| *** Taxonomy Characterization Data *** |
| Pedon ID: 79TX163001 | ( Frio, Texas ) | Print Date: Dec 4 2024 3:16AM |
| Sampled as on Jun 29, 1979: | Duval ; Fine-loamy, mixed, hyperthermic Aridic Haplustalfs |
| Revised to correlated on Jun 29, 1984: | Duval ; Fine-loamy, siliceous, hyperthermic Aridic Haplustalfs |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP79TX210 FRIO AND ZAVALA COUNTIES | Natural Resources Conservation Service |
| - | Site ID | S1979TX163001 Lat: 28° 43' 15.00" north Long: 99° 9' 25.00" west MLRA: 83A | National Soil Survey Center | |
| - | Pedon No. | 79P0329 | 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 | ||||||||||
| 79P01714 | 0-5 | Ap | S | 12.6 | 0.37 | 13 | tr | ||||||
| 79P01715 | 18-41 | A | S | 12.2 | 0.39 | 13 | tr | ||||||
| 79P01716 | 41-56 | Bt1 | S | 20.5 | 0.38 | 11 | tr | ||||||
| 79P01717 | 56-86 | Bt2 | S | 25.1 | 0.38 | 17 | 4 | 94 | |||||
| 79P01718 | 86-112 | Bt3 | S | 26.3 | 0.39 | 16 | 4 | ||||||
| 79P01719 | 112-132 | B | S | 25.2 | 1.4 | 0.40 | 16 | 6 | |||||
| 79P01720 | 132-183 | Crk | S | 8.2 | 2.8 | 0.66 | 51 | 32 | |||||
| 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 | % | |||||||||||
| 8C1a | 6A1c | 6E1b | 5C1 | 5C3 | 8D1 | 5D2 | |||||||||||||
| 79P01714 | 0-5 | Ap | S | 6.5 | 0.36 | 97 | 73 | 0.50 | -- | ||||||||||
| 79P01715 | 18-41 | A | S | 6.5 | 0.30 | 97 | 73 | 0.52 | -- | ||||||||||
| 79P01716 | 41-56 | Bt1 | S | 6.9 | 0.36 | -- | 99 | 85 | 0.50 | 1 | |||||||||
| 79P01717 | 56-86 | Bt2 | S | 7.4 | 0.32 | -- | 100* | 95 | 0.52 | 2 | |||||||||
| 79P01718 | 86-112 | Bt3 | S | 7.7 | 0.30 | tr | 100* | 100 | 0.56 | 2 | |||||||||
| 79P01719 | 112-132 | B | S | 7.9 | 0.27 | 2 | 100* | 100 | 0.56 | 2 | |||||||||
| 79P01720 | 132-183 | Crk | S | 8.1 | 0.11 | 13 | 100* | 100 | 0.98 | 1 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, total, Weighted Average | 24 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 15 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.52 | (NA) | |
| Clay, carbonate free, Weighted Average | 24 | % wt | |
| Volume, >2mm, Weighted Average | 3 | % vol | |
| Weighted averages based on control section: 41-91 cm | |||