| *** Taxonomy Characterization Data *** |
| Pedon ID: 78CA055001 | ( Napa, California ) | Print Date: Nov 23 2024 9:21PM |
| Sampled as on May 1, 1978: | Maxwell ; Fine, montmorillonitic, thermic Typic Pelloxerert |
| Revised to correlated: | Maxwell ; Fine, smectitic, thermic Typic Haploxererts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78CA178 NAPA AND LAKE COUNTIES | Natural Resources Conservation Service |
| - | Site ID | S1978CA055001 Lat: 38° 37' 53.59" north Long: 122° 23' 13.84" west MLRA: 14 | National Soil Survey Center | |
| - | Pedon No. | 78P0455 | 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 | 4A1d | |||||||||||
| 78P02547 | 0-5 | A1 | S | 50.8 | 0.45 | 8 | 1.30 | 1 | |||||
| 78P02548 | 5-33 | A2 | S | 52.7 | 0.43 | 8 | 1.30 | 0.136 | 1 | ||||
| 78P02549 | 33-77 | A3 | S | 51.9 | 0.43 | 9 | 1.30 | 1 | |||||
| 78P02550 | 77-107 | A4 | S | 48.3 | 0.48 | 10 | 1.33 | 0.121 | 1 | ||||
| 78P02551 | 107-144 | B | S | 39.1 | 0.59 | 6 | 1.26 | 0.138 | tr | ||||
| 78P02552 | 144-178 | Bk | S | 42.6 | 0.54 | 6 | 1.33 | 0.122 | -- | ||||
| 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 | % | |||||||||||
| 8C1a | 6A1c | 6E1b | 5C1 | 5C3 | 8D1 | 8A1a | 5D2 | ||||||||||||
| 78P02547 | 0-5 | A1 | S | 7.5 | 1.91 | tr | 100* | 96 | 0.85 | tr | |||||||||
| 78P02548 | 5-33 | A2 | S | 8.0 | 1.00 | tr | 100* | 99 | 0.81 | tr | |||||||||
| 78P02549 | 33-77 | A3 | S | 8.3 | 0.82 | tr | 100* | 99 | 0.77 | 2 | |||||||||
| 78P02550 | 77-107 | A4 | S | 8.6 | 0.84 | tr | 100* | 100 | 0.79 | 1.14 | 8 | ||||||||
| 78P02551 | 107-144 | B | S | 8.3 | 0.64 | tr | 100* | 100 | 0.88 | 6.15 | 12 | ||||||||
| 78P02552 | 144-178 | Bk | S | 8.5 | 0.54 | 10 | 100* | 100 | 0.72 | 3.31 | 12 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.78 | (NA) | |
| Clay, carbonate free, Weighted Average | 51 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 9 | % wt | |
| Volume, >2mm, Weighted Average | 1 | % vol | |
| Clay, total, Weighted Average | 51 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||