| *** Taxonomy Characterization Data *** |
| Pedon ID: 87TX227001 | ( Howard, Texas ) | Print Date: Apr 28 2025 3:33PM |
| Sampled as on Apr 29, 1987: | Amarillo ; Fine-loamy, mixed Aridic Paleustalfs |
| Revised to correlated on Sep 1, 1991: | (unnamed) ; Coarse-loamy, mixed, superactive, thermic Aridic Haplustalf |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP87TX153 WEPP BIG SPRINGS, TEXAS | Natural Resources Conservation Service |
| - | Site ID | S1987TX227001 Lat: 32° 15' 60.00" north Long: 101° 30' 0.00" west MLRA: 77C | National Soil Survey Center | |
| - | Pedon No. | 87P0455 | 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 | 3A1a1a | 8D1 | 4A1d | 7B1a2 | ||||||||
| 87P02376 | 0-27 | Ap | S | 7.3 | 5.7 | 0.47 | 64 | 1.69 | 0.010 | -- | 86 | ||
| 87P02377 | 27-32 | BA | S | 8.6 | 7.1 | 0.48 | 61 | 1.73 | 0.026 | -- | |||
| 87P02378 | 32-46 | Bt1 | S | 13.3 | 10.4 | 0.45 | 56 | 1.79 | 0.018 | -- | 84 | ||
| 87P02379 | 46-69 | Bt2 | S | 16.9 | 13.4 | 0.48 | 47 | 1.51 | 0.026 | -- | 79 | ||
| 87P02380 | 69-98 | Bt3 | S | 13.2 | 13.2 | 1.4 | 0.64 | 43 | 1.51 | 0.024 | -- | ||
| 87P02381 | 98-122 | Bt4 | S | 15.1 | 11.3 | 1.1 | 0.51 | 44 | 1.55 | 0.023 | tr | ||
| 87P02382 | 122-140 | Bt5 | S | 14.1 | 10.4 | 2.0 | 0.48 | 46 | 1.59 | 0.016 | tr | ||
| 87P02383 | 140-287 | Btk | S | 22.2 | 8.0 | 10.4 | 0.32 | 38 | 1.60 | 0.016 | 1 | 74 | |
| 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 | 6A2d | 8J | 6E1g | 5C1 | 5C3 | 8D1 | 8A3a | 5D2 | ||||||||||
| 87P02376 | 0-27 | Ap | S | 7.5 | 0.15 | 0.21 | 0.01 | 100* | 93 | 0.70 | 0.25 | 6 | |||||||
| 87P02377 | 27-32 | BA | S | 7.5 | 0.14 | 0.01 | 100* | 95 | 0.70 | -- | |||||||||
| 87P02378 | 32-46 | Bt1 | S | 7.7 | 0.18 | 0.02 | 100* | 88 | 0.67 | -- | |||||||||
| 87P02379 | 46-69 | Bt2 | S | 7.7 | 0.18 | 0.01 | -- | 100* | 94 | 0.67 | -- | ||||||||
| 87P02380 | 69-98 | Bt3 | S | 8.1 | 0.11 | 0.01 | 1 | 100* | 100 | 0.89 | 1 | ||||||||
| 87P02381 | 98-122 | Bt4 | S | 8.3 | 0.08 | 0.01 | 1 | 100* | 100 | 0.73 | -- | ||||||||
| 87P02382 | 122-140 | Bt5 | S | 8.3 | 0.05 | 0.01 | 2 | 100* | 100 | 0.72 | -- | ||||||||
| 87P02383 | 140-287 | Btk | S | 8.5 | 0.06 | 0.01 | 24 | 100* | 100 | 0.29 | -- | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.75 | (NA) | |
| Clay, carbonate free, Weighted Average | 15 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 48 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 15 | % wt | |
| LE, Whole Soil, Summed to 1m | 2 | cm/m | |
| Weighted averages based on control section: 32-82 cm | |||