IDENTIFIERS

  • Current Taxon Name (Soil Name): Ofu Variant
  • OSD
  • Series Extent
  • User Site ID: 81AS603059
  • User Pedon ID: 81AS603059
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 81P0743
  • NCSS Pedon Lab Data NASIS Record ID - 49587
  • Print Date: 11/21/2024

    • 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: -14.2180556
  • Std. Longitude: -169.0555556
  • Datum: WGS84
  • Location Description: Tau Farm about 400 feet east of the office.
  • State: American Samoa

    • PEDON

  • Describers Name: S. Nakamura
  • Current Taxonomic Class: Very-fine, mixed, isohyperthermic Typic Hapludolls
  • Current Taxon Kind: variant
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 59
  • Correlated Information:
  • Soil Name - Ofu Variant
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Tau
  • Classificaton Date - 9/1/1981
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: upland slope
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1981 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    12

    —

    —

    92

    —

    508

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    —

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    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark brown (10YR 3/3) interior silty clay; weak very fine and fine subangular blocky structure; firm, very sticky, very plastic; 5.5 roots; 5.5 very fine and fine tubular pores; fragments; neutral, pH 6.6, hellige-truog; clear wavy boundary. Lab sample # 81P04436. many roots
    1Bw—20 to 36 centimeters (7.9 to 14.2 inches); brown (7.5YR 4/3) interior gritty silty clay; moderate very fine and fine subangular blocky structure; friable, very sticky, very plastic; 5.5 roots; 2.5 very fine and fine tubular pores; 3 percent by volume 250-425-600 millimeter mixed fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 81P04437. 10 to 15 percent weathered tuff fragments.; many roots
    1C1—36 to 71 centimeters (14.2 to 28.0 inches); dark yellowish brown (10YR 3/4) interior clay loam; weak fine and medium subangular blocky structure; friable, moderately sticky, moderately plastic; 2.5 roots; 5.5 very fine tubular and 2.5 fine tubular pores; fragments; slightly acid, pH 6.1, hellige-truog; abrupt wavy boundary. Lab sample # 81P04438. This horizon is highly weathered tuff that easily crushes.; common roots
    2C2—71 to 160 centimeters (28.0 to 63.0 inches); yellowish brown (10YR 5/4) interior and black (10YR 2/1) interior and reddish brown (5YR 4/4) interior sandy loam; very firm, nonsticky, nonplastic; fragments; slightly acid, pH 6.3, hellige-truog. Lab sample # 81P04439. Tuff that easily crushes to sandy loam; common thin dark yellowish brown (10YR 4/4) coatings on faces of tuff fragments.