This paper presented the vertical mass flux profiles of different grain size groups in aeolian sand transport,which is the hot issue of non-uniform sand transport research but is rarely studied recently.

Study on mathematical modeling for non-uniform sediment transport in an irrigation district along the lower reach of the Yellow River;

Effect of grain shape on incipient motion of non-uniform sediment;

Study on laws of incipient motion for non-uniform sediment on sloping land;

The incipient motion formula of non cohesive non uniform sediment particles under a steady uniform stream flow on generalized sloping fluvial bed is established by the research.

Bottom flow structure is changed because of the existence of the non uniform sediment.

Obvious differences of transport mechanism exist between the uniform and non uniform sediment.

Incipient probability of cohesive nonuniform sediment;

Incipient motion of individual fractions of nonuniform sediment;

Research on incipient velocity of nonuniform sediment on slope of bend river bank