IDENTIFIERS

  • Current Taxon Name (Soil Name): Ahrs
  • OSD
  • Series Extent
  • User Site ID: 75-ALF-007
  • User Pedon ID: 75ID079004
  • Vegetation Plot ID: 75-ALF-007
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - UIdaho
  • Lab Pedon # - 75-ID-4090
  • NCSS Pedon Lab Data NASIS Record ID - 79999
  • 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: 47.9115000
  • Std. Longitude: -116.0139000
  • Datum: WGS84
  • Township: 53N
  • Range: 3E
  • Section: 25
  • PLSS Details: SE 1/4, SE 1/4
  • Location Description: 23 miles north of Pritchard, Idaho, on the road to Jordan Saddle; Shoshone Saddle, site no. 25
  • Map Unit: 470—Bouldercreek-Ahrs families, complex, weakly weathered metasedimentary belt geology, mountain slopes, south aspects
  • Country: US—United States
  • State: Idaho
  • County: ID079—Shoshone
  • MLRA: 43A—Northern Rocky Mountains
  • Regional Office: NW—Northwest
  • MLRA Soil Survey Area: NW-MOS—Moscow, Idaho
  • Non-MLRA Soil Survey Area: ID670—Idaho Panhandle National Forest, Idaho-Washington-Montana
  • 7.5 Minute USGS Quad: 47116-H1—Jordan Creek, Idaho

    • PEDON

  • Describers Name: Harold Brown
  • Current Taxonomic Class: Loamy-skeletal, mixed, semiactive, frigid Andic Eutrudepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: research site
  • Pedon Record Orgin: Pedon PC 6.1B
  • Correlated Information:
  • Soil Name - Ahrs
  • PSC - 26 to 103 cm.
  • Classificaton Date - 1/18/2018
  • Classifier - Brian Gardner
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash and loess over siltites of the Striped Peak Formation
  • Landscape: mountains
  • Landform: mountain slope
  • Geomorphic Component Mountains: mountainflank, center third
  • Slope Position: middle third
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

  • Other Vegetative Class: CN570 - western hemlock/queencup beadlily—Forest Habitat Types of Northern Idaho (GTR-INT-236)

    • SITE OBSERVATION

  • Observation Date: 6/1/1975 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - conifers
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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 % % % % % % % % % % % % %

    Oi

    A

    Bw1

    2Bw2

    2Bw3

    2C

    0

    3

    13

    23

    49

    81

    3

    13

    23

    49

    81

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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

    Oi

    A

    Bw1

    2Bw2

    2Bw3

    2C

    0

    3

    13

    23

    49

    81

    3

    13

    23

    49

    81

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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 %

    Oi

    A

    Bw1

    2Bw2

    2Bw3

    2C

    0

    3

    13

    23

    49

    81

    3

    13

    23

    49

    81

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    Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    PAMY

    TSHE

    Paxistima myrsinites

    Tsuga heterophylla

    Oregon boxleaf

    western hemlock

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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

    50

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    1189

    1302

    225

    1290

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    95

    5.3

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); fragments; abrupt wavy boundary. Lab sample # ID40901
    A—3 to 13 centimeters (1.2 to 5.1 inches); dark brown (10YR 3/3), dark yellowish brown (10YR 4/4), dry; very gravelly silt loam; 30 percent sand; 52 percent silt; 18 percent clay; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many (6.0) very fine roots throughout and many (6.0) medium roots throughout and many (6.0) fine roots throughout and common (4.0) coarse roots throughout; common (4.0) very fine tubular and many (6.0) very fine interstitial pores; 43 percent by volume , 61 percent by weight 2-?-75 millimeter unspecified fragments; clear wavy boundary. Lab sample # ID40902
    Bw1—13 to 23 centimeters (5.1 to 9.1 inches); dark yellowish brown (10YR 4/6), brownish yellow (10YR 6/6), dry; gravelly silt loam; 32 percent sand; 54 percent silt; 14 percent clay; weak medium subangular blocky, and weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many (6.0) very fine roots throughout and many (6.0) medium roots throughout and many (6.0) fine roots throughout and few (0.1) coarse roots throughout; common (4.0) very fine tubular and many (6.0) very fine interstitial pores; 22 percent by volume , 36 percent by weight 2-?-75 millimeter unspecified fragments; clear irregular boundary. Lab sample # ID40903
    2Bw2—23 to 49 centimeters (9.1 to 19.3 inches); light yellowish brown (10YR 6/4), light yellowish brown (10YR 6/4), dry; extremely gravelly loam; 44 percent sand; 34 percent silt; 22 percent clay; weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; many (6.0) very fine roots throughout and common (4.0) medium roots throughout and many (6.0) fine roots throughout and few (0.1) coarse roots throughout; common (4.0) very fine interstitial and common (4.0) very fine tubular and many (6.0) very fine interstitial and many (6.0) very fine tubular pores; 71 percent by volume , 81 percent by weight 2-?-75 millimeter unspecified fragments; clear wavy boundary. Lab sample # ID40904
    2Bw3—49 to 81 centimeters (19.3 to 31.9 inches); yellowish brown (10YR 5/4), very pale brown (10YR 7/4), dry; very gravelly sandy loam; 68 percent sand; 20 percent silt; 12 percent clay; weak medium subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; many (6.0) very fine roots throughout and common (4.0) medium roots throughout and many (6.0) fine roots throughout and few (0.1) coarse roots throughout; common (4.0) very fine tubular and many (6.0) very fine interstitial pores; 39 percent by volume , 53 percent by weight 2-?-75 millimeter unspecified fragments; abrupt wavy boundary. Lab sample # ID40905
    2C—81 centimeters (31.9 inches); fragments. Lab sample # ID40906