| *** Taxonomy Characterization Data *** |
| Pedon ID: S1981MS163001 | ( Yazoo, Mississippi ) | Print Date: Feb 17 2025 2:41AM |
| Sampled as on Jul 3, 1981: | Commerce ; Fine-silty, mixed, thermic Aeric Fluvaquent |
| Revised to correlated: | Commerce ; Fine-silty, mixed, superactive, nonacid, thermic Aeric Fluvaquents |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP81MS245 BENCHMARK SOILS | Natural Resources Conservation Service |
| - | Site ID | S1981MS163001 Lat: 32° 49' 19.59" north Long: 90° 42' 56.38" west MLRA: 131 | National Soil Survey Center | |
| - | Pedon No. | 81P0554 | 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 | |||||||||
| 81P03272 | 0-18 | Ap | S | 21.2 | 12.1 | 0.46 | 1 | 1.50 | 0.017 | -- | |||
| 81P03273 | 18-61 | Bw1 | S | 28.1 | 15.9 | 0.62 | 1 | 1.54 | 0.038 | -- | 73 | ||
| 81P03274 | 61-81 | Bw2 | S | 23.7 | 10.4 | 0.61 | 1 | 1.39 | 0.030 | -- | |||
| 81P03275 | 81-97 | BC | S | 22.0 | 8.7 | 0.54 | 1 | 1.37 | 0.031 | -- | |||
| 81P03276 | 97-152 | C | S | 22.8 | 11.2 | 0.63 | 1 | 1.37 | 0.035 | -- | 70 | ||
| 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 | |||||||||||||
| 81P03272 | 0-18 | Ap | S | 5.8 | 0.92 | 97 | 77 | 0.82 | 1 | ||||||||||
| 81P03273 | 18-61 | Bw1 | S | 6.4 | 0.68 | 98 | 83 | 0.84 | tr | ||||||||||
| 81P03274 | 61-81 | Bw2 | S | 7.0 | 0.43 | -- | 100* | 86 | 0.89 | tr | |||||||||
| 81P03275 | 81-97 | BC | S | 7.1 | 0.37 | -- | 100* | 89 | 0.91 | 1 | |||||||||
| 81P03276 | 97-152 | C | S | 7.2 | 0.28 | -- | 100* | 91 | 0.96 | 1 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.87 | (NA) | |
| Clay, carbonate free, Weighted Average | 25 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 25 | % wt | |
| LE, Whole Soil, Summed to 1m | 3 | cm/m | |
| Weighted averages based on control section: 25-100 cm | |||