IDENTIFIERS

  • Current Taxon Name (Soil Name): TEHAMA
  • OSD
  • Series Extent
  • User Site ID: S1964CA113018
  • User Pedon ID: S1964CA113018
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2863
  • NCSS Pedon Lab Data NASIS Record ID - 37442
  • Print Date: 5/19/2024

    • 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: 38.8597221
  • Std. Longitude: -121.9591675
  • Datum: WGS84
  • Township: 12N
  • Range: 1W
  • Section: 27
  • PLSS Details: A pit located about .2 miles west of the intersection of Roads 89B and 8, 50 feet south of Road 8 in the northwest corner of the SE1/4
  • Location Description: Area located about 2 miles south of Dunnigan.
  • State: California
  • County: CA113—Yolo
  • MLRA: 17—Sacramento and San Joaquin Valleys
  • Non-MLRA Soil Survey Area: CA113—Yolo County, California

    • PEDON

  • Describers Name: G. J. Staidl.
  • Current Taxonomic Class: Fine-loamy, mixed, thermic Typic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 18
  • Correlated Information:
  • Soil Name - TEHAMA
  • PSC - 38 to 88 cm.
  • Classificaton Date - 7/16/2007
  • Sampled As Information:
  • Soil Name - Tehama
  • Classificaton Date - 9/30/1964
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/30/1964 (actual site observation date)
  • Air Photo ID: ABB-42T91
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    1

    —

    —

    20

    —

    381

    —

    —

    16.1

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    —

    —

    —

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    Ap—0 to 25 centimeters (0.0 to 9.8 inches); brown (10YR 5/3), brown (10YR 4/3), moist; loam; massive parts to platy; hard when dry, friable, nonsticky, slightly plastic; fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 40A22593. The lower portion of the horizon has developed some platy structure.
    B1—25 to 38 centimeters (9.8 to 15.0 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay loam; moderate coarse prismatic structure; very hard, friable, slightly sticky, moderately plastic; 0.1 very fine roots; 21.0 very fine tubular and 0.5 fine tubular pores; 30 percent clay films on faces of peds and in pores; fragments; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # 40A22594
    B21t—38 to 74 centimeters (15.0 to 29.1 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 3/4), moist; clay; moderate coarse prismatic structure; extremely hard, firm, moderately sticky, very plastic; 0.1 very fine roots; 21.0 very fine tubular pores; 75 percent clay films on faces of peds and in pores; fragments; slightly acid, pH 6.5, hellige-truog; gradual smooth boundary. Lab sample # 40A22595
    B22t—74 to 102 centimeters (29.1 to 40.2 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 3/4), moist; clay; moderate coarse angular blocky structure; extremely hard, firm, moderately sticky, very plastic; 21.0 very fine interstitial pores; 75 percent clay films on faces of peds and in pores and 75 percent clay bridges between sand grains; fragments; slightly alkaline, pH 7.5, hellige-truog; clear smooth boundary. Lab sample # 40A22596. The difference in structure of the B22t as compared to the B21t is probably due to the variation in moisture. The structure of the B22t is observable in place but broke out to moderate coarse angular blocky structure.
    B31t—102 to 135 centimeters (40.2 to 53.1 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; clay loam; weak medium angular blocky structure; very hard, firm, slightly sticky, moderately plastic; 21.0 very fine interstitial pores; 30 percent clay bridges between sand grains and 30 percent clay films on faces of peds and in pores; fragments; moderately alkaline, pH 8.0, hellige-truog; diffuse boundary. Lab sample # 40A22597. In the B31 lenses of gravel varying in thickness from 1/4 to 3 inches.
    B32t—135 to 160 centimeters (53.1 to 63.0 inches); light yellowish brown (2.5Y 6/4), dark yellowish brown (10YR 4/4), moist; gravelly sandy clay loam; weak medium angular blocky structure; very hard, firm, moderately sticky, slightly plastic; 21.0 very fine interstitial and tubular pores; 30 percent clay films on faces of peds and in pores and 30 percent clay bridges between sand grains; fragments; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 40A22598
    C1—160 to 191 centimeters (63.0 to 75.2 inches); light yellowish brown (2.5Y 6/4), olive brown (2.5Y 4/4), moist; sandy loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine tubular pores; 10 percent clay films in root channels and/or pores; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary. Lab sample # 40A22599
    IIC2—191 centimeters (75.2 inches); loamy fine sand; single grain; soft, loose, nonsticky, nonplastic; 21.0 very fine interstitial pores; fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 40A22600