IDENTIFIERS

Current Taxon Name (Soil Name): Downs

User Site ID: S1984IA005009

User Pedon ID: S1984IA005009

Vegetation Plot ID: S1984IA005009

User Site Association ID: MLRA 105 - Deep Loess Soils - Glaciated Uplands - FY21 ProjLoamy-Silty Uplands (MN, IA, WI) DSP Project 2021-2024

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - ISU2015

Lab Pedon # - X3-162B2-4

NCSS Pedon Lab Data NASIS Record ID - 75167

Print Date: 5/20/2024

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: 43.4559799

Std. Longitude: -91.3702069

Datum: WGS84

GPS - Positional Error: 10.00

Township: 100N

Range: 4W

Section: 30

PLSS Details: 360 feet south and 530 feet east of the northwest corner

Country: US—United States

State: Iowa

County: IA005—Allamakee

MLRA: 105—Upper Mississippi River Bedrock Controlled Uplands and Valleys

Regional Office: NC—North Central

MLRA Soil Survey Area: NC-ONA—Onalaska, Wisconsin

Non-MLRA Soil Survey Area: IA005—Allamakee County, Iowa

PEDON

Describers Name: Robert Vobora

Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs

Current Taxon Kind: series

Pedon Type: not classified to current taxon name

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Pedon PC 6.0B

Pedon #: 10

Correlated Information:

Soil Name - Downs

PSC - 18 to 68 cm.

Classificaton Date - 3/14/2022

Classifier - Shaunna Repking

Soil Taxonomic Edition - twelfth edition

Moisture Class - udic

Moisture Subclass - typic

Sampled As Information:

Soil Name - Downs

Taxonomic Class - Fine-silty, mixed, superactive, mesic Mollic Hapludalfs

Taxon Kind - series

PSC - 18 to 68 cm.

Classificaton Date - 10/3/1984

Classifier - Robert Vobora

Moisture Class - udic

Moisture SUBClass - typic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Pedon Vegetation and Crop Cover Information:

Agronomic Feature - close grown annual crop, or crop-fallow

Current Crop - alfalfa

Hydric: no

Certification Status: not certified

QC Status: level 1

QA Status: not reviewed

SITE

Parent Material: Peoria silty loess over clayey residuum

Landscape: upland

Landform: ridge

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: convex

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: shale, unspecified at 249cm; sandstone, unspecified at 259cm

Geology: ;

Surface Fragments:

Benchmark Soil?: no

RaCA Information:

Plot/Site Set Up By - Unknown

Plot or Site Recorder - Unknown

VEGETATION

Vegplot Text Note(s): A scan of the original data (i.e. field sheet(s), edits, manuscripts, notes, and other associated data) is available in the scans archive.

SITE OBSERVATION

Observation Date: 10/3/1984 (actual site observation date)

Data Collector: Robert Vobora

Surface Water Kind: none observed

Hydrology Status: unaltered

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Site Obs. Cover Kind 2 - hayland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
MEDIC	Medicago	alfalfa	forb	100	overstory

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon redox depletions with chroma 2 or less	— — —	—- —- —-

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
3	—	—	341	—		899	—	155	8	22	-5	12	22	2	558	—	00134624	LANSING 4 SE, IA US	NOAA

Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark brown (10YR 3/3) and brown (10YR 4/3) and dark yellowish brown (10YR 4/4) silt loam; 33 percent clay; weak fine subangular blocky structure; friable; few very fine roots; fragments; neutral, pH 7.0, unspecified; abrupt smooth boundary. Lab sample # ISU01381. with pockets and streaks of 10YR4/3, 4/4

Bt1—18 to 33 centimeters (7.1 to 13.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 30 percent clay; moderate fine subangular blocky structure; friable; few very fine roots; brown (10YR 4/3), moist, coats on all faces of peds and organic stains on all faces of peds; fragments; neutral, pH 7.0, unspecified; clear smooth boundary. Lab sample # ISU01383

Bt2—33 to 56 centimeters (13.0 to 22.0 inches); yellowish brown (10YR 5/4) silty clay loam; 30 percent clay; moderate medium subangular blocky, and moderate fine subangular blocky, and moderate medium angular blocky, and moderate fine angular blocky structure; friable; few very fine roots; dark yellowish brown (10YR 4/4), moist, coats on all faces of peds and organic stains and silt coats on all faces of peds; fragments; moderately acid, pH 6.0, unspecified; gradual smooth boundary. Lab sample # ISU01384. patchy - phpvsfiid 1181108; patchy - phpvsfiid 1181108

Bt3—56 to 81 centimeters (22.0 to 31.9 inches); yellowish brown (10YR 5/4) silty clay loam; 28 percent clay; moderate medium subangular blocky, and moderate fine subangular blocky, and moderate medium angular blocky, and moderate fine angular blocky structure; friable; few very fine roots; dark yellowish brown (10YR 4/4), moist, coats on all faces of peds and silt coats on all faces of peds and organic stains; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU01385. patchy - phpvsfiid 1181110; patchy - phpvsfiid 1181110

BC—81 to 119 centimeters (31.9 to 46.9 inches); 10YR 4/8 (10YR 4/8) silt loam; 25 percent clay; strong brown (7.5YR 5/6) fine prominent mottles; moderate coarse prismatic structure; friable; few very fine roots; brown (10YR 4/3), moist, coats on all faces of peds and silt coats on all faces of peds and organic stains; fragments; slightly acid, pH 6.2, unspecified; gradual smooth boundary. Lab sample # ISU01386. silt coats especially in lower part; patchy - phpvsfiid 1181113; patchy - phpvsfiid 1181113

C—119 to 168 centimeters (46.9 to 66.1 inches); 10YR 4/8 (10YR 4/8) silt loam; 25 percent clay; yellowish brown (10YR 5/6) fine distinct and grayish brown (10YR 5/2) fine distinct mottles; massive; friable; brown (10YR 4/3), moist, clay films on vertical faces of peds; fragments; slightly acid, pH 6.2, unspecified. Lab sample # ISU01387. with vertical cleavage planes, clay films on cleavage planes