IDENTIFIERS

  • Current Taxon Name (Soil Name): Bigflat
  • OSD
  • Series Extent
  • User Site ID: S1991ID059002
  • User Pedon ID: 91ID059002
  • User Site Association ID: ID703_DSM_pedons
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 92P0028
  • NCSS Pedon Lab Data NASIS Record ID - 64267
  • Print Date: 11/22/2024

    • LOCATION

  • Location Description: Ralph Bean's ranch, near stockyard.
  • State: Idaho
  • County: ID059—Lemhi

    • PEDON

  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Bigflat
  • Taxonomic Class - Fine, montmorillonitic Aridic Palexerolls
  • Classificaton Date - 6/1/1991
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1991 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    —

    —

    1890

    —

    45

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 5 centimeters (0.0 to 2.0 inches); fragments; slight effervescence; slightly acid, pH 6.5, hellige-truog; abrupt smooth boundary. decomposed cattle manure
    A1—5 to 13 centimeters (2.0 to 5.1 inches); brown (10YR 5/3), very dark brown (10YR 2/2), moist; loam; 22 percent clay; strong coarse platy structure; soft, very friable, moderately sticky, slightly plastic; 5.5 very fine and fine roots and 0.5 medium roots; 5.5 very fine interstitial and tubular pores; 5 percent by volume 2-39-75 millimeter unspecified fragments; slight effervescence; neutral, pH 6.7, hellige-truog; clear smooth boundary. platy structure due to cattle compaction; few medium roots; many very fine and fine roots
    A2—13 to 25 centimeters (5.1 to 9.8 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; silt loam; 15 percent clay; moderate medium angular blocky structure; soft, friable, moderately sticky, moderately plastic; 2.5 very fine and fine roots; 5.5 very fine interstitial and tubular pores; 5 percent by volume 2-39-75 millimeter unspecified fragments; slight effervescence; slightly alkaline, pH 7.5, hellige-truog; abrupt wavy boundary. Lab sample # 92P00188. common very fine and fine roots
    Bt—25 to 38 centimeters (9.8 to 15.0 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; clay; 54 percent clay; moderate medium angular blocky structure; hard, firm, very sticky, very plastic; 0.5 very fine and fine roots; 5.5 very fine interstitial and tubular pores; 37 percent distinct clay films on faces of peds and in pores; 2 percent by volume 2-39-75 millimeter unspecified fragments; slight effervescence; slightly alkaline, pH 7.5, hellige-truog; clear smooth boundary. Lab sample # 92P00189. common clay films surface features on faces of peds and in pores; few very fine and fine roots
    Btk—38 to 69 centimeters (15.0 to 27.2 inches); light brownish gray (10YR 6/2), brown (10YR 5/3), moist; clay loam; 37 percent clay; moderate medium angular blocky structure; hard, firm, very sticky, very plastic; 0.5 very fine and fine roots; 2.5 very fine interstitial and tubular pores; 37 percent distinct clay films on faces of peds and in pores; 2 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. accumulations of soft powdery lime; common clay films surface features on faces of peds and in pores; few very fine and fine roots
    Bkz—69 to 124 centimeters (27.2 to 48.8 inches); light brownish gray (10YR 6/2), brown (10YR 4/3), moist; clay loam; 34 percent clay; moderate coarse angular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 2.5 very fine interstitial and tubular pores; 37 percent distinct clay films on faces of peds and in pores; 5 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; slightly alkaline, pH 7.8, hellige-truog; clear smooth boundary. thin lime coatings on coarse fragments; few accumulations of gypsum 2 to 5 mm in diameter; common clay films surface features on faces of peds and in pores; few very fine and fine roots
    2Bkz—124 to 155 centimeters (48.8 to 61.0 inches); light brownish gray (10YR 6/2), brown (10YR 4/3), moist; very gravelly sandy clay loam; 22 percent clay; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 0.5 very fine and fine roots; 2.5 very fine interstitial and tubular pores; 55 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.0, hellige-truog. few thin lime coating on 10% coarse fragments; few accumulations of gypsum 2 to 5 mm in diameter; few very fine and fine roots