| *** Taxonomy Characterization Data *** |
| Pedon ID: 91CA011002 | ( Colusa, California ) | Print Date: Dec 17 2024 10:22PM |
| Sampled as on Apr 29, 1991: | Contra Costa T |
| Revised to correlated: | Contra Costa ; Clayey-skeletal, mixed, superactive, thermic Typic Palexeralfs |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP91CA178 1992 TOUR | Natural Resources Conservation Service |
| - | Site ID | S1991CA011002 Lat: 39° 17' 12.00" north Long: 122° 18' 28.00" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 91P0759 | 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 | ||||||||||
| 91P04345 | 1-6 | A1 | S | 18.2 | 7.4 | 0.49 | 34 | 1.49 | 0.015 | 2 | |||
| 91P04346 | 6-14 | A2 | S | 21.3 | 8.3 | 0.41 | 44 | 1.65 | 0.010 | 14 | |||
| 91P04347 | 14-34 | Bt1 | S | 40.9 | 20.3 | 0.32 | 43 | 1.52 | 0.039 | 18 | |||
| 91P04348 | 34-78 | Bt2 | S | 40.7 | 23.9 | 0.36 | 54 | 1.54 | 0.038 | 27 | |||
| 91P04349 | 78-110 | Bt3 | S | 52.0 | 31.0 | 0.35 | 13 | 1.48 | 0.096 | ||||
| 91P04350 | 110-136 | 2C | S | 42.1 | 16.0 | 0.35 | 92 | 86 | |||||
| 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 | 6A2d | 8J | 5C1 | 5C3 | 6S4 | 8D1 | 5D2 | |||||||||||
| 91P04344 | 0-1 | Oe | S | 6.9 | 9.51 | 6.64 | 0.08 | 13 | |||||||||||
| 91P04345 | 1-6 | A1 | S | 7.1 | 2.19 | 1.90 | 0.29 | 0.06 | 96 | 80 | 16 | 1.02 | 1 | ||||||
| 91P04346 | 6-14 | A2 | S | 6.7 | 1.39 | 1.23 | 0.25 | 0.05 | 98 | 81 | 13 | 0.85 | 1 | ||||||
| 91P04347 | 14-34 | Bt1 | S | 6.8 | 0.64 | 0.62 | 0.33 | 0.04 | 94 | 81 | 23 | 0.57 | 1 | ||||||
| 91P04348 | 34-78 | Bt2 | S | 6.3 | 0.40 | 0.43 | 0.41 | 0.04 | 93 | 77 | 22 | 0.63 | 1 | ||||||
| 91P04349 | 78-110 | Bt3 | S | 6.2 | 0.30 | 0.33 | 0.39 | 0.04 | 94 | 82 | 27 | 0.73 | 3 | ||||||
| 91P04350 | 110-136 | 2C | S | 6.8 | 0.19 | 0.31 | 0.31 | 0.03 | 97 | 86 | 25 | 0.93 | 3 | ||||||
| 91P04351 | 0-0 | S | 21.59 | 18.90 | |||||||||||||||
| 91P04352 | 0-0 | S | 8.02 | 7.25 | |||||||||||||||
| 91P04353 | 0-0 | S | 2.84 | 2.60 | |||||||||||||||
| 91P04354 | 0-0 | S | 1.36 | 1.13 | |||||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, total, Weighted Average | 40 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 49 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.61 | (NA) | |
| Clay, carbonate free, Weighted Average | 40 | % wt | |
| Weighted averages based on control section: 13-64 cm | |||