泥沙研究对比性分析与展望

着眼于泥沙研究的历史和前沿领域，从传统泥沙与未来泥沙、灾害泥沙与资源泥沙、实体模型与数学模型等3个方面作了对比性分析和展望，指出：①由于泥沙现象本身十分复杂，量测中存在不少问题，因此一些关键问题尚未突破，对基本概念甚至同一问题争议较多；②解决泥沙灾害及其灾害链是泥沙研究工作的归属，要变被动为主动，引泥沙灾害向泥沙资源的方向发展；③应改进实体模型的观察手段，提倡正确的研究方法，数学模型应向综合性、高水平模型发展；④研究泥沙问题必须注重理论与实际相结合，兼顾随机性与偶然性；⑤理论分析、实验观测和数值计算共同促进了对泥沙的认识，应努力提高其竞争力、创造力和适应性。

Contrastivity Analysis and Prospection of Sediment Research

The paper points out that a) some key issues have not been broken through and a lot of disputes existed on the basic concept even on a same issue due to extremely complicated sediment and existing problems in measuring; b) solving the issues of sediment disaster and its disaster chain are the key of sediment research, which should regain the initiative and guide the development of sediment disaster into sediment resources; c) to improve physical model observation methods, promote correct study methods and mathematical model should be developed in the orientation of an integrated and high level model; d) sediment research should lay stress on combining theory with practice and giving the consideration to randomicity and contingency and; e) theoretical analysis, tests and observation and numerical calculation have jointly promoted the understanding on sediment, therefore, it should try to increase its competitive, creative ability and adaptability viewing from the history of sediment research and frontier domain, contrastivity analysis and prospection of 3 aspects of conventional sediment and future sediment, disaster sediment and resources sediment and physical model and mathematical model.