IDENTIFIERS

  • Current Taxon Name (Soil Name): Shilla
  • OSD
  • Series Extent
  • User Site ID: S1991ID069031
  • User Pedon ID: 91ID069031
  • Vegetation Plot ID: S1991ID069031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P1096
  • NCSS Pedon Lab Data NASIS Record ID - 64132
  • Print Date: 1/11/2025

    • 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: 46.1061096
  • Std. Longitude: -116.8380585
  • Datum: WGS84
  • Township: 32N
  • Range: 4W
  • Section: 21
  • PLSS Details: 545 feet S and 2600 feet E of NW corner
  • Location Description: Hand dug pit to 46" - backhoe enlarged later
  • State: Idaho
  • County: ID069—Nez Perce
  • MLRA: 43—Northern Rocky Mountains
  • Non-MLRA Soil Survey Area: ID611—Lewis and Nez Perce Counties, Idaho

    • PEDON

  • Describers Name: T. Hahn
  • Current Taxonomic Class: Ashy over loamy-skeletal, mixed, frigid Alfic Vitrixerands
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 31
  • Correlated Information:
  • Soil Name - Shilla
  • PSC - 0 to 102 cm.
  • Classificaton Date - 1/27/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Shilla
  • Taxonomic Class - Ashy over loamy-skeletal, mixed, frigid Alfic Vitr
  • Taxon Kind - series
  • Classificaton Date - 8/5/1991
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plateau
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: with 10 to <45
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/5/1991 (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
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABGR

    GAYLU

    PEDIC

    PSME

    SPIRA

    THALI2

    Abies grandis

    Gaylussacia

    Pedicularis

    Pseudotsuga menziesii

    Spiraea

    Thalictrum

    grand fir

    huckleberry

    lousewort

    Douglas-fir

    spirea

    meadow-rue

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    —

    argillic horizon

    lithic contact

    0—3

    0—41

    41—117

    135—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

    3

    —

    —

    1574

    —

    70

    711

    —

    —

    —

    —

    —

    7.2

    10

    2.2

    —

    —

    —

    —

    —
    O—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Lab sample # 91P07180. Slightly decomposed twigs, moss, and needles. Not sampled.
    A—3 to 6 centimeters (1.2 to 2.4 inches); very dark grayish brown (10YR 3/2) crushed, dark grayish brown (10YR 4/2) crushed, dry; silt loam; 12 percent clay; moderate fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine and fine roots throughout and 0.5 medium roots throughout; 0.5 very fine tubular pores; fragments; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary. Lab sample # 91P07179; moist when described;
    Bw1—6 to 26 centimeters (2.4 to 10.2 inches); dark yellowish brown (10YR 4/4) crushed and dark yellowish brown (10YR 4/4) exterior, light yellowish brown (10YR 6/4) crushed, dry; silt loam; 12 percent clay; weak medium and coarse subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 3.0 very fine and fine roots throughout and 0.5 medium roots throughout; 3.0 very fine tubular pores; fragments; moderately acid, pH 6.0, chlorophenol red; gradual smooth boundary. Lab sample # 91P07180; moist when described;. Most of gravels are fine and less than 75 mm.
    Bw2—26 to 44 centimeters (10.2 to 17.3 inches); dark yellowish brown (10YR 4/4) crushed and dark yellowish brown (10YR 4/4) exterior, light yellowish brown (10YR 6/4) crushed, dry; silt loam; 12 percent clay; weak medium subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 3.0 very fine and fine roots throughout and 0.5 medium roots throughout; 3.0 very fine tubular pores; 5 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 6.0, chlorophenol red; abrupt irregular boundary. Lab sample # 91P07181; moist when described;. Most of gravels are fine and less than 75 mm.
    2Bt1—44 to 64 centimeters (17.3 to 25.2 inches); dark yellowish brown (10YR 3/4) exterior, yellowish brown (10YR 5/4) crushed, dry; loam; 26 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; 0.5 medium roots throughout and 3.0 fine roots throughout; 21.0 very fine and fine tubular pores; 75 percent prominent dark yellowish brown (10YR 4/6) clay films on faces of peds and in pores; 10 percent by volume subangular 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; clear wavy boundary. Lab sample # 91P07182; moist when described;. discontinuous - phpvsfiid 192558; discontinuous - phpvsfiid 192558
    2Bt2—64 to 82 centimeters (25.2 to 32.3 inches); dark yellowish brown (10YR 3/4) exterior, light yellowish brown (10YR 6/4) crushed, dry; very gravelly clay loam; 28 percent clay; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; 0.5 medium roots throughout and 3.0 fine roots throughout; 21.0 very fine and fine tubular pores; 30 percent distinct dark yellowish brown (10YR 4/6) clay films on faces of peds and in pores; 15 percent by volume angular 75-162-250 millimeter basalt fragments and 45 percent by volume angular 2-39-75 millimeter basalt fragments; moderately acid, pH 6.0, chlorophenol red; gradual wavy boundary. Lab sample # 91P07183; moist when described;. Clay content varies laterally in horizon; some areas with more clay presumably influenced by underlying horizon.; discontinuous - phpvsfiid 192559; discontinuous - phpvsfiid 192559
    2Bt3—82 to 138 centimeters (32.3 to 54.3 inches); dark yellowish brown (10YR 4/4) exterior, yellowish brown (10YR 5/6) crushed, dry; extremely cobbly clay loam; 38 percent clay; moderate very fine and fine angular blocky structure; hard, friable, moderately sticky, moderately plastic; 0.5 fine roots around fragments; 3.0 very fine and fine tubular pores; 35 percent by volume angular 2-39-75 millimeter basalt fragments and 55 percent by volume angular 75-162-250 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; clear irregular boundary. Lab sample # 91P07184; moist when described;. So little soil that it is difficult to see ped faces and clay films, presumed to be some illuvial clay here.
    2R—138 to 163 centimeters (54.3 to 64.2 inches); fragments.