IDENTIFIERS

Current Taxon Name (Soil Name): Rodessa

OSD

Series Extent

User Site ID: S11TX2897001

User Pedon ID: S11TX2897001

Vegetation Plot ID: S11TX2897001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - TAMU

Lab Pedon # - S11TX2897001

NCSS Pedon Lab Data NASIS Record ID - 45615

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: 31.4133282

Std. Longitude: -95.7311401

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-D6—Stanmire Lake, Texas

PEDON

Describers Name: C.T. Hallmark and Chance Robinson

Current Taxonomic Class: Fine, smectitic, thermic Aquic Glossudalfs

Current Taxon Kind: taxadjunct

Pedon Type: not classified to current taxon name

Pedon Purpose: research site

Correlated Information:

Soil Name - Rodessa

PSC - 53 to 103 cm.

Classificaton Date - 5/21/2012

Soil Taxonomic Edition - eleventh edition

Moisture Class - udic

Moisture Subclass - aquic

Sampled As Information:

Soil Name - Rader

Classificaton Date - 4/12/2011

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium

Landscape: river valley

Landform: stream terrace

Microfeature: mound

Geomorphic Component Terraces: tread

Slope Shape Across: linear

Slope Shape Down: convex

Drainage Class: somewhat poorly

Geology: Qal formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 4/12/2011 (actual site observation date)

Surface Water Kind: none observed

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 - sunny

Current Air Temp - 30

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
Ap E E/Bt Btg1 Btg2 Btg3 Btkg Btk1 Btk2 BCtg CBg Cg	0 22 38 53 77 103 132 152 171 184 206 222	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	0.1 0 0.1 0.1 0 0 0 0.1 0 0 0 0	0.1 0 0.1 0.1 0 0 0 0.1 0.1 0 0 0	0.8 0.6 0.7 0.7 0.7 0.5 0.5 0.5 0.7 0.8 0.5 0.1	41.5 46.2 45.9 45.9 38.8 34.1 37.7 34.1 47 47 38.6 55.7	25.9 28.2 27.1 27.1 17.6 15.2 15.2 15.2 23.7 23.7 31.5 35.8	300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve 300 mesh sieve	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
Ap E E/Bt Btg1 Btg2 Btg3 Btkg Btk1 Btk2 BCtg CBg Cg	0 22 38 53 77 103 132 152 171 184 206 222	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —		— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
Ap E E/Bt Btg1 Btg2 Btg3 Btkg Btk1 Btk2 BCtg CBg Cg	0 22 38 53 77 103 132 152 171 184 206 222	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water ec meter, 1:1 water	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
2GA BRAR5 HOPU NALE3 OPUNT RUBUS SEPA10	— Bromus arvensis Hordeum pusillum Nassella leucotricha Opuntia Rubus Setaria parviflora	Grass, annual field brome little barley Texas wintergrass pricklypear blackberry marsh bristlegrass	— — — — — — —	— — — — — — —	— — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon redox concentrations glossic horizon argillic horizon reduced matrix aquic conditions secondary carbonates reduced matrix	0—38 22—222 38—53 53—206 53—152 53—267 132—184 184—267	—- —- —- —- —- —- —- —-

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
0.1	450	210	59.6	—	207	1094	—	239	18.6	27.2	10.9	—	—	—	—	—	411596	Centerville, Texas	COOP A

Ap—0 to 22 centimeters (0.0 to 8.7 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; fine sandy loam; 68 percent sand; 21 percent silt; 11 percent clay; weak medium subangular blocky structure; friable; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.3, pH meter; abrupt smooth boundary. Lab sample # TAMUE3836; dry when described; observed in push tube

E—22 to 38 centimeters (8.7 to 15.0 inches); brown (10YR 5/3) fine sandy loam; 75 percent sand; 17 percent silt; 8 percent clay; weak medium subangular blocky structure; friable; 10 percent medium yellowish brown (10YR 5/4), moist, masses of oxidized iron and 10 percent fine yellowish brown (10YR 5/4), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4, pH meter; clear wavy boundary. Lab sample # TAMUE3837; dry when described; observed in push tube

E/Bt—38 to 53 centimeters (15.0 to 20.9 inches); yellowish brown (10YR 5/4) and yellowish brown (10YR 5/6) fine sandy loam; 74 percent sand; 17 percent silt; 9 percent clay; weak medium subangular blocky structure; friable; 1 percent fine yellowish red (5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.5, pH meter; clear wavy boundary. Lab sample # TAMUE3838; dry when described; observed in push tube

Btg1—53 to 77 centimeters (20.9 to 30.3 inches); grayish brown (10YR 5/2) sandy clay; 48 percent sand; 12 percent silt; 40 percent clay; moderate medium angular blocky structure; very firm; distinct grayish brown (10YR 5/2), moist, clay films on vertical faces of peds; 10 percent medium strong brown (7.5YR 5/8), moist, masses of oxidized iron and 10 percent medium yellowish brown (10YR 5/4), moist, iron-manganese masses and 10 percent coarse yellowish brown (10YR 5/4), moist, iron-manganese masses; fragments; noneffervescent, by hcl, 1n; moderately acid, pH 5.8, pH meter; clear smooth boundary. Lab sample # TAMUE3839; moist when described; observed in push tube. continuous - phpvsfiid 725743; continuous - phpvsfiid 725743

Btg2—77 to 103 centimeters (30.3 to 40.6 inches); grayish brown (10YR 5/2) sandy clay loam; 57 percent sand; 12 percent silt; 31 percent clay; moderate medium angular blocky structure; very firm; distinct light brownish gray (10YR 6/2), moist, clay films on vertical faces of peds; 2 percent strong brown (7.5YR 5/6), moist, masses of oxidized iron and 30 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 # TAMUE3840; moist when described; observed in push tube. continuous - phpvsfiid 725744; continuous - phpvsfiid 725744

Btg3—103 to 132 centimeters (40.6 to 52.0 inches); grayish brown (10YR 5/2) sandy clay; 50 percent sand; 14 percent silt; 36 percent clay; moderate medium angular blocky structure; very firm; distinct light brownish gray (10YR 6/2), moist, sand coats on vertical faces of peds and distinct dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds; 10 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; neutral, pH 6.7, pH meter; gradual smooth boundary. Lab sample # TAMUE3841; moist when described; observed in push tube. discontinuous - phpvsfiid 725745; continuous - phpvsfiid 725746; discontinuous - phpvsfiid 725745; continuous - phpvsfiid 725746

Btkg—132 to 152 centimeters (52.0 to 59.8 inches); light brownish gray (10YR 6/2) sandy clay loam; 53 percent sand; 14 percent silt; 33 percent clay; weak medium angular blocky structure; very firm; distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 1 percent black (10YR 2/1), moist, iron-manganese concretions and 2 percent yellowish red (5YR 5/6), moist, masses of oxidized iron and 10 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron and 30 percent brownish yellow (10YR 6/6), moist, masses of oxidized iron; 1 percent fine carbonate masses; 1 percent by volume carbonate concretions fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.8, pH meter; gradual smooth boundary. Lab sample # TAMUE3842; moist when described; observed in push tube. continuous - phpvsfiid 725747; continuous - phpvsfiid 725747

Btk1—152 to 171 centimeters (59.8 to 67.3 inches); light olive brown (2.5Y 5/3) sandy clay loam; 50 percent sand; 17 percent silt; 33 percent clay; weak medium angular blocky structure; very firm; distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 5 percent black (10YR 2/1), moist, iron-manganese masses and 40 percent yellowish brown (10YR 5/6), moist, masses of oxidized iron; 3 percent fine threadlike carbonate masses; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 7.9, pH meter; gradual smooth boundary. Lab sample # TAMUE3843; moist when described; observed in push tube. continuous - phpvsfiid 725748; continuous - phpvsfiid 725748

Btk2—171 to 184 centimeters (67.3 to 72.4 inches); yellowish brown (10YR 5/6) sandy clay loam; 64 percent sand; 12 percent silt; 24 percent clay; weak medium angular blocky structure; firm; distinct light brownish gray (10YR 6/2), moist, clay films on vertical faces of peds; 5 percent yellowish red (5YR 5/6), moist, masses of oxidized iron and 20 percent pale brown (10YR 6/3), moist, iron depletions; 2 percent fine threadlike carbonate masses; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, pH meter; gradual smooth boundary. Lab sample # TAMUE3844; moist when described; observed in push tube. patchy - phpvsfiid 725749; patchy - phpvsfiid 725749

BCtg—184 to 206 centimeters (72.4 to 81.1 inches); light brownish gray (10YR 6/2) fine sandy loam; 72 percent sand; 9 percent silt; 20 percent clay; weak medium subangular blocky structure; firm; distinct grayish brown (10YR 5/2), moist, clay films on vertical faces of peds; 5 percent strong brown (7.5YR 5/6), moist, masses of oxidized iron and 40 percent brownish yellow (10YR 6/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, pH meter; clear smooth boundary. Lab sample # TAMUE3845; moist when described; observed in push tube. discontinuous - phpvsfiid 725750; discontinuous - phpvsfiid 725750

CBg—206 to 222 centimeters (81.1 to 87.4 inches); gray (10YR 6/1) stratified stratified very fine sandy loam; 71 percent sand; 12 percent silt; 18 percent clay; weak coarse subangular blocky structure; friable; 15 percent brownish yellow (10YR 6/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.1, pH meter; clear smooth boundary. Lab sample # TAMUE3846; moist when described; observed in push tube

Cg—222 to 267 centimeters (87.4 to 105.1 inches); light gray (10YR 7/1) stratified stratified fine sand; 92 percent sand; 5 percent silt; 4 percent clay; structureless single grain; loose; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, pH meter. Lab sample # TAMUE3847; moist when described; observed in push tube