[Significance]As an important branch in earth system science,fluvial geomorphology is the study of fluvial erosion-transport-accumulation processes(source-to-sink system),temporal-spatial change in fluvial land-scapes,and impact of tectonic,climate and human activities on river evolution.Rivers connect the erosional do-main of orogens and the depositional domain of ocean basins,which plays a crucial role in the earth surface system.[Progress]On the basis of a sysnthesis of main research progress in fluvial geomorphology in recent decades,this article discusses the new direction of fluvial geomorphology.With the application of high-resolution topographic da-ta,the scope of fluvial geomorphology has expanded and deepened over the past decades,including new methods used to calculate surface erosion rates,innovation in sediment dating techniques,and the development of numerical simulations.Studies on fluvial reorganization and influences of tectonics,climate change,and human activity on river evolution have been greatly advanced.[Conclusion and Prospects]In the new era,fluvial geomorphology will focus on the frontiers in earth surface systems and national needs,strengthen the understanding of the mechan-ics of river formation and reorganization,and address major global and regional social-ecological issues.Further-more,it needs to carry out the discipline overlap,serve the national strategy,and enhance its role in the research of the earth surface system.
关键词
河流地貌学/侵蚀和搬运/数值模拟/人类活动/表层地球科学
Key words
fluvial geomorphology/erosion and deposition/numerical simulation/human activities/surface-earth system science
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