IDENTIFIERS

  • Current Taxon Name (Soil Name): Portland
  • OSD
  • Series Extent
  • User Site ID: S1960AR003001
  • User Pedon ID: S1960AR003001
  • Vegetation Plot ID: S1960AR003001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A4398
  • NCSS Pedon Lab Data NASIS Record ID - 40561
  • 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: 33.2991676
  • Std. Longitude: -91.5208359
  • Datum: WGS84
  • Location Description: 1.5 miles west of Montrose on Arkansas-U.S. Hwy 82, 300 feet south of highway.
  • State: Arkansas
  • County: AR003—Ashley
  • Non-MLRA Soil Survey Area: AR003—Ashley County, Arkansas

    • PEDON

  • Describers Name: Dr. H.C. Dean, Robert L. Juve, Marvin Lawson
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Portland
  • Classificaton Date - 5/9/1960
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: flood plain
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/9/1960 (actual site observation date)
  • Air Photo ID: CFC-1F-93
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    GOSSY

    Gossypium

    cotton

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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

    2

    —

    —

    38

    —

    0

    1295

    —

    —

    18

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    Ap1—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) silty clay loam; 1 percent grayish brown (10YR 5/2) fine and medium faint and 1 percent yellowish brown (10YR 5/4) fine and medium faint mottles; weak fine angular blocky structure; moderately sticky, moderately plastic; 0.5 coarse roots and 3.0 roots; fragments; very strongly acid, pH 4.5, hellige-truog; abrupt wavy boundary. Lab sample # 40A33562
    Ap2—8 to 20 centimeters (3.1 to 7.9 inches); brown (7.5YR 4/4) clay; 10 percent grayish brown (10YR 5/2) coarse distinct mottles; weak fine angular blocky structure; firm, moderately sticky, moderately plastic; 0.5 coarse roots and 3.0 roots; 0.5 tubular pores; fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # 40A33563
    C1—20 to 46 centimeters (7.9 to 18.1 inches); brown (7.5YR 4/2) clay; 10 percent brown (7.5YR 5/4) coarse faint mottles; strong fine angular blocky structure; very sticky, very plastic; 3.0 fine roots and 0.5 coarse roots; 0.5 tubular pores; clay films and 15 percent nonintersecting slickensides; fragments; strongly acid, pH 5.5, hellige-truog; gradual wavy boundary. Lab sample # 40A33564. apparent clay films may be due to adjustment to pressure or orientation.
    C2—46 to 76 centimeters (18.1 to 29.9 inches); brown (7.5YR 4/4) clay; 10 percent brown (7.5YR 4/2) coarse distinct mottles; moderate angular blocky structure; very sticky, very plastic; 3.0 fine roots; 0.5 tubular pores; 15 percent nonintersecting slickensides and 25 percent clay films; fragments; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 40A33565. clay films may be due to adjustment to pressure or orientation.
    C3—76 to 114 centimeters (29.9 to 44.9 inches); dark reddish brown (5YR 3/3) clay; strong fine angular blocky structure; very sticky, very plastic; 0.5 fine roots; 55 percent nonintersecting slickensides; fragments; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 40A33566
    C4—114 to 165 centimeters (44.9 to 65.0 inches); soft, friable; 0.5 tubular pores; 15 percent black stains and 37 percent clay films on vertical faces of peds; 1 percent carbonate concretions; fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 40A33567. alternating thin layers of silt, silt loam, clay loam, and clay in various shades of red with reddish brown predominant; calcareous; 114-117 cm silt loam, 117-126 cm clay, 126-130 cm silt loam with thin clay lenses, 130-145 cm clay, 145-150 cm silt loam with clay lenses, 150-152 cm clay, 152-165 cm silt loam with few thin clay bands; sample #33567 of the clay layers or strata; sample #33568 of the silty layers or strata.