Research Progress on Ephemeral Gully Erosion Process and Its Prediction Model

Ephemeral gully is one of the important soil erosion patterns at hilly-gully region of the Loess Plateau.Its initiation and development is closely related to runoff scouring and human farming.The authors outlined ephemeral gully process,hydraulic characteristics of ephemeral gully flow,affecting factors and prediction models of ephemeral gully erosion.Strengthening research fields of ephemeral gully erosion are proposed,including critically dynamic parameters,qualifying ephemeral gully erosion process,detachment equation by shallow gully flow,transport capacity of shallow gully flow,soil loss predicting model related shallow gully and new methods for monitoring shallow gully process.