IDENTIFIERS

  • Current Taxon Name (Soil Name): Yunque
  • OSD
  • Series Extent
  • User Site ID: 11PR700009
  • User Pedon ID: 11PR700009
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 87P0303
  • NCSS Pedon Lab Data NASIS Record ID - 59598
  • 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: 18.3122222
  • Std. Longitude: -65.8150000
  • Datum: WGS84
  • Location Description: Approximately 4.37 miles southeast from the intersection of PR Hwy. 3 and PR Hwy. 186; 1.15 miles southeast from the intersection of PR Hwy. 186 and forest road #12; 0.47 mile east from the intersection of forest road #12 and abandoned forest road #22 on fotrestland.
  • Map Unit: YuF—Yunque-Moteado complex, 20 to 65 percent slopes
  • 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
  • 7.5 Minute USGS Quad: TPR0022—El Yunque, Puerto Rico

    • PEDON

  • Describers Name: Samuel Rios/Jorge L. Lugo
  • Current Taxonomic Class: Very-fine, kaolinitic, isothermic Plinthaquic Haploperox
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Yunque (flagged as OSD)
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/9/2012
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - perudic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Yunque
  • Classificaton Date - 12/17/2010
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from volcanic sandstone
  • Landscape: mountain range
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Geomorphic Component Mountains: mountaintop
  • Hill Slope Profile: summit
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Pattern: dendritic
  • Runoff: high
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Wet Soil Moisture Duration: 365
  • Bedrock: strong weathered sandstone, volcanic
  • Geology: Volcanic Sandstone And Volcaniclastic Breccia And Mudstone member of the Barrazas Formation formation in the Kba group.
  • Surface Fragments: 20.00 percent subangular very strongly coherent cemented 250- to 600-millimeter volcanic, unspecified, 10.00 percent subangular very strongly coherent cemented 600- to 3000-millimeter volcanic, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/17/2010 (actual site observation date)
  • Plant Association Name: Palo Colorao Forest
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - tropical
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    oxic horizon

    plinthite

    12—80

    72—80

    —-

    —-
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    12/17/2010

    50

    —

    21
    Pedon Horizon Bulk Density
    Horizon Depth to Top Depth to Bottom Method Data Collector Field Moist Volume Field Moist Sample Wt. Air Dry Sample Wt. Field Moist Co. Fragment Wt. Air Dry Fragment Wt. Fragment Density Coarse Fragment Volume Air Dry Subsample Wt. Oven Dry Subsample Wt. Grav Soil Moist % Whole Soil Grav Soil Moist % Fine Earth Bulk Density FM Fine Soil Bulk Density FM Whole Soill Bulk Density OD fINE Earth Bulk Density OD Fine Earth Bulk Density Satiated
    cm cm3 g g/cm3 cm3 g % g/cm3

    A

    Bto1

    Bto2

    Btv

    BC

    C

    3

    12

    38

    72

    80

    124

    12

    38

    72

    80

    124

    150

    scoop

    scoop

    scoop

    scoop

    scoop

    scoop

    NSSL

    NSSL

    NSSL

    NSSL

    NSSL

    NSSL

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    1.22

    1.3

    1.27

    1.41

    1.27

    1.34

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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

    32

    —

    —

    680

    —

    23

    4345

    —

    365

    18.6

    21.3

    15.8

    20.5

    20.6

    18.3

    —

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    666992

    Pico del Este, Puerto Rico

    Weather (NOAA)
    Oei—0 to 3 centimeters (0.0 to 1.2 inches); black (10YR 2/1) broken face stony mucky peat; friable, nonsticky, nonplastic; moderately slow permeability; low excavation difficulty; many very fine to coarse roots throughout; 10 percent by volume subangular very strongly coherent cemented 600-?-3000 millimeter andesite fragments and 20 percent by volume subangular very strongly coherent cemented 250-?-600 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, hellige-truog; abrupt smooth boundary.; wet when described;
    A—3 to 12 centimeters (1.2 to 4.7 inches); dark yellowish brown (10YR 4/6) broken face clay; 3 percent sand; 22 percent silt; 75 percent clay; weak fine subangular blocky structure; firm, moderately sticky, very plastic; very slow permeability; low excavation difficulty; many (10.0) medium roots throughout and many (10.0) fine roots throughout; common (5.0) fine interstitial and common (5.0) fine tubular pores; 15 percent coarse prominent cylindrical weakly coherent cemented worm casts with sharp boundaries throughout; 5 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.5, pH meter; clear smooth boundary.; wet when described;
    Bto1—12 to 38 centimeters (4.7 to 15.0 inches); yellowish brown (10YR 5/8) broken face clay; 3 percent sand; 22 percent silt; 76 percent clay; weak medium subangular blocky, and weak coarse subangular blocky structure; firm, moderately sticky, very plastic; very slow permeability; low excavation difficulty; common (3.0) medium roots throughout and common (3.0) fine roots throughout; common (5.0) fine interstitial and common (5.0) fine tubular pores; 5 percent faint clay films on all faces of peds; 2 percent fine faint noncoherent cemented light reddish brown (2.5YR 6/3), moist, and strong brown (7.5YR 5/8), moist, masses of oxidized iron on faces of peds and 2 percent fine distinct noncoherent cemented red (2.5YR 4/6), moist, masses of oxidized iron on surfaces along root channels and 2 percent fine distinct noncoherent cemented black (10YR 2/1), moist, iron-manganese masses infused into matrix along faces of peds; 15 percent coarse prominent cylindrical weakly coherent cemented worm casts with sharp boundaries throughout; 5 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.5, pH meter; clear smooth boundary.; wet when described;. discontinuous - phpvsfiid 995276; discontinuous - phpvsfiid 995276
    Bto2—38 to 72 centimeters (15.0 to 28.3 inches); yellowish brown (10YR 5/8) broken face clay; 3 percent sand; 34 percent silt; 63 percent clay; weak medium subangular blocky, and weak coarse subangular blocky structure; firm, moderately sticky, very plastic; very slow permeability; low excavation difficulty; few (1.0) medium tubular and few (1.0) medium interstitial and few (1.0) fine tubular and few (1.0) fine interstitial pores; 25 percent distinct clay films on all faces of peds; 2 percent fine prominent iron depletions on faces of peds and 2 percent fine prominent noncoherent cemented strong brown (7.5YR 4/6), moist, masses of oxidized iron on faces of peds and 2 percent fine distinct noncoherent cemented yellow (10YR 7/6), moist, masses of oxidized iron on faces of peds and 2 percent fine distinct noncoherent cemented iron-manganese masses infused into matrix along faces of peds; 15 percent coarse prominent cylindrical weakly coherent cemented worm casts with sharp boundaries throughout; 5 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.7, pH meter; abrupt smooth boundary.; wet when described;. continuous - phpvsfiid 995277; continuous - phpvsfiid 995277
    Btv—72 to 80 centimeters (28.3 to 31.5 inches); strong brown (7.5YR 5/8) broken face silty clay; 14 percent sand; 48 percent silt; 44 percent clay; weak medium platy structure; firm, moderately sticky, moderately plastic; slow permeability; low excavation difficulty; few (1.0) medium tubular and few (1.0) medium interstitial and few (1.0) fine tubular and few (1.0) fine interstitial pores; 2 percent fine distinct black (10YR 2/1), moist, iron-manganese masses infused into matrix along faces of peds and 2 percent fine prominent light gray (10YR 7/1), moist, iron depletions on faces of peds and 2 percent fine prominent weakly coherent cemented yellowish red (5YR 5/8), moist, plinthite nodules throughout and 15 percent fine faint noncoherent cemented red (2.5YR 4/8), moist, masses of oxidized iron on faces of peds; 5 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, pH meter; abrupt smooth boundary.; wet when described;
    BC—80 to 124 centimeters (31.5 to 48.8 inches); strong brown (7.5YR 5/8) broken face silty clay loam; 13 percent sand; 50 percent silt; 37 percent clay; friable, moderately sticky, moderately plastic; moderately slow permeability; low excavation difficulty; 10 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.9, pH meter; gradual wavy boundary.; very moist when described;
    C—124 to 150 centimeters (48.8 to 59.1 inches); yellowish red (5YR 5/8) broken face and strong brown (7.5YR 5/8) broken face and very pale brown (10YR 8/2) broken face and light gray (10YR 7/1) broken face and black (10YR 2/1) broken face and red (2.5YR 4/8) broken face silty clay loam; 15 percent sand; 51 percent silt; 34 percent clay; friable, moderately sticky, moderately plastic; moderately slow permeability; low excavation difficulty; 10 percent by volume angular very strongly coherent cemented 2-38-76 millimeter andesite fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, pH meter.; very moist when described;