Comprehensive Research and Outlook of Loose Solid Materials on the Gully System under Hydrodynamic Conditions

The paper reviewed the research and progress of solid materials on the gully system in the world and pointed out the shortage of it. On the condition of hydrodynamics, many papers available concentrated on the relationship between rainfall parameters and debris flow occurrence, rainfall infiltration and surface runoff; while on the solid materials on the gully or slope surface, a lot of researches focused on the flume experiments to analyses the initial condition and debris flow process under hydrodynamic effect together with artificial rainfall. Base on the reviews previous, paper give some prospects of research under hydrodynamic conditions in the futures.