一、主要研究内容该项目主要以黄河和长江等流域为例,研究大江大河泥沙灾害的形成机理以及相应的防治措施。整个项目分为6个课题。1.流域系统中泥沙产生与致灾机理以黄河流域和金沙江下游为研究区域,探讨了泥沙侵蚀、输移及泥沙沉积类型与地貌类型及其形态过程的关系,并据此进 I. Main research contents The project mainly takes the Yellow River and the Yangtze River as an example to study the formation mechanism of sediment and disasters in the rivers and the corresponding prevention measures. The whole project is divided into six topics. 1. Mechanism of Sediment Production and Disaster in Watershed Systems Taking the lower reaches of the Yellow River Basin and the Jinsha River as study areas, the relationship between sediment erosion, transport, sediment types and topography types and their morphological processes is discussed