IDENTIFIERS

  • Current Taxon Name (Soil Name): Rio Arriba
  • OSD
  • Series Extent
  • User Site ID: S1988PR069001
  • User Pedon ID: 88PR069001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 88P0365
  • NCSS Pedon Lab Data NASIS Record ID - 60483
  • Print Date: 12/12/2024

    • 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: 18.2116661
  • Std. Longitude: -65.8205566
  • Datum: WGS84
  • Location Description: Puerto Rico, Humacao Municipio, 225 feet W of row at km 7.7 Hwy 924 .5 mi S of Pena Pobre jct. 31 & 924 @ km 8.0.
  • State: Puerto Rico
  • County: PR069—Humacao
  • MLRA: 272—Humid Coastal Plains

    • PEDON

  • Describers Name: D. Williams and G. Acevedo
  • Current Taxonomic Class: Fine, mixed, subactive, isohyperthermic Vertic Paleudults
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Rio Arriba
  • Classificaton Date - 2/1/2022
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Rio Arriba
  • Taxonomic Class - Fine, mixed Vertic Paleudalfs
  • PSC - 28 to 78 cm.
  • Classificaton Date - 2/1/1988
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: coastal plain
  • Landform: terrace—stream or lake
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/1/1988 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    ochric epipedon

    argillic horizon

    0—28

    28—220

    —-

    —-
    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

    —

    —

    102

    —

    315

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 28 centimeters (0.0 to 11.0 inches); dark yellowish brown (10YR 4/4) interior clay loam; 33 percent clay; moderate fine granular structure; friable, moderately sticky, moderately plastic; 5.5 fine roots throughout; 11 percent fine spherical iron-manganese masses; fragments; extremely acid, pH 4.4, unspecified; clear smooth boundary. Lab sample # 88P01848. common fine soft masses of iron-manganese concentrations; many fine roots throughout
    1Bt1—28 to 61 centimeters (11.0 to 24.0 inches); strong brown (7.5YR 5/6) interior clay; 43 percent clay; 11 percent yellowish red (5YR 4/6) medium distinct mottles; moderate fine subangular blocky structure; firm, moderately sticky, moderately plastic; 2.5 fine roots throughout; 2.5 interstitial and tubular pores; 55 percent distinct strong brown (7.5YR 5/6), moist, clay films on all faces of peds; 11 percent fine spherical iron-manganese masses; fragments; very strongly acid, pH 4.6, unspecified; clear smooth boundary. Lab sample # 88P01849. Few charcoal fragments.; common fine soft masses of iron-manganese concentrations; many clay films surface features on vertical and horizontal faces of peds; common fine roots throughout; common medium distinct 5YR46 mottles; continuous - phpvsfiid 1923548; continuous - phpvsfiid 1923548
    1Bt2—61 to 80 centimeters (24.0 to 31.5 inches); strong brown (7.5YR 5/6) interior clay; 47 percent clay; 1 percent red (10R 4/6) medium distinct and 11 percent 2.5Y 4/6 (2.5Y 4/6) medium distinct mottles; moderate fine subangular blocky, and moderate medium subangular blocky structure; firm, moderately sticky, moderately plastic; 2.5 fine roots throughout; 0.5 medium interstitial and tubular and 2.5 fine interstitial and tubular pores; 55 percent distinct strong brown (7.5YR 5/6), moist, clay films on all faces of peds; 1 percent fine spherical iron concretions; fragments; very strongly acid, pH 5.0, unspecified; clear smooth boundary. Lab sample # 88P01850. few fine iron concretions concentrations; many clay films surface features on vertical and horizontal faces of peds; common fine roots throughout; common medium distinct 2.5Y46 mottles; few medium distinct 10R46 mottles; continuous - phpvsfiid 1923549; continuous - phpvsfiid 1923549
    1Bt3—80 to 107 centimeters (31.5 to 42.1 inches); strong brown (7.5YR 5/6) interior clay; 45 percent clay; 11 percent red (10R 4/6) coarse prominent and 11 percent yellowish red (5YR 4/6) medium distinct and 11 percent brownish yellow (10YR 6/6) medium distinct mottles; moderate medium subangular blocky structure; firm, moderately sticky, moderately plastic; 0.5 fine roots throughout; 0.5 fine void between rock fragments pores; 55 percent distinct , moist, clay films on all faces of peds; 1 percent fine spherical iron concretions and 11 percent fine spherical plinthite nodules; fragments; strongly acid, pH 5.2, unspecified; clear smooth boundary. Lab sample # 88P01851. Mottles in horizontal bads. Few (10YR 8/2) mottles along old root channels.; few fine iron concretions concentrations; common fine plinthite segregations concentrations; many clay films surface features on vertical and horizontal faces of peds; few fine roots throughout; common coarse prominent 10R46 mottles; common medium distinct 5YR46 mottles; common medium distinct 10YR66 mottles; continuous - phpvsfiid 1923550; continuous - phpvsfiid 1923550
    1Btv1—107 to 146 centimeters (42.1 to 57.5 inches); strong brown (7.5YR 5/6) interior clay; 45 percent clay; 11 percent dark yellowish brown (10YR 4/6) coarse prominent and 11 percent very pale brown (10YR 8/2) medium prominent mottles; moderate medium subangular blocky structure; firm, moderately sticky, moderately plastic; 0.5 fine roots throughout; 0.5 fine interstitial and tubular pores; 55 percent distinct , moist, clay films on all faces of peds; 11 percent fine spherical plinthite nodules; fragments; strongly acid, pH 5.4, unspecified; clear wavy boundary. Lab sample # 88P01852. White mottles tend to be horizontal.; common fine plinthite segregations concentrations; many clay films surface features on vertical and horizontal faces of peds; few fine roots throughout; common coarse prominent 10YR46 mottles; common medium prominent 10YR82 mottles; continuous - phpvsfiid 1923551; continuous - phpvsfiid 1923551
    1Btv2—146 to 173 centimeters (57.5 to 68.1 inches); strong brown (7.5YR 5/6) interior clay; 43 percent clay; 11 percent red (10R 4/6) coarse prominent and 11 percent very pale brown (10YR 8/2) coarse prominent mottles; weak coarse subangular blocky structure; firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 15 percent faint , moist, clay films on faces of peds; 11 percent fine spherical plinthite nodules; fragments; extremely acid, pH 4.0, cresol red; clear smooth boundary. Lab sample # 88P01853. common fine plinthite segregations concentrations; few clay films surface features on faces of peds; few very fine roots throughout; common coarse prominent 10R46 mottles; common coarse prominent 10YR82 mottles; discontinuous - phpvsfiid 1923552; discontinuous - phpvsfiid 1923552
    1Btv3—173 to 210 centimeters (68.1 to 82.7 inches); 2.5Y 4/6 (2.5Y 4/6) interior clay; 46 percent clay; 1 percent red (10R 4/6) coarse prominent and 1 percent very pale brown (10YR 8/2) coarse prominent mottles; weak coarse subangular blocky structure; firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 0.5 fine interstitial and tubular pores; 15 percent faint , moist, clay films on faces of peds; 11 percent fine spherical plinthite nodules and 11 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.6, cresol red; abrupt smooth boundary. Lab sample # 88P01854. Few reddish clay balls.; common fine plinthite segregations concentrations; common fine soft masses of iron-manganese concentrations; few clay films surface features on faces of peds; few very fine roots throughout; few coarse prominent 10R46 mottles; few coarse prominent 10YR82 mottles; discontinuous - phpvsfiid 1923553; discontinuous - phpvsfiid 1923553
    2Bg—210 to 220 centimeters (82.7 to 86.6 inches); light gray (10YR 7/1) interior clay; 50 percent clay; 11 percent weak red (10R 4/4) coarse prominent and 11 percent strong brown (7.5YR 5/6) coarse prominent mottles; moderate medium angular blocky structure; very firm, very sticky, very plastic; 0.5 fine interstitial and tubular pores; 37 percent , moist, pressure faces throughout; fragments; moderately acid, pH 5.6, cresol red. Lab sample # 88P01855. common pressure faces surface features throughout; common coarse prominent 10R44 mottles; common coarse prominent 7.5YR56 mottles; discontinuous - phpvsfiid 1923554; discontinuous - phpvsfiid 1923554