IDENTIFIERS

Current Taxon Name (Soil Name): Valera

OSD

Series Extent

User Site ID: S1992TX137003

User Pedon ID: 92TX137003

Vegetation Plot ID: S1992TX137003

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 92P0473

NCSS Pedon Lab Data NASIS Record ID - 64712

Print Date: 11/21/2024

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: 30.2875004

Std. Longitude: -100.4658356

Datum: WGS84

Location Description: From the entrance of Canyon Ranch, 1.0 mile northeast on a graded ranch road, 0.6 mile east on a graded ranch road, 5.0 miles north on a graded ranch road, then 50 feet west in rangeland

State: Texas

County: TX137—Edwards

MLRA: 81A—Edwards Plateau, Western Part

Non-MLRA Soil Survey Area: TX607—Edwards and Real Counties, Texas

7.5 Minute USGS Quad: 30100-C4—Harrison Ranch, Texas

PEDON

Describers Name: L.E. Loomis, S.R. Albee

Current Taxonomic Class: Fine, montmorillonitic, thermic Petrocalcic Calciustolls

Pedon Type: TUD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 3

Sampled As Information:

Soil Name - Valera

Taxonomic Class - Fine, montmorillonitic, thermic Petrocalcic Calciustolls

PSC - 25 to 100 cm.

Classificaton Date - 2/14/1992

Moisture Class - ustic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: plains

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: negligible

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: s strong weathered limestone, arenaceous with 100 to <200 and a dip of 1 to 1 degrees

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 2/14/1992 (actual site observation date)

Air Photo ID: 3

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

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
COVI8 MATR3 NALE3 OPLE OPUNT PROSO SPCR	Condalia viridis Mahonia trifoliolata Nassella leucotricha Opuntia leptocaulis Opuntia Prosopis Sporobolus cryptandrus	green snakewood algerita Texas wintergrass Christmas cactus pricklypear mesquite sand dropseed	— — — — — — —	— — — — — — —	— — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon	0—18	—-

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	—	—	704	—		584	—	—	18.3	26.7	8.9	—	—	—	—	—	TX424	Sonora, Texas	Official U.S.

A1—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2), very dark brown (10YR 2/2), moist; silty clay; 45 percent clay; moderate medium subangular blocky parts to strong medium granular structure; slightly hard, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 0.5 very fine and fine high-continuity interstitial and 3.0 very fine and fine high-continuity tubular pores; 1 percent fine spherical worm casts; 7 percent by volume subrounded 2-39-75 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 92P02868; moist when described;. 5% rock fragments 2-20 mm in diameter

A2—23 to 43 centimeters (9.1 to 16.9 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; silty clay; 48 percent clay; weak medium prismatic parts to moderate medium subangular blocky parts to strong medium granular structure; slightly hard, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 3.0 very fine and fine high-continuity interstitial and 21.0 very fine and fine high-continuity tubular pores; 3 percent fine spherical worm casts; 1 percent by volume subrounded 75-162-250 millimeter limestone, arenaceous fragments and 9 percent by volume subrounded 2-39-75 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 92P02869; moist when described;. 6% rock fragments 2-20 mm in diameter

Bk—43 to 71 centimeters (16.9 to 28.0 inches); light brown (7.5YR 6/3), brown (7.5YR 4/3), moist; gravelly silty clay loam; 39 percent clay; weak medium prismatic parts to moderate medium subangular blocky parts to strong medium granular structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 0.5 very fine and fine high-continuity interstitial and 12.0 very fine and fine high-continuity tubular pores; 1 percent medium irregular worm nodules; 2 percent by volume subrounded 75-162-250 millimeter limestone, arenaceous fragments and 21 percent by volume subrounded 2-39-75 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; gradual irregular boundary. Lab sample # 92P02870; moist when described;. few very thin carbonate filaments; 20% rock fragments 2-20 mm in diameter

Bkm—71 to 89 centimeters (28.0 to 35.0 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4), moist; extremely stony silty clay loam; 35 percent clay; moderate medium and coarse granular structure; friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots around fragments and 0.5 medium and coarse roots around fragments; 21.0 very fine and fine high-continuity interstitial and 21.0 very fine and fine high-continuity tubular pores; 15 percent by volume 2-39-75 millimeter limestone, arenaceous fragments and 15 percent by volume 600-?-? millimeter limestone, arenaceous fragments and 25 percent by volume 75-162-250 millimeter limestone, arenaceous fragments and 30 percent by volume 250-425-600 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 92P02871; moist when described;. 10% rock fragments 2-20 mm in diameter

CBk—89 to 114 centimeters (35.0 to 44.9 inches); 10 percent brownish yellow (10YR 6/8), brown (7.5YR 5/4), moist; silty clay loam; 36 percent clay; 0.5 very fine and fine roots in cracks and 0.5 medium and coarse roots in cracks; 3.0 very fine and fine high-continuity interstitial and 21.0 very fine and fine high-continuity tubular pores; 10 percent by volume 75-162-250 millimeter limestone, arenaceous fragments and 15 percent by volume 250-425-600 millimeter limestone, arenaceous fragments and 15 percent by volume 2-39-75 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # 92P02872; moist when described;. discontinuous laminar layer at upper surface; rock structure similar to blocky soil structure; non-cemented; 10% rock fragments 2-20 mm in diameter

Bk2'—114 to 152 centimeters (44.9 to 59.8 inches);, 85 percent strong brown (7.5YR 5/6) and 7 percent very pale brown (10YR 8/2) and 8 percent brownish yellow (10YR 6/8), moist; silty clay; 41 percent clay; moderate medium angular blocky parts to moderate fine angular blocky structure; 0.5 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 3.0 very fine and fine high-continuity interstitial and 3.0 very fine and fine high-continuity tubular pores; 3 percent coarse spherical carbonate masses; 20 percent by volume 75-162-250 millimeter limestone, arenaceous fragments and 25 percent by volume 2-39-75 millimeter limestone, arenaceous fragments; violent effervescence, by hcl, 1n; clear irregular boundary. Lab sample # 92P02873; moist when described;. discontinuous laminar layer at upper surface; non-cemented; rock structure similar to blocky soil structure; (10YR 8/2) soft white lime bodies; cobbles are flattened; 15% rock fragments 2-20 mm in diameter

Ckm—152 to 163 centimeters (59.8 to 64.2 inches);, 10 percent reddish yellow (5YR 6/8) and 60 percent strong brown (7.5YR 5/8) and 10 percent very pale brown (10YR 8/2), moist; fine sandy loam; 12 percent clay; 0.5 very fine and fine roots in cracks and 0.5 medium and coarse roots in cracks; 3.0 very fine and fine high-continuity interstitial and 0.5 very fine and fine high-continuity tubular pores; 1 percent fine irregular worm nodules; 15 percent by volume 2-39-75 millimeter limestone, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # 92P02873; moist when described;

R—163 centimeters (64.2 inches); fragments. indurated, discontinuous caliche layer, 3 inches thick, only above stones and boulders; decomposed completely above cobbly pebbles and fractures; fractures at least 24 inches apart