| *** Taxonomy Characterization Data *** |
| Pedon ID: 81TX079001 | ( Cochran, Texas ) | Print Date: Feb 1 2025 8:51PM |
| Sampled as on Jun 1, 1981: | Brownfield ; Fine-loamy, mixed, thermic Arenic Aridic Paleustalf |
| Revised to correlated: | Brownfield ; Loamy, mixed, superactive, thermic Arenic Aridic Paleustalfs |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP81TX216 RED BEDS-HIGH PLAINS STUDY | Natural Resources Conservation Service |
| - | Site ID | S1981TX079001 Lat: 33° 23' 57.00" north Long: 102° 46' 54.01" west MLRA: 77C | National Soil Survey Center | |
| - | Pedon No. | 81P0474 | 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 | ||||||||
| 81P02751 | 0-15 | A1 | S | 0.8 | 0.8 | 88 | -- | ||||||
| 81P02752 | 15-30 | A2 | S | 0.8 | 0.8 | 91 | -- | ||||||
| 81P02753 | 30-45 | A3 | S | 0.4 | 0.4 | 90 | -- | ||||||
| 81P02754 | 45-74 | A4 | S | 1.2 | 1.2 | 0.67 | 88 | 1.60 | 0.004 | -- | 86 | ||
| 81P02755 | 74-83 | A5 | S | 2.0 | 1.2 | 0.50 | 82 | 1.66 | -- | -- | |||
| 81P02756 | 83-105 | Bt1 | S | 20.2 | 19.0 | 0.47 | 67 | 1.72 | 0.017 | -- | |||
| 81P02757 | 105-140 | Bt2 | S | 24.1 | 22.0 | 0.50 | 56 | 1.73 | 0.030 | -- | 82 | ||
| 81P02758 | 140-170 | Bt3 | S | 21.1 | 17.4 | 0.48 | 53 | 1.61 | 0.030 | -- | |||
| 81P02759 | 170-180 | Btk1 | S | 21.0 | 10.3 | 0.39 | 57 | 1 | |||||
| 81P02760 | 180-190 | Btk2 | S | 12.7 | 4.9 | 2.0 | 0.52 | 52 | 6 | ||||
| 81P02761 | 190-210 | Btk3 | S | 9.4 | 2.4 | 5.1 | 0.48 | 72 | tr | ||||
| 81P02762 | 210-220 | Bt4 | S | 14.2 | 5.3 | 0.39 | 69 | tr | |||||
| 81P02763 | 220-260 | Bt5 | S | 13.6 | 7.0 | 0.50 | 69 | -- | |||||
| 81P02764 | 260-300 | C1 | S | 10.2 | 5.3 | 0.45 | 70 | -- | |||||
| 81P02765 | 300-320 | C2 | S | 16.5 | 7.8 | 0.47 | 58 | -- | |||||
| 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 | |||||||||||||
| 81P02751 | 0-15 | A1 | S | 7.1 | 0.30 | -- | 100* | 100 | -- | ||||||||||
| 81P02752 | 15-30 | A2 | S | 6.9 | 0.18 | -- | 100* | 100 | -- | ||||||||||
| 81P02753 | 30-45 | A3 | S | 6.9 | 0.13 | -- | 100* | 100 | -- | ||||||||||
| 81P02754 | 45-74 | A4 | S | 7.0 | 0.14 | -- | 100* | 100 | 0.67 | -- | |||||||||
| 81P02755 | 74-83 | A5 | S | 7.1 | 0.14 | -- | 100* | 100 | 0.55 | -- | |||||||||
| 81P02756 | 83-105 | Bt1 | S | 6.3 | 0.22 | 95 | 79 | 0.64 | -- | ||||||||||
| 81P02757 | 105-140 | Bt2 | S | 6.1 | 0.15 | 92 | 83 | 0.70 | -- | ||||||||||
| 81P02758 | 140-170 | Bt3 | S | 6.5 | 0.13 | 99 | 90 | 0.73 | -- | ||||||||||
| 81P02759 | 170-180 | Btk1 | S | 7.2 | 3 | ||||||||||||||
| 81P02760 | 180-190 | Btk2 | S | 7.7 | 33 | ||||||||||||||
| 81P02761 | 190-210 | Btk3 | S | 8.1 | 5 | ||||||||||||||
| 81P02762 | 210-220 | Bt4 | S | 8.2 | 1 | ||||||||||||||
| 81P02763 | 220-260 | Bt5 | S | 8.2 | 1 | ||||||||||||||
| 81P02764 | 260-300 | C1 | S | 8.3 | 1 | ||||||||||||||
| 81P02765 | 300-320 | C2 | S | 8.2 | 1 | ||||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.67 | (NA) | |
| Clay, carbonate free, Weighted Average | 22 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 61 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 22 | % wt | |
| Weighted averages based on control section: 83-133 cm | |||