IDENTIFIERS

  • Current Taxon Name (Soil Name): Humatas
  • OSD
  • Series Extent
  • User Site ID: S1961PR011002
  • User Pedon ID: S1961PR011002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0570
  • NCSS Pedon Lab Data NASIS Record ID - 33098
  • Print Date: 12/4/2024

    • LOCATION

  • Location Description: Oeste Soil Conservation District, Mayaguez, Puerto Rico, on Highway 406, near kilometer marker 2.45, 200 meters on dirt road and 350 feet southwest of road. Photo No. GS-LR-3-140.
  • Map Unit: HmE2—Humatas clay, 20 to 40 percent slopes
  • Country: US—United States
  • State: Puerto Rico
  • County: PR011—Anasco
  • MLRA: 270—Humid Mountains and Valleys
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: SE-MAZ—Mayaguez, Puerto Rico
  • 7.5 Minute USGS Quad: TPR0036—Mayaguez, Puerto Rico

    • PEDON

  • Describers Name: W. E. McKinzie
  • Current Taxonomic Class: Very-fine, parasesquic, isohyperthermic Typic Haplohumults
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Alonso (flagged as OSD)
  • PSC - 10 to 60 cm.
  • Classificaton Date - 6/13/2013
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Humatas
  • Taxonomic Class - Very-fine, parasesquic, isohyperthermic Typic Haplohumults
  • Taxon Kind - series
  • Classificaton Date - 12/5/1961
  • Soil Taxonomic Edition - eleventh edition
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine and medium texture residuum weathered from volcanic rock
  • Landscape: upland
  • Geomorphic Component Hills: side slope
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/5/1961 (actual site observation date)
  • Air Photo ID: GSLR3-140
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    argillic horizon

    10—63

    —53—
    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

    27

    —

    —

    —

    —

    225

    1933

    —

    365

    25

    33

    19

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 10 centimeters (0.0 to 3.9 inches); brown (7.5YR 4/4) clay; 1 percent reddish brown (5YR 4/4) fine faint mottles; moderate fine granular structure; friable, slightly sticky, slightly plastic; many (21.0) fine roots throughout; fragments; very strongly acid, pH 5.0, unspecified; clear smooth boundary. Lab sample # 40A04168. Few fine charcoal fragments.
    Bt1—10 to 23 centimeters (3.9 to 9.1 inches); yellowish red (5YR 5/6) clay; 2 percent black (10YR 2/1) fine prominent mottles; moderate fine subangular blocky structure; friable, nonsticky, slightly plastic; many (21.0) fine roots throughout; few (0.5) fine pores; distinct clay films on all faces of peds; fragments; very strongly acid, pH 4.5, unspecified; clear smooth boundary. Lab sample # 40A04169. Few fine black particles; fails semiplastically.; patchy - phpvsfiid 1195275; patchy - phpvsfiid 1195275
    Bt2—23 to 38 centimeters (9.1 to 15.0 inches); red (2.5YR 5/8) clay; moderate fine and medium subangular blocky structure; friable, slightly sticky, slightly plastic; many (21.0) fine roots throughout; few (0.5) fine pores; distinct clay films on all faces of peds; fragments; very strongly acid, pH 4.5, unspecified; clear smooth boundary. Lab sample # 40A04170. Fails semiplastically.; patchy - phpvsfiid 1195273; patchy - phpvsfiid 1195273
    Bt3—38 to 63 centimeters (15.0 to 24.8 inches); red (2.5YR 5/6) clay; weak fine subangular blocky structure; friable, nonsticky, slightly plastic; 0.5 roots; few (0.5) fine pores; black stains in root channels and/or pores; fragments; very strongly acid, pH 4.5, unspecified; clear smooth boundary. Lab sample # 40A04171. Fails semiplastically.
    BC—63 to 81 centimeters (24.8 to 31.9 inches); red (2.5YR 5/6) clay; 3 percent yellow (10YR 8/6) fine faint mottles; weak fine and medium subangular blocky structure; very friable, nonsticky, slightly plastic; 0.5 roots; many (21.0) fine pores; fragments; very strongly acid, pH 4.5, unspecified; clear smooth boundary. Lab sample # 40A04172. Fails abruptly.
    C1—81 to 114 centimeters (31.9 to 44.9 inches); variegated red (2.5YR 4/6) and dark red (2.5YR 3/6) and very pale brown (10YR 7/4) and yellowish brown (10YR 5/8) Error; massive; very friable, nonsticky, slightly plastic; many (21.0) fine pores; fragments; very strongly acid, pH 4.5, unspecified; clear smooth boundary. Lab sample # 40A04173. Fails abruptly.
    C2—114 to 152 centimeters (44.9 to 59.8 inches); variegated red (2.5YR 4/6) and dark red (2.5YR 3/6) and very pale brown (10YR 7/4) and yellowish brown (10YR 5/8) silty clay; massive; very friable, nonsticky, slightly plastic; fragments; very strongly acid, pH 4.5, unspecified. Lab sample # 40A04174. Saprolite
    C3—183 to 244 centimeters (72.0 to 96.1 inches); variegated red (2.5YR 4/6) and dark red (2.5YR 3/6) and very pale brown (10YR 7/4) and yellowish brown (10YR 5/8) clay loam; massive; very friable, nonsticky, nonplastic; fragments; very strongly acid, pH 4.5, unspecified. Lab sample # 40A04175. Saprolite; augered sample; 5- to 6-foot depth discarded.