| *** Primary Characterization Data *** |
| Pedon ID: 81AK280008 | ( Wrangell-Petersburg Census Area, Alaska ) | Print Date: Feb 16 2026 3:09AM |
| Sampled as on May 30, 1981: | Plot No. 157 ; Thixotropic-skeletal Humic Cryorthods |
| Revised to correlated on Nov 1, 1991: | Unnamed ; Sandy, mixed Typic Humicryod |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP82AK190 TONGASS NATIONAL FOREST-STIKINE AREA | Natural Resources Conservation Service |
| - | Site ID | S1981AK280008 Lat: 56° 4' 20.01" north Long: 131° 58' 35.02" west MLRA: 168 | National Soil Survey Center | |
| - | Pedon No. | 82P0552 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Layer | Horizon | Orig Hzn | Depth (cm) | Field Label 1 | Field Label 2 | Field Label 3 | Field Texture | Lab Texture |
| 82P02802 | O | O1 | 3-0 | |||||
| 82P02803 | E | A2 | 0-2 | SL | COS | |||
| 82P02804 | B1 | B21 | 2-15 | L | LCOS | |||
| 82P02805 | B1 | B22 | 15-33 | L | LCOS | |||
| 82P02806 | B2 | B3 | 33-58 | L | LCOS | |||
| 82P02807 | C | C | 58-152 | L | LCOS | |||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 10.88 | (NA) | |
| Clay, carbonate free, Weighted Average | 2 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 72 | % wt | |
| Volume, >2mm, Weighted Average | 32 | % vol | |
| Clay, total, Weighted Average | 2 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||
| PSDA & Rock Fragments | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | |||
| (- - - - - Total - - - - - -) | (- - Clay - - -) | (- - - - Silt - - - - -) | (- - - - - - - - - - - - Sand - - - - - - - - - - - -) | ( Rock Fragments (mm) ) | |||||||||||||||||
| Lab | Clay | Silt | Sand | Fine | CO3 | Fine | Coarse | VF | F | M | C | VC | (- - - - - - - - Weight - - - - - - - -) | >2 mm | |||||||
| Text- | < | .002 | .05 | < | < | .002 | .02 | .05 | .10 | .25 | .5 | 1 | 2 | 5 | 20 | .1- | wt % | ||||
| Depth | ure | .002 | -.05 | -2 | .0002 | .002 | -.02 | -.05 | -.10 | -.25 | -.50 | -1 | -2 | -5 | -20 | -75 | 75 | whole | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -) | (- - - - - - - % of <75mm - - - - - -) | soil | |||||||||||||||
| 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3B1 | 3B1 | 3B1 | ||||||||
| 82P02802 | 3-0 | O | S | -- | -- | -- | |||||||||||||||
| 82P02803 | 0-2 | E | S | cos | 2.7 | 7.2 | 90.1 | 3.6 | 3.6 | 9.1 | 18.6 | 18.7 | 23.3 | 20.4 | -- | -- | -- | 81 | -- | ||
| 82P02804 | 2-15 | B1 | S | lcos | 2.4 | 23.0 | 74.6 | 12.2 | 10.8 | 17.0 | 17.7 | 12.5 | 13.0 | 14.4 | -- | -- | -- | 58 | -- | ||
| 82P02805 | 15-33 | B1 | S | lcos | 1.4 | 15.2 | 83.4 | 9.7 | 5.5 | 12.0 | 18.8 | 18.2 | 17.9 | 16.5 | -- | -- | -- | 71 | 24 | ||
| 82P02806 | 33-58 | B2 | S | lcos | 1.9 | 15.2 | 82.9 | 7.9 | 7.3 | 12.1 | 19.1 | 18.8 | 17.6 | 15.3 | -- | -- | -- | 71 | 38 | ||
| 82P02807 | 58-152 | C | S | lcos | 2.3 | 15.6 | 82.1 | 8.4 | 7.2 | 10.2 | 18.1 | 19.0 | 19.8 | 15.0 | -- | -- | -- | 72 | 55 | ||
| *** Primary Characterization Data *** |
| Pedon ID: 81AK280008 | ( Wrangell-Petersburg Census Area, Alaska ) | Print Date: Feb 16 2026 3:09AM |
| Sampled As | : | Plot No. 157 | Thixotropic-skeletal Humic Cryorthods | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 82P0552 | |||
| Bulk Density & Moisture | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | |||
| (Bulk Density) | Cole | (- - - - - - - - - - - Water Content - - - - - - - - - - -) | ( Air Dry-Oven Dry ) | WRD | Aggst | ||||||||||||
| 33 | Oven | Whole | 6 | 10 | 33 | 1500 | 1500 kPa | (- - - - Ratio - - - -) | Whole | Stabl | (- - Ratio/Clay - -) | ||||||
| Depth | kPa | Dry | Soil | kPa | kPa | kPa | kPa | Moist | Corrected | Soil | 2-0.5mm | CEC7 | 1500 kPa | ||||
| Layer | (cm) | Horz | Prep | (- - - g cm-3 - - -) | (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) | cm3 cm-3 | % | ||||||||||
| 3C2a1a | 3D1 | 8D1 | 8D1 | ||||||||||||||
| 82P02803 | 0-2 | E | S | 13.3 | 1.020 | 6.78 | 4.93 | ||||||||||
| 82P02804 | 2-15 | B1 | S | 19.1 | 1.060 | 13.92 | 7.96 | ||||||||||
| 82P02805 | 15-33 | B1 | S | 14.1 | 1.037 | 17.14 | 10.07 | ||||||||||
| 82P02806 | 33-58 | B2 | S | 12.2 | 1.032 | 10.63 | 6.42 | ||||||||||
| 82P02807 | 58-152 | C | S | 13.1 | 1.030 | 9.83 | 5.70 | ||||||||||
| Carbon & Extractions | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | |||
| (- - - - - Total - - - - -) | Est | OC | C/N | (- - - Dith-Cit Ext - - -) | (- - - - - - Ammonium Oxalate Extraction - - - - - -) | (- - - Na Pyro-Phosphate - - -) | ||||||||||||||||
| Depth | C | N | S | OC | (WB) | Ratio | Fe | Al | Mn | Al+½Fe | ODOE | Fe | Al | Si | Mn | C | Fe | Al | Mn | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - % of <2 mm - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - - - % of < 2mm - - - - -) | |||||||||||||||
| 6B3a | 6A1c | 6C2b | 6G7a | 6D2a | 6C8a | 6G10 | ||||||||||||||||
| 82P02803 | 0-2 | E | S | 0.300 | 5.04 | 17 | 1.0 | 0.5 | tr | 0.7 | 0.4 | |||||||||||
| 82P02804 | 2-15 | B1 | S | 0.320 | 7.02 | 22 | 2.3 | 2.1 | tr | 1.6 | 1.8 | |||||||||||
| 82P02805 | 15-33 | B1 | S | 0.266 | 6.36 | 24 | 1.8 | 1.5 | tr | 1.5 | 1.4 | |||||||||||
| 82P02806 | 33-58 | B2 | S | 0.238 | 5.48 | 23 | 1.6 | 1.3 | -- | 1.0 | 0.9 | |||||||||||
| 82P02807 | 58-152 | C | S | 0.246 | 5.79 | 24 | 1.1 | 1.3 | -- | 0.8 | 1.1 | |||||||||||
| CEC & Bases | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | |||
| (- - - - - - NH4OAC Extractable Bases - - - - -) | CEC8 | CEC7 | ECEC | (- - - - Base - - - -) | |||||||||||||
| Sum | Acid- | Extr | KCl | Sum | NH4 | Bases | Al | (- Saturation -) | |||||||||
| Depth | Ca | Mg | Na | K | Bases | ity | Al | Mn | Cats | OAC | +Al | Sat | Sum | NH4OAC | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - cmol(+) kg-1 - - -) | (- - - - - - - - % - - - - - - - -) | ||||||||||
| 6N2e | 6O2d | 6P2b | 6Q2b | 6H5a | 6G9a | 5A3a | 5A8b | 5A3b | 5G1 | 5C3 | 5C1 | ||||||
| 82P02803 | 0-2 | E | S | 1.6 | 0.4 | 0.2 | 0.1 | 2.3 | 28.9 | 2.3 | 31.2 | 18.3 | 4.6 | 50 | 7 | 13 | |
| 82P02804 | 2-15 | B1 | S | 1.8 | 0.2 | 0.2 | 0.1 | 2.3 | 52.8 | 1.8 | 55.1 | 33.4 | 4.1 | 44 | 4 | 7 | |
| 82P02805 | 15-33 | B1 | S | 1.0 | 0.1 | 0.1 | tr | 1.2 | 41.1 | 1.5 | 42.3 | 24.0 | 2.7 | 56 | 3 | 5 | |
| 82P02806 | 33-58 | B2 | S | 0.7 | 0.1 | 0.1 | tr | 0.9 | 31.1 | 1.7 | 32.0 | 20.2 | 2.6 | 65 | 3 | 4 | |
| 82P02807 | 58-152 | C | S | 0.5 | tr | 0.1 | tr | 0.6 | 38.0 | 2.2 | 38.6 | 22.6 | 2.8 | 79 | 2 | 3 | |
| *** Primary Characterization Data *** |
| Pedon ID: 81AK280008 | ( Wrangell-Petersburg Census Area, Alaska ) | Print Date: Feb 16 2026 3:09AM |
| Sampled As | : | Plot No. 157 | Thixotropic-skeletal Humic Cryorthods | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 82P0552 | |||
| Salt | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | -20- | |||
| (- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -) | 1:2 | ||||||||||||||||||||||
| Total | Elec | Elec | Exch | ||||||||||||||||||||
| Depth | Ca | Mg | Na | K | CO3 | HCO3 | F | Cl | PO4 | Br | OAC | SO4 | NO2 | NO3 | H2O | Salts | Cond | Cond | Na | SAR | |||
| Layer | (cm) | Horz | Prep | (- - - - - mmol(+) L-1 - - - - -) | (- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -) | (- - - - % - - - -) | (- - dS m-1 - -) | % | |||||||||||||||
| 82P02803 | 0-2 | E | S | 1 | |||||||||||||||||||
| 82P02804 | 2-15 | B1 | S | 1 | |||||||||||||||||||
| 82P02805 | 15-33 | B1 | S | tr | |||||||||||||||||||
| 82P02806 | 33-58 | B2 | S | tr | |||||||||||||||||||
| 82P02807 | 58-152 | C | S | tr | |||||||||||||||||||
| pH & Carbonates | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | |||
| (- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -) | (- - Carbonate - -) | (- - Gypsum - - -) | ||||||||||||
| CaCl2 | As CaCO3 | As CaSO4*2H2O | Resist | |||||||||||
| Depth | 0.01M | H2O | Sat | <2mm | <20mm | <2mm | <20mm | ohms | ||||||
| Layer | (cm) | Horz | Prep | KCl | 1:2 | 1:1 | Paste | Oxid | NaF | (- - - - - - - - - - - - % - - - - - - - - - - -) | cm-1 | |||
| 4C1a2a | 4C1a2a | 4C1a1a1 | ||||||||||||
| 82P02803 | 0-2 | E | S | 4.2 | 4.3 | 9.0 | ||||||||
| 82P02804 | 2-15 | B1 | S | 4.6 | 5.1 | 11.5 | ||||||||
| 82P02805 | 15-33 | B1 | S | 4.6 | 5.0 | 11.4 | ||||||||
| 82P02806 | 33-58 | B2 | S | 4.6 | 4.9 | 11.3 | ||||||||
| 82P02807 | 58-152 | C | S | 4.6 | 4.8 | 11.4 | ||||||||
| *** Primary Characterization Data *** |
| Pedon ID: 81AK280008 | ( Wrangell-Petersburg Census Area, Alaska ) | Print Date: Feb 16 2026 3:09AM |
| Sampled As | : | Plot No. 157 | Thixotropic-skeletal Humic Cryorthods | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 82P0552 | |||
| Sand - Silt Mineralogy (2.0-0.002 mm) | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | |||
| X-Ray | Thermal | Optical | EGME | Inter | |||||||||||||||||
| Tot Re | Grain Count | Retn | preta | ||||||||||||||||||
| Depth | Fract | 7B1a2 | tion | ||||||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - peak size - - - - - - - - - ) | (- - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 82P02803 | 0.0-2.0 | E | vfs | GS tr | GA tr | ||||||||||||||||
| 82P02804 | 2.0-15.0 | B1 | vfs | GA 1 | GS tr | ||||||||||||||||
| 82P02805 | 15.0-33.0 | B1 | vfs | GS 2 | GA tr | ||||||||||||||||
| 82P02806 | 33.0-58.0 | B2 | vfs | GA 1 | GS tr | ||||||||||||||||
| 82P02807 | 58.0-152.0 | C | vfs | GS 3 | GA 1 | ||||||||||||||||
| FRACTION INTERPRETATION: | ||||
| vfs - Very Fine Sand 0.05-0.1 mm | ||||
| MINERAL INTERPRETATION: | ||||
| GA Glass Aggregates | GS Glass | |||