| *** Taxonomy Characterization Data *** |
| Pedon ID: 82TX299005 | ( Llano, Texas ) | Print Date: Dec 4 2024 3:14AM |
| Sampled as on Sep 1, 1982: | Pontotoc ; Coarse-loamy, mixed, thermic Rhodic Paleustalf |
| Revised to correlated on Nov 9, 2015: | Pontotoc ; Coarse-loamy, mixed, active, thermic Rhodic Paleustalfs |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP82TX260 LLANO COUNTY IQNEOUS AREA | Natural Resources Conservation Service |
| - | Site ID | S1982TX299005 Lat: 30° 51' 11.90" north Long: 98° 33' 18.30" west MLRA: 82A | National Soil Survey Center | |
| - | Pedon No. | 82P0854 | 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 | 4A1d | 7B1a2 | |||||||||
| 82P04377 | 0-10 | A1 | S | 7.9 | 3.3 | 0.42 | 58 | 1.57 | 0.004 | 1 | |||
| 82P04378 | 10-48 | A2 | S | 8.8 | 3.8 | 0.34 | 61 | 1.58 | 0.008 | 1 | |||
| 82P04379 | 48-82 | Bt1 | S | 14.3 | 8.5 | 0.35 | 55 | 1.57 | 0.013 | 1 | 87 | ||
| 82P04380 | 82-109 | Bt2 | S | 17.9 | 10.9 | 0.34 | 49 | 1.67 | 0.014 | 1 | |||
| 82P04381 | 109-155 | Bt3 | S | 18.8 | 10.9 | 0.34 | 49 | 1 | |||||
| 82P04382 | 155-183 | Bt4 | S | 24.1 | 15.4 | 0.39 | 54 | 1.74 | 0.028 | 5 | |||
| 82P04383 | 183-195 | 2Btc1 | S | 29.1 | 20.7 | 0.41 | 73 | 1.78 | 0.025 | 29 | |||
| 82P04384 | 195-226 | 2Btc2 | S | 30.0 | 18.2 | 0.43 | 66 | 1.74 | 0.031 | 14 | |||
| 82P04385 | 226-243 | 2Bt | S | 23.2 | 10.2 | 0.47 | 70 | 1.56 | 0.041 | 21 | 81 | ||
| 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 | 5C1 | 5C3 | 8D1 | 5D2 | |||||||||||||
| 82P04377 | 0-10 | A1 | S | 6.1 | 0.98 | 100* | 95 | 0.67 | -- | ||||||||||
| 82P04378 | 10-48 | A2 | S | 6.5 | 0.47 | 100* | 89 | 0.51 | -- | ||||||||||
| 82P04379 | 48-82 | Bt1 | S | 6.9 | 0.33 | 100* | 86 | 0.42 | -- | ||||||||||
| 82P04380 | 82-109 | Bt2 | S | 7.0 | 0.28 | -- | 100* | 90 | 0.44 | -- | |||||||||
| 82P04381 | 109-155 | Bt3 | S | 7.0 | 0.20 | -- | 100* | 88 | 0.44 | -- | |||||||||
| 82P04382 | 155-183 | Bt4 | S | 7.2 | 0.19 | -- | 100* | 84 | 0.52 | -- | |||||||||
| 82P04383 | 183-195 | 2Btc1 | S | 7.3 | 0.18 | -- | 100* | 94 | 0.55 | -- | |||||||||
| 82P04384 | 195-226 | 2Btc2 | S | 7.3 | 0.14 | -- | 100* | 92 | 0.63 | 1 | |||||||||
| 82P04385 | 226-243 | 2Bt | S | 7.8 | 0.16 | 2 | 100* | 99 | 0.78 | 1 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.42 | (NA) | |
| Clay, carbonate free, Weighted Average | 15 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 53 | % wt | |
| Volume, >2mm, Weighted Average | 1 | % vol | |
| Clay, total, Weighted Average | 15 | % wt | |
| LE, Whole Soil, Summed to 1m | 0 | cm/m | |
| Weighted averages based on control section: 48-98 cm | |||