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Figure 1

Graph showing sediment source contributions to the River Aire in Leeds. From largest to smallest, contributions are from grasslands (45%), urban sediment (42%), millstone grit (18%), eroding river banks (15%) and coal measures areas (around 10%).Cycle of fluvial geomorphology in both natural and urban settings. Cycle runs from surface to conditions to processes to adaptation, then back into surface.New York, a city shaped by water.