| *** Taxonomy Characterization Data *** |
| Pedon ID: 90MT015790 | ( Chouteau, Montana ) | Print Date: Nov 11 2024 9:37PM |
| Sampled as on Sep 29, 1990: | Laceycreek ; Fine-loamy, mixed Pachic Udic Argiborolls |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP92MT026 CHOUTEAU COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1990MT015790 Lat: 47° 33' 43.00" north Long: 110° 34' 2.99" west | National Soil Survey Center | |
| - | Pedon No. | 92P0127 | 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 | 8D1 | 7B1a2 | |||||||||||
| 92P00868 | 0-13 | Ap | S | 21.5 | 0.60 | 45 | 6 | ||||||
| 92P00869 | 13-46 | A | S | 22.4 | 0.62 | 46 | 10 | ||||||
| 92P00870 | 46-66 | Bt1 | S | 23.3 | 0.50 | 53 | 15 | 36 | |||||
| 92P00871 | 66-112 | Bt2 | S | 23.1 | 0.49 | 40 | 8 | ||||||
| 92P00872 | 112-152 | 2BC | S | 12.6 | 0.58 | 66 | 13 | ||||||
| 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 | 5C1 | 5C3 | 8D1 | 5D2 | ||||||||||||||
| 92P00868 | 0-13 | Ap | S | 5.9 | 4.07 | 93 | 75 | 1.41 | 1 | ||||||||||
| 92P00869 | 13-46 | A | S | 6.5 | 3.47 | 97 | 79 | 1.50 | 1 | ||||||||||
| 92P00870 | 46-66 | Bt1 | S | 6.9 | 1.11 | 98 | 86 | 1.14 | 1 | ||||||||||
| 92P00871 | 66-112 | Bt2 | S | 7.2 | 0.74 | 100* | 88 | 1.15 | 1 | ||||||||||
| 92P00872 | 112-152 | 2BC | S | 7.3 | 0.62 | 100* | 90 | 1.67 | 1 | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 1.14 | (NA) | |
| Clay, carbonate free, Weighted Average | 23 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 45 | % wt | |
| Volume, >2mm, Weighted Average | 11 | % vol | |
| Clay, total, Weighted Average | 23 | % wt | |
| Weighted averages based on control section: 46-96 cm | |||