IDENTIFIERS

  • Current Taxon Name (Soil Name): Ruston
  • OSD
  • Series Extent
  • User Site ID: S1945LA111001
  • User Pedon ID: S1945LA111001
  • Vegetation Plot ID: S1945LA111001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3993
  • NCSS Pedon Lab Data NASIS Record ID - 39635
  • Print Date: 6/3/2024

    • 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: 32.6694450
  • Std. Longitude: -92.4075012
  • Datum: WGS84
  • Township: 19N
  • Range: 1E
  • Section: 6
  • Location Description: 2.9 miles N of Downsville. old field W of gravel road immediately N and across road from small wooden church.
  • State: Louisiana
  • County: LA111—Union
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: LA111—Union Parish, Louisiana

    • PEDON

  • Describers Name: L.T. Alexander, I.L. Martin, A.E. Shearin, R.W. Simonson, M.E. Sturgis, and E.H. Templin
  • Current Taxonomic Class: Coarse-loamy, siliceous, semiactive, thermic Typic Paleudalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Ruston
  • PSC - 30 to 69 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - UNNAMED
  • Classificaton Date - 6/23/1945
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Geomorphic Component Hills: interfluve
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/23/1945 (actual site observation date)
  • Surface Cover Properties:
  • 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

    AMBRO

    CYNOD

    LESPE

    LEVU

    Ambrosia

    Cynodon

    Lespedeza

    Leucanthemum vulgare

    ragweed

    Bermudagrass

    lespedeza

    oxeye daisy

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    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

    5

    —

    —

    —

    —

    0

    1270

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    18

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 5/3) crushed, light gray (10YR 7/2), dry; fine sandy loam; weak fine granular structure; loose; fragments; diffuse boundary. Lab sample # 40A30588. pinholes and wormholes are common.
    A2—15 to 30 centimeters (5.9 to 11.8 inches); yellowish brown (10YR 5/4) and strong brown (7.5YR 5/6), very pale brown (10YR 7/3) crushed, dry; fine sandy loam; weak fine granular structure; loose; fragments; diffuse boundary. Lab sample # 40A30589. pinholes are numerous and wormholes are common in the horizon; the proportion of brown is higher in the lower part of the horizon.
    B1t—30 to 41 centimeters (11.8 to 16.1 inches); red (2.5YR 4/6) and strong brown (7.5YR 5/6), reddish yellow (7.5YR 6/6) crushed and light gray (10YR 7/2) crushed and reddish yellow (7.5YR 7/6) crushed, dry; sandy clay loam; medium subangular blocky parts to weak medium granular structure; very friable; fragments; diffuse boundary. Lab sample # 40A30590. pinholes are common and wormholes are few in this horizon; the light brown variegations are few in the lower parts of the layer.
    B2t—41 to 69 centimeters (16.1 to 27.2 inches); red (2.5YR 4/8), yellowish red (5YR 5/6) and reddish yellow (5YR 6/8) crushed, dry; sandy clay loam; weak medium subangular blocky, and weak medium granular structure; friable, slightly plastic; fragments. Lab sample # 40A30591. few pinholes and wormholes.
    B&A—69 to 91 centimeters (27.2 to 35.8 inches); red (2.5YR 4/8) and red (2.5YR 5/8) sandy loam, sandy clay loam; weak coarse subangular blocky structure; friable; fragments. Lab sample # 40A30592. few pinholes and wormholes; light yellowish brown to brownish yellow (10YR 6/4 to 6/6) spots and pockets, both circular and elliptical in cross section are common in the horizon; these have diameters or long axes ranging from 15-30 mm.
    A&B—91 to 132 centimeters (35.8 to 52.0 inches); yellowish red (5YR 5/8), reddish yellow (7.5YR 6/6) and very pale brown (10YR 8/4), dry; sandy loam; massive; friable; fragments. Lab sample # 40A30593. Simonson considers horizon a faint brittle pan; few pinholes in horizon; spots of yellowish brown (10YR 5/6) are numerous, medium to coarse in size, and of medium contrast; the proportion of yellowish brown increases with depth in the horizon and exceeds that of reddish yellow in the lower part.
    B't—132 to 160 centimeters (52.0 to 63.0 inches); dark red (10R 3/6) and dark red (2.5YR 3/6) and brownish yellow (10YR 6/6) and reddish yellow (7.5YR 6/6) sandy clay loam; weak medium subangular blocky structure; friable, slightly plastic; fragments. Lab sample # 40A30594. few pinholes present; pattern of marbling is intermediate in size and of medium contrast.