| *** Taxonomy Characterization Data *** |
| Pedon ID: 79TX479004 | ( Webb, Texas ) | Print Date: Jan 30 2025 8:00PM |
| Sampled as on Dec 1, 1979: | McAllen ; Fine-loamy, mixed, hyperthermic Aridic Ustochrept |
| Revised to correlated: | Moglia ; Fine-loamy, mixed, superactive, hyperthermic Ustollic Calciorthids |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP80TX124 WEBB COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1979TX479004 Lat: 27° 37' 15.00" north Long: 99° 12' 20.01" west MLRA: 83B | National Soil Survey Center | |
| - | Pedon No. | 80P0179 | 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 | 3A1a1a | 8D1 | 4A1d | 7B1a2 | ||||||||
| 80P00897 | 0-18 | A | S | 32.5 | 7.3 | 1.2 | 0.45 | 26 | 1.77 | -- | 1 | ||
| 80P00898 | 18-53 | B | S | 40.8 | 13.6 | 7.7 | 0.41 | 24 | 1.42 | 0.072 | 2 | 67 | |
| 80P00899 | 53-76 | Bk | S | 38.8 | 8.5 | 7.7 | 0.46 | 17 | 1 | ||||
| 80P00900 | 76-107 | 2B | S | 19.1 | 1.3 | 2.4 | 0.83 | 23 | 1 | ||||
| 80P00902 | 137-152 | 3Bky | S | 25 | |||||||||
| 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 | ||||||||||||
| 80P00897 | 0-18 | A | S | 8.0 | 1.29 | 6 | 100* | 100 | 0.77 | 0.81 | 1 | ||||||||
| 80P00898 | 18-53 | B | S | 7.8 | 0.72 | 15 | 100* | 100 | 0.64 | 4.51 | 10 | ||||||||
| 80P00899 | 53-76 | Bk | S | 7.7 | 0.50 | 16 | 100* | 100 | 0.64 | 25.80 | 27 | ||||||||
| 80P00900 | 76-107 | 2B | S | 7.7 | 0.28 | 15 | 100* | 100 | 1.34 | 22.00 | 35 | ||||||||
| 80P00901 | 107-137 | 2Bky | S | 7.8 | 0.09 | 8 | 15.31 | ||||||||||||
| 80P00902 | 137-152 | 3Bky | S | 7.8 | 0.09 | 7 | 15.55 | ||||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 1.03 | (NA) | |
| Clay, carbonate free, Weighted Average | 27 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 22 | % wt | |
| Volume, >2mm, Weighted Average | 1 | % vol | |
| Clay, total, Weighted Average | 33 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||