IDENTIFIERS

  • Current Taxon Name (Soil Name): Piihonua
  • OSD
  • Series Extent
  • User Site ID: S1991HI001012
  • User Pedon ID: 91HI001012
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 92P0263
  • NCSS Pedon Lab Data NASIS Record ID - 64502
  • Print Date: 12/4/2024

    • 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: 19.8400002
  • Std. Longitude: -155.3097229
  • Datum: WGS84
  • Location Description: Island of Hawaii, in Hakalau Nat. Wildlife Refuge. From NW corner of Pedro Parcel, follow old road 850 paces 90 degrees between Pedro fence and US Forest Service experimental exclosure. Then walk 435 paces 155 degrees to forested area adjacent to pasture.
  • State: Hawaii
  • County: HI001—Hawaii
  • MLRA: 159—Humid and Very Humid Low and Intermediate Mountain Slopes

    • PEDON

  • Describers Name: P. Malaspina and B. Laird
  • Current Taxonomic Class: Hydrous, ferrihydritic, isomesic Hydric Fulvudands
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 12
  • Correlated Information:
  • Soil Name - Piihonua
  • PSC - 25 to 100 cm.
  • Classificaton Date - 1/27/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Piihonua
  • Taxonomic Class - Typic Hydrudand
  • Taxon Kind - series
  • Classificaton Date - 7/24/1991
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: ridge
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/24/1991 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - other tree 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

    umbric epipedon

    andic soil properties

    0—0

    0—0

    —-

    —-
    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

    5

    —

    —

    1644

    —

    90

    2286

    —

    —

    —

    13.3

    10

    —

    17.2

    13.3

    —

    —

    —

    USFS Hakalau 1

    —
    A1—0 to 18 centimeters (0.0 to 7.1 inches); very dark brown (10YR 2/2) mucky* silt loam; moderate fine subangular blocky parts to strong fine granular structure; friable, slightly sticky, nonplastic; weakly smeary; 3.0 very fine and fine roots and 3.0 medium roots and 21.0 coarse roots; 0.5 very fine interstitial pores; fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # 92P01731
    A2—18 to 33 centimeters (7.1 to 13.0 inches); dark brown (7.5YR 3/2) silt loam; moderate fine subangular blocky parts to moderate fine granular structure; friable, slightly sticky, slightly plastic; weakly smeary; 3.0 very fine and fine roots and 3.0 medium and coarse roots; 0.5 very fine interstitial pores; fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # 92P01732
    Bw1—33 to 61 centimeters (13.0 to 24.0 inches); dark brown (7.5YR 3/4) and dark brown (7.5YR 3/2) silt loam, loam; moderate fine and medium subangular blocky structure; firm, slightly sticky, slightly plastic; weakly smeary; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 0.5 very fine tubular pores; fragments; strongly acid, pH 5.2, hellige-truog; gradual wavy boundary. Lab sample # 92P01733
    Bw2—61 to 86 centimeters (24.0 to 33.9 inches); dark brown (7.5YR 3/4) and dark brown (7.5YR 3/2) silt loam; moderate fine and medium subangular blocky structure; firm, moderately sticky, slightly plastic; nonsmeary; 0.5 fine and medium roots and 0.5 coarse roots; 0.5 very fine tubular pores; fragments; strongly acid, pH 5.4, hellige-truog; clear wavy boundary. Lab sample # 92P01734
    C1—86 to 137 centimeters (33.9 to 53.9 inches); dark brown (7.5YR 3/4) and dark reddish brown (5YR 3/4) silt loam; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; weakly smeary; 0.5 fine and medium roots; 0.5 very fine tubular and 3.0 fine tubular pores; fragments; moderately acid, pH 5.7, hellige-truog; abrupt smooth boundary. Lab sample # 92P01735
    C2—137 to 157 centimeters (53.9 to 61.8 inches); very dark grayish brown (10YR 3/2) loam; massive; very firm, slightly sticky, nonplastic; 0.5 very fine and fine tubular pores; fragments; moderately acid, pH 5.7, hellige-truog. Lab sample # 92P01736