IDENTIFIERS

  • Current Taxon Name (Soil Name): Southwick
  • OSD
  • Series Extent
  • User Site ID: S2009ID057010
  • User Pedon ID: S2009ID057001
  • Vegetation Plot ID: S2009ID057010
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Pedon # - 09N1149
  • NCSS Pedon Lab Data NASIS Record ID - 25000
  • Print Date: 11/24/2024

    • 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: 46.6566944
  • Std. Longitude: -116.5102500
  • Datum: WGS84
  • Township: 38N
  • Range: 1W
  • Section: 7
  • Map Unit: 44—Southwick silt loam, dry, 3 to 12 percent slopes
  • Country: US—United States
  • State: Idaho
  • County: ID057—Latah
  • MLRA: 9—Palouse and Nez Perce Prairies
  • Non-MLRA Soil Survey Area: ID057—Latah County, Idaho
  • 7.5 Minute USGS Quad: 46116-F5—Texas Ridge, Idaho

    • PEDON

  • Describers Name: BDG
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Aquic Argixerolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Southwick
  • PSC - 70 to 120 cm.
  • Classificaton Date - 3/28/2013
  • Classifier - Brian Gardner
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - xeric
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Southwick
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Oxyaquic Argixerolls
  • Classificaton Date - 7/27/2009
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash and loess over Tertiary silty alluvium
  • Landscape: foothills
  • Landform: hillslope
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/27/2009 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • 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

    BRIN2

    DAGL

    DIPSA

    HYPER

    POTEN

    ROMU

    TRAGO

    Bromus inermis

    Dactylis glomerata

    Dipsacus

    Hypericum

    Potentilla

    Rosa multiflora

    Tragopogon

    smooth brome

    orchardgrass

    teasel

    St. Johnswort

    cinquefoil

    multiflora rose

    goatsbeard

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

    mollic epipedon

    volcanic glass

    cambic horizon

    albic horizon

    episaturation

    redox depletions with chroma 2 or less

    argillic horizon

    abrupt textural change

    0—45

    0—10

    33—61

    61—70

    61—70

    61—70

    70—150

    70—70

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    —-

    —-

    —-

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    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

    6

    —

    —

    844

    —

    250

    737

    767

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    Ap1—0 to 10 centimeters (0.0 to 3.9 inches); grayish brown (10YR 5/2) crushed, very dark grayish brown (10YR 3/2) crushed, moist; silt loam; 18 percent clay; moderate fine and medium granular structure; moderately hard, friable, moderately sticky, very plastic; 2.0 very fine roots throughout and 1.0 medium roots throughout; 1.0 medium tubular pores; fragments; moderately acid, pH 5.7, pH meter; clear wavy boundary. Lab sample # 09N04554; observed in pit, small
    Ap2—10 to 26 centimeters (3.9 to 10.2 inches); grayish brown (10YR 5/2) crushed, very dark grayish brown (10YR 3/2) crushed, moist; silt loam; 18 percent clay; weak thick platy parts to moderate fine and medium subangular blocky structure; hard, friable, moderately sticky, very plastic; 1.0 very fine roots throughout; 2.0 very fine irregular and 1.0 medium tubular and 1.0 fine tubular pores; fragments; moderately acid, pH 5.8, pH meter; clear wavy boundary. Lab sample # 09N04555; observed in pit, small
    AB—26 to 33 centimeters (10.2 to 13.0 inches); brown (10YR 4/3) crushed, very dark grayish brown (10YR 3/2) crushed, moist; silt loam; 24 percent clay; moderate medium subangular blocky structure; very hard, firm, moderately sticky, very plastic; 0.5 very fine roots between peds; 2.0 very fine irregular and 1.0 fine tubular pores; 1 percent faint silt coats on surfaces along pores; fragments; moderately acid, pH 5.8, pH meter; gradual wavy boundary. Lab sample # 09N04556; observed in pit, small
    BA—33 to 45 centimeters (13.0 to 17.7 inches); brown (10YR 5/3) crushed and pale brown (10YR 6/3) interior, very dark grayish brown (10YR 3/2) crushed and dark brown (10YR 3/3) interior, moist; silt loam; 23 percent clay; moderate medium and coarse subangular blocky structure; very hard, firm, moderately sticky, very plastic; 0.5 very fine roots between peds; 2.0 very fine irregular and 1.0 fine tubular pores; 1 percent faint clay films on surfaces along pores and 5 percent faint skeletans on all faces of peds; fragments; moderately acid, pH 5.9, pH meter; gradual wavy boundary. Lab sample # 09N04557; observed in pit, small
    Bt—45 to 61 centimeters (17.7 to 24.0 inches); light yellowish brown (10YR 6/4) interior, dark grayish brown (10YR 4/2) interior, moist; silt loam; 20 percent clay; moderate medium and coarse subangular blocky structure; very hard, firm, moderately sticky, very plastic; 0.2 very fine roots between peds; 3.0 very fine irregular and 2.0 fine tubular pores; 3 percent faint clay films on all faces of peds and 10 percent distinct silt coats on surfaces along pores and 35 percent distinct skeletans on all faces of peds; fragments; slightly acid, pH 6.1, pH meter; clear wavy boundary. Lab sample # 09N04558; observed in pit, small
    E—61 to 70 centimeters (24.0 to 27.6 inches); light gray (2.5Y 7/2) interior, light olive brown (2.5Y 5/3) interior, moist; silt loam; 12 percent clay; weak fine and medium subangular blocky structure; hard, friable, slightly sticky, moderately plastic; 0.2 very fine roots throughout; 2.0 very fine irregular pores; 2 percent fine spherical masses of oxidized iron; fragments; moderately acid, pH 5.7, pH meter; abrupt irregular boundary. Lab sample # 09N04559; observed in pit, small
    Btb1—70 to 92 centimeters (27.6 to 36.2 inches); light yellowish brown (10YR 6/4) interior, dark yellowish brown (10YR 4/4) interior, moist; silty clay loam; 31 percent clay; weak coarse prismatic parts to strong medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.2 very fine roots between peds; 2.0 very fine irregular pores; 15 percent prominent clay films on vertical faces of peds and 15 percent prominent skeletans on vertical faces of peds and 20 percent distinct clay films on all faces of peds; 3 percent fine spherical iron-manganese concretions and 5 percent dendritic manganese coatings on vertical faces of peds; fragments; moderately acid, pH 6.0, pH meter; clear wavy boundary. Lab sample # 09N04560; observed in pit, small
    Btb2—92 to 112 centimeters (36.2 to 44.1 inches); light yellowish brown (10YR 6/4) interior, brown (10YR 5/3) interior, moist; silty clay loam; 35 percent clay; weak very coarse prismatic parts to strong fine and medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.1 very fine roots between peds; 2.0 very fine irregular pores; 8 percent prominent clay films on vertical faces of peds and 10 percent prominent skeletans on vertical faces of peds and 20 percent distinct clay films on all faces of peds; 5 percent dendritic manganese coatings on vertical faces of peds and 5 percent fine spherical iron-manganese concretions; fragments; neutral, pH 6.6, pH meter; gradual wavy boundary. Lab sample # 09N04561; observed in pit, small
    Btb3—112 to 150 centimeters (44.1 to 59.1 inches); light yellowish brown (10YR 6/4) interior, brown (10YR 4/3) interior, moist; silty clay loam; 37 percent clay; weak very coarse prismatic parts to strong fine and medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.1 very fine roots between peds; 2.0 very fine irregular pores; 5 percent distinct skeletans on vertical faces of peds and 5 percent prominent clay films on vertical faces of peds and 10 percent prominent organoargillans on vertical faces of peds and 35 percent distinct clay films on all faces of peds; 2 percent fine spherical iron-manganese concretions; fragments; neutral, pH 7.0, pH meter. Lab sample # 09N04562; observed in pit, small