IDENTIFIERS

  • Current Taxon Name (Soil Name): Amelia
  • OSD
  • Series Extent
  • User Site ID: S1957PR079007
  • User Pedon ID: S1957PR079007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0566
  • NCSS Pedon Lab Data NASIS Record ID - 33094
  • Print Date: 11/23/2024

    • 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: 18.0083332
  • Std. Longitude: -67.0588913
  • Datum: WGS84
  • Location Description: 1/2 mile west of Highway No. 116 along Highway No. 305 to Mayaguez. 100 yards west of dairy shed and 100 feet south of Highway No. 305. Photo GS-LR-4-30.
  • State: Puerto Rico
  • Non-MLRA Soil Survey Area: PR687—Lajas Valley Area, Puerto Rico

    • PEDON

  • Describers Name: C. J. Koch.
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Sampled As Information:
  • Soil Name - Amelia
  • PSC - 38 to 60 cm.
  • Classificaton Date - 9/10/1957
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Hill Slope Profile: footslope
  • Slope Shape Down: linear
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/10/1957 (actual site observation date)
  • Air Photo ID: GSLR-4-30
  • 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
    • 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

    3

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    686

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    A1—0 to 18 centimeters (0.0 to 7.1 inches); dark brown (7.5YR 3/2) clay loam; weak medium granular structure; hard when dry, friable, nonsticky, nonplastic; 21.0 fine roots; fragments; very strongly acid, pH 4.8, unspecified; clear smooth boundary. Lab sample # 40A04151. Few fine angular volcanic fragments.
    B1—18 to 38 centimeters (7.1 to 15.0 inches); dark yellowish brown (10YR 3/4) gravelly sandy clay loam; weak medium granular structure; very hard, nonsticky, nonplastic; 21.0 fine roots; clay films; 3 percent fine spherical iron concretions and 21 percent black (10YR 2/1) dark concretions; fragments; moderately acid, pH 5.8, unspecified; clear irregular boundary. Lab sample # 40A04152. Few fine angular volcanic fragments; iron concretions could be iron-impregnated volcanic fragments.; patchy - phpvsfiid 187153; patchy - phpvsfiid 187153
    B2T—38 to 61 centimeters (15.0 to 24.0 inches); dark yellowish brown (10YR 4/4) and dark yellowish brown (10YR 3/4) gravelly clay; massive; very hard, moderately sticky, moderately plastic; 3 percent black (10YR 2/1) dark concretions and 3 percent fine iron concretions; fragments; slightly acid, pH 6.3, unspecified; gradual boundary. Lab sample # 40A04153. Many angular volcanic fragments (50 to 75 percent of soil mass); iron concretions could be iron-impregnated volcanic fragments.
    C1—61 to 76 centimeters (24.0 to 29.9 inches); dark yellowish brown (10YR 4/4) and dark yellowish brown (10YR 3/4) gravelly clay; massive; extremely hard, moderately sticky, moderately plastic; 3 percent black (10YR 2/1) dark concretions and 3 percent fine iron concretions; fragments; slightly alkaline, pH 7.6, unspecified. Lab sample # 40A04154. Has more than 75 percent of the soil mass made up of angular volcanic fragments. Several large indurated plinthite boulders were found in the B2t and C1 horizon, which are presumed to be of colluvial origin and not genetically related to this profile.