| *** Taxonomy Characterization Data *** |
| Pedon ID: 74CA041001 | ( Marin, California ) | Print Date: Nov 11 2024 8:37PM |
| Sampled as on May 30, 1974: | Unnamed |
| Revised to correlated: | SHERIDAN ; Coarse-loamy, mixed Pachic Xerumbrepts |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL74CA002 MARIN CO | Natural Resources Conservation Service |
| - | Site ID | S1974CA041001 Lat: 38° 5' 12.00" north Long: 122° 56' 35.00" west MLRA: 15 | National Soil Survey Center | |
| - | Pedon No. | 74C0012 | 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 | |||||||||||
| 74C00078 | 0-8 | A1 | S | 6.3 | 2.71 | 80 | 6 | ||||||
| 74C00079 | 8-20 | A2 | S | 9.2 | 0.76 | 76 | 0.98 | 0.018 | 11 | ||||
| 74C00080 | 20-40 | A3 | S | 9.0 | 0.63 | 77 | 12 | ||||||
| 74C00081 | 40-66 | A4 | S | 8.9 | 0.60 | 87 | 1.06 | 0.022 | 33 | ||||
| 74C00082 | 66-84 | AC | S | 8.9 | 0.62 | 85 | 33 | ||||||
| 74C00083 | 84-107 | C | S | 4.8 | 1.04 | 82 | 1.59 | 0.015 | 24 | ||||
| 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 | 5A3b | 8D1 | 5G1 | 5D2 | ||||||||||||
| 74C00078 | 0-8 | A1 | S | 4.2 | 9.95 | 16 | 13 | 6.8 | 4.43 | 1.08 | 32 | 1 | |||||||
| 74C00079 | 8-20 | A2 | S | 5.0 | 3.44 | 24 | 18 | 4.5 | 1.71 | 0.49 | 18 | 1 | |||||||
| 74C00080 | 20-40 | A3 | S | 5.4 | 2.49 | 20 | 15 | 3.3 | 1.42 | 0.37 | 24 | 2 | |||||||
| 74C00081 | 40-66 | A4 | S | 5.3 | 1.67 | 27 | 17 | 2.8 | 0.99 | 0.31 | 14 | 2 | |||||||
| 74C00082 | 66-84 | AC | S | 5.2 | 1.54 | 22 | 13 | 2.1 | 0.99 | 0.24 | 10 | 2 | |||||||
| 74C00083 | 84-107 | C | S | 5.2 | 0.69 | 21 | 14 | 2.1 | 1.71 | 0.44 | 19 | 2 | |||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 1.1 | (NA) | |
| Clay, carbonate free, Weighted Average | 9 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 84 | % wt | |
| Volume, >2mm, Weighted Average | 31 | % vol | |
| Clay, total, Weighted Average | 9 | % wt | |
| Weighted averages based on control section: 25-84 cm | |||