由于我国水利建设的需要,并为全国江河防汛安全服务、经泥沙专业委员会研究决定于一九八八年十月中、下旬在北京召开全国河床演变学术讨论会.请会员同志围绕会议重点～河床演变及河道整治问题积极撰写论文,并请将拟提交会 Due to the needs of China’s water conservancy construction and the flood control and security services for the whole country, the sediment professional committee decided to hold a national river bed evolution seminar in Beijing in the middle and late October 1988. Let the members focus on the focus of the meeting ~ River bed evolution and river regulation problems actively writing papers, and will be submitted to be submitted