IDENTIFIERS

Current Taxon Name (Soil Name): Czar

OSD

Series Extent

User Site ID: 83C-TX131-112Ac

User Pedon ID: S01TX-131-001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 01N0874

NCSS Pedon Lab Data NASIS Record ID - 15161

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: 28.0312500

Std. Longitude: -98.2893906

Datum: WGS84

Location Description: Duval County, Texas; from the intersection of Texas Highway 359 and Texas Highway 339 in Benavides, 24.4 miles northwest on Texas Highway 339 to Freer, 34.3 miles northeast on US Highway 59 to the intersection of Farm Road 624, then east 4.4 miles on Farm Road 624 to the entrance of a private ranch road, south 8.6 miles on gravel road, then west 0.2 miles on ranch road; site is 200 feet south along drainageway.

Map Unit: 112A—Czar-Clareville soils, 0 to 1 percent slopes, rarely flooded

Country: US—United States

State: Texas

County: TX131—Duval

MLRA: 83C—Central Rio Grande Plain

Non-MLRA Soil Survey Area: TX131—Duval County, Texas

7.5 Minute USGS Quad: 28098-A3—Clegg, Texas

PEDON

Describers Name: Paul Holland

Current Taxonomic Class: Fine-loamy, mixed, superactive, hyperthermic Pachic Argiustolls

Pedon Record Orgin: NASIS

Pedon #: 1

Correlated Information:

Soil Name - Czar

PSC - 23 to 73 cm.

Classificaton Date - 8/26/2008

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Geomorphic Component Terraces: riser

Hill Slope Profile: toeslope

Slope Position: lower third

Slope Complexity: simple

Slope Shape Across: concave

Slope Shape Down: concave

Runoff: negligible

Drainage Class: well

Flooding: rare flooding for very brief periods

Ponding: none ponding

Geology: Alluvium formation of the Holocene group.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/21/2001 (actual site observation date)

Air Photo ID: 5C

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon secondary carbonates argillic horizon calcic horizon	0—76 9—236 23—127 60—236	—- —- —- —-

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
0.5	30	30	122	—	330	611	—	290	22	29	14	—	—	—	—	—	TX0690	Benavides 2, TX0690	TAPS

A1—0 to 9 centimeters (0.0 to 3.5 inches); very dark gray (10YR 3/1), black (10YR 2/1), moist; sandy clay loam; weak fine subangular blocky, and weak medium subangular blocky structure; slightly hard; 1.0 very fine roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout; 1.0 very fine tubular pores; 1 percent shell fragments; fragments; very slight effervescence; clear smooth boundary. Lab sample # 01N04668

A2—9 to 23 centimeters (3.5 to 9.1 inches); very dark gray (10YR 3/1), black (10YR 2/1), moist; sandy clay loam; weak fine subangular blocky, and strong medium subangular blocky parts to weak medium subangular blocky, and strong coarse subangular blocky parts to weak medium subangular blocky structure; hard; 2.0 very fine roots throughout and 2.0 medium roots throughout and 2.0 fine roots throughout; 1.0 very fine tubular pores; 1 percent fine irregular carbonate masses; fragments; very slight effervescence; clear smooth boundary. Lab sample # 01N04669

Bt1—23 to 39 centimeters (9.1 to 15.4 inches); very dark gray (10YR 3/1), black (10YR 2/1), moist; sandy clay loam; weak medium subangular blocky, and weak fine subangular blocky structure; hard; 2.0 very fine roots throughout and 2.0 fine roots throughout; 1.0 very fine tubular pores; 3 percent distinct clay films on vertical faces of peds; 1 percent fine irregular carbonate masses; fragments; noneffervescent; clear smooth boundary. Lab sample # 01N04670. discontinuous - phpvsfiid 415535; discontinuous - phpvsfiid 415535

Bt2—39 to 60 centimeters (15.4 to 23.6 inches); very dark gray (10YR 3/1), black (10YR 2/1), moist; sandy clay loam; weak medium prismatic parts to weak medium subangular blocky, and weak medium prismatic parts to weak fine subangular blocky structure; very hard; 1.0 very fine roots throughout and 1.0 fine roots throughout; 2.0 very fine tubular pores; 5 percent distinct clay films on vertical faces of peds; 1 percent fine irregular carbonate masses; fragments; noneffervescent; clear smooth boundary. Lab sample # 01N04671. discontinuous - phpvsfiid 415536; discontinuous - phpvsfiid 415536

Btk1—60 to 76 centimeters (23.6 to 29.9 inches); very dark grayish brown (10YR 3/2), very dark brown (10YR 2/2), moist; clay loam; moderate medium prismatic parts to moderate medium angular blocky, and moderate medium prismatic parts to moderate fine angular blocky structure; extremely hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 3 percent faint clay films on vertical faces of peds; 1 percent irregular shell fragments and 2 percent fine irregular carbonate masses and 1 percent fine spherical carbonate nodules and 1 percent medium spherical carbonate nodules; fragments; strong effervescence; clear smooth boundary. Lab sample # 01N04672. discontinuous - phpvsfiid 415537; discontinuous - phpvsfiid 415537

Btk2—76 to 105 centimeters (29.9 to 41.3 inches); 60 percent brown (10YR 5/3) and 40 percent pale brown (10YR 6/3), 60 percent brown (10YR 4/3) and 40 percent brown (10YR 5/3), moist; clay loam; strong medium prismatic parts to moderate medium angular blocky structure; extremely hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 3 percent faint clay films on vertical faces of peds; 1 percent irregular shell fragments and 3 percent coarse spherical carbonate nodules and 2 percent fine spherical carbonate nodules and 4 percent medium irregular carbonate masses and 2 percent medium spherical carbonate nodules and 3 percent very coarse spherical carbonate nodules; 10 percent by volume nonflat rounded very strongly coherent cemented carbonate nodules fragments; violent effervescence; clear smooth boundary. Lab sample # 01N04673. discontinuous - phpvsfiid 415538; discontinuous - phpvsfiid 415538

Btk3—105 to 127 centimeters (41.3 to 50.0 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay loam; moderate medium prismatic parts to weak medium subangular blocky, and moderate medium prismatic parts to weak medium angular blocky, and moderate coarse prismatic parts to weak medium subangular blocky, and moderate coarse prismatic parts to weak medium angular blocky structure; extremely hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 1 percent faint clay films on vertical faces of peds; 2 percent irregular shell fragments and 3 percent fine irregular carbonate masses and 1 percent fine spherical carbonate nodules; fragments; strong effervescence; gradual smooth boundary. Lab sample # 01N04674. discontinuous - phpvsfiid 415539; discontinuous - phpvsfiid 415539

Bk1—127 to 177 centimeters (50.0 to 69.7 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; clay loam; weak coarse prismatic parts to weak medium angular blocky structure; extremely hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 1 percent irregular shell fragments and 2 percent fine spherical carbonate nodules and 4 percent medium irregular carbonate masses and 2 percent medium spherical carbonate nodules; fragments; strong effervescence; gradual smooth boundary. Lab sample # 01N04675

Bk2—177 to 209 centimeters (69.7 to 82.3 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; sandy clay loam; weak medium prismatic parts to weak medium subangular blocky, and weak medium prismatic parts to weak fine subangular blocky structure; extremely hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 2 percent fine irregular carbonate masses and 2 percent fine spherical carbonate nodules; fragments; strong effervescence; clear smooth boundary. Lab sample # 01N04676

Bk3—209 to 236 centimeters (82.3 to 92.9 inches); very pale brown (10YR 7/3), pale brown (10YR 6/3), moist; sandy clay loam; weak fine subangular blocky, and weak medium subangular blocky structure; hard; 1.0 very fine roots throughout; 2.0 very fine tubular pores; 2 percent fine irregular carbonate masses; fragments; strong effervescence. Lab sample # 01N04677