Dynamic of Sediment Transport Capacity by Overland Flow: A Review

This paper systematically reviews the relationship between sediment transport capacity and factors such as flow velocity, slope gradient, hydraulic parameters, soil properties, and root parameters in overland flow. The aim of this paper is to investigate the relationship between the sediment transport capacity on flow velocity, slope gradient, hydraulic parameters, soil properties, and root parameters on sediment transport capacity by overland flow and to evaluate the research findings for improving the accuracy of sediment transport predictions. A total of 36 journal articles from 2019 to 2024 were eligible through conducted Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) method protocol. The review identifies that each factor significantly influences sediment transport capacity. Increased f low velocities and steeper slopes generally enhance sediment transport by providing more energy and higher runoff velocity. Hydraulic parameters, including flow depth and discharge rate, are critical, with greater depths and faster f lows increasing transport potential. Soil properties, like texture and cohesion, affect sediment detachment and transport, with sandy