IDENTIFIERS

  • Current Taxon Name (Soil Name): RIO LAJAS
  • OSD
  • Series Extent
  • User Site ID: S1973PR001005
  • User Pedon ID: S1973PR001005
  • Vegetation Plot ID: S1973PR001005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A1265
  • NCSS Pedon Lab Data NASIS Record ID - 34874
  • Print Date: 12/4/2024

    • LOCATION

  • Location Description: Atlantico SCD, Puerto Rico, 0.5 miles west of the municipal cemetery, municipality of Camuy, Arecibo Soil Survey Area.
  • State: Puerto Rico

    • PEDON

  • Describers Name: Luis H. Rivera
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Sampled As Information:
  • Soil Name - RIO LAJAS
  • PSC - 66 to 100 cm.
  • Classificaton Date - 11/8/1973
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: valley
  • Landform: hill
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/8/1973 (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

    AGGI2

    SPORO

    Agrostis gigantea

    Sporobolus

    redtop

    dropseed

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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

    3

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    25

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    B25T—0 to 0 centimeters (0.0 to 0.0 inches); dark red (2.5YR 3/6) and red (2.5YR 4/6) sandy clay; weak medium subangular blocky structure; hard when dry, friable, slightly sticky, slightly plastic; fragments; strong effervescence. Lab sample # 40A09634
    AP—0 to 28 centimeters (0.0 to 11.0 inches); dark reddish brown (5YR 3/3) sand; single grain; loose, nonsticky, nonplastic; 21.0 fine roots; fragments; slightly acid, pH 6.3, unspecified; clear smooth boundary. Lab sample # 40A09627
    A12—28 to 43 centimeters (11.0 to 16.9 inches); dark reddish brown (5YR 3/4) sand; single grain; loose, nonsticky, nonplastic; 3.0 fine roots; fragments; slightly acid, pH 6.3, unspecified; gradual smooth boundary. Lab sample # 40A09628
    A13—43 to 66 centimeters (16.9 to 26.0 inches); dark reddish brown (5YR 3/4) sand; single grain; loose, nonsticky, nonplastic; 3.0 fine roots; fragments; slightly acid, pH 6.3, unspecified; clear wavy boundary. Lab sample # 40A09629. This horizon varies from 4 to 14 inch in thickness and is thickest where upper boundary of B2t is concave. In these places it has lamellae about 2-6 cm. apart and 5 mm thick. Lamellae are wavy and have same color and texture of B2t below.
    B21T—66 to 92 centimeters (26.0 to 36.2 inches); dark reddish brown (2.5YR 3/4) sandy loam; single grain; hard when dry, friable, nonsticky, nonplastic; 0.5 fine roots; fragments; neutral, pH 7.0, unspecified; gradual wavy boundary. Lab sample # 40A09630. This horizon is continuous through 80 percent of pedon, ranging from 0 to 11 inches thick.
    B22T—92 to 124 centimeters (36.2 to 48.8 inches); dark red (2.5YR 3/6) sandy loam; massive; hard when dry, friable, slightly sticky, nonplastic; 0.5 fine roots; fragments; neutral, pH 7.0, unspecified; gradual wavy boundary. Lab sample # 40A09631. This horizon is 8 to 20 inches thick. Where the upper boundary is in contact with the A13 horizon, the boundary is abrupt and wavy. There are isolated pockets of material similar to the B21t within the B22t, B23t, and B24t. Dimensions of the pockets range from 5x8 inches to 20x8 inches. They occupy about 10 percent of the 3 horizon and might be a result of disturbances.
    B23T—124 to 163 centimeters (48.8 to 64.2 inches); dark red (2.5YR 3/6) and red (2.5YR 4/6) sandy loam; massive; hard when dry, friable, slightly sticky, nonplastic; 0.1 fine roots; fragments; neutral, pH 7.0, unspecified; gradual wavy boundary. Lab sample # 40A09632
    B24T—163 to 195 centimeters (64.2 to 76.8 inches); dark red (2.5YR 3/6) and red (2.5YR 4/6) sandy clay; weak medium subangular blocky structure; hard when dry, friable, slightly sticky, slightly plastic; fragments; strong effervescence. Lab sample # 40A09633