly coherent cemented carbonate masses with clear boundaries throughout; fragments; strong effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 06N03703; moist when described; observed in trench. continuous - phpvsfiid 350851; discontinuous - phpvsfiid 350852; discontinuous - phpvsfiid 350853; continuous - phpvsfiid 350851; discontinuous - phpvsfiid 350852; discontinuous - phpvsfiid 350853
    Bkss3—161 to 183 centimeters (63.4 to 72.0 inches); reddish brown (2.5YR 4/4) broken face silty clay; moderate medium prismatic parts to moderate medium angular blocky structure; very sticky, very plastic; impermeable permeability; 0.1 very fine roots between peds; 0.1 very fine low-continuity dendritic tubular pores; 20 percent distinct organic stains on faces of peds and 25 percent distinct pressure faces on faces of peds and 25 percent prominent slickensides (pedogenic) on faces of peds; 10 percent medium spherical strongly coherent cemented carbonate concretions with clear boundaries on faces of peds; fragments; violent effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 06N03704; moist when described; observed in trench. discontinuous - phpvsfiid 350854; discontinuous - phpvsfiid 350855; discontinuous - phpvsfiid 350856; discontinuous - phpvsfiid 350854; discontinuous - phpvsfiid 350855; discontinuous - phpvsfiid 350856
    BC—183 to 209 centimeters (72.0 to 82.3 inches); reddish brown (2.5YR 4/4) broken face silty clay; moderate medium prismatic parts to moderate medium angular blocky structure; very sticky, very plastic; impermeable permeability; 0.1 very fine roots between peds; 0.1 very fine low-continuity dendritic tubular pores; 20 percent prominent organic stains on faces of peds and 25 percent distinct pressure faces on faces of peds and 25 percent prominent on faces of peds; 10 percent medium prominent irregular masses of reduced iron throughout; 10 percent medium spherical moderately coherent cemented carbonate masses with diffuse boundaries throughout; fragments; slight effervescence, by hcl, 1n. Lab sample # 06N03705; moist when described; observed in trench. discontinuous - phpvsfiid 350857; discontinuous - phpvsfiid 350859; discontinuous - phpvsfiid 350858; discontinuous - phpvsfiid 350857; discontinuous - phpvsfiid 350859; discontinuous - phpvsfiid 350858