RECENT EVOLUTION AND SEDIMENT TRANSPORTING PATTERNS OF THE DENGZHOU SHOAL

Based on water depth data for two periods and 86 surficial sediment samples, the surficial sediment transporting patterns and the recent evolution of the Dengzhou Shoal were studied in this paper with special attention to the scale, morphology and scouring and silting systems. Our results show that the Dengzhou shoal has suffered from slowly recovery during 1990—2003 to retrogradation during 2004—2010 and the area bounded by 10m isobath has decreased by 5.9km² as the result of marine sand mining and insufficient sediment supply. And in response, the surficial sediment transport is directly towards the Dengzhou shoal as it appears to be the sediment sink.