IDENTIFIERS

  • Current Taxon Name (Soil Name): Plumgrove
  • OSD
  • Series Extent
  • User Site ID: S12TX2911034
  • User Pedon ID: S12TX2911034
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 12N8319
  • NCSS Pedon Lab Data NASIS Record ID - 73214
  • Print Date: 2/16/2025

    • 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: 30.3665583
  • Std. Longitude: -94.9969444
  • Datum: WGS84
  • Location Description: Liberty County, Texas; from the intersection of Texas Highway 105 and County Road 2212; east 0.75 mile on County Road 2212; 185 feet north.
  • Country: US—United States
  • State: Texas
  • County: TX291—Liberty
  • MLRA: 152B—Western Gulf Coast Flatwoods
  • Non-MLRA Soil Survey Area: TX291—Liberty County, Texas
  • 7.5 Minute USGS Quad: 30094-C8—Tarkington Prairie, Texas

    • PEDON

  • Describers Name: Jon Wiedenfeld
  • Current Taxonomic Class: Fine-silty, siliceous, semiactive, thermic Oxyaquic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Correlated Information:
  • Soil Name - Plumgrove (flagged as OSD)
  • PSC - 71 to 121 cm.
  • Classificaton Date - 4/3/2012
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Kirbyville
  • Taxonomic Class - Fine-silty, thermic Oxyaquic Glossudalfs
  • Taxon Kind - series
  • Classificaton Date - 2/7/2012
  • Soil Taxonomic Edition - eleventh edition
  • Moisture SUBClass - oxyaquic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Parent Material: loamy fluviomarine deposits derived from igneous, metamorphic and sedimentary rock
  • Landform: interfluve
  • Geomorphic Component Flats: rise
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/6/2012 (actual site observation date)
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion sheet
    • 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

    E

    Bt/E1

    Bt/E2

    Btg/E

    0

    12

    71

    105

    157

    12

    71

    105

    157

    203

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    6.2

    10.3

    20.6

    22.6

    24.8

    —

    —

    —

    —

    —

    58.5

    54.8

    43.7

    48.6

    50

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    35.3

    35

    35.7

    28.8

    25.3

    sieves

    sieves

    sieves

    sieves

    hydrometer

    0.4

    0.6

    0.2

    0.8

    —

    —

    —

    0.2

    0.2

    —

    0.6

    0.6

    0.4

    0.4

    —

    8.1

    9.9

    8.4

    6.7

    —

    26.1

    23.9

    26.5

    20.6

    —

    270 mesh sieve

    270 mesh sieve

    270 mesh sieve

    270 mesh sieve

    —

    sil

    sil

    l

    l

    l

    —

    —

    —

    —

    —

    —

    —

    —

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    5.7

    4.7

    4.7

    4.8

    4.9
    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

    E

    Bt/E1

    Bt/E2

    Btg/E

    0

    12

    71

    105

    157

    12

    71

    105

    157

    203

    —

    —

    —

    —

    —

    —

    —

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    85

    39

    50

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    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

    E

    Bt/E1

    Bt/E2

    Btg/E

    0

    12

    71

    105

    157

    12

    71

    105

    157

    203

    —

    —

    —

    —

    —

    —

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    plinthite

    —

    89 - 160

    - 71 -

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

    ochric epipedon

    episaturation

    glossic horizon

    argillic horizon

    endosaturation

    0—41

    12—41

    41—203

    41—203

    157—203

    —57—

    —77—

    —69—

    —146—

    —43—
    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

    0.8

    —

    —

    43.9

    —

    109

    —

    —

    —

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    Ap—0 to 12 centimeters (0.0 to 4.7 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; silt loam; weak fine subangular blocky structure; slightly hard, very friable; 5.0 medium roots throughout and 8.0 fine roots throughout and 2.0 coarse roots throughout; 4.0 fine interstitial pores; fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.4; clear smooth boundary.; moist when described; observed in pit, small
    E—12 to 71 centimeters (4.7 to 28.0 inches); light yellowish brown (10YR 6/4) silt loam; weak fine subangular blocky structure; slightly hard, very friable; 3.0 medium roots throughout and 5.0 fine roots throughout; 2.0 very fine tubular pores; 5 percent faint dark grayish brown (10YR 4/2), moist, organic stains on all faces of peds; 1 percent fine distinct light brownish gray (10YR 6/2), moist, iron depletions with clear boundaries in matrix surrounding redox concentrations and 3 percent fine distinct dark brown (10YR 3/3), moist, masses of oxidized iron with diffuse boundaries lining pores; fragments; 25 to 35 percent albic tongues (volume percent); noneffervescent, by hcl, 1n; very strongly acid, pH 4.8; clear smooth boundary.; moist when described; observed in pit, small
    Bt/E1—71 to 105 centimeters (28.0 to 41.3 inches); yellowish brown (10YR 5/6) loam; moderate medium angular blocky structure; hard, friable; 1.0 very fine roots throughout; 1.0 very fine tubular pores; 10 percent yellowish brown (10YR 5/6), moist, clay films on all faces of peds; 2 percent medium dark yellowish brown (10YR 3/6), moist, ironstone nodules in matrix and 20 percent coarse faint red (2.5YR 5/8), moist, masses of oxidized iron with sharp boundaries in matrix and 20 percent coarse prominent gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix surrounding redox concentrations; fragments; 20 to 25 percent albic tongues (volume percent); noneffervescent, by hcl, 1n; very strongly acid, pH 5.0; gradual wavy boundary.; moist when described; observed in pit, small
    Bt/E2—105 to 157 centimeters (41.3 to 61.8 inches); brownish yellow (10YR 6/6) loam; moderate medium angular blocky structure; hard, firm; 0.2 very fine roots throughout; 1.0 very fine tubular pores; 15 percent brownish yellow (10YR 6/6), moist, clay films on all faces of peds; 2 percent medium dark yellowish brown (10YR 3/6), moist, ironstone nodules in matrix and 25 percent coarse prominent gray (10YR 6/1), moist, masses of oxidized iron with diffuse boundaries in matrix surrounding redox concentrations and 30 percent coarse prominent red (2.5YR 5/8), moist, masses of oxidized iron with sharp boundaries in matrix; fragments; 15 to 20 percent albic tongues (volume percent); noneffervescent, by hcl, 1n; strongly acid, pH 5.2; gradual wavy boundary.; moist when described; observed in auger, bucket
    Btg/E—157 to 203 centimeters (61.8 to 79.9 inches); light gray (10YR 7/1) loam; moderate coarse subangular blocky structure; hard, firm; 0.2 very fine roots throughout; 1.0 fine tubular pores; 10 percent light yellowish brown (10YR 6/4), moist, clay films; 15 percent coarse prominent gray (N 6/0), moist, iron depletions with clear boundaries on surfaces along pores and 20 percent coarse prominent brownish yellow (10YR 6/6), moist, masses of oxidized iron with diffuse boundaries in matrix surrounding redox concentrations and 25 percent coarse prominent red (2.5YR 4/8), moist, masses of oxidized iron with sharp boundaries in matrix; fragments; 15 to 25 percent albic tongues (volume percent); noneffervescent, by hcl, 1n; moderately acid, pH 5.6.; moist when described; observed in auger, bucket