| *** Taxonomy Characterization Data *** |
| Pedon ID: 91MT049012 | ( Lewis and Clark, Montana ) | Print Date: May 20 2024 9:05AM |
| Sampled as on Oct 16, 1978: | Holter ; Loamy-skeletal, mixed Typic Argiborolls |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP92MT126 LEWIS AND CLARK COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1991MT049012 Lat: 46° 55' 2.64" north Long: 112° 11' 36.20" west | National Soil Survey Center | |
| - | Pedon No. | 92P0503 | 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 | ||||||||||
| 92P02926 | 0-20 | A1 | S | 17.4 | 7.5 | 0.71 | 66 | 23 | |||||
| 92P02927 | 20-30 | A2 | S | 17.6 | 10.0 | 0.49 | 83 | 53 | |||||
| 92P02928 | 30-71 | Bt1 | S | 16.2 | 8.6 | 0.46 | 87 | 62 | |||||
| 92P02929 | 71-107 | Bt2 | S | 17.7 | 8.3 | 0.43 | 84 | 61 | |||||
| 92P02930 | 107-152 | Bk | S | 16.4 | 0.3 | 0.44 | 87 | 67 | |||||
| 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 | 6S4 | 8D1 | 5D2 | ||||||||||||
| 92P02926 | 0-20 | A1 | S | 6.0 | 4.89 | 100* | 69 | 17 | 0.40 | -- | |||||||||
| 92P02927 | 20-30 | A2 | S | 6.2 | 1.18 | 90 | 77 | 17 | 0.91 | -- | |||||||||
| 92P02928 | 30-71 | Bt1 | S | 6.4 | 0.69 | 92 | 76 | 17 | 0.85 | 1 | |||||||||
| 92P02929 | 71-107 | Bt2 | S | 6.8 | 0.52 | 97 | 81 | 14 | 0.77 | -- | |||||||||
| 92P02930 | 107-152 | Bk | S | 8.0 | 0.23 | 8 | 100* | 100 | 35 | 0.65 | -- | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.83 | (NA) | |
| Clay, carbonate free, Weighted Average | 16 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 86 | % wt | |
| Volume, >2mm, Weighted Average | 62 | % vol | |
| Clay, total, Weighted Average | 16 | % wt | |
| Weighted averages based on control section: 30-81 cm | |||