IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: S1987MO121031
  • User Pedon ID: 1987MO121031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 87P0776
  • NCSS Pedon Lab Data NASIS Record ID - 60071
  • Print Date: 11/12/2024

    • 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: 39.9480553
  • Std. Longitude: -92.7755585
  • Datum: WGS84
  • Township: 59N
  • Range: 17W
  • Section: 3
  • PLSS Details: 5200 feet S and 5150 feet E of the NW corner
  • Location Description: 50 yards N of fence and 34 yards W of tree.
  • State: Missouri
  • County: MO121—Macon
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: FAO HJF MLC
  • Current Taxonomic Class: Fine, smectitic, mesic Aquertic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 31
  • Correlated Information:
  • Soil Name - Armstrong
  • PSC - 18 to 68 cm.
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Armstrong
  • Taxonomic Class - Fine, montmorillonitic, mesic Aquollic Hapludalf
  • Taxon Kind - series
  • Classificaton Date - 9/1/1987
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from mixed and/or loess derived from mixed and/or till derived from mixed
  • Landscape: upland
  • Landform: upland slope
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Shape Down: convex
  • Runoff: low
  • Drainage Class: moderately well
  • Flooding: frequent flooding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1987 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    0—18

    18—99

    —-

    —-
    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

    12

    —

    —

    288

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap1—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2) interior, dry; loam; weak very fine granular structure; very friable; 5.5 very fine roots throughout; fragments; neutral, pH 7.0, hellige-truog; abrupt wavy boundary. Lab sample # 87P04223; moist when described;. Pebbles noted in this horizon. The material in this horizon is colluvial in origin.; many very fine roots throughout
    2Ap2—10 to 21 centimeters (3.9 to 8.3 inches); very dark gray (10YR 3/1), dark grayish brown (10YR 4/2), dry; clay loam; 1 percent strong brown (7.5YR 5/6) fine prominent mottles; weak medium subangular blocky, and weak fine granular structure; friable; 5.5 very fine roots throughout; 55 percent distinct , moist, clay films on faces of peds; fragments; neutral, pH 7.0, hellige-truog; abrupt broken boundary. Lab sample # 87P04224; moist when described;. Pebbles noted. This horizon is truncated by the Ap1.; many clay films surface features on faces of peds; many very fine roots throughout; few fine prominent 7.5YR56 mottles; continuous - phpvsfiid 222462; continuous - phpvsfiid 222462
    3Bt1—21 to 32 centimeters (8.3 to 12.6 inches); strong brown (7.5YR 5/6) clay; 1 percent very dark gray (10YR 3/1) fine prominent and 11 percent red (2.5YR 4/6) fine prominent mottles; weak very fine subangular blocky structure; friable; 2.5 very fine roots throughout; 55 percent prominent , moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # 87P04225; moist when described;. Mixing of surface meterial in cracks.; many clay films surface features on faces of peds; common very fine roots throughout; common fine prominent 2.5YR46 mottles; few fine prominent 10YR31 mottles; continuous - phpvsfiid 222463; continuous - phpvsfiid 222463
    3Bt2—32 to 52 centimeters (12.6 to 20.5 inches); grayish brown (10YR 5/2) clay; 11 percent red (2.5YR 4/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate very fine and fine angular blocky structure; friable; 0.5 very fine roots throughout; 15 percent prominent , moist, nonintersecting slickensides throughout and 37 percent distinct , moist, pressure faces throughout and 55 percent prominent , moist, clay films on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # 87P04226; moist when described;. Mixing of surface material in cracks.; few nonintersecting slickensides surface features throughout; common pressure faces surface features throughout; many clay films surface features on faces of peds; few very fine roots throughout; common fine prominent 2.5YR46 mottles; common fine prominent 7.5YR58 mottles; continuous - phpvsfiid 222464; continuous - phpvsfiid 222465; continuous - phpvsfiid 222466; continuous - phpvsfiid 222464; continuous - phpvsfiid 222465; continuous - phpvsfiid 222466
    3Bt3—52 to 80 centimeters (20.5 to 31.5 inches); yellowish brown (10YR 5/4) silty clay loam; 11 percent light brownish gray (10YR 6/2) medium prominent and 11 percent medium prominent mottles; weak fine angular blocky structure; firm; 0.5 very fine roots throughout; 55 percent prominent , moist, clay films on faces of peds; 30 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # 87P04227; moist when described;. Many fine manganese concentrations. 39% clay estimate and 15% sand estimate.; many fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few very fine roots throughout; common medium prominent 10YR62 mottles; common medium prominent mottles; continuous - phpvsfiid 222467; continuous - phpvsfiid 222467
    3Bt4—80 to 99 centimeters (31.5 to 39.0 inches); yellowish brown (10YR 5/6) clay; 1 percent light brownish gray (10YR 6/2) fine prominent mottles; weak medium angular blocky structure; very firm; 0.1 very fine roots throughout; 55 percent prominent , moist, clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 87P04228; moist when described;. few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; very few very fine roots throughout; few fine prominent 10YR62 mottles; continuous - phpvsfiid 222468; continuous - phpvsfiid 222468
    3C—99 to 160 centimeters (39.0 to 63.0 inches); yellowish brown (10YR 5/6) clay loam; 1 percent light brownish gray (10YR 6/2) fine prominent mottles; massive; very firm; 11 percent spherical carbonate masses; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog. Lab sample # 87P04229; moist when described;. This horizon was split for sampling at 99 to 130 cm sample No. 87P4229; 99 to 160 cm sample No. 87P4230. There were three descriptions made in this same pedon and one may be used as a typical pedon for Macon County.; common fine to coarse soft masses of carbonate concentrations; few fine prominent 10YR62 mottles