The established model and the calculation method is used to Nantong section of Yangtze River and the result is satisfactory.

Wind-observation stations were established both on the bank and the river surface in Nantong reach of the Changjiang River,and an 80m height wind observation tower was established on the bank at the same place to get wind gradient data from March 1,2000 to February 28,2003.

New technique for bank protection on Nanjing reach of Yangtze River;

Based on abundant in-situ data, this paper analyzes the recent fluvial process of Nantong reach and the river-bed scouring and siltation at Xinda dock waters by applying the basic principle of fluvial process, and the cause of river-bed scouring and siltation at Xinda dock waters is concluded from construction impact, runoff i.

Analysis on the present situation of water environment in the Changjiang estuary;