近年来闽江下游河床演变剧烈,给下游的公共安全带来巨大隐患。该文通过近几年河道地形图及多年相关水文资料数据对比研究闽江下游河床演变情况,分析河道演变主要影响因素及其产生的不利影响,并就河道演变趋势及应对措施给出几点建议,供参考。 In recent years, the river bed in the lower reaches of the Min River has evolved drastically, which has brought huge hidden danger to the downstream public safety. In this paper, the evolution of the riverbed in the lower reaches of the Minjiang River Basin is studied by comparing the topographic maps of rivers and hydrological data for many years with the river channel topography in recent years. The main influencing factors and the adverse effects of the river course evolution are analyzed. Some suggestions are given for the evolution trend and countermeasures ,for reference.