IDENTIFIERS

  • Current Taxon Name (Soil Name): Yunque
  • OSD
  • Series Extent
  • User Site ID: S1986PR119011
  • User Pedon ID: 86PR119011
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 86P0304
  • NCSS Pedon Lab Data NASIS Record ID - 58109
  • Print Date: 2/17/2025

    • 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: 18.3130550
  • Std. Longitude: -65.8236084
  • Datum: WGS84
  • Location Description: Puerto Rico Caribbean National Forest. 100 feet SW of bridge on HWY 911 over Rio Spiritu de Santo.
  • State: Puerto Rico
  • County: PR119—Rio Grande
  • MLRA: 270—Humid Mountains and Valleys
  • Non-MLRA Soil Survey Area: PR700—El Yunque National Forest, Puerto Rico

    • 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 #: 11
  • Sampled As Information:
  • Soil Name - Yunque
  • Taxonomic Class - Clayey, mixed Typic Tropohumults
  • PSC - 5 to 55 cm.
  • Classificaton Date - 2/1/1986
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountains or deeply dissected plateaus
  • Landform: hillside or mountainside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: lower third
  • Slope Shape Down: convex
  • Runoff: high
  • Drainage Class: moderately well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/1/1986 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    umbric epipedon

    argillic horizon

    0—5

    5—102

    —-

    —-
    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

    50

    —

    —

    535

    —

    90

    200

    —

    —

    —

    —

    —

    20

    —

    —

    —

    —

    —

    —

    —
    1A—0 to 5 centimeters (0.0 to 2.0 inches); dark brown (10YR 3/3) interior clay; moderate fine granular structure; friable; 5.5 fine roots throughout; fragments; clear smooth boundary. Lab sample # 86P01801; moist when described;. many fine roots throughout
    1Bt1—5 to 26 centimeters (2.0 to 10.2 inches); yellowish brown (10YR 5/6) interior clay; 1 percent pale brown (10YR 6/3) fine distinct and 11 percent yellowish red (5YR 4/6) fine distinct mottles; moderate fine subangular blocky, and moderate medium subangular blocky structure; firm, very sticky, very plastic; 0.5 medium roots throughout and 2.5 fine roots throughout; 55 percent distinct , moist, coats on all faces of peds; fragments; clear smooth boundary. Lab sample # 86P01802; moist when described;. many coats surface features on vertical and horizontal faces of peds; common fine roots throughout; few medium roots throughout; common fine distinct 5YR46 mottles; few fine distinct 10YR63 mottles; continuous - phpvsfiid 220213; continuous - phpvsfiid 220213
    1Bt2—26 to 58 centimeters (10.2 to 22.8 inches); yellowish brown (10YR 5/8) interior clay; 11 percent pale brown (10YR 6/3) medium distinct mottles; moderate coarse subangular blocky structure; firm, very sticky, very plastic; 0.5 medium roots throughout and 2.5 fine roots throughout; 55 percent distinct , moist, coats on all faces of peds; fragments; clear smooth boundary. Lab sample # 86P01803; moist when described;. many coats surface features on vertical and horizontal faces of peds; common fine roots throughout; few medium roots throughout; common medium distinct 10YR63 mottles; continuous - phpvsfiid 220214; continuous - phpvsfiid 220214
    1Bt3—58 to 102 centimeters (22.8 to 40.2 inches); yellowish brown (10YR 5/8) interior clay; 1 percent red (2.5YR 4/8) fine distinct and 11 percent pale brown (10YR 6/3) medium distinct mottles; moderate coarse subangular blocky structure; firm, very sticky, very plastic; 2.5 fine roots throughout; 55 percent distinct , moist, coats on all faces of peds; fragments; clear wavy boundary. Lab sample # 86P01804; moist when described;. many coats surface features on vertical and horizontal faces of peds; common fine roots throughout; common medium distinct 10YR63 mottles; few fine distinct 2.5YR48 mottles; continuous - phpvsfiid 220215; continuous - phpvsfiid 220215
    1Bw1—102 to 130 centimeters (40.2 to 51.2 inches); red (10R 4/8) interior clay; 11 percent pale brown (10YR 6/3) medium distinct and 30 percent yellowish brown (10YR 5/8) medium distinct mottles; weak very coarse subangular blocky structure; firm, very sticky, very plastic; 0.5 fine roots throughout; 15 percent faint , moist, coats on vertical faces of peds; fragments; gradual boundary. Lab sample # 86P01805; moist when described;. few coats surface features on vertical faces of peds; few fine roots throughout; many medium distinct 10YR58 mottles; common medium distinct 10YR63 mottles; discontinuous - phpvsfiid 220216; discontinuous - phpvsfiid 220216
    1Bw2—130 to 152 centimeters (51.2 to 59.8 inches); red (10R 4/8) interior clay; 1 percent pale brown (10YR 6/3) coarse distinct and 30 percent yellowish brown (10YR 5/6) medium distinct mottles; weak very coarse subangular blocky structure; firm, moderately sticky, moderately plastic; fragments; abrupt wavy boundary. Lab sample # 86P01806. many medium distinct 10YR56 mottles; few coarse distinct 10YR63 mottles
    1Cr—152 to 162 centimeters (59.8 to 63.8 inches); weathered bedrock; fragments. Lab sample # 86P01807