IDENTIFIERS

  • Current Taxon Name (Soil Name): Dodon
  • OSD
  • Series Extent
  • User Site ID: S2007MD033002
  • User Pedon ID: S2007MD033002
  • Vegetation Plot ID: S2007MD033002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0329
  • NCSS Pedon Lab Data NASIS Record ID - 19780
  • 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: 38.8486938
  • Std. Longitude: -76.7056656
  • Datum: WGS84
  • Location Description: Sampled from Practice Pit #5, of the Northeast Regional Collegiate Soil Judging Contest (2007), from the MNCPPC tract at Swanson Road in Prince George's County, MD. Described on 10-11-07, sampled on 11-07-07.
  • Map Unit: MnC—Marr-Dodon complex, 5 to 10 percent slopes
  • State: Maryland
  • County: MD033—Prince George's
  • MLRA: 149A—Northern Coastal Plain
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-HAM—Hammonton, New Jersey
  • Non-MLRA Soil Survey Area: MD033—Prince George's County, Maryland
  • 7.5 Minute USGS Quad: 38076-G6—Bristol, Maryland

    • PEDON

  • Describers Name: Earles, Eddie
  • Current Taxonomic Class: Fine-loamy, siliceous, active, mesic Aquic Hapludults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Dodon
  • PSC - 20 to 50 cm.
  • Classificaton Date - 1/12/2016
  • Classifier - Susan Demas
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Dodon
  • Classificaton Date - 10/11/2007
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: concave
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Calvert formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/11/2007 (actual site observation date)
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • 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

    DAGL

    LOAR10

    Dactylis glomerata

    Lolium arundinaceum

    orchardgrass

    tall fescue

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—20

    20—122

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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

    4

    —

    —

    44

    —

    1067

    —

    185

    13

    —

    —

    —

    —

    —

    —

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    —

    —

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    Ap1—0 to 9 centimeters (0.0 to 3.5 inches); brown (10YR 4/3) crushed, pale brown (10YR 6/3) crushed, dry; loam; 11 percent clay; moderate very coarse granular structure; soft, very friable, nonsticky, nonplastic; 1.0 very fine roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout and 1.0 coarse roots throughout; 1.0 medium tubular pores; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 08N02100; dry when described; observed in pit, small
    Ap2—9 to 20 centimeters (3.5 to 7.9 inches); dark yellowish brown (10YR 4/4) broken face, pale brown (10YR 6/3) broken face, dry; loam; 11 percent clay; weak medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 0.1 very fine roots throughout; 3.0 medium tubular and 3.0 fine tubular and 3.0 coarse tubular pores; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 08N02100; very dry when described; observed in pit, small
    Bt1—20 to 61 centimeters (7.9 to 24.0 inches); dark yellowish brown (10YR 4/6) broken face clay loam; 28 percent clay; strong medium prismatic parts to strong medium subangular blocky structure; hard, friable, very sticky, moderately plastic; 0.1 very fine roots in cracks; 3.0 medium tubular and 3.0 fine tubular and 3.0 coarse tubular pores; 30 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 2 percent medium irregular light yellowish brown (10YR 6/4), moist, iron depletions in matrix; fragments; moderately acid, pH 6.0, hellige-truog; gradual wavy boundary. Lab sample # 08N02101; very dry when described; observed in pit, small. discontinuous - phpvsfiid 379165; discontinuous - phpvsfiid 379165
    Bt2—61 to 97 centimeters (24.0 to 38.2 inches); yellowish brown (10YR 5/6) broken face loam; 20 percent clay; strong medium subangular blocky structure; hard, friable, moderately sticky, slightly plastic; 0.1 very fine roots throughout; 2.0 fine tubular pores; 30 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 2 percent fine irregular yellowish red (5YR 4/6), moist, masses of oxidized iron in matrix and 5 percent coarse irregular light brownish gray (10YR 6/2), moist, iron depletions in matrix; 1 percent by volume nonflat well rounded ? to 50-? millimeter quartzite fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # 08N02102; dry when described; observed in pit, small. discontinuous - phpvsfiid 379166; discontinuous - phpvsfiid 379166
    Bt3—97 to 122 centimeters (38.2 to 48.0 inches); 35 percent light brownish gray (10YR 6/2) broken face and 30 percent strong brown (7.5YR 5/6) broken face and 30 percent yellowish brown (10YR 5/6) broken face loam; 20 percent clay; weak very coarse subangular blocky structure; hard, very friable, moderately sticky, moderately plastic; 0.1 very fine roots throughout; 3.0 very fine tubular and 1.0 coarse tubular pores; 15 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 5 percent medium irregular red (2.5YR 4/6), moist, masses of oxidized iron in matrix; fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # 08N02103; dry when described; observed in pit, small. discontinuous - phpvsfiid 379167; discontinuous - phpvsfiid 379167
    BCt—122 to 163 centimeters (48.0 to 64.2 inches); 30 percent dark yellowish brown (10YR 4/6) broken face and 30 percent light yellowish brown (2.5Y 6/4) broken face and 20 percent brownish yellow (10YR 6/6) broken face and 15 percent light brownish gray (2.5Y 6/2) broken face loam; 16 percent clay; weak very coarse prismatic structure; slightly hard, very friable, very sticky, slightly plastic; 0.5 fine tubular pores; 10 percent prominent dark yellowish brown (10YR 4/6), moist, clay films on top faces of peds; 5 percent coarse irregular yellowish red (5YR 4/6), moist, masses of oxidized iron in matrix; fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # 08N02104; moderately dry when described; observed in pit, small. patchy - phpvsfiid 379168; patchy - phpvsfiid 379168