| *** Taxonomy Characterization Data *** | 
| Pedon ID: S1970CO105001 | ( Rio Grande, Colorado ) | Print Date: Oct 31 2025 12:17AM | 
| Sampled as on May 30, 1970: | HOOPER | 
| Revised to correlated: | unnamed ; Fine, montmorillonitic, frigid Typic Natrargids | 
| United States Department of Agriculture | ||||
| SSL | - | Project | NL70CO008 SAN LUIS BASIN | Natural Resources Conservation Service | 
| - | Site ID | S1970CO105001 Lat: 37° 29' 24.07" north Long: 106° 3' 15.12" west | National Soil Survey Center | |
| - | Pedon No. | 70C0084 | 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 | 4A1d | ||||||||||
| 70C00533 | 0-10 | E | S | 12.1 | 4.0 | 0.33 | 59 | -- | |||||
| 70C00534 | 10-31 | Bt | S | 46.0 | 14.0 | 0.37 | 32 | 1.44 | 0.053 | -- | |||
| 70C00535 | 31-46 | Bk1 | S | 29.4 | 13.0 | 0.39 | 34 | 1.24 | 0.124 | 1 | |||
| 70C00536 | 46-61 | Bk2 | S | 13.8 | 0.69 | 59 | 2 | ||||||
| 70C00537 | 61-77 | 2Bk | S | 10.7 | 0.70 | 66 | 1.59 | 0.010 | 4 | ||||
| 70C00538 | 77-100 | 3Bk | S | 1.5 | 2.33 | 95 | 17 | ||||||
| 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 | ||||||||||||
| 70C00533 | 0-10 | E | S | 10.4 | 0.16 | 9 | 100* | 100 | 0.74 | 14.73 | 81 | ||||||||
| 70C00534 | 10-31 | Bt | S | 10.0 | 0.38 | 17 | 100* | 100 | 0.44 | 8.65 | 87 | ||||||||
| 70C00535 | 31-46 | Bk1 | S | 10.2 | 0.22 | 17 | 100* | 100 | 0.52 | 11.36 | 79 | ||||||||
| 70C00536 | 46-61 | Bk2 | S | 10.3 | 0.16 | 4 | 100* | 100 | 1.11 | 8.39 | 81 | ||||||||
| 70C00537 | 61-77 | 2Bk | S | 10.2 | 0.05 | 3 | 100* | 100 | 1.29 | 6.35 | 75 | ||||||||
| 70C00538 | 77-100 | 3Bk | S | 10.0 | tr | 100* | 100 | 5.20 | 1.83 | 66 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, total, Weighted Average | 20 | % wt | |
| Volume, >2mm, Weighted Average | 5 | % vol | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 59 | % wt | |
| Clay, carbonate free, Weighted Average | 15 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average | 2.05 | (NA) | |
| Weighted averages based on control section: 10-100 cm | |||