IDENTIFIERS

  • Current Taxon Name (Soil Name): Lorack
  • OSD
  • Series Extent
  • User Site ID: S1977CA057003
  • User Pedon ID: 77CA057003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 78P0069
  • NCSS Pedon Lab Data NASIS Record ID - 45079
  • Print Date: 11/21/2024
  • 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: 39.3998871
  • Std. Longitude: -120.6676941
  • Datum: WGS84
  • Township: 18N
  • Range: 12E
  • Section: 30
  • PLSS Details: SE 1/4
  • Location Description: Nevada County, California.
  • State: California
  • County: CA057—Nevada
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains
  • PEDON

  • Current Taxonomic Class: Loamy-skeletal, isotic, frigid Andic Haplohumults
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Lorack
  • Classificaton Date - 2/1/2010
  • Sampled As Information:
  • Soil Name - Lorack
  • Taxonomic Class - Loamy-skeletal, mixed, frigid Ultic Haploxeralf
  • Taxon Kind - series
  • Classificaton Date - 9/1/1977
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


  • SITE

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

    SITE OBSERVATION

  • Observation Date: 9/1/1977 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • 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

    5

    1828

    270

    O1—0 to 3 centimeters (0.0 to 1.2 inches); undecomposed organic matter; fragments. Lab sample # 78P00358
    A1—3 to 10 centimeters (1.2 to 3.9 inches); dark brown (7.5YR 3/4) interior, dark brown (7.5YR 3/2) interior, moist; fine sandy loam; 10 percent silt; weak fine and medium granular structure; soft, very friable, nonsticky, nonplastic; 2.5 very fine roots; 5.5 very fine and fine interstitial pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 78P00359. common very fine roots
    A3—10 to 23 centimeters (3.9 to 9.1 inches); strong brown (7.5YR 5/6) interior, dark brown (7.5YR 3/4) interior, moist; fine sandy loam; 10 percent silt; weak very fine and fine subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 5.5 very fine and fine interstitial and 0.5 very fine tubular pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 78P00360. many very fine and fine roots; common medium and coarse roots
    B1—23 to 52 centimeters (9.1 to 20.5 inches); strong brown (7.5YR 5/6) interior, strong brown (7.5YR 4/6) interior, moist; loam; 20 percent silt; weak very fine and fine subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 2.5 very fine and fine tubular and 5.5 very fine and fine interstitial pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 78P00361. many very fine and fine roots; common medium and coarse roots
    B21—52 to 83 centimeters (20.5 to 32.7 inches); yellowish brown (10YR 5/8) interior, strong brown (7.5YR 5/6) interior, moist; loam; 30 percent silt; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 5.5 very fine and fine interstitial and 2.5 fine tubular pores; black stains on nodules; 10 percent by volume 250-425-600 millimeter mixed fragments and 10 percent by volume 75-162-250 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 78P00362. many very fine and fine roots; common medium and coarse roots
    B22—83 to 118 centimeters (32.7 to 46.5 inches); yellowish brown (10YR 5/8) interior, strong brown (7.5YR 5/8) interior, moist; loam; 45 percent silt; weak medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 2.5 very fine and fine roots and 2.5 medium and coarse roots; 2.5 very fine and fine tubular and 5.5 very fine and fine interstitial pores; black stains on nodules; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; strongly acid, pH 5.5, hellige-truog; clear irregular boundary. Lab sample # 78P00363. Clay films on pores and root channels.; common very fine and fine roots; common medium and coarse roots
    B3t—118 to 145 centimeters (46.5 to 57.1 inches); strong brown (7.5YR 5/8) interior, strong brown (7.5YR 4/6) interior, moist; clay loam; 20 percent silt; moderate fine and medium subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; 2.5 fine and medium roots; 5.5 very fine and fine interstitial and 0.5 fine tubular pores; pressure faces on nodules and 55 percent slickensides (pedogenic) on faces of peds; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 15 percent by volume 2-39-75 millimeter mixed fragments; very strongly acid, pH 5.0, hellige-truog; abrupt wavy boundary. Lab sample # 78P00364. many intersecting slickensides surface features on faces of peds; common fine and medium roots
    C1si—145 to 193 centimeters (57.1 to 76.0 inches); 10YR 7/ (10YR 7/), interior, strong brown (7.5YR 5/8) interior, moist; sandy loam; 70 percent silt; 11 percent strong brown (7.5YR 4/6) fine distinct mottles; massive; very hard, very firm, nonsticky, nonplastic; 2.5 fine and medium roots in cracks; black stains on nodules; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 15 percent by volume 2-39-75 millimeter mixed fragments; extremely acid, pH 4.3, hellige-truog. Lab sample # 78P00365. Cracks are 15 to 30 cm apart. Did not slake.; common fine and medium roots in cracks; common fine distinct 7.5YR46 mottles