IDENTIFIERS

  • Current Taxon Name (Soil Name): Matanzas
  • OSD
  • Series Extent
  • User Site ID: S1961PR005001
  • User Pedon ID: S1961PR005001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0590
  • NCSS Pedon Lab Data NASIS Record ID - 33668
  • Print Date: 4/22/2025

    • LOCATION

  • Location Description: Noreste soil Conservation District, Puerto Rico. Road bank on south side of Highway 2, 50 steps east of kilometer marker 125.0.
  • Country: US—United States
  • State: Puerto Rico
  • MLRA: 272—Humid Coastal Plains
  • Regional Office: SE—Southeast
  • Non-MLRA Soil Survey Area: PR684—Mayaguez Area, Puerto Rico Western Part

    • PEDON

  • Describers Name: R. B. Grossman, W. E. McKinzie, and G. D. Smith
  • Current Taxonomic Class: Clayey, kaolinitic, isohyperthermic Lithic Eutrudox
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: 3-MAZ Copied
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Matanzas (flagged as OSD)
  • PSC - 25 to 100 cm.
  • Classificaton Date - 5/24/2021
  • Classifier - Samuel Rios
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Matanzas
  • Classificaton Date - 3/15/1961
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey residuum weathered from limestone
  • Landscape: coastal plain
  • Landform: karstic marine terrace, karst valley
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Bedrock: very strongly coherent limestone, unspecified at 99cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/15/1961 (actual site observation date)
  • Data Collector: R. B. Grossman, W. E. McKinzie, and G. D. Smith
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • 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

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    Ap—0 to 36 centimeters (0.0 to 14.2 inches); dark reddish brown (2.5YR 3/4) clay; moderate fine subangular blocky structure; firm; 3.0 roots; 30 percent pressure faces; fragments; abrupt boundary. Lab sample # 40A04311. fails abruptly; The terms are used to describe the rate of failure of natural fabric: fails abruptly and fails semiplastically. To fail abruptly means that no plasticity is observed prior to failure. Stress builds up as the piece of soil is squeezed and dissipates quickly as the piece of soil breaks apart into numerous fragments or peds due to failure along natural planes of weakness. In semiplastic failure, deformation is readily observed prior to rupture.
    Bo1—36 to 69 centimeters (14.2 to 27.2 inches); dusky red (10R 3/4) clay; weak medium subangular blocky parts to moderate very fine and fine granular structure; friable, slightly sticky, moderately plastic; 3.0 roots; 21.0 medium pores; 10 percent pressure faces; fragments. Lab sample # 40A04312
    Bo2—69 to 99 centimeters (27.2 to 39.0 inches); dark red (2.5YR 3/6) clay; weak coarse subangular blocky parts to moderate very fine granular structure; friable, slightly sticky; 1.0 roots; clay films; fragments; abrupt boundary. Lab sample # 40A04313. fails abruptly; clay films very scarce if present at all.
    R—99 to 203 centimeters (39.0 to 79.9 inches); bedrock; fragments. Hard limestone bedrock ranged from 82 to 175 cm in depth.