IDENTIFIERS

  • Current Taxon Name (Soil Name): Weld
  • OSD
  • Series Extent
  • User Site ID: S1994CO121002
  • User Pedon ID: 94CO121002
  • Vegetation Plot ID: S1994CO121002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 95P0010
  • NCSS Pedon Lab Data NASIS Record ID - 67028
  • Print Date: 11/11/2024

    • 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: 39.9642487
  • Std. Longitude: -103.2931366
  • Datum: WGS84
  • State: Colorado
  • County: CO121—Washington
  • MLRA: 67—Central High Plains
  • Non-MLRA Soil Survey Area: CO121—Washington County, Colorado

    • PEDON

  • Describers Name: M. Petersen, John Kimble
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Weld
  • Taxonomic Class - Fine, montmorillonitic Aridic Paleustolls
  • PSC - 9 to 59 cm.
  • Classificaton Date - 8/30/1994
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plains
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/30/1994 (actual site observation date)
  • Air Photo ID: 28
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AGSM

    BOGR2

    BUDA

    CAINH2

    HIPPU

    Agropyron smithii

    Bouteloua gracilis

    Buchloe dactyloides

    Carex inops ssp. heliophila

    Hippuris

    —

    blue grama

    buffalograss

    sun sedge

    mare's-tail

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    mollic epipedon

    argillic horizon

    0—34

    9—57

    —-

    —-
    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

    1

    175

    75

    1498

    —

    346

    380

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 9 centimeters (0.0 to 3.5 inches); brown (10YR 5/3), very dark grayish brown (10YR 3/2) crushed, moist; loam; 17 percent clay; moderate fine granular structure; soft, very friable, slightly sticky, slightly plastic; low toughness; 10.0 very fine and fine roots throughout and 2.0 medium roots throughout; 5.0 very fine to medium high-continuity tubular and 2.0 very fine and fine moderate-continuity interstitial and 3.0 very fine and fine moderate-continuity continuous tubular pores; fragments; noneffervescent; neutral, pH 6.6, hellige-truog; abrupt smooth boundary. Lab sample # 95P00067. 95P0068.
    Bt1—9 to 34 centimeters (3.5 to 13.4 inches); brown (10YR 5/3), dark brown (10YR 3/3) broken face, moist; silty clay loam; 37 percent clay; strong fine and medium prismatic parts to strong fine subangular blocky structure; very hard, firm, very sticky, very plastic; high toughness; 8.0 very fine roots throughout and 0.5 medium roots between peds and 4.0 fine roots throughout; 0.5 very fine to medium low-continuity interstitial and 4.0 very fine and fine moderate-continuity dendritic tubular and 4.0 very fine and fine moderate-continuity tubular pores; 7 percent distinct clay films on faces of peds and in pores; fragments; very slight effervescence, by hcl, unspecified; neutral, pH 7.1, hellige-truog; clear wavy boundary. Lab sample # 95P00069. discontinuous - phpvsfiid 194091; discontinuous - phpvsfiid 194091
    Bt2—34 to 57 centimeters (13.4 to 22.4 inches); brown (10YR 5/3), brown (10YR 4/3) broken face, moist; silty clay loam; 38 percent clay; strong fine prismatic parts to moderate and strong fine subangular blocky structure; very hard, firm, very sticky, very plastic; high toughness; 6.0 very fine and fine roots throughout and 0.5 medium roots between peds; 6.0 very fine and fine moderate-continuity interstitial and tubular and 3.0 very fine low-continuity tubular and 2.0 very fine low-continuity constricted tubular pores; 5 percent distinct clay films on vertical faces of peds and 6 percent distinct clay films in root channels and/or pores; fragments; slight effervescence, by hcl, unspecified; moderately alkaline, pH 7.9, hellige-truog; gradual wavy boundary. Lab sample # 95P00070. continuous - phpvsfiid 194092; discontinuous - phpvsfiid 194093; continuous - phpvsfiid 194092; discontinuous - phpvsfiid 194093
    Bk—57 to 87 centimeters (22.4 to 34.3 inches); light gray (10YR 7/2) exterior, brown (10YR 5/3) crushed, moist; silt loam; 22 percent clay; weak coarse prismatic parts to moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; medium toughness; 5.0 very fine and fine roots throughout; 5.0 very fine to medium moderate-continuity tubular and 4.0 very fine and fine low-continuity interstitial and tubular and 6.0 fine and medium moderate-continuity vesicular and tubular pores; 6 percent distinct carbonate coats on faces of peds and in pores; 4 percent fine and medium irregular lime masses throughout and 10 percent medium cylindrical carbonate nodules throughout; fragments; 4 percent krotovinas (volume percent); violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog; clear wavy boundary. Lab sample # 95P00071. discontinuous - phpvsfiid 194094; discontinuous - phpvsfiid 194094
    BC1—87 to 113 centimeters (34.3 to 44.5 inches); light gray (10YR 7/2), pale brown (10YR 6/3) crushed, moist; loam; weak coarse subangular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; low toughness; 2.0 very fine and fine roots throughout; 2.0 very fine and fine low-continuity vesicular and tubular and 4.0 very fine and fine moderate-continuity tubular and 2.0 fine and medium low-continuity interstitial and tubular pores; 4 percent fine irregular carbonate threads throughout; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 95P00072
    BC2—113 to 150 centimeters (44.5 to 59.1 inches); very pale brown (10YR 7/3), brown (10YR 5/3) crushed, moist; very fine sandy loam; weak coarse prismatic structure; soft, very friable, slightly sticky, slightly plastic; low toughness; 0.5 very fine and fine roots throughout; 2.0 fine and medium low-continuity interstitial and tubular and 4.0 fine and medium moderate-continuity tubular pores; 3 percent fine irregular carbonate threads throughout; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 7.9, hellige-truog; gradual smooth boundary. Lab sample # 95P00073
    C—150 to 200 centimeters (59.1 to 78.7 inches); very pale brown (10YR 7/3), brown (10YR 5/3) crushed, moist; very fine sandy loam; massive; soft, very friable, slightly sticky, slightly plastic; low toughness; 0.5 very fine and fine roots throughout; 3.0 very fine to medium moderate-continuity tubular pores; 4 percent fine irregular carbonate threads throughout; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 95P00074