| *** Taxonomy Characterization Data *** |
| Pedon ID: 81CA035006 | ( Lassen, California ) | Print Date: Jul 29 2025 4:22PM |
| Sampled as on Aug 1, 1981: | Tunnison ; Very-fine, montmorillonitic, mesic Entic Chromoxerert |
| Revised to correlated: | Tunnison ; Very-fine, smectitic, mesic Aridic Haploxererts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP81CA280 LASSEN COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1981CA035006 Lat: 40° 39' 47.54" north Long: 120° 28' 6.76" west MLRA: 23 | National Soil Survey Center | |
| - | Pedon No. | 81P0698 | 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 | ||||||||||
| 81P04175 | 0-13 | A1 | S | 64.4 | 7.3 | 0.45 | 39 | 1.10 | 0.060 | 60 | |||
| 81P04176 | 13-38 | E | S | 64.8 | 6.4 | 0.45 | 3 | 1.14 | 0.174 | 1 | |||
| 81P04177 | 38-69 | A2 | S | 63.0 | 9.4 | 0.47 | 2 | 1.18 | 0.169 | tr | |||
| 81P04178 | 69-79 | A3 | S | 54.1 | 5.2 | 0.55 | 7 | 1.13 | 0.151 | 1 | |||
| 81P04179 | 79-97 | R1 | S | 3.1 | 2.2 | 10.39 | 86 | 28 | |||||
| 81P04181 | 38-69 | S | 63.8 | 10.3 | 0.47 | 37 | 61 | ||||||
| 81P04182 | 38-69 | S | 63.1 | 10.3 | 0.49 | 37 | 61 | ||||||
| 81P04183 | 38-69 | S | 62.4 | 11.5 | 0.46 | 37 | 61 | ||||||
| 81P04184 | 38-69 | S | 53.3 | 4.7 | 0.54 | 38 | 61 | ||||||
| 81P04185 | 38-69 | S | 50.3 | 6.8 | 0.55 | 39 | 61 | ||||||
| 81P04186 | 38-69 | S | 63.0 | 10.3 | 0.45 | 38 | 61 | ||||||
| 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 | |||||||||||||
| 81P04175 | 0-13 | A1 | S | 7.2 | 0.71 | -- | 100* | 92 | 0.79 | 1 | |||||||||
| 81P04176 | 13-38 | E | S | 7.1 | 0.65 | -- | 100* | 93 | 0.79 | 2 | |||||||||
| 81P04177 | 38-69 | A2 | S | 7.6 | 0.58 | -- | 100* | 94 | 0.82 | 3 | |||||||||
| 81P04178 | 69-79 | A3 | S | 7.7 | 0.45 | -- | 100* | 97 | 1.01 | 5 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.85 | (NA) | |
| Clay, carbonate free, Weighted Average | 62 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 3 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 62 | % wt | |
| Weighted averages based on control section: 25-79 cm | |||