河流沉积学研究进展及发展趋势

河流沉积学的研究不但具有重要的理论意义，而且对生产实践和洪灾防治具有重要的指导作用．为了使研究能够全面把握河流沉积学的研究现状及发展趋势，从河流分类、河流沉积作用的模拟实验、河流沉积相模式、河流沉积物形成的影响因素和古河道重建等方面，对河流沉积学的进展作了比较全面的回顾．在此基础上认为，河流层序地层学具有广阔的发展空间；不同河型沉积物的识别还有待从方法上进行加强；分汉河和网状河的多河道形成机理的理论探讨和水槽模拟实验有待深入开展；河型及其沉积物的时空转化模式及影响因素需要进行系统的综合研究；等等．期望将来的研究能够在上述薄弱环节上有所突破，从而使河流沉积学的研究迈上一个新的台阶．

The Evolution and Direction of Research in Fluvial Sedimentology

The research in fluvial sedimentology is significant not only for theory but also for practice of mine production and flood controlling. For study workers can hold the evolution and direction of research in fluvial sedimentology, some of its research aspects are reviewed and discussed in this work. These aspects include fluvial river classification, flume simulation experiment of sedimentation, depositional model, influence factors of deposit formation and ancient channel reconstruction. Some directions based on the above are brought forward and they are: (1) Fluvial sequence stratigraphy has a wide development space. (2) The distinguish methods of different river styles need to perfect. (3) The multiple channel formation mechanism of anastomosing and anabranched rivers must be researched deep in theory and flume simulation experiment. (4) The spatial and temporal transforms of different channel patterns need to study systematically and synthetically. It is look forward to develop in the above aspects so that fluvial sedimentology can be development.