| *** Taxonomy Characterization Data *** |
| Pedon ID: 78CA033021 | ( Lake, California ) | Print Date: Apr 27 2025 10:45PM |
| Sampled as on Jul 1, 1978: | Henneke ; Clayey-skeletal, serpentinitic, thermic Lithic Argixeroll |
| Revised to correlated: | Henneke ; Clayey-skeletal, magnesic, thermic Lithic Argixerolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78CA178 NAPA AND LAKE COUNTIES | Natural Resources Conservation Service |
| - | Site ID | S1978CA033021 Lat: 38° 45' 50.58" north Long: 122° 35' 49.86" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 78P0456 | 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 | |||||||||||
| 78P02553 | 0-9 | A | S | 18.5 | 1.08 | 46 | 1.07 | 0.023 | 4 | ||||
| 78P02554 | 9-26 | Bt1 | S | 32.9 | 0.79 | 47 | 1.05 | 0.057 | 17 | ||||
| 78P02555 | 26-41 | Bt2 | S | 33.0 | 0.95 | 65 | 1.07 | 0.050 | 42 | ||||
| 78P02556 | 41-50 | Bt3 | S | 21.6 | 1.32 | 82 | 1.10 | 60 | |||||
| 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 | |||||||||||||
| 78P02553 | 0-9 | A | S | 7.3 | 1.85 | -- | 96 | 80 | 1.13 | tr | |||||||||
| 78P02554 | 9-26 | Bt1 | S | 7.4 | 1.27 | -- | 97 | 86 | 0.84 | -- | |||||||||
| 78P02555 | 26-41 | Bt2 | S | 7.5 | 0.74 | -- | 100* | 90 | 0.88 | tr | |||||||||
| 78P02556 | 41-50 | Bt3 | S | 7.5 | 0.47 | -- | 100* | 90 | 1.03 | -- | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.89 | (NA) | |
| Clay, carbonate free, Weighted Average | 30 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 61 | % wt | |
| Volume, >2mm, Weighted Average | 36 | % vol | |
| Clay, total, Weighted Average | 30 | % wt | |
| Weighted averages based on control section: 9-50 cm | |||