IDENTIFIERS

  • Current Taxon Name (Soil Name): Annapolis
  • OSD
  • Series Extent
  • User Site ID: S2016MD003025
  • User Pedon ID: S2016MD003025
  • User Site Association ID: NEON_RO3_SERC
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 16N0814
  • User Project ID: SERC_002_NEON
  • Project Name: Smithsonian Environmental Research Center
  • Print Date: 12/9/2025

    • 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: 38.8861917
  • Std. Longitude: -76.5516667
  • Datum: WGS84
  • Location Description: 11.7;130;20x20 SW marker
  • Map Unit: AsC—Annapolis fine sandy loam, 5 to 10 percent slopes
  • Country: US—United States
  • State: Maryland
  • County: MD003—Anne Arundel
  • MLRA: 149A—Northern Coastal Plain
  • Regional Office: SE—Southeast
  • MLRA Soil Survey Area: NE-HAM—Hammonton, New Jersey
  • Non-MLRA Soil Survey Area: MD003—Anne Arundel County, Maryland
  • 7.5 Minute USGS Quad: 38076-H5—South River, Maryland

    • PEDON

  • Describers Name: GT, PK, CF, DS, MV, DV, BM, RT
  • Current Taxonomic Class: Fine-loamy, glauconitic, mesic Typic Hapludults
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: ecological site data
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Annapolis
  • PSC - 11 to 25 cm.
  • Classificaton Date - 3/15/2018
  • Classifier - Rob Tunstead
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Annapolis
  • Taxonomic Class - Fine-loamy, glauconitic, mesic Typic Hapludults
  • Taxon Kind - series
  • PSC - 11 to 25 cm.
  • Classificaton Date - 4/14/2016
  • Classifier - David Verdone
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: loamy glauconitic fluviomarine deposits
  • Landscape: upland, coastal plain
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: negligible
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no
  • Plot #: 25
  • RaCA Information:
  • RaCA Site ID - SERC_025
  • DSP Plot ID - SW
  • Plot Baseline Azimuth - 130
  • Plot Baseline Length - 12
  • Plot Width - 20
  • Plot/Site Set Up By - Center of pit
  • Plot or Site Recorder - David Verdone

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/4/2016 (actual site observation date)
  • Data Collector: Phil King; Greg Taylor
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 10
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Ap

    Bt

    BCt

    BCj

    Cj

    0

    11

    25

    48

    73

    11

    25

    48

    73

    100

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Ap

    Bt

    BCt

    BCj

    Cj

    0

    11

    25

    48

    73

    11

    25

    48

    73

    100

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Ap

    Bt

    BCt

    BCj

    Cj

    0

    11

    25

    48

    73

    11

    25

    48

    73

    100

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

    ochric epipedon

    argillic horizon

    redox concentrations

    0—11

    11—25

    48—100

    —11—

    —14—

    —52—
    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

    17

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    17

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    50

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    Ap—0 to 11 centimeters (0.0 to 4.3 inches); very dark grayish brown (10YR 3/2), brown (10YR 5/3), dry; loam; 14 percent clay; strong fine granular, and strong medium granular structure; friable, nonsticky, nonplastic; many very fine roots throughout and common medium roots throughout and many fine roots throughout; many (6.0) medium tubular and many (6.0) fine tubular pores; 10 percent clay films on vertical faces of peds; fragments; slightly acid, pH 6.2, unspecified; clear smooth boundary. Lab sample # 16N03620; moist when described; observed in pit, small
    Bt—11 to 25 centimeters (4.3 to 9.8 inches); dark grayish brown (10YR 4/2) clay loam; 30 percent clay; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; common medium roots throughout and common fine roots throughout; common (5.0) fine tubular and common (1.0) coarse tubular pores; 20 percent clay films on all faces of peds; 25 percent glauconite pellets throughout; fragments; moderately acid, pH 5.6, unspecified; clear smooth boundary. Lab sample # 16N03621; moist when described; observed in pit, small
    BCt—25 to 48 centimeters (9.8 to 18.9 inches); olive brown (2.5Y 4/3) fine sandy loam; weak very coarse prismatic parts to weak coarse single grain; friable, nonsticky, nonplastic; common fine roots throughout and few coarse roots throughout; common (1.0) coarse tubular pores; 10 percent clay films on vertical faces of peds; 60 percent glauconite pellets throughout; fragments; strongly acid, pH 5.5, unspecified; clear smooth boundary. Lab sample # 16N03622; moist when described; observed in pit, small
    BCj—48 to 73 centimeters (18.9 to 28.7 inches); variegated 50 percent very dark grayish brown (2.5Y 3/2) and 30 percent olive brown (2.5Y 4/3) and 20 percent brown (7.5YR 4/4) fine sandy loam; structureless massive parts to single grain; friable, nonsticky, nonplastic; common fine roots throughout; 7 percent prominent irregular noncoherent cemented jarosite masses throughout; 60 percent glauconite pellets throughout; fragments; strongly acid, pH 5.4, unspecified; clear wavy boundary. Lab sample # 16N03623; moist when described; observed in pit, small
    Cj—73 to 100 centimeters (28.7 to 39.4 inches); 75 percent very dark gray (2.5Y 3/1) and 15 percent olive brown (2.5Y 4/3) and 10 percent brown (7.5YR 4/4) fine sandy loam; structureless massive parts to single grain; friable, nonsticky, nonplastic; common fine roots throughout; 30 percent prominent irregular noncoherent cemented jarosite masses throughout; 70 percent glauconite pellets throughout; fragments; strongly acid, pH 5.2, unspecified. Lab sample # 16N03624; moist when described; observed in pit, small