| *** Taxonomy Characterization Data *** |
| Pedon ID: 90MT097008 | ( Sweet Grass, Montana ) | Print Date: Nov 11 2024 9:29PM |
| Sampled as on Apr 29, 1990: | Beaverton ; Loamy-skeletal, mixed |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | RP91MT068 SWEET GRASS COUNTY BULK DENSITY | Natural Resources Conservation Service |
| - | Site ID | S1990MT097008 Lat: 46° 8' 56.70" north Long: 110° 0' 27.91" west | National Soil Survey Center | |
| - | Pedon No. | 91P0258 | 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 | ||||||||||||
| 91P01576 | 0-13 | A | S | 22.9 | 0.48 | 47 | 13 | ||||||
| 91P01577 | 13-30 | Bt1 | S | 45.1 | 0.40 | 63 | 37 | ||||||
| 91P01578 | 30-56 | Bt2 | S | 19.3 | 0.54 | 84 | 45 | ||||||
| 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 | ||||||||||||||
| 91P01576 | 0-13 | A | S | 6.5 | 2.66 | 90 | 74 | 0.77 | -- | ||||||||||
| 91P01577 | 13-30 | Bt1 | S | 6.7 | 1.81 | 91 | 82 | 0.70 | -- | ||||||||||
| 91P01578 | 30-56 | Bt2 | S | 7.4 | 0.81 | 99 | 84 | 0.85 | -- | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.79 | (NA) | |
| Clay, carbonate free, Weighted Average | 30 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 76 | % wt | |
| Volume, >2mm, Weighted Average | 42 | % vol | |
| Clay, total, Weighted Average | 30 | % wt | |
| Weighted averages based on control section: 13-56 cm | |||