Ephemeral gully erosion is an important erosion type in Loess Plateau.Study of the hydrodynamic parameters of ephemeral gully flow is the base of establishing process-based or conceptual water erosion models.Hydrodynamic parameters were studied by scouring experiment on the slope of Yanergou watershed.It was concluded that ephemeral gully flow is turbulent flow,mostly is supercritical flow,and nearby the slope of 18° the power distribution of ephemeral gully flow was balanced between erosion and sediment tr...
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