| *** Taxonomy Characterization Data *** |
| Pedon ID: 93CA011006 | ( Colusa, California ) | Print Date: Jan 30 2025 10:16AM |
| Sampled as on Sep 22, 1993: | Wekoda Low ; Fine, montmorillonitic, thermic Aquic Haploxerert |
| Revised to correlated: | Willows ; Fine, smectitic, thermic Sodic Endoaquerts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP94CA008 VERTISOL ST | Natural Resources Conservation Service |
| - | Site ID | 93CA011006 Lat: 39° 12' 35.00" north Long: 122° 3' 53.00" west MLRA: 17 | National Soil Survey Center | |
| - | Pedon No. | 94P0057 | 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 | ||||||||||
| 94P00491 | 0-13 | Ap1 | S | 49.8 | 20.8 | 0.34 | 1 | -- | |||||
| 94P00492 | 13-32 | Ap2 | S | 49.0 | 22.2 | 0.37 | 1 | 1.49 | 0.084 | -- | |||
| 94P00493 | 32-53 | A | S | 52.2 | 25.8 | 0.36 | 1 | 1.47 | 0.082 | -- | |||
| 94P00494 | 53-77 | Bss | S | 52.6 | 25.1 | 0.35 | 1 | 1.47 | 0.084 | -- | |||
| 94P00495 | 77-99 | Bssy1 | S | 53.1 | 17.1 | 0.35 | 1 | 1.46 | 0.078 | -- | |||
| 94P00496 | 99-121 | Bssy2 | S | 52.5 | 14.6 | 0.35 | 2 | 1.49 | 0.086 | -- | |||
| 94P00497 | 121-170 | Bkssy1 | S | 55.1 | 10.8 | 0.36 | 2 | 1.47 | 0.085 | -- | |||
| 94P00498 | 170-186 | Bkssy2 | S | 56.4 | 8.2 | 0.37 | 3 | 1.44 | 0.083 | -- | |||
| 94P00499 | 186-206 | Bssy'1 | S | 47.1 | 3.5 | 0.41 | 5 | 1.38 | 0.095 | -- | |||
| 94P00500 | 206-220 | Bssy'2 | S | 65.1 | 22.2 | 0.34 | 2 | 1.37 | 0.123 | -- | |||
| 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 | ||||||||||||
| 94P00491 | 0-13 | Ap1 | S | 7.7 | 1.52 | 97 | 92 | 0.77 | 0.90 | 4 | |||||||||
| 94P00492 | 13-32 | Ap2 | S | 8.6 | 0.86 | -- | 100* | 95 | 0.76 | 1.13 | 18 | ||||||||
| 94P00493 | 32-53 | A | S | 8.4 | 0.62 | -- | 100* | 97 | 0.68 | 3.00 | 30 | ||||||||
| 94P00494 | 53-77 | Bss | S | 8.2 | 0.45 | -- | 100* | 98 | 0.65 | 7.30 | 30 | ||||||||
| 94P00495 | 77-99 | Bssy1 | S | 8.0 | 0.38 | -- | 100* | 98 | 0.63 | 9.90 | 32 | ||||||||
| 94P00496 | 99-121 | Bssy2 | S | 8.1 | 0.27 | -- | 100* | 99 | 0.60 | 10.80 | 36 | ||||||||
| 94P00497 | 121-170 | Bkssy1 | S | 8.1 | 0.26 | tr | 100* | 100 | 0.58 | 11.40 | 35 | ||||||||
| 94P00498 | 170-186 | Bkssy2 | S | 8.1 | 0.23 | 2 | 100* | 100 | 0.60 | 11.30 | 37 | ||||||||
| 94P00499 | 186-206 | Bssy'1 | S | 8.2 | 0.17 | 1 | 100* | 100 | 0.66 | 12.40 | 34 | ||||||||
| 94P00500 | 206-220 | Bssy'2 | S | 8.5 | 0.17 | 4 | 100* | 100 | 0.57 | 8.45 | 43 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.66 | (NA) | |
| Clay, carbonate free, Weighted Average | 52 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 52 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||