IDENTIFIERS

  • Current Taxon Name (Soil Name): Tilma
  • OSD
  • Series Extent
  • User Site ID: S2013WA075001
  • User Pedon ID: S2013WA075001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 14N0001
  • NCSS Pedon Lab Data NASIS Record ID - 72812
  • 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: 46.7836806
  • Std. Longitude: -117.0800000
  • Datum: WGS84
  • Township: 15N
  • Range: 45E
  • Section: 13
  • PLSS Details: 570m north and 422 m west of SE corner
  • Map Unit: 104—Thatuna silt loam, 7 to 25 percent slopes
  • Country: US—United States
  • State: Washington
  • County: WA075—Whitman
  • MLRA: 9—Palouse and Nez Perce Prairies
  • MLRA Soil Survey Area: NW-PAS—Pasco, Washington
  • Non-MLRA Soil Survey Area: WA075—Whitman County, Washington
  • 7.5 Minute USGS Quad: 46117-G1—Viola, Washington

    • PEDON

  • Describers Name: Scott Bare, Brian Gardner, Kelley Lefferts
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Aquic Argixerolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Tilma
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Aquic Argixerolls
  • Taxon Kind - taxadjunct
  • PSC - 58 to 108 cm.
  • Classificaton Date - 7/14/2014
  • Classifier - Scott Bare
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - xeric
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Pedon Vegetation and Crop Cover Information:
  • Agronomic Feature - close grown annual crop, or crop-fallow
  • Current Crop - beans, other dry
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: toeslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/5/2013 (actual site observation date)
  • Data Collector: Brian Gardner
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - close-grown crop
  • 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

    mollic epipedon

    albic horizon

    argillic horizon

    0—28

    47—58

    58—150

    —28—

    —11—

    —92—
    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

    8

    —

    —

    780

    —

    280

    635

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    2198

    Cook Farm Field D

    SNOTEL
    Ap1—0 to 15 centimeters (0.0 to 5.9 inches);, very dark brown (10YR 2/2) broken face, moist; silt loam; 21 percent clay; weak medium platy structure; moderately hard, friable, slightly sticky, slightly plastic; common very fine roots throughout; common very fine tubular pores; 18 percent fine distinct dark yellowish brown (10YR 4/6), dry, and dark yellowish brown (10YR 4/4), dry, masses of oxidized iron; fragments; clear smooth boundary. Lab sample # 14N00001; observed in pit, small
    Ap2—15 to 28 centimeters (5.9 to 11.0 inches);, very dark grayish brown (10YR 3/2) broken face, moist; silt loam; 24 percent clay; weak medium prismatic structure; very hard, friable, moderately sticky, moderately plastic; common very fine roots throughout; many very fine tubular pores; 5 percent prominent silt coats on surfaces along pores; fragments; clear smooth boundary. Lab sample # 14N00002; observed in pit, small
    Bt—28 to 47 centimeters (11.0 to 18.5 inches);, dark grayish brown (10YR 4/2) crushed, moist; silty clay loam; 27 percent clay; weak fine prismatic parts to strong fine subangular blocky structure; hard, friable, moderately sticky, moderately plastic; few very fine roots throughout; many very fine tubular and few fine tubular pores; 60 percent prominent clay films on all faces of peds and 75 percent prominent light gray (10YR 7/2), dry, and very pale brown (10YR 8/2), dry, silt coats on all faces of peds; fragments; clear smooth boundary. Lab sample # 14N00003; observed in pit, small
    E—47 to 58 centimeters (18.5 to 22.8 inches);, 55 percent dark grayish brown (10YR 4/2) broken face and 45 percent light brownish gray (10YR 6/2) broken face, moist; silt loam; 20 percent clay; moderate fine subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; few very fine roots throughout; common very fine tubular and few fine tubular pores; 1 percent prominent clay films on surfaces along pores and 15 percent prominent light gray (10YR 7/2), dry, and white (10YR 8/1), dry, silt coats on surfaces along pores; 1 percent fine distinct dark yellowish brown (10YR 4/6), dry, and dark yellowish brown (10YR 4/4), dry, masses of oxidized iron; fragments; abrupt smooth boundary. Lab sample # 14N00004; observed in pit, small
    Btb1—58 to 96 centimeters (22.8 to 37.8 inches);, dark grayish brown (10YR 4/2) broken face, moist; silty clay; 42 percent clay; strong medium prismatic structure; very hard, very firm, very sticky, very plastic; few very fine roots throughout; common very fine tubular pores; 1 percent prominent white (10YR 8/1), dry, silt coats on surfaces along pores and 90 percent prominent clay films on all faces of peds; 1 percent fine distinct irregular manganese coatings; fragments; clear wavy boundary. Lab sample # 14N00005; observed in pit, small
    Btb2—96 to 125 centimeters (37.8 to 49.2 inches);, brown (10YR 5/3) broken face, moist; silty clay loam; 33 percent clay; weak fine prismatic parts to strong fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; few very fine roots throughout; common very fine tubular pores; 1 percent prominent silt coats on surfaces along pores and 90 percent prominent grayish brown (10YR 5/2), dry, clay films on vertical faces of peds; 25 percent fine faint brown (7.5YR 4/4), dry, ferriargillans and 30 percent fine manganese masses; fragments; clear smooth boundary. Lab sample # 14N00006; observed in pit, small
    Btb3—125 to 150 centimeters (49.2 to 59.1 inches);, grayish brown (10YR 5/2) broken face, moist; silty clay loam; 30 percent clay; weak fine prismatic parts to moderate fine subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; common very fine tubular pores; 90 percent prominent grayish brown (10YR 5/2), dry, clay films on vertical faces of peds; 5 percent fine manganese masses and 5 percent fine masses of oxidized iron and 15 percent fine iron-manganese concretions and 20 percent fine faint brown (7.5YR 4/4), dry, ferriargillans; fragments. Lab sample # 14N00007; observed in pit, small