The influence of surface properties on flow and erosion processes on debris covered slopes in an arid area

摘要: Summary A study aiming to obtain quantitative data on the processes of slope runoff and erosion under arid conditions relate them rain surface properties, was conducted near Elat, in southern Israel. Slope-channel relations, with regard sediment transport, were also analysed. Data obtained by means three overland flow collectors, two recorders one hydrometric station. The research over season, during which a single channel five events occurred. results lead following main conclusions: 1) For small drainage basin, threshold values for slopes are 3 mm 5 per day, respectively; 2) No clear relation exists between angle an inverse erosion.