Sediment supply refers to the quantity and type of sediment being transported and deposited by various geological processes such as erosion, weathering, and riverine transport. It plays a crucial role in shaping the landscape, affecting river morphology, sedimentation rates, and overall ecosystem health. Understanding sediment supply is important for studying geomorphological processes, land use planning, and the impact of human activities on natural systems. Researchers in this area may investigate sediment dynamics, sediment transport, erosion rates, and sediment sources to better understand how sediment supply influences the earth's surface and environments.