IDENTIFIERS

Current Taxon Name (Soil Name): Rodessa

OSD

Series Extent

User Site ID: S11TX2897025

User Pedon ID: S11TX2897025

Vegetation Plot ID: S11TX2897025

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - TAMU

Lab Pedon # - S11TX2897025

NCSS Pedon Lab Data NASIS Record ID - 45636

Print Date: 11/24/2024

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: 31.4742641

Std. Longitude: -95.7727509

Datum: WGS84

State: Texas

County: TX289—Leon

MLRA: 87A—Texas Claypan Area, Southern Part

Non-MLRA Soil Survey Area: TX289—Leon County, Texas

7.5 Minute USGS Quad: 31095-D7—Lake Leon, Texas

PEDON

Describers Name: C.T. Hallmark and Chance Robinson

Current Taxonomic Class: Fine, mixed, active, thermic Glossaquic Paleudalfs

Current Taxon Kind: taxadjunct

Pedon Type: not classified to current taxon name

Pedon Purpose: research site

Correlated Information:

Soil Name - Rodessa

PSC - 38 to 88 cm.

Classificaton Date - 7/12/2013

Classifier - Chance M. Robinson

Soil Taxonomic Edition - eleventh edition

Moisture Class - udic

Moisture Subclass - aquic

Sampled As Information:

Soil Name - Derly

Classificaton Date - 7/20/2011

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium

Landscape: Broad river valley

Landform: stream terrace

Microfeature: swale

Geomorphic Component Terraces: tread

Drainage Class: somewhat poorly

Geology: Qt formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 7/20/2011 (actual site observation date)

Surface Water Kind: none observed

Microrelief Kind: microlow

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - pastureland, tame

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - partly cloudy

Current Air Temp - 37

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
CRCA6 PANO2 SPIN4	Croton capitatus Paspalum notatum Sporobolus indicus	hogwort bahiagrass smut grass	— — —	— — —	— — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon redox concentrations argillic horizon glossic horizon aquic conditions reduced matrix redox depletions with chroma 2 or less reduced matrix redox concentrations redox depletions with chroma 2 or less redox concentrations	0—38 0—231 38—336 38—59 38—535 59—194 194—293 293—336 293—336 336—515 413—535	—- —- —- —- —- —- —- —- —- —- —-

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
1.5	480	415	52	—	135	1094	—	239	19	27	11	—	—	—	—	—	411596	Centerville, Texas	COOP A

Ap—0 to 9 centimeters (0.0 to 3.5 inches); brown (10YR 5/3), brownish yellow (10YR 6/6), dry; very fine sandy loam; moderate medium subangular blocky, and weak medium granular structure; friable; 3.0 medium roots and 3.0 fine roots; 1 percent yellowish brown (10YR 5/4), moist, masses of oxidized iron and 2 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.4, pH meter; clear smooth boundary. Lab sample # TAMUE4166; dry when described; observed in push tube

E—9 to 38 centimeters (3.5 to 15.0 inches); 90 percent light brown (7.5YR 6/3) and 10 percent brown (7.5YR 5/4), 90 percent pink (7.5YR 7/3), dry; very fine sandy loam; weak medium subangular blocky structure; friable; 1.0 medium roots and 1.0 fine roots; 1 percent fine black (10YR 2/1), moist, iron-manganese concretions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.8, pH meter; clear wavy boundary. Lab sample # TAMUE4167; dry when described; observed in push tube

E/Bt—38 to 59 centimeters (15.0 to 23.2 inches); 75 percent pale brown (10YR 6/3) and 25 percent yellowish brown (10YR 5/6), 75 percent light gray (10YR 7/2), dry; very fine sandy loam; weak medium subangular blocky structure; friable; 1.0 fine roots; 4.0 fine moderate-continuity vesicular pores; 1 percent fine black (10YR 2/1), moist, iron-manganese concretions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.7, pH meter; abrupt wavy boundary. Lab sample # TAMUE4168; dry when described; observed in push tube

Btg1—59 to 93 centimeters (23.2 to 36.6 inches); light brownish gray (10YR 6/2) clay; moderate medium angular blocky structure; very firm; 0.2 fine roots; distinct clay films on vertical faces of peds and 1 percent light gray (10YR 7/2), moist, skeletans on vertical faces of peds; 10 percent yellowish red (5YR 5/6), moist, masses of oxidized iron and 20 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.7, pH meter; gradual smooth boundary. Lab sample # TAMUE4169; dry when described; observed in push tube. discontinuous - phpvsfiid 725966; discontinuous - phpvsfiid 725966

Btg2—93 to 147 centimeters (36.6 to 57.9 inches); light brownish gray (10YR 6/2) clay; moderate medium angular blocky structure; very firm; 0.2 fine roots; distinct grayish brown (10YR 5/2), moist, clay films on vertical faces of peds; 5 percent yellowish red (5YR 5/6), moist, masses of oxidized iron and 40 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.8, pH meter; gradual smooth boundary. Lab sample # TAMUE4170; dry when described; observed in push tube. discontinuous - phpvsfiid 725967; discontinuous - phpvsfiid 725967

Btg3—147 to 194 centimeters (57.9 to 76.4 inches); light brownish gray (10YR 6/2) clay loam; moderate medium angular blocky structure; very firm; 0.1 fine roots; distinct light brownish gray (10YR 6/2), moist, clay films on vertical faces of peds; 10 percent brownish yellow (10YR 6/6), moist, masses of oxidized iron and 30 percent yellowish red (5YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.9, pH meter; gradual smooth boundary. Lab sample # TAMUE4171; dry when described; observed in push tube. patchy - phpvsfiid 725968; patchy - phpvsfiid 725968

Bt1—194 to 231 centimeters (76.4 to 90.9 inches); light yellowish brown (10YR 6/4) clay loam; moderate medium angular blocky structure; firm; 0.1 medium roots and 0.1 fine roots; distinct clay films on vertical faces of peds; 1 percent strong brown (7.5YR 5/8), moist, masses of oxidized iron and 5 percent brownish yellow (10YR 6/6), moist, masses of oxidized iron and 40 percent light brownish gray (10YR 6/2), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.8, pH meter; gradual smooth boundary. Lab sample # TAMUE4172; dry when described; observed in push tube. patchy - phpvsfiid 725969; patchy - phpvsfiid 725969

Bt2—231 to 293 centimeters (90.9 to 115.4 inches); brownish yellow (10YR 6/6) sandy clay loam; weak medium subangular blocky structure; firm; 0.1 fine roots; distinct yellowish brown (10YR 5/4), moist, clay films on vertical faces of peds; 30 percent light brownish gray (10YR 6/2), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, pH meter; gradual smooth boundary. Lab sample # TAMUE4173; dry when described; observed in push tube. patchy - phpvsfiid 725970; patchy - phpvsfiid 725970

B'tg—293 to 336 centimeters (115.4 to 132.3 inches); light brownish gray (10YR 6/2) clay; weak coarse subangular blocky structure; very firm; 0.1 fine roots; distinct clay films on vertical faces of peds; 30 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.8, pH meter; gradual smooth boundary. Lab sample # TAMUE4174; moist when described; observed in push tube. patchy - phpvsfiid 725971; patchy - phpvsfiid 725971

BC—336 to 413 centimeters (132.3 to 162.6 inches); strong brown (7.5YR 5/6) stratified stratified silty clay loam; weak coarse subangular blocky structure; friable; 10 percent light brownish gray (10YR 6/2), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.5, pH meter; clear smooth boundary. Lab sample # TAMUE4175; moist when described; observed in push tube

C1—413 to 439 centimeters (162.6 to 172.8 inches); light yellowish brown (10YR 6/4) stratified stratified clay to silt loam; structureless massive; very firm; 2 percent noncoherent cemented black (10YR 2/1), moist, iron-manganese masses and 10 percent light gray (10YR 7/2), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; extremely acid, pH 4.4, pH meter; clear smooth boundary. Lab sample # TAMUE4176; moist when described; observed in push tube

C2—439 to 515 centimeters (172.8 to 202.8 inches); light yellowish brown (10YR 6/4) stratified stratified clay to silt loam; structureless massive; very firm; 2 percent noncoherent cemented black (10YR 2/1), moist, iron-manganese masses and 5 percent light gray (10YR 7/2), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; extremely acid, pH 4.4, pH meter; clear smooth boundary. Lab sample # TAMUE4177; moist when described; observed in push tube

C3—515 to 535 centimeters (202.8 to 210.6 inches); yellowish brown (10YR 5/6) stratified stratified very fine sandy loam; structureless massive; friable; 5 percent pale brown (10YR 6/3), moist, iron depletions; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, pH meter. Lab sample # TAMUE4178; moist when described; observed in push tube