| *** Taxonomy Characterization Data *** |
| Pedon ID: 78SD053010 | ( Gregory, South Dakota ) | Print Date: Dec 17 2024 10:17PM |
| Sampled as on Jun 1, 1978: | Lakoma ; Fine, montmorillonitic, mesic Typic Ustochrept |
| Revised to correlated: | Lakoma ; Fine, mixed, mesic Typic Ustochrepts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP78SD136 GREGORY COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1978SD053010 Lat: 43° 23' 40.00" north Long: 99° 12' 28.00" west MLRA: 63B | National Soil Survey Center | |
| - | Pedon No. | 78P0363 | 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 | ||||||||||
| 78P01975 | 0-5 | A | S | 67.8 | 0.8 | 0.36 | 1 | 1.16 | 0.054 | tr | |||
| 78P01976 | 5-25 | B1 | S | 70.3 | 3.3 | 0.34 | 56 | 36 | |||||
| 78P01977 | 25-43 | B2 | S | 68.7 | 8.7 | 0.33 | 84 | 1.27 | 0.019 | 70 | |||
| 78P01978 | 43-74 | C | S | 65.2 | 7.4 | 0.33 | 69 | 1.23 | 0.034 | 51 | |||
| 78P01979 | 74-109 | Cr1 | S | 31.5 | 5.0 | 0.73 | 93 | 88 | |||||
| 78P01980 | 109-140 | Cr2 | S | 44.6 | 4.3 | 0.53 | 4 | -- | |||||
| 78P01981 | 0-5 | A | S | 65.5 | 0.40 | 1 | -- | ||||||
| 78P01982 | 5-25 | B1 | S | 66.7 | 0.35 | 91 | 82 | ||||||
| 78P01983 | 43-74 | C | S | 63.0 | 8.0 | 0.35 | 87 | 75 | |||||
| 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 | % | |||||||||||
| 8C1a | 6A1c | 6E1b | 5C1 | 5C3 | 8D1 | 8A1a | 5D2 | ||||||||||||
| 78P01975 | 0-5 | A | S | 7.8 | 3.33 | 1 | 100* | 100 | 0.58 | 0.96 | -- | ||||||||
| 78P01976 | 5-25 | B1 | S | 8.1 | 1.16 | 5 | 100* | 100 | 0.47 | 0.65 | -- | ||||||||
| 78P01977 | 25-43 | B2 | S | 8.2 | 0.73 | 15 | 100* | 100 | 0.40 | 0.46 | -- | ||||||||
| 78P01978 | 43-74 | C | S | 7.9 | 0.48 | 18 | 100* | 100 | 0.40 | 2.31 | -- | ||||||||
| 78P01979 | 74-109 | Cr1 | S | 7.9 | 0.33 | 7 | 100 | 0.83 | 2.27 | -- | |||||||||
| 78P01980 | 109-140 | Cr2 | S | 7.7 | 0.27 | 10 | 100 | 0.57 | 2.30 | -- | |||||||||
| 78P01981 | 0-5 | A | S | 8.0 | 4.07 | 1 | 100* | 100 | 0.63 | 1.05 | -- | ||||||||
| 78P01982 | 5-25 | B1 | S | 8.1 | 1.71 | 5 | 100* | 100 | 0.52 | 0.88 | -- | ||||||||
| 78P01983 | 43-74 | C | S | 8.1 | 0.54 | 18 | 100* | 100 | 0.42 | 0.59 | -- | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.46 | (NA) | |
| Clay, carbonate free, Weighted Average | 59 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 75 | % wt | |
| Volume, >2mm, Weighted Average | 58 | % vol | |
| Clay, total, Weighted Average | 66 | % wt | |
| Weighted averages based on control section: 25-74 cm | |||