(2) The key parameters or coefficients influencing sediment budget method are the separated sand size of wash load and bed material load and the suspended sediment grading curves,while those affecting morphological change method are the bankfull stage and the sediment dry density.

Started from the concept that bed material load can exchange with bed material while wash load cannot exchange with bed material, the inherent mechanism of delimiting between bed material load and wash load is analyzed by using of sediment incipient motion condition and sediment ceasing motion condition.

Theoretical analysis shows that the fine material transported as wash load is not only determined by flow intensity and particle size, but also strongly influenced by its concentration.

Numerical analysis of pore water pressure response in sandy seabed under nonlinear wave in shallow water;

On wave-induced dynamic response on sandy seabed around caisson breakwater;

In this paper the scouring patterns of sand bed in front of vertical breakwaters under the action of irregular broken waves were investigated.

Started from the concept that bed material load can exchange with bed material while wash load cannot exchange with bed material, the inherent mechanism of delimiting between bed material load and wash load is analyzed by using of sediment incipient motion condition and sediment ceasing motion condition.