| *** Taxonomy Characterization Data *** |
| Pedon ID: 78CA033029 | ( Lake, California ) | Print Date: Nov 21 2024 3:17PM |
| Sampled as on Jun 29, 1978: | Montaba V ; Clayey, serpentinitic, thermic Lithic Argixeroll |
| Revised to correlated: | Okiota ; Loamy, magnesic, thermic Lithic Argixerolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78CA178 NAPA AND LAKE COUNTIES | Natural Resources Conservation Service |
| - | Site ID | S1978CA033029 Lat: 39° 6' 33.54" north Long: 122° 55' 34.90" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 78P0464 | 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 | |||||||||||
| 78P02604 | 0-3 | A1 | S | 13.1 | 1.18 | 61 | 1.10 | 14 | |||||
| 78P02605 | 3-15 | A2 | S | 22.8 | 0.57 | 55 | 1.49 | 0.015 | 14 | ||||
| 78P02606 | 15-40 | Bt | S | 31.9 | 0.47 | 54 | 1.37 | 0.023 | 19 | ||||
| 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 | 5D2 | |||||||||||||
| 78P02604 | 0-3 | A1 | S | 6.9 | 2.86 | -- | 96 | 81 | 1.37 | -- | |||||||||
| 78P02605 | 3-15 | A2 | S | 7.3 | 0.60 | -- | 96 | 85 | 0.84 | -- | |||||||||
| 78P02606 | 15-40 | Bt | S | 7.4 | 0.44 | tr | 100* | 90 | 0.68 | -- | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.68 | (NA) | |
| Clay, carbonate free, Weighted Average | 32 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 54 | % wt | |
| Volume, >2mm, Weighted Average | 19 | % vol | |
| Clay, total, Weighted Average | 32 | % wt | |
| Weighted averages based on control section: 15-40 cm | |||