IDENTIFIERS

  • Current Taxon Name (Soil Name): ORNBAUN
  • OSD
  • Series Extent
  • User Site ID: S1980CA045018
  • User Pedon ID: S1980CA045018
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 80P0449
  • NCSS Pedon Lab Data NASIS Record ID - 48225
  • 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: 38.9883347
  • Std. Longitude: -123.3705521
  • Datum: WGS84
  • Township: 13N
  • Range: 14W
  • Section: 14
  • PLSS Details: 7 meters south and 7 meters west of the northeast corner, SE 1/4, NW 1/4
  • State: California
  • County: CA045—Mendocino
  • MLRA: 4B—Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA694—Mendocino County, Western Part, California

    • PEDON

  • Describers Name: T. D. Thorson and W. D. Broderson
  • Current Taxonomic Class: Fine-loamy, mixed, isomesic Ultic Haplustalfs
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 18
  • Correlated Information:
  • Soil Name - ORNBAUN
  • PSC - 8 to 58 cm.
  • Classificaton Date - 7/26/2006
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Ornbaun
  • Taxonomic Class - Fine-loamy, mixed, isomesic Ultic Haplustalf
  • Taxon Kind - series
  • Classificaton Date - 6/1/1980
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from sandstone
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Shape Down: convex
  • Drainage Class: well
  • Bedrock: strongly coherent sandstone, unspecified
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1980 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    50

    —

    —

    243

    —

    270

    381

    —

    —

    12

    16

    10

    —

    —

    —

    —

    —

    —

    —

    —
    O1—0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; fragments.
    A1—2 to 10 centimeters (0.8 to 3.9 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 3/4), moist; loam; weak fine subangular blocky, and weak medium granular structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots and 3.0 fine roots and 0.5 coarse roots; 0.5 very fine and fine interstitial and 0.5 fine tubular pores; fragments; moderately acid, pH 5.6; clear wavy boundary. Lab sample # 80P02469
    Bt1—10 to 25 centimeters (3.9 to 9.8 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4), moist; loam; weak fine angular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots and 0.5 medium and coarse roots and 3.0 fine roots; 0.5 very fine interstitial and 3.0 fine interstitial and 3.0 fine tubular pores; 10 percent thin clay films between sand grains; fragments; strongly acid, pH 5.3; clear wavy boundary. Lab sample # 80P02470
    Bt21—25 to 66 centimeters (9.8 to 26.0 inches); variegated light brown (7.5YR 6/4), yellowish red (5YR 5/6) and strong brown (7.5YR 5/6), moist; gravelly clay loam; moderate fine and medium angular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots and 0.5 medium and coarse roots and 3.0 fine roots; 0.5 very fine interstitial and 3.0 fine interstitial and 3.0 fine tubular pores; 30 percent thick clay films on all faces of peds and 30 percent thick clay films on surfaces along pores; fragments; strongly acid, pH 5.3; gradual wavy boundary. Lab sample # 80P02471
    Bt22—66 to 104 centimeters (26.0 to 40.9 inches); variegated light brown (7.5YR 6/4), strong brown (7.5YR 5/6) and yellowish red (5YR 5/6), moist; gravelly clay loam; weak fine and medium angular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots and 3.0 fine roots and 0.5 coarse roots; 0.5 very fine and fine interstitial pores; 30 percent thick clay films on surfaces along pores and 30 percent thick clay films on all faces of peds; 15 percent by volume 2-?-50 millimeter unspecified fragments; strongly acid, pH 5.3; gradual wavy boundary. Lab sample # 80P02472
    Bt31—104 to 129 centimeters (40.9 to 50.8 inches); variegated pink (7.5YR 7/4), yellowish red (5YR 4/6) and strong brown (7.5YR 5/6) and reddish yellow (5YR 6/6), moist; gravelly clay; weak fine angular blocky structure; very hard, very firm, moderately sticky, very plastic; 0.5 medium and coarse roots and 0.5 fine roots; 0.5 very fine tubular pores; 75 percent thick clay films on all faces of peds; 35 percent by volume 2-?-50 millimeter unspecified fragments; strongly acid, pH 5.3; clear irregular boundary. Lab sample # 80P02473
    Bt32—129 to 152 centimeters (50.8 to 59.8 inches); variegated pink (7.5YR 7/4), yellowish red (5YR 4/6) and strong brown (7.5YR 5/6) and reddish yellow (5YR 6/6), moist; clay; weak fine angular blocky structure; very hard, very firm, moderately sticky, very plastic; 0.5 medium and coarse roots and 0.5 fine roots; 0.5 very fine tubular pores; 75 percent thick clay films on all faces of peds; 10 percent by volume 2-?-76 millimeter unspecified fragments; strongly acid, pH 5.3; abrupt irregular boundary. Lab sample # 80P02474
    R—152 to 157 centimeters (59.8 to 61.8 inches); bedrock; fragments. Lab sample # 80P02475. Rock does not slake in water.