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由中国水利学会泥沙专业委员会和中国地理学会地貌专业委员会联合举办的河床演变学术讨论会于1981年11月16日至20日在湖北省宜昌市召开。来自全国有关高等院校、科研和工程机构的水利、地理工作者,计143个单位的184名代表参加了会议。在开幕式上,中国科学院学部委员钱宁教授致开幕词;中国科学院地理所左大康副所长、长江水利水电科学院赵文怀院长和泥沙专业委员会主任委员张瑞瑾教授讲了话。谢鉴衡
The Symposium on Riverbed Evolution jointly organized by Sediment Professional Committee of China Water Conservancy Society and Landform Professional Committee of China Geological Society was held in Yichang, Hubei Province from November 16 to November 20, 1981. Water conservancy and geo-staff from 143 colleges and institutes of higher learning, scientific research and engineering institutions nationwide attended the meeting. At the opening ceremony, Professor Qian Ning, member of Chinese Academy of Sciences, made an opening speech; Professor Zuowen Zhao, deputy director of the Institute of Geography, Chinese Academy of Sciences, Zhao Wenhuai, director of the Yangtze River Water Resources and Hydropower Research Institute, and director of the Sediment Professional Committee made speeches. Xie balance