| *** Taxonomy Characterization Data *** |
| Pedon ID: 77TX027004 | ( Bell, Texas ) | Print Date: Dec 11 2024 4:01PM |
| Sampled as on Jul 1, 1977: | Heiden ; Fine, montmorillonitic, thermic Udic Chromustert |
| Revised to correlated: | Heiden ; Fine, smectitic, thermic Udic Chromusterts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78TX001 VERTISOL STUDY | Natural Resources Conservation Service |
| - | Site ID | S1977TX027004 Lat: 31° 0' 18.00" north Long: 97° 18' 33.00" west MLRA: 86 | National Soil Survey Center | |
| - | Pedon No. | 78P0004 | 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 | |||||||||
| 78P00029 | 0-38 | S | 53.3 | 14.2 | 7.3 | 0.44 | 2 | 1.36 | 0.118 | tr | |||
| 78P00030 | 38-69 | S | 55.7 | 7.3 | 7.7 | 0.44 | 2 | 1.28 | 0.122 | tr | |||
| 78P00031 | 69-97 | S | 58.0 | 7.7 | 8.0 | 0.42 | 3 | 1.33 | 0.132 | tr | |||
| 78P00032 | 97-142 | S | 57.8 | 10.2 | 7.8 | 0.42 | 2 | 1.39 | 0.121 | tr | |||
| 78P00033 | 142-152 | S | 58.4 | 13.7 | 8.4 | 0.39 | 1 | tr | |||||
| 78P00034 | 10-20 | variable | 1.36 | ||||||||||
| 78P00035 | 40-50 | variable | 1.28 | ||||||||||
| 78P00036 | 70-80 | variable | 1.33 | ||||||||||
| 78P00037 | 100-100 | variable | 1.39 | ||||||||||
| 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 | 4H2a | 6E1b | 5C1 | 5C3 | 8D1 | 8A1a | 5D2 | |||||||||||
| 78P00029 | 0-38 | S | 7.8 | 1.03 | 10 | 100 | 0.87 | 0.45 | 1 | ||||||||||
| 78P00030 | 38-69 | S | 7.9 | 0.91 | 10 | 100 | 0.84 | 0.52 | 5 | ||||||||||
| 78P00031 | 69-97 | S | 7.8 | 0.74 | 12 | 100* | 100 | 0.77 | 1.03 | 10 | |||||||||
| 78P00032 | 97-142 | S | 7.9 | 0.47 | 12 | 100* | 100 | 0.75 | 2.37 | 13 | |||||||||
| 78P00033 | 142-152 | S | 7.6 | 0.27 | 1.49 | 10 | 100 | 0.65 | 5.49 | 12 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.94 | (NA) | |
| Clay, carbonate free, Weighted Average | 48 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 2 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 56 | % wt | |
| LE, Whole Soil, Summed to 1m | 0 | cm/m | |
| Weighted averages based on control section: 25-100 cm | |||