IDENTIFIERS

  • Current Taxon Name (Soil Name): Sosa
  • OSD
  • Series Extent
  • User Site ID: D99PR023004
  • User Pedon ID: D99PR023004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 81P0317
  • NCSS Pedon Lab Data NASIS Record ID - 49161
  • Print Date: 4/28/2025

    • 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: 18.0263889
  • Std. Longitude: -67.1375000
  • Datum: WGS84
  • Location Description: Sosa fine sandy loam, in an area of Urban land-Sosa complex 5 to 12 percent slopes; approximately 0.25 mile south of Betances community from the intersection of P.R. Hwy. 101 and P.R. Hwy. 103; about 100 feet west of paved road on pastureland; Cabo Rojo Municipality. (USGS Puerto Real topographic quadrangle (1966); lat. 18 degrees 01 minute 35 seconds N., and long. 67 degrees 08 minutes 15 seconds W.)
  • Map Unit: SsD2—Sosa sandy loam, 5 to 12 percent slopes, erodedUsC—Urban land-Sosa complex, 5 to 12 percent slopes
  • Non-MLRA Soil Survey Area: PR687—Lajas Valley Area, Puerto RicoPR787—San German Area, Southwestern Puerto Rico

    • PEDON

  • Describers Name: Gilberto Acevedo; Luis H. Rivera
  • Current Taxonomic Class: Fine, kaolinitic, isohyperthermic Aridic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Sosa
  • PSC - 50 to 100 cm.
  • Classificaton Date - 2/27/2009
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Sosa
  • Classificaton Date - 1/20/1981
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey and loamy marine sediments
  • Landscape: coastal plain
  • Landform: marine terrace
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Pattern: dendritic
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Tertiary? member of the Quartz Sand Deposits formation in the Tqs group.
  • Surface Fragments: 3.00 percent 2- to 75-millimeter ironstone nodules,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/20/1981 (actual site observation date)
  • Air Photo ID: 5B
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    argillic horizon

    ochric epipedon

    —

    0—30

    —-

    13—30—48
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    1/20/1981

    1/20/1981

    1/20/1981

    1/20/1981

    1/20/1981

    100

    50

    20

    10

    5

    —

    —

    —

    —

    —

    28

    28

    28

    28

    28
    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

    8

    —

    —

    30

    —

    260

    1162

    —

    365

    25.1

    26.7

    23.3

    —

    —

    —

    —

    —

    665097

    Lajas Substation

    Weather (NOAA)
    Ap—0 to 12 centimeters (0.0 to 4.7 inches);, dark reddish brown (5YR 3/3) exterior, moist; fine sandy loam; 82 percent sand; 6 percent silt; 12 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 6.0 fine roots throughout; 3 percent by volume 2-50-75 millimeter ironstone nodules fragments; moderately acid, pH 5.7, pH meter; clear smooth boundary. Lab sample # 81P1629S; dry when described; observed in pit, large or quarry
    A—12 to 30 centimeters (4.7 to 11.8 inches);, dark reddish brown (5YR 3/3) exterior, moist; fine sandy loam; 77 percent sand; 7 percent silt; 16 percent clay; weak coarse subangular blocky structure; hard, friable, nonsticky, slightly plastic; moderately rapid permeability; 6.0 fine roots throughout; 14 percent by volume 2-50-75 millimeter ironstone nodules fragments; slightly acid, pH 6.3, pH meter; clear smooth boundary. Lab sample # 81P1630S; dry when described; observed in pit, large or quarry
    B/A—30 to 50 centimeters (11.8 to 19.7 inches);, 70 percent dark red (2.5YR 3/6) exterior and 30 percent dark reddish brown (5YR 3/3) exterior, moist; sandy clay; 51 percent sand; 5 percent silt; 43 percent clay; massive; hard, friable, slightly sticky, slightly plastic; slow permeability; 0.5 fine roots throughout; 25 percent faint clay films on all faces of peds; 12 percent by volume 2-50-75 millimeter ironstone nodules fragments; neutral, pH 6.6, pH meter; clear smooth boundary. Lab sample # 81P1631S; dry when described; observed in pit, large or quarry
    Bt1—50 to 84 centimeters (19.7 to 33.1 inches);, red (2.5YR 4/6) exterior, moist; sandy clay; 53 percent sand; 6 percent silt; 41 percent clay; moderate medium subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; slow permeability; 30 percent faint clay films on all faces of peds; 20 percent medium prominent irregular light gray (10YR 7/1), moist, masses of reduced iron with sharp boundaries in matrix surrounding redox depletions and 25 percent medium prominent irregular dark red (10R 3/6), moist, and strong brown (7.5YR 5/8), moist, masses of oxidized iron with sharp boundaries in matrix surrounding redox concentrations; 6 percent by volume 2-50-75 millimeter ironstone nodules fragments; neutral, pH 6.7, pH meter; gradual wavy boundary. Lab sample # 81P1632S; dry when described; observed in pit, large or quarry
    Bt2—84 to 160 centimeters (33.1 to 63.0 inches);, red (2.5YR 4/6) exterior, moist; sandy clay loam; 66 percent sand; 7 percent silt; 27 percent clay; weak medium subangular blocky structure; very hard, extremely firm, slightly sticky, slightly plastic; moderately slow permeability; 15 percent faint clay films on all faces of peds; 20 percent medium prominent irregular light gray (10YR 7/1), moist, masses of reduced iron with sharp boundaries in matrix surrounding redox depletions and 25 percent medium prominent irregular dark red (10R 3/6), moist, and strong brown (7.5YR 5/8), moist, masses of oxidized iron with sharp boundaries in matrix surrounding redox concentrations; 1 percent by volume 2-50-75 millimeter ironstone nodules fragments; neutral, pH 7.0, pH meter. Lab sample # 81P1633S, 81P1334S; dry when described; observed in pit, large or quarry