Runoff and Erosion Modeling by AGNPS in an Experimental Mediterranean Watershed

摘要: Runoff and erosion in upland watersheds can have significant negative environmental impacts. The choice design of appropriate control measures be aided by reliable predictions watershed hydrologic response under different land use scenarios. In recent decades several computer models been developed to simulate rainfall runoff effects at the watershed scale. Although many experiments conducted evaluate the available watershed models, more work is needed assess improve model reliability different environmental situations. To this end, a small mountainous mainly pasture, covering about 130 ha Eastern Sicily, was equipped some years ago order further extend model testing semi-arid Mediterranean conditions. A 6-year hydrological database is available soil-vegetation distributed parameters stored into GIS. present paper AGNPS (Young et al., 1989) implemented applied 20 events (10 which including suspended sediment concentration measurements), occurring from 1997 2001, and model performance analysed also after first calibration test.