| *** Taxonomy Characterization Data *** |
| Pedon ID: 70TX057023 | ( Calhoun, Texas ) | Print Date: Nov 13 2025 12:46PM |
| Sampled as on Dec 30, 1969: | Matagorda |
| Revised to correlated: | Matagorda ; Fine, mixed, active, hyperthermic Typic Natraqualfs |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL40001 SSIR SAMPLES | Soil Conservation Service |
| - | Site ID | S1970TX057023 Lat: 28° 31' 36.00" north Long: 96° 32' 58.01" west MLRA: 150B | Lincoln Soil Survey Laboratory | |
| - | Pedon No. | 40A4432 | Soil Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska | ||
| 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 | 3A1a1a | |||||||||||
| 40A33900 | 0-25 | A | S | 3.8 | 1.3 | 0.50 | 32 | -- | |||||
| 40A33901 | 25-38 | Bt11 | S | 40.4 | 33.6 | 0.49 | 23 | -- | |||||
| 40A33902 | 38-81 | Bt12 | S | 33.3 | 27.1 | 0.52 | 27 | -- | |||||
| 40A33903 | 81-114 | Bt13 | S | 23.5 | 19.4 | 0.52 | 33 | -- | |||||
| 40A33904 | 114-147 | Bt2 | S | 30.2 | 21.0 | 0.47 | 30 | -- | |||||
| 40A33905 | 147-188 | C | S | 23.5 | 13.4 | -- | 0.46 | 36 | 6 | ||||
| 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 | 6A1a | 6E1b | 8A1a | 5D2 | |||||||||||||||
| 40A33900 | 0-25 | A | S | 5.5 | 0.34 | -- | 70 | 51 | 0.71 | 0.21 | 7 | ||||||||
| 40A33901 | 25-38 | Bt11 | S | 5.5 | 0.76 | -- | 85 | 75 | 0.59 | 2.15 | 17 | ||||||||
| 40A33902 | 38-81 | Bt12 | S | 6.4 | 0.36 | -- | 100* | 87 | 0.61 | 4.49 | 25 | ||||||||
| 40A33903 | 81-114 | Bt13 | S | 7.4 | 0.04 | -- | 100* | 100 | 0.67 | 5.74 | 49 | ||||||||
| 40A33904 | 114-147 | Bt2 | S | 7.8 | 0.03 | -- | 100* | 100 | 0.61 | 8.87 | 48 | ||||||||
| 40A33905 | 147-188 | C | S | 8.3 | 0.01 | 28 | 100* | 100 | 0.56 | 10.70 | 64 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.6 | (NA) | |
| Clay, carbonate free, Weighted Average | 35 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 26 | % wt | |
| Volume, >2mm, Weighted Average | 0 | % vol | |
| Clay, total, Weighted Average | 35 | % wt | |
| Weighted averages based on control section: 25-75 cm | |||