IDENTIFIERS

  • Current Taxon Name (Soil Name): Tlozhavun
  • OSD
  • Series Extent
  • Local Phase: thawed
  • User Site ID: S2012AK290004
  • User Pedon ID: S2012AK290004
  • Vegetation Plot ID: S2012AK290004
  • User Site Association ID: AK685_3209_TLOZHAVUN_ALLAK685_F232XY221AK_2FLmodal
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 13N19003
  • NCSS Pedon Lab Data NASIS Record ID - 72893
  • Print Date: 11/25/2024

    • 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: 66.4120458
  • Std. Longitude: -147.4669932
  • Datum: WGS84
  • Township: 18N
  • Range: 1E
  • Section: 2
  • PLSS Details: SE1/4
  • Location Description: This site is located approximately 400ft west and 1540ft north of the southeast corner of Section 2, T.18N, R.1E; Fairbanks, Meridian.
  • State: Alaska
  • County: AK290—Yukon-Koyukuk Census Area
  • MLRA: 232—Yukon Flats Lowlands
  • Non-MLRA Soil Survey Area: AK685—Yukon Flats Area, Alaska
  • 7.5 Minute USGS Quad: 66147-C1—Beaver B-1, Alaska

    • PEDON

  • Describers Name: Nathan Roth, Shawn Nield, Jason Bladow
  • Current Taxonomic Class: Coarse-loamy, mixed, superactive, nonacid Typic Haplocryepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: classifies to current taxon name, brief description
  • Pedon Purpose: laboratory sampling site
  • Correlated Information:
  • Soil Name - Tlozhavun
  • PSC - 25 to 100 cm.
  • Classificaton Date - 12/21/2016
  • Classifier - J Paul
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - D32 - boreal forest silty terrace frozen (3209)
  • Taxonomic Class - Coarse-loamy, mixed, superactive, calcareous, subgelic Typic Haplorthels
  • Taxon Kind - family
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/25/2013
  • Classifier - N Roth
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: hemic organic material over coarse-loamy alluvium
  • Landscape: Yukon river valley
  • Landform: high flood-plain step
  • Microfeature: bar
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: well
  • Flooding: rare flooding for extremely brief periods
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

  • Vegplot Text Note(s): AK SITE Access Database

    • SITE OBSERVATION

  • Observation Date: 8/14/2012 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • 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

    2MOSS

    ARANA

    ARUV

    BRINP5

    CAPU

    CHAN9

    CNCN

    EQAR

    EQSC

    GABO2

    GELI2

    HEAL

    HYSP70

    LIBO3

    MEPA

    ORSE

    PEAP60

    PIGL

    PIGL

    PIGL

    POPU3

    POTR5

    POTR5

    POTR5

    ROAC

    SAGL

    SAUN8

    SHCA

    VAVI

    —

    Arnica angustifolia ssp. angustifolia

    Arctostaphylos uva-ursi

    Bromus inermis ssp. pumpellianus var. pumpellianus

    Calamagrostis purpurascens

    Chamerion angustifolium

    Cnidium cnidiifolium

    Equisetum arvense

    Equisetum scirpoides

    Galium boreale

    Geocaulon lividum

    Hedysarum alpinum

    Hylocomium splendens

    Linnaea borealis

    Mertensia paniculata

    Orthilia secunda

    Peltigera aphthosa

    Picea glauca

    Picea glauca

    Picea glauca

    Polemonium pulcherrimum

    Populus tremuloides

    Populus tremuloides

    Populus tremuloides

    Rosa acicularis

    Salix glauca

    Sanionia uncinata

    Shepherdia canadensis

    Vaccinium vitis-idaea

    Moss

    narrowleaf arnica

    kinnikinnick

    Pumpelly's brome

    purple reedgrass

    fireweed

    Jakutsk snowparsley

    field horsetail

    dwarf scouringrush

    northern bedstraw

    false toadflax

    alpine sweetvetch

    splendid feather moss

    twinflower

    tall bluebells

    sidebells wintergreen

    felt lichen

    white spruce

    white spruce

    white spruce

    Jacob's-ladder

    quaking aspen

    quaking aspen

    quaking aspen

    prickly rose

    grayleaf willow

    sanionia moss

    russet buffaloberry

    lingonberry

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    1

    20

    2

    5

    1

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    3

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    2

    15

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    1

    5

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    5

    10

    1

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    30

    15

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    2

    5

    20

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

    permafrost

    noncoherent

    170 - 200

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

    hemic soil materials

    ochric epipedon

    cambic horizon

    redox concentrations

    permafrost

    0—3

    0—18

    17—50

    170—

    170—

    —-

    —-

    —-

    —-

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

    8/14/2012

    200

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    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

    1

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    124

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    270

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    Oe—0 to 3 centimeters (0.0 to 1.2 inches); very dark grayish brown (10YR 3/2); low excavation difficulty; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 13N03742; moderately dry when described; observed in pit, small
    A—3 to 17 centimeters (1.2 to 6.7 inches); brown (7.5YR 4/4) very fine sandy loam; 12 percent carbonate clay; weak fine granular structure; nonsticky, nonplastic; low excavation difficulty; 2.0 medium roots throughout and 7.0 fine roots throughout and 1.0 coarse roots throughout; fragments; noneffervescent, by hcl, 1n; neutral, pH 7.0, pH meter; clear smooth boundary. Lab sample # 13N03743; moderately dry when described; observed in pit, small
    Bw—17 to 50 centimeters (6.7 to 19.7 inches); dark yellowish brown (10YR 4/4) very fine sandy loam; 12 percent carbonate clay; weak medium subangular blocky structure; nonsticky, nonplastic; low excavation difficulty; 2.0 medium roots throughout and 4.0 fine roots throughout and 1.0 coarse roots throughout; 1 percent fine faint irregular weakly coherent cemented light gray (10YR 7/1), moist, carbonate masses with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, pH meter; gradual wavy boundary. Lab sample # 13N03744; moderately dry when described; observed in pit, small. Bw parts to a weak, fine platy structure most likely from cryogenesis due to annual frost cycles.
    C1—50 to 84 centimeters (19.7 to 33.1 inches); dark grayish brown (2.5Y 4/2) silt loam; 12 percent carbonate clay; massive; nonsticky, nonplastic; low excavation difficulty; 2.0 medium roots throughout and 3.0 fine roots throughout; 1 percent fine faint irregular weakly coherent cemented light gray (10YR 7/1), moist, carbonate masses with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, pH meter; gradual smooth boundary. Lab sample # 13N03745; moderately dry when described; observed in pit, small
    C2—84 to 170 centimeters (33.1 to 66.9 inches); 80 percent dark grayish brown (2.5Y 4/2) and 20 percent olive gray (5Y 4/2) stratified stratified very fine sandy loam; 5 percent carbonate clay; massive; nonsticky, nonplastic; low excavation difficulty; 1.0 medium roots throughout and 3.0 fine roots throughout; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 7.9, pH meter; clear smooth boundary. Lab sample # 13N03746; moderately dry when described; observed in pit, small. C2 has stratified bands fine sands within the lvfs matrix.
    Cff—170 to 200 centimeters (66.9 to 78.7 inches); dark gray (5Y 4/1) very fine sandy loam; 10 percent carbonate clay; massive; nonsticky, nonplastic; moderate excavation difficulty; fragments; noneffervescent, by hcl, 1n. Lab sample # 13N03747; moderately dry when described; observed in pit, small