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| Електротомография на съпротивлението× | Универсално уравнение за загуба на почва× | |
|---|---|---|
| Област | Геофизика | Геофизика |
| Семейство | Process / pipeline | Process / pipeline |
| Година на възникване≠ | 1996 | 1978 |
| Създател≠ | Loke and Barker | Waldo Wischmeier and Dwight Smith |
| Тип≠ | Active source resistivity mapping and subsurface imaging | Empirical soil erosion prediction model |
| Основополагащ източник≠ | Loke, M. H., & Barker, R. D. (1996). Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method. Geophysical Prospecting, 44(1), 131-152. DOI ↗ | Wischmeier, W. H., & Smith, D. D. (1978). Predicting rainfall erosion losses: A guide to conservation planning. USDA Agricultural Handbook 537. link ↗ |
| Други названия≠ | ERT | USLE, Revised USLE |
| Свързани | 3 | 3 |
| Резюме≠ | Electrical Resistivity Tomography (ERT) is an active-source geophysical method that maps the spatial distribution of electrical resistivity in the subsurface by injecting current between two electrodes and measuring potential differences across an array of receiver electrodes. Advanced as a practical technique by Loke and Barker in 1996, ERT has become standard for hydrogeological, environmental, and structural characterization due to its sensitivity to fluid saturation and salt content. | The Universal Soil Loss Equation (USLE) is an empirical model that estimates annual soil loss due to sheet and rill erosion on hillslopes caused by rainfall and runoff. Developed by Wischmeier and Smith in 1978 from decades of erosion plot experiments, USLE has become a standard tool for erosion risk assessment, conservation planning, and best management practice design. The Revised USLE (RUSLE) updated the original model with improved factor algorithms. |
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