IDENTIFIERS

  • Current Taxon Name (Soil Name): Humboldt
  • OSD
  • Series Extent
  • User Site ID: 1956NV027003
  • User Pedon ID: 1956NV027003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3231
  • NCSS Pedon Lab Data NASIS Record ID - 38360
  • Print Date: 4/24/2025

    • 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: 40.1722222
  • Std. Longitude: -118.4755556
  • Datum: WGS84
  • Township: 27N
  • Range: 31E
  • Section: 35
  • PLSS Details: approximately 300 feet E and 180 feet S of the apparent NW sec. corner of sec. 25, located in the NW1/4 NW1/4
  • Location Description: 0.5 mile south on Broadway from the SCS office, E 100 paces and S 60 paces to site located on the Circle L Ranch. The owner is a cooperator with the Big Meadow SCD
  • Map Unit: Hr—HUMBOLDT SILTY CLAY, DRAINED
  • State: Nevada
  • County: NV027—Pershing
  • MLRA: 27—Fallon-Lovelock Area
  • Non-MLRA Soil Survey Area: NV602—Lovelock Area, Nevada, Parts of Pershing and Churchill Counties
  • 7.5 Minute USGS Quad: 40118-B4—Lovelock, Nevada

    • PEDON

  • Describers Name: J. Kubota and L. N. Langan
  • Current Taxonomic Class: Fine, smectitic, calcareous, mesic Fluvaquentic Endoaquolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Humboldt (flagged as OSD)
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/31/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - aquic
  • Moisture Subclass - xeric
  • Sampled As Information:
  • Soil Name - Humboldt
  • Classificaton Date - 7/16/1956
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: silty and clayey alluvium
  • Landform: flood plain
  • Runoff: very low
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/16/1956 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    endosaturation

    0—25

    36—117

    —-

    —-
    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

    —

    —

    —

    1221

    —

    102

    —

    —

    11.1

    25

    -2.2

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1), black (10YR 2/1), dry; silty clay; weak medium subangular blocky structure; hard, firm, very sticky, very plastic; many (5.0) very fine roots and many (5.0) medium roots and many (5.0) fine roots; many (3.0) very fine interstitial and few (1.0) fine tubular pores; 21 percent worm casts; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear smooth boundary. Lab sample # 40A25239
    A—20 to 36 centimeters (7.9 to 14.2 inches); very dark gray (10YR 3/1), black (10YR 2/1), dry; silty clay; moderate fine subangular blocky structure; hard, firm, very sticky, very plastic; many (5.0) very fine roots and many (5.0) medium roots and many (5.0) fine roots; many (3.0) very fine interstitial and common (2.0) fine tubular pores; 21 percent worm casts; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear irregular boundary. Lab sample # 40A25240
    Bk1—36 to 46 centimeters (14.2 to 18.1 inches); dark grayish brown (2.5Y 4/2), very dark grayish brown (2.5Y 3/2), dry; silty clay loam; strong fine subangular blocky, and strong medium subangular blocky structure; very hard, firm, very sticky, very plastic; common (4.0) fine roots; common (2.0) fine tubular pores; on faces of peds; 10 percent fine dark brown (7.5YR 3/4), moist, masses of oxidized iron; 2 percent fine moderately coherent cemented carbonate concretions and 2 percent fine carbonate masses on faces of peds and 2 percent medium carbonate masses on faces of peds; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear wavy boundary. Lab sample # 40A25241
    Bk2—46 to 61 centimeters (18.1 to 24.0 inches);, very dark gray (10YR 3/1), dry; silty clay; strong fine subangular blocky, and strong fine angular blocky structure; very hard, firm, very sticky, very plastic; common (4.0) medium roots and common (4.0) fine roots; many (3.0) very fine tubular and few (1.0) fine tubular pores; on faces of peds; 2 percent fine moderately coherent cemented carbonate concretions; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear smooth boundary. Lab sample # 40A25242
    Bg—61 to 84 centimeters (24.0 to 33.1 inches); very dark gray (10YR 3/1), black (10YR 2/1), dry; clay; 3 percent dark brown (10YR 3/3) fine faint mottles; weak medium subangular blocky, and weak coarse subangular blocky structure; hard, friable, very sticky, very plastic; few (2.0) medium roots and common (4.0) fine roots; few (1.0) fine tubular pores; clay films on faces of peds; 10 percent fine distinct dark brown (7.5YR 3/3), moist, masses of oxidized iron on faces of peds; fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 40A25243
    C1—84 to 97 centimeters (33.1 to 38.2 inches); dark grayish brown (2.5Y 4/2), very dark grayish brown (2.5Y 3/2), dry; silty clay loam; moderate fine subangular blocky structure; hard, friable, moderately sticky, moderately plastic; common (4.0) fine roots; common (2.0) very fine tubular and common (2.0) fine tubular pores; clay films on faces of peds and on faces of peds and in pores and in root channels and/or pores; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear smooth boundary. Lab sample # 40A25244
    C2—97 to 117 centimeters (38.2 to 46.1 inches);, dark grayish brown (2.5Y 4/2), dry; silt loam; weak medium subangular blocky, and weak coarse subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common (4.0) fine roots; common (2.0) very fine tubular and common (2.0) fine tubular pores; 2 percent distinct organic stains on all faces of peds; 2 percent distinct very dark gray (10YR 3/1), moist, iron depletions; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue; clear smooth boundary. Lab sample # 40A25245
    C3—117 to 130 centimeters (46.1 to 51.2 inches); dark grayish brown (2.5Y 4/2), very dark grayish brown (2.5Y 3/2), dry; silt loam; weak medium subangular blocky, and weak coarse subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common (4.0) fine roots; common (2.0) very fine tubular and common (2.0) fine tubular pores; clay films on faces of peds and in pores; fragments; strong effervescence; strongly alkaline, pH 8.6, thymol-blue; clear smooth boundary. Lab sample # 40A25246
    C4—130 to 155 centimeters (51.2 to 61.0 inches);, dark grayish brown (2.5Y 4/2), dry; silt loam; 1 percent dark grayish brown (10YR 4/2) and 3 percent dark grayish brown (10YR 4/2) fine and medium faint mottles; weak fine subangular blocky, and weak medium subangular blocky, and weak coarse subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common (4.0) fine roots; many (3.0) very fine tubular and many (3.0) fine tubular pores; clay films on faces of peds and in pores and on faces of peds; fragments; strong effervescence; moderately alkaline, pH 8.4, thymol-blue. Lab sample # 40A25247