IDENTIFIERS

  • Current Taxon Name (Soil Name): Carville
  • OSD
  • Series Extent
  • User Site ID: S2002LA095003
  • User Pedon ID: S2002LA095003
  • Vegetation Plot ID: S2002LA095003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 02N0335
  • NCSS Pedon Lab Data NASIS Record ID - 14692
  • Print Date: 11/12/2024

    • 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: 30.0686798
  • Std. Longitude: -90.4638977
  • Datum: WGS84
  • Location Description: from the intersection of US Highways 51 and 61 in LaPlace, Louisiana, 0.6 mile southeast on US Highway 61, then 1 mile northeast on Oswald Avenue, then 450 feet northwest through tree line, then 1/4 mile southwest along tree line, and 250 feet due north into pasture.
  • Map Unit: CvA—Carville silt loam, 0 to 1 percent slopes
  • State: Louisiana
  • County: LA095—St. John the Baptist
  • MLRA: 131—Southern Mississippi Valley Alluvium
  • Regional Office: 7—Auburn, AL
  • Non-MLRA Soil Survey Area: LA601—St. James and St. John the Baptist Parishes, LouisianaLA095—St. John the Baptist Parish, Louisiana
  • 7.5 Minute USGS Quad: 30090-A4—Laplace, Louisiana

    • PEDON

  • Describers Name: Doug Slabaugh
  • Current Taxonomic Class: Coarse-silty, mixed, superactive, nonacid, thermic Fluvaquentic Endoaquepts
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Carville
  • Classificaton Date - 1/8/2003
  • Sampled As Information:
  • Soil Name - Carville
  • Classificaton Date - 5/29/2002
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: silty alluvium
  • Landscape: delta plain
  • Landform: natural levee
  • Slope Shape Down: convex
  • Runoff: very low
  • Drainage Class: somewhat poorly
  • Geology: Holocene Age Fluvial Sediments formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/29/2002 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CASC11

    CYDA

    Carex scoparia

    Cynodon dactylon

    broom sedge

    Bermudagrass

    —

    —

    —

    —

    —

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    cambic horizon

    0—20

    20—110

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 16 centimeters (0.0 to 6.3 inches); dark grayish brown (10YR 4/2) silt loam; weak medium granular structure; very friable, slightly sticky, nonplastic; 30.0 fine roots throughout; fragments; moderately alkaline, pH 8.2, pH meter; clear smooth boundary. Lab sample # 02N01644
    Ap2—16 to 32 centimeters (6.3 to 12.6 inches); grayish brown (10YR 5/2) silt loam; weak fine subangular blocky structure; very friable, slightly sticky, nonplastic; 20.0 fine roots throughout; 2.0 fine high-continuity tubular pores; 5 percent faint organic stains throughout; 15 percent fine distinct irregular dark yellowish brown (10YR 3/4), moist, and dark yellowish brown (10YR 4/4), moist, masses of oxidized iron on faces of peds; fragments; strongly alkaline, pH 8.5, pH meter; abrupt smooth boundary. Lab sample # 02N01645
    C1—32 to 49 centimeters (12.6 to 19.3 inches); grayish brown (10YR 5/2) and brown (10YR 5/3) stratified stratified silt loam; weak fine platy structure; very friable, slightly sticky, nonplastic; 15.0 fine roots throughout; 2.0 fine high-continuity tubular pores; 2 percent fine prominent dendritic brown (7.5YR 4/4) masses of oxidized iron lining pores and 2 percent medium distinct irregular dark gray (2.5Y 4/1) iron depletions throughout and 8 percent fine distinct irregular dark yellowish brown (10YR 4/4) masses of oxidized iron throughout; 1 percent fine worm casts lining pores; fragments; moderately alkaline, pH 8.3, pH meter; abrupt smooth boundary. Lab sample # 02N01646
    C2—49 to 70 centimeters (19.3 to 27.6 inches); brown (10YR 5/3) silt loam; weak fine platy structure; very friable, slightly sticky, nonplastic; 4.0 fine roots throughout; 0.9 medium high-continuity tubular and 2.0 fine high-continuity tubular pores; 5 percent fine distinct dendritic brown (7.5YR 4/4), moist, masses of oxidized iron lining pores and 15 percent fine and medium faint platy light brownish gray (10YR 6/2) iron depletions along lamina or strata surfaces; fragments; moderately alkaline, pH 8.3, pH meter; abrupt wavy boundary. Lab sample # 02N01647
    C3—70 to 85 centimeters (27.6 to 33.5 inches); grayish brown (10YR 5/2) silt loam; structureless massive; very friable, slightly sticky, nonplastic; 4.0 fine roots throughout; 0.9 medium high-continuity tubular and 2.0 fine high-continuity tubular pores; 2 percent fine distinct dendritic iron depletions on surfaces along root channels and 5 percent medium distinct irregular yellowish red (5YR 4/6), moist, masses of oxidized iron lining pores and 20 percent fine prominent cylindrical strong brown (7.5YR 4/6), moist, masses of oxidized iron lining pores; fragments; moderately alkaline, pH 8.2, pH meter; abrupt smooth boundary. Lab sample # 02N01648
    C4—85 to 100 centimeters (33.5 to 39.4 inches); dark yellowish brown (10YR 4/4) silt loam; weak fine subangular blocky structure; very friable, slightly sticky, nonplastic; 4.0 fine roots throughout; 0.9 medium high-continuity tubular and 0.9 fine high-continuity tubular pores; 5 percent fine distinct cylindrical strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout and 15 percent fine and medium distinct dendritic gray (10YR 5/1), moist, iron depletions lining pores; fragments; moderately alkaline, pH 8.2, pH meter; clear smooth boundary. Lab sample # 02N01649
    Cg1—100 to 114 centimeters (39.4 to 44.9 inches); grayish brown (10YR 5/2) silt loam; structureless massive; very friable, slightly sticky, nonplastic; 0.9 fine roots throughout; 2.0 fine high-continuity tubular pores; 3 percent fine and medium prominent cylindrical strong brown (7.5YR 4/6), moist, masses of oxidized iron lining pores and 15 percent fine and medium prominent cylindrical strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores; fragments; moderately alkaline, pH 8.2, pH meter; clear smooth boundary. Lab sample # 02N01650
    Cg2—114 to 138 centimeters (44.9 to 54.3 inches); dark greenish gray (5GY 4/1) silt loam; structureless massive; very friable, slightly sticky, nonplastic; 0.9 very fine roots throughout; 0.9 very fine high-continuity tubular pores; 3 percent fine and medium prominent irregular brown (7.5YR 4/4), moist, masses of oxidized iron lining pores and 5 percent fine prominent irregular yellowish brown (10YR 5/4), moist, masses of oxidized iron throughout; fragments; moderately alkaline, pH 8.1, pH meter; diffuse wavy boundary. Lab sample # 02N01651
    Cg3—138 to 190 centimeters (54.3 to 74.8 inches); dark greenish gray (5GY 4/1) silt loam; structureless massive; very friable, slightly sticky, nonplastic; 10 percent faint organic stains throughout; 2 percent fine and medium prominent irregular dark yellowish brown (10YR 4/4), moist, masses of oxidized iron throughout and 3 percent fine prominent cylindrical reddish brown (5YR 4/4) masses of oxidized iron lining pores; 1 percent by volume nonflat 50-125-200 millimeter wood fragments; moderately alkaline, pH 8.0, pH meter. Lab sample # 02N01652