| *** Taxonomy Characterization Data *** |
| Pedon ID: S1981TX235002 | ( Irion, Texas ) | Print Date: Dec 23 2025 10:34PM |
| Sampled as on Jun 1, 1981: | Reagan ; Fine-silty, mixed, thermic Ustollic Aridisol |
| Revised to correlated on May 10, 2015: | Reagan ; Fine-silty, carbonatic, superactive, thermic Ustic Haplocalcids |
| United States Department of Agriculture | ||||
| SSL | - | Project | RP81TX294 IRION COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1981TX235002 Lat: 31° 18' 1.00" north Long: 101° 9' 27.99" west MLRA: 81A | National Soil Survey Center | |
| - | Pedon No. | 81P0780 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Taxonomy Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | |||
| Fine | CaCO3 | 1500 | .1-75 | Bulk | Cole | Vol | Resist | ||||||
| Clay | Clay | Clay | kPa | Clay | mm | Den | Whole | % of | Min | ||||
| Depth | <.002 | <.0002 | <.002 | /Clay | Est | Frac | 33 kPa | Soil | Whole | % | |||
| Layer | (cm) | Horz | Prep | (---------% of <2 mm-------) | (-------- % --------) | g cm-3 | cm cm-1 | ||||||
| 3A1a1a | 3A1a1a | 8D1 | 7B1a2 | ||||||||||
| 81P04652 | 0-20 | A | S | 31.3 | 7.1 | 0.49 | 5 | 1 | |||||
| 81P04653 | 20-36 | B1 | S | 38.8 | 10.8 | 0.44 | 5 | 1 | |||||
| 81P04654 | 36-66 | B2 | S | 42.8 | 14.3 | 0.39 | 5 | 1 | 69 | ||||
| 81P04655 | 66-114 | Bk | S | 43.2 | 24.8 | 0.26 | 5 | 1 | |||||
| 81P04656 | 114-152 | B | S | 47.0 | 30.0 | 0.22 | 5 | 2 | |||||
| Taxonomy Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | |||
| pH | pH | Org | Tot | Al+½ Fe | CO3 as | (--- Base Sat ---) | NZ | ECEC | CEC7 | ECEC | Al | ||||||||
| Depth | H2O | NaF | C | C | Oxal | ODOE | CaCO3 | NH4 | Bases | P Ret | cmol(+) | /Clay | /Clay | Sat | E C | ESP | |||
| Layer | (cm) | Horz | Prep | (------------------------------------------ % --------------------------------------------) | kg -1 | % | dS m-1 | % | |||||||||||
| 4C1a2a | 6A1c | 6E1g | |||||||||||||||||
| 81P04652 | 0-20 | A | S | 8.1 | 1.55 | 24 | |||||||||||||
| 81P04653 | 20-36 | B1 | S | 8.1 | 1.18 | 30 | |||||||||||||
| 81P04654 | 36-66 | B2 | S | 8.1 | 0.75 | 35 | |||||||||||||
| 81P04655 | 66-114 | Bk | S | 8.0 | 0.35 | 63 | |||||||||||||
| 81P04656 | 114-152 | B | S | 8.2 | 0.22 | 74 | |||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, carbonate free, Weighted Average | 24 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 5 | % wt | |
| Volume, >2mm, Weighted Average | 1 | % vol | |
| Clay, total, Weighted Average | 42 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||