D11 CLBJ Megapit Soils Description
| Print Date: Feb 7 2018 | Country: |
| Description Date: May 9 2016 | State: Texas |
| Describer: Sidney Paulson | County: Wise |
| Site ID: S2016TX497001_MP | MLRA: 84B -- West Cross Timbers |
| Site Note: Site of NEON Megapit at the LBJ National Grasslands. | Soil Survey Area: TX497 -- Wise County, Texas |
| Pedon ID: S2016TX497001 | Map Unit: WeC -- Duffau-Windthorst complex, 1 to 5 percent slopes, moderately eroded |
| Pedon Note: | Quad Name: New Harp, Texas |
| Lab Source ID: KSSL | Std Latitude: 33.4014300 |
| Lab Pedon #: 16N0686 | Std Longitude: -97.5672500 |
| User Transect ID: | |
| Soil Name as Described/Sampled: Windthorst | |
| Classification: Fine, mixed, active, thermic Udic Paleustalfs | Latitude: 33 degrees 24 minutes 5.14 seconds north |
| Soil Name as Correlated: | Longitude: 97 degrees 34 minutes 2.10 seconds west |
| Classification: | Datum: WGS84 |
| Pedon Type: correlates to named soil | UTM Zone: 14 |
| Pedon Purpose: research site | UTM Easting: 633238 meters |
| Taxon Kind: series | UTM Northing: 3696708 meters |
| Associated Soils: | |
| Physiographic Division: Interior Plains | Primary Earth Cover: Grass/herbaceous cover |
| Physiographic Province: Central Lowland Province | Secondary Earth Cover: Savanna rangeland |
| Physiographic Section: | Existing Vegetation: cedar elm, eastern redcedar, post oak, saw greenbrier |
| State Physiographic Area: | Parent Material: loamy and/or clayey residuum weathered from sandstone |
| Local Physiographic Area: | Bedrock Kind: sandstone |
| Geomorphic Setting: on backslope of side slope of ridge on hill | Bedrock Depth: 122 centimeters |
| Upslope Shape: linear | Bedrock Hardness: noncemented |
| Cross Slope Shape: linear | Bedrock Fracture Interval: 10 to less than 45 centimeters |
| Particle Size Control Section: 34 to 84 cm. | Surface Fragments: |
| Description origin: NASIS | Description database: KSSL |
| Diagnostic Features: | ochric epipedon 0 to 34 cm. argillic horizon 34 to 122 cm. densic contact 122 to cm. densic materials 122 to 152 cm. |
| Top Depth (cm) | Bottom Depth (cm) | Restriction Kind | Restriction Hardness |
| 122 | 152 | bedrock, densic | noncemented |
| Cont. Site ID: S2016TX497001_MP | Pedon ID: S2016TX497001 |
| Slope (%) | Elevation (meters) | Aspect (deg) | MAAT (C) | MSAT (C) | MWAT (C) | MAP (mm) | Frost-Free Days | Drainage Class | Slope Length (meters) | Upslope Length (meters) |
| 4.0 | 274.3 | 150 | moderately well |
A--0 to 21 centimeters (0.0 to 8.3 inches); brown (7.5YR 5/3) fine sandy loam, brown (7.5YR 4/3), moist; 15 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; slightly hard, very friable, noncemented, nonsticky, nonplastic; many very fine roots throughout and common medium roots throughout and many fine roots throughout and common coarse roots throughout; common fine high-continuity irregular pores; noneffervescent, by HCl, 1 normal; clear smooth boundary. Lab sample # 16N03043
E--21 to 34 centimeters (8.3 to 13.4 inches); pink (7.5YR 7/3) fine sandy loam, light brown (7.5YR 6/3), moist; 10 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; slightly hard, very friable, noncemented, nonsticky, nonplastic; common very fine roots throughout and common medium roots throughout and many fine roots throughout; common fine high-continuity irregular pores; noneffervescent, by HCl, 1 normal; clear smooth boundary. Lab sample # 16N03044
Bt1--34 to 71 centimeters (13.4 to 28.0 inches); red (2.5YR 5/8) clay, red (2.5YR 4/8), moist; 44 percent clay; moderate medium prismatic parts to moderate medium angular blocky structure; very hard, firm, noncemented, moderately sticky, moderately plastic; common very fine roots throughout and common medium roots throughout and many fine roots throughout; common fine high-continuity dendritic tubular pores; 80 percent distinct clay films on all faces of peds; noneffervescent, by HCl, 1 normal; gradual smooth boundary. Lab sample # 16N03045
Bt2--71 to 89 centimeters (28.0 to 35.0 inches); red (2.5YR 5/8) sandy clay, red (2.5YR 4/8), moist; 37 percent clay; moderate medium prismatic parts to moderate medium angular blocky structure; very hard, firm, noncemented, moderately sticky, moderately plastic; common very fine roots throughout and common medium roots throughout and common fine roots throughout; 60 percent distinct clay films on all faces of peds; 1 percent very fine distinct irregular extremely weakly cemented 7.5YR 2.5/1), moist, iron-manganese concretions with clear boundaries throughout; noneffervescent, by HCl, 1 normal; clear smooth boundary. Lab sample # 16N03046
Bt3--89 to 122 centimeters (35.0 to 48.0 inches); pale brown (10YR 6/3) sandy clay loam, pale brown (10YR 6/3), moist; 32 percent clay; weak medium prismatic parts to moderate medium angular blocky structure; hard, firm, noncemented, slightly sticky, slightly plastic; common medium roots throughout and common fine roots throughout; 20 percent distinct clay films on all faces of peds; 1 percent very fine distinct irregular extremely weakly cemented 7.5YR 2.5/1), moist, iron-manganese concretions with clear boundaries throughout and 40 percent medium prominent irregular 5YR 6/8), moist, masses of oxidized iron with clear boundaries throughout; noneffervescent, by HCl, 1 normal; abrupt smooth boundary. Lab sample # 16N03047
Cd--122 to 152 centimeters (48.0 to 59.8 inches); very pale brown (10YR 8/2) loamy very fine sand, light gray (10YR 7/2), moist; 6 percent clay; massive; noncemented; common medium roots in cracks; noneffervescent, by HCl, 1 normal; Dark organic stains are present along root channels in the cracks and fracture planes of the lower part of this layer. Lab sample # 16N03048.
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