中文摘要：

蜿蜒河流在河床演变的同时,河道平面形态随时间变化而不断地摆动、迂回和迁移,形成蜿蜒河流演变动力过程;蜿蜒河流演变动力过程是一个涵盖水动力学、泥沙运动力学、沉积学、地貌学等多学科交叉的跨学科课题,其研究具有重要的科学意义和应用价值。通过将其中涉及的科学问题分解、分类和汇总,并进行时间和空间尺度分析,形成系统的理论体系框架。另外从弯道水动力特性、河流纵向和横向演变以及河流沉积等方面,论述了蜿蜒河流演变主要课题的研究进展状况。

英文摘要：

Along with bed deformation in a meandering river,its planar shape shifts,zigzags and migrates with time,forming the meandering river dynamics.It is an interdisciplinary subject involving hydrodynamics,sediment transport mechanics,sedimentology and geomorphology.It is also a subject of great scientific interest and engineering applications.Scientific subjects involved are decomposed,classified,summarized,and analyzed at temporal and spatial scale,based on which,a systematic framework for theoretical research is presented.Advances of researches on river meandering are also discussed for major aspects,such as hydrodynamic feature of river bends,river bed evolvement and planar shape development,as well as fluvial deposition.