IDENTIFIERS
Current Taxon Name (Soil Name):
Clarinda
OSD
Series Extent
User Site ID:
S1987IA1770018
User Pedon ID:
87IA1770018
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
87P0391
NCSS Pedon Lab Data NASIS Record ID -
59686
Print Date:
4/24/2025
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:
40.7116661
Std. Longitude:
-91.9472198
Datum:
WGS84
Township:
68N
Range:
9W
Section:
6
PLSS Details:
242 feet north and 329 feet east of the southwest corner
Country:
US—United States
State:
Iowa
County:
IA177—Van Buren
MLRA:
109—Iowa and Missouri Heavy Till Plain
Regional Office:
NC—North Central
MLRA Soil Survey Area:
NC-GAL—Gallatin, Missouri
Non-MLRA Soil Survey Area:
IA177—Van Buren County, Iowa
PEDON
Describers Name:
J. A. Lucassen
Current Taxonomic Class:
Fine, smectitic, mesic Udollic Ochraqualfs
Current Taxon Kind:
series
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Converted from SSL-CMS data
Pedon #:
1
Correlated Information:
Soil Name -
Clarinda
PSC -
20 to 70 cm.
Classificaton Date -
7/11/2007
Moisture Class -
udic
Moisture Subclass -
udic
Sampled As Information:
Soil Name -
Kniffin
Taxonomic Class -
Fine, montmorillonitic, mesic Udollic Ochraqualf
Taxon Kind -
series
Classificaton Date -
9/1/1987
Moisture Class -
aquic
Moisture SUBClass -
udic
Dynamic Soil Properties:
Erosion Class -
2
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
loess derived from mixed-calcareous
Landscape:
upland
Landform:
upland slope
Drainage Class:
somewhat poorly
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
9/1/1987 (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
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
6
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—
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—
135
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1Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) interior silty clay loam; weak fine subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; 15 percent very dark gray (10YR 3/1), moist, coats on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; abrupt smooth boundary. Lab sample # 87P02011. Streaks and pockets of (2.5Y 4/2).; few coats surface features on faces of peds; few fine roots
1Bt1—20 to 38 centimeters (7.9 to 15.0 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 11 percent dark yellowish brown (10YR 4/4) fine prominent and 11 percent yellowish brown (10YR 5/4) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # 87P02012. Fourth mottle is few fine prominent (5YR 5/6).; few fine iron-manganese concretions concentrations; common clay films surface features; few fine roots; common fine prominent 10YR44 mottles; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles
1Bt2—38 to 53 centimeters (15.0 to 20.9 inches); dark grayish brown (10YR 4/2) interior silty clay; 1 percent dark brown (7.5YR 3/4) fine prominent and 11 percent dark yellowish brown (10YR 4/4) fine distinct and 11 percent yellowish brown (10YR 5/4) fine distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # 87P02013. few fine iron-manganese concretions concentrations; common clay films surface features; few fine roots; common fine distinct 10YR44 mottles; common fine distinct 10YR54 mottles; few fine prominent 7.5YR34 mottles
1Bt3—53 to 76 centimeters (20.9 to 29.9 inches); light brownish gray (10YR 6/2) interior silty clay; 1 percent 5YR 4/8 (5YR 4/8) fine prominent and 11 percent dark brown (7.5YR 3/4) fine prominent and 11 percent strong brown (7.5YR 4/6) fine prominent mottles; weak medium subangular blocky structure; firm; 0.5 fine roots; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 87P02014. few fine iron-manganese concretions concentrations; common clay films surface features; few fine roots; few fine prominent 5YR48 mottles; common fine prominent 7.5YR34 mottles; common fine prominent 7.5YR46 mottles
2C1—76 to 94 centimeters (29.9 to 37.0 inches); gray (10YR 5/1) interior clay; 1 percent strong brown (7.5YR 4/6) fine prominent and 1 percent dark brown (7.5YR 3/4) fine prominent mottles; massive; extremely firm*; 0.5 fine roots; fragments; slightly alkaline, pH 7.4, hellige-truog; gradual smooth boundary. Lab sample # 87P02015. few fine roots; few fine prominent 7.5YR46 mottles; few fine prominent 7.5YR34 mottles
2C2—94 to 124 centimeters (37.0 to 48.8 inches); dark gray (N 4/0) interior clay; 11 percent reddish brown (5YR 4/4) fine and medium prominent and 11 percent yellowish red (5YR 4/6) fine and medium prominent mottles; massive; extremely firm*; fragments; slightly alkaline, pH 7.4, hellige-truog; gradual smooth boundary. common fine and medium prominent 5YR44 mottles; common fine and medium prominent 5YR46 mottles
2C3—124 to 152 centimeters (48.8 to 59.8 inches); dark gray (N 4/0) interior clay; 1 percent yellowish red (5YR 4/6) fine prominent and 1 percent 5YR 4/8 (5YR 4/8) fine prominent mottles; massive; extremely firm*; fragments; slightly alkaline, pH 7.4, hellige-truog. few fine prominent 5YR46 mottles; few fine prominent 5YR48 mottles