Risk Assessment Using the Rangeland Hydrology and Erosion Model
The Rangeland Hydrology and Erosion Model (RHEM) is a new process-based model developed by the USDA-ARS. The model has been developed for assessing the runoff, soil erosion rate, and sediment delivery rate and volume on rangelands at the hillslope scale for a rainfall event. Evaluation of RHEM performance is a key element for its acceptance as a useful tool. Therefore, the objective of the research work is to evaluate the performance of RHEM and its new components especially when it is applied in disturbed rangelands.