IDENTIFIERS

  • Current Taxon Name (Soil Name): Knik
  • OSD
  • Series Extent
  • User Site ID: S1989AK170003
  • User Pedon ID: 89AK170003
  • Vegetation Plot ID: S1989AK170003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 89P0642
  • NCSS Pedon Lab Data NASIS Record ID - 61742
  • 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: 61.6172218
  • Std. Longitude: -149.3680573
  • Datum: WGS84
  • Location Description: Matanuska - Susitna Survey Area; Chippewa Subdivision.
  • State: Alaska
  • County: AK170—Matanuska-Susitna Borough
  • MLRA: 170—Cook Inlet-Susitna Lowland

    • PEDON

  • Describers Name: Mark H. Clark, Joe Moore, and Bob Ahrens
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - Knik
  • Taxonomic Class - Coarse-silty over sandy or sandy-skeletal, mixed Typic Cryochrepts
  • PSC - 25 to 102 cm.
  • Classificaton Date - 6/1/1989
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: river valley
  • Landform: terrace—outwash or marine
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1989 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BEPA

    CACA4

    VIED

    Betula papyrifera

    Calamagrostis canadensis

    Viburnum edule

    paper birch

    bluejoint

    squashberry

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    cambic horizon

    0—18

    18—36

    —-

    —-
    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

    0

    —

    —

    180

    —

    46

    —

    —

    17

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oe—0 to 8 centimeters (0.0 to 3.1 inches); dark reddish brown (5YR 3/3); 5.5 very fine roots and fine and medium roots; fragments; abrupt smooth boundary. Lab sample # 89P03597. many very fine roots
    A—8 to 13 centimeters (3.1 to 5.1 inches); dark brown (10YR 3/3) silt loam; weak fine granular structure; very friable, nonsticky, nonplastic; 5.5 very fine roots and fine and medium roots; fragments; abrupt smooth boundary. Lab sample # 89P03598. many very fine roots
    Ae—13 to 26 centimeters (5.1 to 10.2 inches); 40 percent dark gray (10YR 4/1) and 60 percent dark yellowish brown (10YR 3/4) silt loam; 11 percent brown (7.5YR 4/4) fine distinct mottles; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; 2.5 very fine and fine roots; fragments; abrupt wavy boundary. Lab sample # 89P03599. common very fine and fine roots; common fine distinct 7.5YR44 mottles
    Bw—26 to 44 centimeters (10.2 to 17.3 inches); brown (7.5YR 4/4) silt loam; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; 0.5 very fine and fine roots; fragments; clear wavy boundary. Lab sample # 89P03600. few very fine and fine roots
    2BC—44 to 59 centimeters (17.3 to 23.2 inches); brown (10YR 4/3) very gravelly loamy coarse sand; massive; friable, nonsticky, nonplastic; 0.5 very fine and fine roots; fragments; clear smooth boundary. Lab sample # 89P03601. few very fine and fine roots
    2C1—59 to 69 centimeters (23.2 to 27.2 inches); dark brown (10YR 3/3) extremely gravelly sand; single grain; loose, nonsticky, nonplastic; fragments; abrupt smooth boundary. Lab sample # 89P03602
    2C2—69 to 74 centimeters (27.2 to 29.1 inches); 50 percent dark brown (10YR 3/3) and 50 percent dark yellowish brown (10YR 3/4) sand; massive; friable, nonsticky, nonplastic; fragments; abrupt smooth boundary. Lab sample # 89P03603
    2C3—74 to 110 centimeters (29.1 to 43.3 inches); 50 percent dark brown (10YR 3/3) and 50 percent dark yellowish brown (10YR 3/4) extremely gravelly coarse sand; single grain; loose, nonsticky, nonplastic; fragments. Lab sample # 89P03604