| *** Taxonomy Characterization Data *** |
| Pedon ID: 90MT097001 | ( Sweet Grass, Montana ) | Print Date: Apr 28 2025 1:22AM |
| Sampled as on Mar 1, 1990: | Beaverton ; Loamy-skeletal, mixed Typic Argiboroll |
| Revised to correlated: | Beaverton ; Loamy-skeletal, mixed, superactive Typic Argiborolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | RP90MT155 SWEET GRASS COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1990MT097001 Lat: 45° 50' 13.00" north Long: 109° 56' 35.00" west | National Soil Survey Center | |
| - | Pedon No. | 90P0637 | 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 | ||||||||||||
| 90P03790 | 0-10 | A | S | 21.4 | 0.54 | 34 | -- | ||||||
| 90P03791 | 10-23 | Bt1 | S | 38.5 | 0.39 | 40 | 5 | ||||||
| 90P03792 | 23-38 | Bt2 | S | 24.8 | 0.47 | 52 | 10 | ||||||
| 90P03793 | 38-48 | Btk | S | 7.7 | 0.60 | 71 | 10 | ||||||
| 90P03794 | 48-76 | 2Bk | S | 1.9 | 1.00 | 86 | 15 | ||||||
| 90P03795 | 76-102 | 2C | S | 2.3 | 1.17 | 83 | 25 | ||||||
| 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 | |||||||||||||
| 90P03790 | 0-10 | A | S | 7.1 | 3.59 | 100* | 92 | 1.13 | -- | ||||||||||
| 90P03791 | 10-23 | Bt1 | S | 7.5 | 1.66 | 100* | 92 | 0.79 | -- | ||||||||||
| 90P03792 | 23-38 | Bt2 | S | 8.0 | 1.24 | 1 | 100* | 95 | 0.87 | -- | |||||||||
| 90P03793 | 38-48 | Btk | S | 8.2 | 0.64 | 3 | 100* | 99 | 1.31 | 7 | |||||||||
| 90P03794 | 48-76 | 2Bk | S | 8.2 | 0.12 | 7 | 100* | 100 | 2.47 | -- | |||||||||
| 90P03795 | 76-102 | 2C | S | 8.2 | 0.21 | 7 | 100* | 100 | 2.22 | -- | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.96 | (NA) | |
| Clay, carbonate free, Weighted Average | 25 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 53 | % wt | |
| Volume, >2mm, Weighted Average | 8 | % vol | |
| Clay, total, Weighted Average | 25 | % wt | |
| Weighted averages based on control section: 10-48 cm | |||