| *** Taxonomy Characterization Data *** |
| Pedon ID: 81MT087579 | ( Rosebud, Montana ) | Print Date: Apr 19 2025 5:21AM |
| Sampled as on Jul 1, 1981: | Brunelda ; Fine, montmorillonitic Borollic Camborthid |
| Revised to correlated: | Brunelda ; Fine, smectitic, frigid Cambic Gypsiorthids |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP83MT220 ROSEBUD COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1981MT087579 Lat: 46° 41' 23.99" north Long: 107° 16' 60.00" west MLRA: 58A | National Soil Survey Center | |
| - | Pedon No. | 83P0711 | 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 | |||||||||||
| 83P03518 | 0-2 | A | S | 31.2 | 4.5 | 0.46 | 6 | 2 | |||||
| 83P03519 | 2-15 | Bw | S | 41.0 | 6.9 | 0.41 | 2 | tr | |||||
| 83P03520 | 15-33 | Byz | S | 39.8 | 0.56 | 6 | tr | ||||||
| 83P03521 | 33-50 | Bz1 | S | 47.0 | 12.2 | 0.53 | 1 | tr | |||||
| 83P03522 | 50-102 | Bz2 | S | 46.3 | 20.5 | 0.51 | tr | -- | |||||
| 83P03523 | 102-152 | BC | S | 47.8 | 20.4 | 0.55 | tr | -- | |||||
| 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 | 8A3a | 5D2 | ||||||||||||
| 83P03518 | 0-2 | A | S | 7.7 | 0.89 | tr | 100* | 100 | 0.96 | 2.97 | 2 | ||||||||
| 83P03519 | 2-15 | Bw | S | 7.8 | 0.75 | tr | 100* | 100 | 0.81 | 2.56 | 2 | ||||||||
| 83P03520 | 15-33 | Byz | S | 8.0 | 0.41 | tr | 100* | 100 | 0.75 | 8.04 | 24 | ||||||||
| 83P03521 | 33-50 | Bz1 | S | 8.1 | 0.39 | tr | 100* | 100 | 0.79 | 12.59 | 41 | ||||||||
| 83P03522 | 50-102 | Bz2 | S | 7.8 | 0.41 | tr | 100* | 100 | 0.86 | 13.70 | 57 | ||||||||
| 83P03523 | 102-152 | BC | S | 7.3 | 0.32 | -- | 100* | 100 | 0.87 | 13.53 | 46 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.83 | (NA) | |
| Clay, carbonate free, Weighted Average | 46 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 46 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||