IDENTIFIERS

Current Taxon Name (Soil Name): Clarksville

OSD

Series Extent

User Site ID: S1992OK097001

User Pedon ID: 92OK097001

Vegetation Plot ID: S1992OK097001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 93P0394

Print Date: 5/14/2024

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: 36.2611923

Std. Longitude: -95.1255264

Datum: WGS84

Township: T21N

Range: R20E

Section: 36

PLSS Details: 1500 feet W and 1020 feet S of the NE corner

State: Oklahoma

County: OK097—Mayes

MLRA: 116A—Ozark Highland

Non-MLRA Soil Survey Area: OK097—Mayes County, Oklahoma

PEDON

Describers Name: Jimmy Ford, Dr. Brian Carter, and Ellis Benham

Current Taxonomic Class: Loamy-skeletal, siliceous, mesic Typic Paleudults

Pedon Type: TUD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 1

Sampled As Information:

Soil Name - Clarksville

Taxonomic Class - Loamy-skeletal, siliceous, mesic Typic Paleudults

PSC - 92 to 142 cm.

Classificaton Date - 8/12/1992

Moisture Class - udic

Dynamic Soil Properties:

Erosion Class - 0

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium derived from cherty limestone and/or residuum weathered from cherty limestone

Landscape: hills

Landform: hillside

Geomorphic Component Hills: side slope

Hill Slope Profile: shoulder

Slope Position: upper third

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: very high

Drainage Class: somewhat excessively

Flooding: none flooding

Ponding: none ponding

Surface Fragments: 20.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 8/12/1992 (actual site observation date)

Air Photo ID: 32

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
LIST2 PIEC2 QUAL QURU QUVE	Liquidambar styraciflua Pinus echinata Quercus alba Quercus rubra Quercus velutina	sweetgum shortleaf pine white oak northern red oak black oak	— — — — —	— — — — —	— — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon albic horizon argillic horizon lithic contact	0—92 15—92 92—170 170—200	—- —- —- —-

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
15	183	92	220	—		1016	—	—	16	27	5	18	29	7	—	—	7309	—	—

Oi—0 to 2 centimeters (0.0 to 0.8 inches); fragments; abrupt smooth boundary.; moist when described;. 1/4 inch of oak-hickory leaf litter over decomposed humus material; no sample.

A—2 to 17 centimeters (0.8 to 6.7 inches); very dark grayish brown (10YR 3/2) crushed, grayish brown (10YR 5/2) crushed, dry; very gravelly silt loam; weak fine granular structure; soft, very friable, nonsticky, nonplastic; 10.0 fine and medium roots throughout; 5 percent by volume angular 75-162-250 millimeter limestone, cherty fragments and 55 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 6.0, unspecified; clear wavy boundary. Lab sample # 93P02931; dry when described;

E1—17 to 53 centimeters (6.7 to 20.9 inches); pale brown (10YR 6/3) crushed, very pale brown (10YR 7/3) crushed, dry; extremely gravelly silt loam; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 4.0 fine and medium roots throughout and 1.0 coarse roots throughout; 10.0 fine and medium moderate-continuity tubular pores; 10 percent by volume angular 75-162-250 millimeter limestone, cherty fragments and 60 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 6.0, unspecified; clear wavy boundary. Lab sample # 93P02932; dry when described;

E2—53 to 80 centimeters (20.9 to 31.5 inches); light brownish gray (10YR 6/2) crushed, light gray (10YR 7/2) crushed, dry; extremely cobbly silt loam; massive; soft, very friable, nonsticky, nonplastic; 1.0 medium and coarse roots throughout and 4.0 fine roots throughout; 10.0 medium and coarse moderate-continuity tubular pores; 35 percent by volume angular 2-39-75 millimeter limestone, cherty fragments and 40 percent by volume angular 75-162-250 millimeter limestone, cherty fragments; moderately acid, pH 5.8, unspecified; clear wavy boundary. Lab sample # 93P02933; dry when described;

2EB—80 to 94 centimeters (31.5 to 37.0 inches); light yellowish brown (10YR 6/4) crushed, very pale brown (10YR 7/4) crushed, dry; extremely cobbly silt loam; massive; soft, very friable, nonsticky; 1.0 medium roots around fragments and 0.5 fine roots around fragments; 5.0 medium low-continuity and 22.0 fine low-continuity tubular pores; 25 percent by volume angular 2-39-75 millimeter limestone, cherty fragments and 60 percent by volume angular 75-162-250 millimeter limestone, cherty fragments; moderately acid, pH 5.8, unspecified; abrupt wavy boundary. Lab sample # 93P02934; dry when described;. rock weathering rims of 5YR 5/8.

2Bt1—94 to 126 centimeters (37.0 to 49.6 inches); yellowish red (5YR 5/6) crushed, reddish yellow (5YR 6/6) crushed, dry; extremely cobbly silty clay loam; weak coarse prismatic structure; hard, firm, nonsticky, nonplastic; 0.5 medium roots around fragments and 1.0 fine roots around fragments; 10.0 fine low-continuity tubular pores; 10 percent distinct dark reddish brown (5YR 3/4) clay films on rock fragments; 25 percent by volume angular 2-39-75 millimeter limestone, cherty fragments and 60 percent by volume angular 75-162-250 millimeter limestone, cherty fragments; very strongly acid, pH 4.5, unspecified; gradual wavy boundary. Lab sample # 93P02935; dry when described;. continuous - phpvsfiid 175781; continuous - phpvsfiid 175781

2Bt2—126 to 172 centimeters (49.6 to 67.7 inches); yellowish red (5YR 5/6) crushed, reddish yellow (5YR 6/6) crushed, dry; very gravelly silty clay loam; weak coarse prismatic structure; hard, firm, moderately sticky, moderately plastic; 1.0 very fine roots around fragments; 10.0 fine and medium low-continuity tubular pores; 10 percent distinct dark reddish brown (5YR 3/4) clay films on rock fragments; 20 percent by volume angular 75-162-250 millimeter limestone, cherty fragments and 40 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.5, unspecified; abrupt wavy boundary. Lab sample # 93P02936; dry when described;. continuous - phpvsfiid 175782; continuous - phpvsfiid 175782

2R—172 to 202 centimeters (67.7 to 79.5 inches); massive; extremely hard, extremely firm*; fragments. Lab sample # 93P02937; dry when described;. the B material described above continues in cracks or fractures; the 2R layer is tripolite with fractures greater than 50 cm apart with argillic material continuing through the cracks.