Covers erosion process, types of erosion, estimation of erosion using universal and modified universal soil loss equations, sediemnt yield and its determination, temporal distribution of sedienmnt yiled, sediemnt loads in channels, sediemnt transport, sediemnt properties, fall velocity, sediemnt transport functions, sediment routing, reservoir sedimentation, and erosion and sedimentation modeling in HEC-HMS.

Sediment transport in rivers provides a dynamic linkage between flow and channel form. Topics examined in this chapter include differences among wash load, suspended bed-material load, and bedload; entrainment of particles on the bed into motion and into suspension; flow competence; the influence of particle mixtures on entrainment relations; the major factors influencing concentration profiles of suspended sediment in river flows; mechanisms of bedload transport and approaches to the development of bedload and bed-material transport equations; and factors that complicate understanding and prediction of bed-material transport in rivers, including armoring, bedforms, modality, particle–particle interactions, spatial-temporal variability, turbulence, and the validity of transport threshold relations. The use of particle-tracing methods in combination with information on channel change to estimate bed-material transport is also presented.