IDENTIFIERS

  • Current Taxon Name (Soil Name): Altamira
  • OSD
  • Series Extent
  • User Site ID: S2015PR055001
  • User Pedon ID: S2015PR055001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Print Date: 12/9/2025

    • 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: 17.9688200
  • Std. Longitude: -66.8688800
  • Datum: WGS84
  • Location Description: 390 meters south on Ballenas Trail, south of road 334, Guanica Dry Forest
  • Map Unit: LcE—La Covana-Limestone outcrop-Seboruco complex, 12 to 40 percent slopes
  • Country: US—United States
  • State: Puerto Rico
  • County: PR055—Guanica
  • MLRA: 271—Semiarid Mountains and Valleys
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: SE-MAZ—Mayaguez, Puerto Rico
  • Non-MLRA Soil Survey Area: PR787—San German Area, Southwestern Puerto Rico
  • 7.5 Minute USGS Quad: TPR0057—Punta Verraco, Puerto Rico

    • PEDON

  • Describers Name: M. Matos, S. Rios
  • Current Taxonomic Class: Coarse-loamy, carbonatic, isohyperthermic Typic Haplocalcids
  • Current Taxon Kind: series
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Altamira
  • Classificaton Date - 4/9/2015
  • Classifier - Manuel Matos and Samuel Rios
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from limestone and siltstone
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: linear
  • Drainage Pattern: dendritic
  • Runoff: high
  • Ksat Class Upper: moderately high
  • Ksat Class Lower: moderately low
  • Drainage Class: well
  • Bedrock: limestone and siltstone
  • Geology: Tp-ponce Limestone formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/9/2015 (actual site observation date)
  • Data Collector: M. Matos, S. Rios
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - other 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

    ochric epipedon

    calcic horizon

    0—30

    30—105

    —-

    —-
    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

    8

    —

    —

    133

    —

    220

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    2067

    Bosque Seco

    SCAN
    A—0 to 30 centimeters (0.0 to 11.8 inches);, dark gray (10YR 4/1) broken face, moist; clay loam; strong medium granular, and strong coarse granular structure; slightly hard, firm, moderately sticky, moderately plastic; many very fine roots throughout and many medium roots throughout; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.5, unspecified; clear wavy boundary.; moist when described; observed in pit, large or quarry
    Bk1—30 to 55 centimeters (11.8 to 21.7 inches);, grayish brown (10YR 5/2) broken face, moist; silty clay; moderate medium subangular blocky, and moderate coarse subangular blocky structure; very hard, extremely firm, moderately sticky, very plastic; common very fine roots throughout and common medium roots throughout; 5 percent distinct slickensides (pedogenic) on top faces of peds; 15 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 15 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified; gradual wavy boundary.; moist when described; observed in pit, large or quarry
    Bk2—55 to 86 centimeters (21.7 to 33.9 inches);, light yellowish brown (2.5Y 6/4) broken face, moist; silty clay loam; moderate fine subangular blocky, and moderate medium subangular blocky structure; moderately hard, firm, slightly sticky, moderately plastic; few very fine roots throughout and few medium roots throughout and few fine roots throughout; 2 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 2 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified; clear wavy boundary.; moist when described; observed in pit, large or quarry
    Bk3—86 to 105 centimeters (33.9 to 41.3 inches);, light yellowish brown (2.5Y 6/4) broken face, moist; silty clay loam; weak fine subangular blocky, and weak medium subangular blocky structure; moderately hard, firm, slightly sticky, moderately plastic; common very fine roots throughout; 5 percent faint pressure faces on all faces of peds; 1 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout and 1 percent medium prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout; 30 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 30 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified; clear smooth boundary.; moist when described; observed in pit, large or quarry
    BCk—105 to 126 centimeters (41.3 to 49.6 inches);, light yellowish brown (2.5Y 6/3) broken face, moist; silty clay loam; weak coarse prismatic, and weak fine subangular blocky, and weak medium subangular blocky structure; very hard, extremely firm, slightly sticky, moderately plastic; common very fine roots throughout; 5 percent faint pressure faces on all faces of peds; 25 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout and 25 percent medium prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout; 2 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 2 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified; clear smooth boundary.; moist when described; observed in pit, large or quarry
    C—126 to 161 centimeters (49.6 to 63.4 inches);, pale yellow (2.5Y 7/3) broken face, moist; silty clay loam; weak medium subangular blocky, and weak coarse subangular blocky structure; very hard, extremely firm, slightly sticky, moderately plastic; few very fine roots in cracks; 5 percent fine prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout and 5 percent medium prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout and 20 percent medium prominent light brownish gray (2.5Y 6/2), moist, masses of reduced iron throughout and 20 percent coarse prominent light brownish gray (2.5Y 6/2), moist, masses of reduced iron throughout and 25 percent fine prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout and 25 percent medium prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout; 2 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 2 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified; gradual smooth boundary.; moist when described; observed in pit, large or quarry
    Cr—161 to 203 centimeters (63.4 to 79.9 inches);, pale yellow (2.5Y 7/4) broken face, moist; massive; 5 percent fine prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout and 5 percent medium prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout and 20 percent medium prominent light brownish gray (2.5Y 6/2), moist, masses of reduced iron throughout and 20 percent coarse prominent light brownish gray (2.5Y 6/2), moist, masses of reduced iron throughout and 25 percent fine prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout and 25 percent medium prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout; 15 percent fine prominent white (10YR 8/1), moist, carbonate masses throughout and 15 percent medium prominent white (10YR 8/1), moist, carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, unspecified.; observed in pit, large or quarry