Although STREAM was designed for temperate agricultural
areas, we managed to implement the model in the context of semiarid
mountains that were mainly occupied by rangelands. Three
major parameters driving runoff rate and sediment concentration,
namely soil type, soil protection by vegetation or stones and existence
of soil conservation practices, were identified and their
spatial variability within the monitored watershed was described.
A comparison between the observed and simulated results allowed
us to identify the potentialities and limitations of the model.