| *** Taxonomy Characterization Data *** |
| Pedon ID: 87IA141001 | ( O'Brien, Iowa ) | Print Date: Dec 6 2025 3:13AM |
| Sampled as on Dec 1, 1989: | Sac ; Fine-silty, mixed, mesic Typic Hapludoll |
| Revised to correlated on Dec 1, 1989: | Sac ; Fine-loamy, mixed, superactive, mesic Typic Hapludoll |
| United States Department of Agriculture | ||||
| SSL | - | Project | RP88IA156 EROSION 6 | Natural Resources Conservation Service |
| - | Site ID | 87IA141001 Lat: 43° 8' 40.00" north Long: 95° 37' 0.00" west MLRA: 107 | National Soil Survey Center | |
| - | Pedon No. | 88P0638 | 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 | |||||||||||
| 88P03375 | 0-18 | Ap | S | 34.2 | 0.46 | 3 | -- | ||||||
| 88P03376 | 18-36 | Bw1 | S | 31.7 | 0.45 | 5 | -- | ||||||
| 88P03377 | 36-56 | Bw2 | S | 28.2 | -- | 0.42 | 15 | -- | |||||
| 88P03378 | 56-74 | 2BC1 | S | 23.8 | 2.3 | 0.42 | 25 | -- | |||||
| 88P03379 | 74-91 | 2BC2 | S | 24.5 | 2.8 | 0.42 | 24 | -- | |||||
| 88P03380 | 91-107 | 2C1 | S | 24.8 | 3.4 | 0.44 | 24 | -- | |||||
| 88P03381 | 107-122 | 2C2 | S | 25.2 | 25.1 | 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 | 6E1g | 5C1 | 5C3 | 8D1 | 5D2 | |||||||||||||
| 88P03375 | 0-18 | Ap | S | 7.0 | 2.04 | 96 | 77 | 0.86 | -- | ||||||||||
| 88P03376 | 18-36 | Bw1 | S | 6.8 | 0.97 | 100* | 84 | 0.84 | -- | ||||||||||
| 88P03377 | 36-56 | Bw2 | S | 7.7 | 0.43 | 5 | 100* | 100 | 0.75 | -- | |||||||||
| 88P03378 | 56-74 | 2BC1 | S | 7.9 | 0.16 | 28 | 100* | 100 | 0.56 | -- | |||||||||
| 88P03379 | 74-91 | 2BC2 | S | 8.0 | 0.13 | 29 | 100* | 100 | 0.51 | -- | |||||||||
| 88P03380 | 91-107 | 2C1 | S | 8.1 | 0.10 | 30 | 100* | 100 | 0.48 | -- | |||||||||
| 88P03381 | 107-122 | 2C2 | S | 8.2 | 0.07 | 31 | 100* | 100 | -- | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.67 | (NA) | |
| Clay, carbonate free, Weighted Average | 25 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 19 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 26 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||