IDENTIFIERS

  • Current Taxon Name (Soil Name): Hobson
  • OSD
  • Series Extent
  • User Site ID: S1959MO065004
  • User Pedon ID: S1959MO065004
  • Vegetation Plot ID: S1959MO065004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2718
  • Print Date: 5/20/2024

    • 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: 37.7208939
  • Std. Longitude: -91.7104263
  • Datum: WGS84
  • Township: T35N
  • Range: R7W
  • Section: 28
  • PLSS Details: Northeast corner of southwest quarter of southwest quarter
  • State: Missouri
  • County: MO065—Dent
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO065—Dent County, Missouri
  • 7.5 Minute USGS Quad: 37091-F6—Anutt, Missouri

    • PEDON

  • Describers Name: J. S. Allen, R. L. Juve, John Van Dine, and F. J. Carlisle.
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 4
  • Sampled As Information:
  • Soil Name - Hobson
  • Classificaton Date - 10/8/1959
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from sandstone and/or limestone
  • Slope Shape Across: convex
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/8/1959 (actual site observation date)
  • Air Photo ID: BLG-5p122
  • 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

    LESPE

    Lespedeza

    lespedeza

    —

    —

    —
    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

    —

    —

    —

    —

    315

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; loam; weak medium platy structure; friable; fragments; very strongly acid, pH 5.0, bromcresol green; abrupt boundary. Lab sample # 40A21299
    B1—13 to 20 centimeters (5.1 to 7.9 inches); yellowish brown (10YR 5/4), light yellowish brown (10YR 6/4), dry; loam; weak fine angular blocky structure; friable; fragments; strongly acid, pH 5.4, chlorophenol red; clear boundary. Lab sample # 40A21300. faint patches of lower chroma; common soft spherical oxide concretions <1mm. diameter.
    B21—20 to 30 centimeters (7.9 to 11.8 inches); brown (7.5YR 4/4) clay loam; weak fine angular blocky structure; firm; fragments; strongly acid, pH 5.4, chlorophenol red; gradual boundary. Lab sample # 40A21301
    B22—30 to 43 centimeters (11.8 to 16.9 inches); yellowish brown (10YR 5/4) clay loam; weak fine and medium angular blocky structure; firm; brown (7.5YR 4/4) clay films; fragments; strongly acid, pH 5.2, chlorophenol red; clear boundary. Lab sample # 40A21302. slightly higher clay content than the horizon above.; discontinuous - phpvsfiid 176722; discontinuous - phpvsfiid 176722
    B23—43 to 51 centimeters (16.9 to 20.1 inches); brown (10YR 4/3) loam; moderate medium subangular blocky, and angular blocky structure; firm; brown (10YR 5/3) silt coats on faces of peds; fragments; very strongly acid, pH 5.0, bromcresol green; clear irregular boundary. Lab sample # 40A21303. Funnel-shaped projections of this horizon extend into the fragipan below. These projections are spaced from 1 to 3 feet apart and range from 3 to 18 inches in width at the top. In the 8-foot long face of the pit two of these tongues extend through the subjacent horizon.; discontinuous - phpvsfiid 176723; discontinuous - phpvsfiid 176723
    IIA'X1—51 to 81 centimeters (20.1 to 31.9 inches); loam; yellowish brown (10YR 5/4) and yellowish brown (10YR 5/6) and light brownish gray (10YR 6/2) mottles; massive; extremely firm*; dark yellowish brown (10YR 3/4) and 75 percent dark brown (10YR 3/3) clay films on faces of peds; fragments; very strongly acid, pH 4.8, bromcresol green; clear boundary. Lab sample # 40A21304. the pattern of the 10YR 6/2 mottling is variable within this horizon, ranging from fine faint mottling to distinct vertical seams and irregular patches 8 to 10 inches across.
    IIA'X2—81 to 97 centimeters (31.9 to 38.2 inches); yellowish brown (10YR 5/4) and light yellowish brown (10YR 6/4) sandy loam; massive; extremely firm*; distinct dark yellowish brown (10YR 4/4) clay films in root channels and/or pores; fragments; very strongly acid, pH 5.0, bromcresol green; gradual boundary. Lab sample # 40A21305. estimated 70 percent rock fragments greater than 3/4-inch diameter.
    IIA'X3—97 to 119 centimeters (38.2 to 46.9 inches); fragments; clear boundary. Lab sample # 40A21306. Similar to horizon above except color is brown to yellowish brown (7.5YR 4/4 to 10YR 5/4) with a few light brownish gray (10YR 6/2) mottles and rock fragments greater than 3/4-inch diameter are estimated to comprise 85 to 90 percent of the material.
    IIB21bt—119 to 155 centimeters (46.9 to 61.0 inches); sandy clay; dark red (10R 3/6) and yellowish brown (10YR 5/8) mottles; weak fine angular blocky structure; firm; distinct brown (7.5YR 4/4) clay films in root channels and/or pores and on faces of peds; fragments; very strongly acid, pH 5.0, bromcresol green; clear boundary. Lab sample # 40A21307
    IIB22bt—155 to 183 centimeters (61.0 to 72.0 inches); clay loam; red (10R 4/6) and dark red (10R 3/6) and light gray (10YR 7/1) mottles; massive; firm; distinct brown (7.5YR 4/4) clay films; fragments; strongly acid, pH 5.2, chlorophenol red. Lab sample # 40A21308. clay films line tubular pores and cleavage faces; the red color is that of decomposed sandstone; the light gray material has sharp boundaries, occurs in a roughly rectangular horizontal and vertical pattern, and appears to be the product of rock material weathered in place. Some dark gray clay seams occur that are lined with light gray (10YR 7/1) and then a band of yellowish brown between the light gray and the red matrix color.