IDENTIFIERS

  • Current Taxon Name (Soil Name): Southwick
  • OSD
  • Series Extent
  • User Site ID: 77-ALF-048
  • User Pedon ID: 77ID057004
  • Vegetation Plot ID: 77-ALF-048
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - UIdaho
  • Lab Pedon # - 77-ID-2970
  • NCSS Pedon Lab Data NASIS Record ID - 83050
  • 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: 46.8738333
  • Std. Longitude: -117.0051056
  • Datum: WGS84
  • Township: 41N
  • Range: 5W
  • Section: 30
  • PLSS Details: NE
  • Location Description: 183 meters east of Highway 95, 174.5 meters west and 4.6 meters south of northeast corner; Southwick series; graduate student site
  • Country: US—United States
  • State: Idaho
  • County: ID057—Latah
  • MLRA: 43A—Northern Rocky Mountains
  • Regional Office: NW—Northwest
  • MLRA Soil Survey Area: NW-MOS—Moscow, Idaho
  • Non-MLRA Soil Survey Area: ID057—Latah County, Idaho
  • PEDON

  • Describers Name: Neil Peterson and Mark Johnson
  • Pedon Purpose: research site
  • Pedon Record Orgin: Pedon PC 6.1B
  • Sampled As Information:
  • Soil Name - Southwick
  • Classificaton Date - 5/5/1977
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


  • SITE

  • Parent Material: deep loess (recent loess over older loess)
  • Slope Position: lower third
  • Slope Shape Across: convex
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no
  • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/5/1977 (actual site observation date)
  • Surface Cover Properties:
  • 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

    Oe

    A1

    A2

    AB

    Bw1

    Bw2

    Ec

    Btcb1

    Btcb2

    0

    2

    4

    14

    29

    43

    67

    87

    99

    113

    2

    4

    14

    29

    43

    67

    87

    99

    113

    154

    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

    Oe

    A1

    A2

    AB

    Bw1

    Bw2

    Ec

    Btcb1

    Btcb2

    0

    2

    4

    14

    29

    43

    67

    87

    99

    113

    2

    4

    14

    29

    43

    67

    87

    99

    113

    154

    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

    Oe

    A1

    A2

    AB

    Bw1

    Bw2

    Ec

    Btcb1

    Btcb2

    0

    2

    4

    14

    29

    43

    67

    87

    99

    113

    2

    4

    14

    29

    43

    67

    87

    99

    113

    154

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

    ACMI2

    AMAL2

    ARMA12

    BRVU

    CAGE2

    CARU

    CRDO2

    FRAGA

    GABO2

    GETR

    HODI

    OSOC

    PHMA5

    PIPO

    POPR

    RONU

    ROWO

    SPBE2

    SYAL

    Achillea millefolium

    Amelanchier alnifolia

    Arenaria macrantha

    Bromus vulgaris

    Carex geyeri

    Calamagrostis rubescens

    Crataegus douglasii

    Fragaria

    Galium boreale

    Geum triflorum

    Holodiscus discolor

    Osmorhiza occidentalis

    Physocarpus malvaceus

    Pinus ponderosa

    Poa pratensis

    Rosa nutkana

    Rosa woodsii

    Spiraea betulifolia

    Symphoricarpos albus

    common yarrow

    Saskatoon serviceberry

    Columbia brome

    Geyer's sedge

    pinegrass

    black hawthorn

    strawberry

    northern bedstraw

    old man's whiskers

    oceanspray

    western sweetroot

    mallow ninebark

    ponderosa pine

    Kentucky bluegrass

    Nootka rose

    Woods' rose

    white spirea

    common snowberry

    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

    793

    921

    315

    575

    120

    7.8

    8.9

    Oi—0 to 2 centimeters (0.0 to 0.8 inches); fragments. Lab sample # ID29701
    Oe—2 to 4 centimeters (0.8 to 1.6 inches); fragments. Lab sample # ID29702
    A1—4 to 14 centimeters (1.6 to 5.5 inches); very dark brown (10YR 2/2), dark grayish brown (10YR 4/2), dry; silt loam; 10 percent sand; 71 percent silt; 19 percent clay; weak fine granular structure; slightly hard, 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; many (6.0) very fine interstitial and many (6.0) fine interstitial pores; fragments; clear smooth boundary. Lab sample # ID29703
    A2—14 to 29 centimeters (5.5 to 11.4 inches); very dark brown (10YR 2/2), dark grayish brown (10YR 4/2), dry; silt loam; 10 percent sand; 70 percent silt; 20 percent clay; weak fine subangular blocky parts to moderate fine granular structure; slightly hard, 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 common (4.0) coarse roots in cracks; many (6.0) very fine tubular and many (6.0) fine tubular pores; fragments; clear wavy boundary. Lab sample # ID29704
    AB—29 to 43 centimeters (11.4 to 16.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; silt loam; 9 percent sand; 67 percent silt; 23 percent clay; weak fine subangular blocky, and weak medium single grain; slightly hard, 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 common (4.0) coarse roots throughout; many (6.0) very fine tubular and many (6.0) fine tubular pores; fragments; clear wavy boundary. Lab sample # ID29705
    Bw1—43 to 67 centimeters (16.9 to 26.4 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; silt loam; 9 percent sand; 64 percent silt; 27 percent clay; moderate fine subangular blocky, and weak medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (4.0) fine roots throughout and few (1.0) coarse roots throughout; many (6.0) very fine tubular and few (1.0) medium tubular and many (6.0) fine tubular pores; 10 percent faint clay films on all faces of peds; fragments; gradual wavy boundary. Lab sample # ID29706
    Bw2—67 to 87 centimeters (26.4 to 34.3 inches); very dark grayish brown (10YR 3/2), brown (10YR 5/3), dry; silt loam; 10 percent sand; 71 percent silt; 19 percent clay; strong medium subangular blocky, and strong coarse subangular blocky structure; hard, firm, slightly sticky, slightly plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (4.0) fine roots throughout; many (6.0) very fine tubular and few (1.0) medium tubular and many (6.0) fine tubular pores; fragments; gradual wavy boundary. Lab sample # ID29707
    Ec—87 to 99 centimeters (34.3 to 39.0 inches); grayish brown (10YR 5/2), very pale brown (10YR 8/2), dry; silt loam; 15 percent sand; 76 percent silt; 9 percent clay; massive; hard, friable, slightly sticky, slightly plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (4.0) fine roots throughout; many (6.0) very fine tubular and few (1.0) medium tubular and many (6.0) fine tubular pores; fragments; abrupt wavy boundary. Lab sample # ID29708
    Btcb1—99 to 113 centimeters (39.0 to 44.5 inches); brown (10YR 4/3), yellowish brown (10YR 5/4), dry; silt loam; 12 percent sand; 68 percent silt; 21 percent clay; strong medium subangular blocky, and strong coarse subangular blocky structure; very hard, very firm, moderately sticky, moderately plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (4.0) fine roots throughout; many (6.0) very fine tubular and few (1.0) medium tubular and many (6.0) fine tubular pores; 55 percent prominent brown (7.5YR 4/3), moist, clay films on all faces of peds and 55 percent prominent brown (7.5YR 4/4), moist, clay films on surfaces along pores; fragments; clear wavy boundary. Lab sample # ID29709
    Btcb2—113 to 154 centimeters (44.5 to 60.6 inches); dark yellowish brown (10YR 4/6), yellowish brown (10YR 5/6), dry; silt loam; 8 percent sand; 68 percent silt; 24 percent clay; moderate medium prismatic, and moderate coarse prismatic structure; very hard, very firm, moderately sticky, moderately plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (4.0) fine roots throughout; common (4.0) very fine tubular and few (1.0) fine tubular and common (4.0) fine tubular pores; 55 percent distinct brown (7.5YR 4/4), moist, clay films on all faces of peds and 55 percent distinct brown (7.5YR 4/4), moist, clay films on surfaces along pores; fragments. Lab sample # ID297010