| *** Taxonomy Characterization Data *** |
| Pedon ID: S1973CA079005 | ( San Luis Obispo, California ) | Print Date: Dec 4 2024 3:28AM |
| Sampled as on May 30, 1973: | Sween |
| Revised to correlated: | SWEEN ; Fine-silty, mixed Typic Argixerolls |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL73CA004 PASO ROBLES | Natural Resources Conservation Service |
| - | Site ID | S1973CA079005 Lat: 35° 46' 49.84" north Long: 120° 58' 11.57" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 73C0033 | 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 | ||||||||||
| 73C00222 | 0-26 | A | S | 19.6 | 15.3 | 0.38 | 38 | 1 | |||||
| 73C00223 | 26-53 | Bt1 | S | 30.4 | 20.8 | 0.41 | 8 | 1.39 | 0.069 | tr | |||
| 73C00224 | 53-74 | Bt2 | S | 26.3 | 0.43 | 8 | 1.39 | 0.052 | 1 | ||||
| 73C00225 | 74-100 | C | S | 25.8 | 0.56 | 31 | 1.30 | 0.049 | 17 | ||||
| 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 | 5C1 | 5C3 | 8D1 | 5D2 | ||||||||||||||
| 73C00222 | 0-26 | A | S | 6.2 | 0.98 | 100* | 100 | 1.08 | 2 | ||||||||||
| 73C00223 | 26-53 | Bt1 | S | 5.7 | 0.22 | 91 | 100 | 0.98 | 2 | ||||||||||
| 73C00224 | 53-74 | Bt2 | S | 5.9 | 0.17 | 100* | 100 | 0.97 | 2 | ||||||||||
| 73C00225 | 74-100 | C | S | 5.9 | 0.11 | 100* | 100 | 1.19 | 3 | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.98 | (NA) | |
| Clay, carbonate free, Weighted Average | 29 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 8 | % wt | |
| Volume, >2mm, Weighted Average | 1 | % vol | |
| Clay, total, Weighted Average | 29 | % wt | |
| Weighted averages based on control section: 26-74 cm | |||