IDENTIFIERS

  • Current Taxon Name (Soil Name): Mabi
  • OSD
  • Series Extent
  • User Site ID: S1986PR063001
  • User Pedon ID: 86PR063001
  • Vegetation Plot ID: S1986PR063001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 86P0307
  • NCSS Pedon Lab Data NASIS Record ID - 58112
  • Print Date: 2/16/2025

    • 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: 18.2611103
  • Std. Longitude: -65.9916687
  • Datum: WGS84
  • Location Description: Puerto Rico on Gurabo Substation. About 1 mi W of Gurabo.
  • State: Puerto Rico
  • County: PR063—Gurabo
  • MLRA: 272—Humid Coastal Plains

    • PEDON

  • Describers Name: D. Williams G. Acevedo W. Lynn L. Huffaker
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Mabi
  • Taxonomic Class - Very-fine, montmorillonitic Aquic Chromuderts
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/1/1986
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountain valleys or canyons
  • Landform: terrace—stream or lake
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/1/1986 (actual site observation date)
  • Microrelief Elevation: 35
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    URMA3

    Urochloa maxima

    guineagrass

    —

    —

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

    mollic epipedon

    cambic horizon

    0—30

    30—220

    —-

    —-
    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

    —

    —

    48

    —

    0

    175

    —

    —

    —

    —

    —

    29

    —

    —

    —

    —

    —

    —

    —
    1A—0 to 30 centimeters (0.0 to 11.8 inches); dark brown (10YR 3/3) interior clay; 1 percent 5YR 4/8 (5YR 4/8) fine distinct mottles; weak medium subangular blocky, and weak fine granular structure; extremely firm*; 2.5 fine roots throughout; 2.5 fine discontinuous tubular pores; 5 percent by volume 2-39-75 millimeter igneous, unspecified fragments; slightly acid, pH 6.4, phenol red; clear wavy boundary. Lab sample # 86P01823. Top 10 cm free of mottles.; common fine roots throughout; few fine distinct 5YR48 mottles
    1A1—0 to 37 centimeters (0.0 to 14.6 inches); dark brown (10YR 3/3) interior clay; weak medium subangular blocky, and weak fine granular structure; extremely firm*; fragments; clear wavy boundary. Lab sample # 86P01829. Subsample in microlow.
    1Bw1—30 to 80 centimeters (11.8 to 31.5 inches); yellowish brown (10YR 5/8) interior clay; 30 percent light olive gray (5Y 6/2) medium distinct mottles; moderate coarse wedge, and moderate medium angular blocky structure; extremely firm*; 2.5 very fine roots throughout and 2.5 fine roots throughout; 0.5 very fine discontinuous tubular pores; 55 percent distinct yellowish brown (10YR 5/8), moist, slickensides (pedogenic); fragments; slightly acid, pH 6.4, phenol red; gradual boundary. Lab sample # 86P01824. Common dark splotches, polished and grooved slickensides tilted 45 to 75 deg.; many intersecting slickensides surface features; common fine roots throughout; common very fine roots throughout; many medium distinct 5Y62 mottles; continuous - phpvsfiid 220222; continuous - phpvsfiid 220222
    1A2—37 to 60 centimeters (14.6 to 23.6 inches); dark brown (10YR 3/3) interior clay; 30 percent 5YR 4/8 (5YR 4/8) fine distinct mottles; weak medium subangular blocky, and weak fine granular structure; extremely firm*; fragments. Lab sample # 86P01830. Subsample in microlow.; many fine distinct 5YR48 mottles
    1Bw2—80 to 110 centimeters (31.5 to 43.3 inches); yellowish brown (10YR 5/6) interior clay; 1 percent light olive gray (5Y 6/2) fine distinct mottles; moderate very coarse wedge, and moderate medium angular blocky structure; extremely firm*; 2.5 very fine roots throughout; 0.5 very fine discontinuous tubular pores; 55 percent distinct yellowish brown (10YR 5/6), moist, slickensides (pedogenic); 1 percent fine spherical iron-manganese concretions; fragments; neutral, pH 7.0, thymol-blue; gradual boundary. Lab sample # 86P01825. Polished and grooved slickensides tilted 45 to 75 deg.; few fine iron-manganese concretions concentrations; many intersecting slickensides surface features; common very fine roots throughout; few fine distinct 5Y62 mottles; continuous - phpvsfiid 220223; continuous - phpvsfiid 220223
    1Bw3—110 to 155 centimeters (43.3 to 61.0 inches); yellowish brown (10YR 5/6) interior clay; 1 percent light olive gray (5Y 6/2) fine distinct mottles; moderate very coarse wedge, and moderate medium angular blocky structure; extremely firm*; 0.5 very fine roots throughout; 0.5 very fine discontinuous tubular pores; 55 percent distinct yellowish brown (10YR 5/6), moist, slickensides (pedogenic); 1 percent fine spherical iron-manganese concretions; fragments; neutral, pH 7.0, thymol-blue; gradual boundary. Lab sample # 86P01826. Polished and grooved slickensides tilted 45 to 75 deg.; few fine iron-manganese concretions concentrations; many intersecting slickensides surface features; few very fine roots throughout; few fine distinct 5Y62 mottles; continuous - phpvsfiid 220224; continuous - phpvsfiid 220224
    1Bw1—155 to 190 centimeters (61.0 to 74.8 inches); strong brown (7.5YR 5/6) interior clay; 11 percent light gray (5Y 7/2) fine distinct mottles; moderate very coarse wedge, and moderate medium angular blocky structure; extremely firm*; 0.5 very fine roots throughout; 5.5 very fine discontinuous tubular pores; 55 percent prominent light olive gray (5Y 6/2), moist, slickensides (pedogenic); 1 percent fine spherical iron-manganese concretions; 11 percent medium irregular carbonate masses; fragments; neutral, pH 7.2, thymol-blue; gradual boundary. Lab sample # 86P01827. Few calcium carbonate conc.; few fine iron-manganese concretions concentrations; common medium soft masses of carbonate concentrations; many intersecting slickensides surface features; few very fine roots throughout; common fine distinct 5Y72 mottles; continuous - phpvsfiid 220225; continuous - phpvsfiid 220225
    1Bw5—190 to 220 centimeters (74.8 to 86.6 inches); yellowish red (5YR 5/8) interior clay; 11 percent light gray (5Y 7/2) fine distinct mottles; moderate very coarse wedge, and moderate medium angular blocky structure; extremely firm*; 0.5 very fine roots throughout; 55 percent prominent light olive gray (5Y 6/2), moist, slickensides (pedogenic); 11 percent medium spherical iron-manganese concretions; 11 percent medium irregular carbonate masses; fragments; slightly alkaline, pH 7.4, thymol-blue. Lab sample # 86P01828. common medium iron-manganese concretions concentrations; common medium soft masses of carbonate concentrations; many intersecting slickensides surface features; few very fine roots throughout; common fine distinct 5Y72 mottles; continuous - phpvsfiid 220226; continuous - phpvsfiid 220226