IDENTIFIERS

  • Current Taxon Name (Soil Name): Alakai
  • OSD
  • Series Extent
  • User Site ID: S2003HI-003-001
  • User Pedon ID: S03HI-003-001
  • Vegetation Plot ID: S2003HI-003-001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0269
  • NCSS Pedon Lab Data NASIS Record ID - 20030
  • Print Date: 4/22/2025

    • 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: 21.5618496
  • Std. Longitude: -158.1563873
  • Datum: WGS84
  • Location Description: Mt. Kaala Natural Reserv, SU (summit) near shoulder where plateau begins to pinch off; simple VL slope; approximately 110 feet (paced) from plateau edge.
  • State: Hawaii
  • County: HI003—Honolulu

    • PEDON

  • Describers Name: Chris W. Smith
  • Current Taxonomic Class: Clayey, dysic, isomesic Terric Haplosaprists
  • Current Taxon Kind: series
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Alakai
  • Classificaton Date - 6/11/2008
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Alakai
  • Taxonomic Class - Clayey, ferrihumic, dysic, isothermic Terric Haplo
  • Taxon Kind - series
  • Classificaton Date - 3/22/2003
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: mountain slope
  • Geomorphic Component Mountains: mountainflank, upper third
  • Slope Position: upper third
  • Slope Complexity: simple
  • Runoff: negligible
  • Drainage Class: poorly
  • Wet Soil Moisture Duration: 365
  • Bedrock: moderately coherent basalt at 152cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/22/2003 (actual site observation date)
  • Microrelief Kind: microlow
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - swamp
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CHEIR

    MECO10

    SPSQ70

    Cheirodendron

    Metrosideros collina

    Sphagnum squarrosum

    cheirodendron

    —

    sphagnum

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    —

    —

    —

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    sapric soil materials

    aquic conditions

    —

    —

    —-

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

    3/22/2003

    50

    —

    15
    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

    14

    —

    —

    1227

    —

    180

    2331

    —

    365

    18

    —

    —

    15

    —

    —

    —

    —

    —

    —

    —
    Oa—0 to 28 centimeters (0.0 to 11.0 inches); black (10YR 2/1) muck; slightly sticky, slightly plastic; fragments; noneffervescent; very strongly acid, pH 4.5. Lab sample # 08N01714; observed in auger, bucket
    Ag—28 to 64 centimeters (11.0 to 25.2 inches); black (7.5YR 2.5/1) mucky silty clay; slightly sticky, slightly plastic; fragments; noneffervescent; very strongly acid, pH 4.7. Lab sample # 08N01715; wet, satiated when described; observed in auger, bucket
    A—64 to 81 centimeters (25.2 to 31.9 inches); mucky silty clay; slightly sticky, slightly plastic; fragments; noneffervescent; very strongly acid, pH 5.0. Lab sample # 08N01716; wet, satiated when described; observed in auger, bucket
    Bqm—81 to 89 centimeters (31.9 to 35.0 inches); extremely paragravelly; fragments; very strongly acid, pH 5.0. Lab sample # 08N01717; wet, satiated when described; observed in auger, bucket
    C—89 to 152 centimeters (35.0 to 59.8 inches); fragments; strongly acid, pH 5.3. Lab sample # 08N01718; wet, satiated when described; observed in auger, bucket
    Cr—152 to 163 centimeters (59.8 to 64.2 inches); fragments; strongly acid, pH 5.3.; wet, satiated when described; observed in auger, bucket