IDENTIFIERS

Current Taxon Name (Soil Name): Southwick

OSD

Series Extent

User Site ID: S1986ID069001

User Pedon ID: 86ID069001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 86P0880

NCSS Pedon Lab Data NASIS Record ID - 59174

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: 46.4383316

Std. Longitude: -116.5311127

Datum: WGS84

Township: 36N

Range: 2W

Section: 25

PLSS Details: 1400 feet S and 600 feet E of NW corner

State: Idaho

County: ID069—Nez Perce

MLRA: 9—Palouse and Nez Perce Prairies

PEDON

Describers Name: Pete Biggam

Current Taxonomic Class: Fine-silty, mixed, mesic Boralfic Argixerolls

Current Taxon Kind: series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 1

Correlated Information:

Soil Name - Southwick

PSC - 25 to 82 cm.

Classificaton Date - 7/11/2007

Moisture Class - xeric

Sampled As Information:

Soil Name - Southwick

Taxonomic Class - Fine-silty, mixed, mesic Argiaquic Xeric Argialbol

Taxon Kind - series

Classificaton Date - 8/1/1986

Moisture Class - xeric

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: upland

Landform: upland slope

Geomorphic Component Hills: side slope

Hill Slope Profile: backslope

Slope Shape Down: linear

Runoff: medium

Drainage Class: moderately well

Surface Fragments: 0.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 8/1/1986 (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 albic horizon fragipan argillic horizon	0—66 66—82 82—117 117—178	—- —- —- —-

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
9	—	—	943	—	0	58	—	—	8	17	-1	10	18	4	—	—	—	109846	—

1Ap1—0 to 13 centimeters (0.0 to 5.1 inches); very dark grayish brown (10YR 3/2) crushed, dark grayish brown (10YR 4/2) crushed, dry; silt loam; 18 percent clay; moderate very coarse platy structure; hard, firm, slightly sticky, slightly plastic; 5.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 30 percent fine and medium irregular worm casts; fragments; moderately acid, pH 5.8, lamotte-morgan; clear smooth boundary. Lab sample # 86P05277. Surface compacted due to tillage operations.; many fine and medium worm casts concentrations; many very fine and fine roots throughout

1Ap2—13 to 23 centimeters (5.1 to 9.1 inches); very dark brown (10YR 2/2) crushed, dark grayish brown (10YR 4/2) crushed, dry; silt loam; 19 percent clay; moderate medium and coarse subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 5.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 30 percent fine and medium irregular worm casts; fragments; moderately acid, pH 5.8, lamotte-morgan; gradual smooth boundary. Lab sample # 86P05278. Plow pan in upper 23 cm - straw mat visible at 23 cm - (horizon break) - good worm activity.; many fine and medium worm casts concentrations; many very fine and fine roots throughout

1BA—23 to 38 centimeters (9.1 to 15.0 inches); dark brown (10YR 3/3) crushed, brown (10YR 4/3) crushed, dry; silt loam; 22 percent clay; weak medium prismatic structure; hard, firm, slightly sticky, slightly plastic; 5.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 15 percent faint clay films on faces of peds; 30 percent fine and medium irregular worm casts; fragments; moderately acid, pH 5.8, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05279. Horizon well worked by earthworms.; many fine and medium worm casts concentrations; few clay films surface features on faces of peds; many very fine and fine roots throughout; patchy - phpvsfiid 231736; patchy - phpvsfiid 231736

1Bt1—38 to 52 centimeters (15.0 to 20.5 inches); dark brown (10YR 3/3) crushed, brown (10YR 5/3) crushed, dry; silt loam; 24 percent clay; moderate medium prismatic structure; hard, firm, slightly sticky, slightly plastic; 2.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 37 percent faint clay films on faces of peds and in pores; 30 percent fine and medium irregular worm casts; fragments; moderately acid, pH 6.0, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05280. many fine and medium worm casts concentrations; common clay films surface features on faces of peds and in pores; common very fine and fine roots throughout; discontinuous - phpvsfiid 231737; discontinuous - phpvsfiid 231737

1Bt2—52 to 66 centimeters (20.5 to 26.0 inches); dark brown (10YR 3/3) crushed, brown (10YR 5/3) crushed, dry; silt loam; 21 percent clay; moderate medium prismatic structure; hard, firm, slightly sticky, slightly plastic; 2.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 37 percent faint clay films on faces of peds and in pores; 1 percent fine and medium irregular worm casts; fragments; moderately acid, pH 5.6, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05281. few fine and medium worm casts concentrations; common clay films surface features on faces of peds and in pores; common very fine and fine roots throughout; discontinuous - phpvsfiid 231738; discontinuous - phpvsfiid 231738

1EB—66 to 71 centimeters (26.0 to 28.0 inches); dark grayish brown (10YR 4/2) crushed, pale brown (10YR 6/3) crushed, dry; silt loam; 19 percent clay; moderate medium and coarse subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; 0.5 very fine and fine roots throughout; 5.5 very fine and fine tubular pores; 15 percent faint clay films on faces of peds; 1 percent spherical iron-manganese concretions; fragments; moderately acid, pH 5.6, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05282. few very fine and fine iron-manganese concretions concentrations; few clay films surface features on faces of peds; few very fine and fine roots throughout; patchy - phpvsfiid 231739; patchy - phpvsfiid 231739

1E—71 to 79 centimeters (28.0 to 31.1 inches); brown (10YR 5/3) crushed, light gray (10YR 7/2) crushed, dry; silt loam; 15 percent clay; 11 percent olive yellow (2.5Y 6/8) fine prominent mottles; weak medium and coarse platy structure; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine and fine roots throughout; 2.5 very fine and fine tubular pores; 1 percent spherical iron-manganese concretions; fragments; moderately acid, pH 5.6, lamotte-morgan; abrupt smooth boundary. Lab sample # 86P05283. few very fine and fine iron-manganese concretions concentrations; few very fine and fine roots throughout; common fine prominent 2.5Y68 mottles

1EBx—79 to 82 centimeters (31.1 to 32.3 inches); brown (10YR 5/3) crushed, light gray (10YR 7/2) crushed, dry; silt loam; 15 percent clay; 1 percent olive yellow (2.5Y 6/8) fine prominent mottles; moderate coarse and very coarse platy, and strong medium and coarse angular blocky structure; hard, firm, slightly sticky, slightly plastic; 0.5 very fine and fine tubular pores; 1 percent spherical iron-manganese concretions; fragments; moderately acid, pH 5.6, lamotte-morgan; abrupt smooth boundary. Lab sample # 86P05284. few very fine and fine iron-manganese concretions concentrations; few fine prominent 2.5Y68 mottles

1Btxb—82 to 89 centimeters (32.3 to 35.0 inches); brown (10YR 4/3) crushed, pale brown (10YR 6/3) crushed, dry; silty clay loam; 30 percent clay; strong coarse prismatic structure; very hard, very firm, moderately sticky, moderately plastic; brittle; 2.5 very fine and fine roots between peds; 0.5 very fine and fine discontinuous tubular pores; 15 percent distinct very dark brown (10YR 2/2) organic stains on vertical faces of peds and 37 percent prominent light gray (10YR 7/2) skeletans over cutans on vertical faces of peds and 55 percent prominent brown (7.5YR 4/2) clay films on faces of peds and in pores; 30 percent spherical iron-manganese concretions; fragments; moderately acid, pH 6.0, lamotte-morgan; gradual smooth boundary. Lab sample # 86P05285. Roots matted and flattened between prisms-none entering. Polygonal network of prisms visible on cleared horizontal surface-some material between prisms.; many very fine and fine iron-manganese concretions concentrations; many clay films surface features on faces of peds and in pores; common skeletans over cutans surface features on vertical faces of peds; few organic coats surface features on vertical faces of peds; common very fine and fine roots between peds; discontinuous - phpvsfiid 231741; continuous - phpvsfiid 231740; patchy - phpvsfiid 231742; discontinuous - phpvsfiid 231741; continuous - phpvsfiid 231740; patchy - phpvsfiid 231742

1Btxb2—89 to 117 centimeters (35.0 to 46.1 inches); brown (10YR 4/3) crushed, pale brown (10YR 6/3) crushed, dry; silty clay loam; 32 percent clay; strong coarse prismatic, and strong medium and coarse angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; brittle; 2.5 very fine and fine roots between peds; 0.5 very fine and fine discontinuous tubular pores; 37 percent prominent very pale brown (10YR 8/2) skeletans throughout and 55 percent prominent brown (7.5YR 4/2) clay films on faces of peds and in pores; 30 percent spherical iron-manganese concretions; fragments; moderately acid, pH 6.0, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05286. Roots matted and flattened between prisms-none entering-pores are being plugged by siltans-clay.; many very fine and fine iron-manganese concretions concentrations; many clay films surface features on faces of peds and in pores; common skeletans (sand or silt) surface features throughout; common very fine and fine roots between peds; continuous - phpvsfiid 221057; patchy - phpvsfiid 221058; continuous - phpvsfiid 221057; patchy - phpvsfiid 221058

1Btb1—117 to 137 centimeters (46.1 to 53.9 inches); brown (7.5YR 4/3) crushed, yellowish brown (10YR 5/4) crushed and pale brown (10YR 6/3) interior, dry; silty clay loam; 33 percent clay; strong coarse angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine and fine roots between peds; 0.5 very fine and fine discontinuous tubular pores; 15 percent prominent very pale brown (10YR 8/2) skeletans over cutans on vertical faces of peds and 55 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; 30 percent spherical iron-manganese concretions; fragments; neutral, pH 6.6, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05287. Bulk density seems to decrease-loose fragipan.; many very fine and fine iron-manganese concretions concentrations; many clay films surface features on faces of peds and in pores; few skeletans over cutans surface features on vertical faces of peds; few very fine and fine roots between peds; continuous - phpvsfiid 221059; patchy - phpvsfiid 221060; continuous - phpvsfiid 221059; patchy - phpvsfiid 221060

1Btb2—137 to 162 centimeters (53.9 to 63.8 inches); dark yellowish brown (10YR 4/4) crushed, yellowish brown (10YR 5/4) crushed and pale brown (10YR 6/3) interior, dry; silty clay loam; 32 percent clay; strong medium angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine and fine discontinuous tubular pores; 15 percent prominent 7.5YR 2/0 (7.5YR 2/0) manganese or iron-manganese stains on all faces of peds and 55 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; 30 percent spherical iron-manganese concretions; fragments; neutral, pH 6.8, lamotte-morgan; gradual wavy boundary. Lab sample # 86P05288. many very fine and fine iron-manganese concretions concentrations; many clay films surface features on faces of peds and in pores; few manganese or iron-manganese stains surface features on vertical and horizontal faces of peds; continuous - phpvsfiid 221061; patchy - phpvsfiid 221062; continuous - phpvsfiid 221061; patchy - phpvsfiid 221062

1Btb3—162 to 178 centimeters (63.8 to 70.1 inches); brown (10YR 4/3) crushed, pale brown (10YR 6/3) crushed, dry; silty clay loam; 30 percent clay; strong medium and coarse angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine and fine discontinuous tubular pores; 15 percent prominent 7.5YR 2/0 (7.5YR 2/0) manganese or iron-manganese stains on all faces of peds and 55 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; 30 percent spherical iron-manganese concretions; fragments; neutral, pH 6.9, lamotte-morgan. Lab sample # 86P05289. many very fine and fine iron-manganese concretions concentrations; many clay films surface features on faces of peds and in pores; few manganese or iron-manganese stains surface features on vertical and horizontal faces of peds; continuous - phpvsfiid 221063; patchy - phpvsfiid 221064; continuous - phpvsfiid 221063; patchy - phpvsfiid 221064