IDENTIFIERS

  • Current Taxon Name (Soil Name): Brocko
  • OSD
  • Series Extent
  • User Site ID: S1991MT093001
  • User Pedon ID: 91MT093001
  • Vegetation Plot ID: S1991MT093001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0940
  • NCSS Pedon Lab Data NASIS Record ID - 63977
  • Print Date: 11/23/2024

    • 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: 46.0116653
  • Std. Longitude: -112.6336136
  • Datum: WGS84
  • Township: 3N
  • Range: 8W
  • Section: 18
  • PLSS Details: 425 feet west and 2425 feet south of NE corner
  • State: Montana
  • County: MT093—Silver Bow

    • PEDON

  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Brocko
  • Taxonomic Class - Coarse-silty, mixed Borollic Calciorthids
  • Classificaton Date - 7/1/1991
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1991 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ALOPE

    Alopecurus

    foxtail

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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

    14

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    1646

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    315

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    A—0 to 8 centimeters (0.0 to 3.1 inches); brown (10YR 5/3), dark yellowish brown (10YR 3/4), moist; silt loam; moderate very fine granular structure; slightly hard, very friable, nonsticky, nonplastic; 5.5 very fine roots; fragments; very slight effervescence; slightly alkaline, pH 7.6, hellige-truog; clear wavy boundary. Lab sample # 91P05808. many very fine roots; effervescence is continuous
    Bk1—8 to 30 centimeters (3.1 to 11.8 inches); very pale brown (10YR 7/3), dark yellowish brown (10YR 4/4), moist; silt loam; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 5.5 very fine roots; fragments; violent effervescence; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary. Lab sample # 91P05809. many very fine roots
    Bk2—30 to 53 centimeters (11.8 to 20.9 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; silt loam; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 5.5 very fine roots; fragments; violent effervescence; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary. Lab sample # 91P05810. many very fine roots
    Bk3—53 to 84 centimeters (20.9 to 33.1 inches); pale brown (10YR 6/3), dark yellowish brown (10YR 4/4), moist; sandy loam; strong medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; 2.5 very fine roots; fragments; violent effervescence; moderately alkaline, pH 8.3, hellige-truog; gradual irregular boundary. Lab sample # 91P05811. root channels, surface of nodes = es-ev, roots in fractures; common very fine roots
    Bk4—84 to 124 centimeters (33.1 to 48.8 inches); pale brown (10YR 6/3), dark yellowish brown (10YR 3/4), moist; silt loam; strong medium angular blocky structure; hard, firm, nonsticky, nonplastic; 5.5 very fine roots and 0.5 very fine roots; fragments; violent effervescence; moderately alkaline, pH 8.3, hellige-truog; gradual irregular boundary. Lab sample # 91P05812. root channels, fractures have threadss of fine-3v, durinodes, occupy 70-80% nodes have coalessed, average size 3/4-11/4', roots in fracture-3-vf, matrix 1-vf; few very fine roots; many very fine roots
    Bz—124 to 163 centimeters (48.8 to 64.2 inches); pale brown (10YR 6/3), dark yellowish brown (10YR 3/4), moist; silt loam; strong medium and coarse angular blocky structure; hard, firm, nonsticky, nonplastic; fragments; very slight effervescence; moderately alkaline, pH 8.3, hellige-truog. Lab sample # 91P05813. threads of slt unknown,matrix noncalc, frags/durinodes average 1-11/2' diameter-roots 0-1 vf