【摘要】 弱混合陆相河口易受流域来水来沙、外海动力及人类活动的多重影响，其水文连通性呈复杂的动态变化特征，而该类河口水文连通性研究尚缺乏系统总结。为此，以我国典型弱混合陆相河口三角洲——黄河三角洲为例，基于结构连通性和功能连通性分类，分析了黄河三角洲滩涂湿地水文连通性时空分布特征、演变趋势、影响因素等，重点探讨了水文连通性与水沙变化的互馈关系。指出了未来的研究方向：整合河流、潮沟及地表地下水系，构建覆盖滩涂湿地全域的多尺度融合水文连通性框架；强化实地观测与数学模型的协同分析，系统解析弱混合陆相河口三角洲水文连通性与水沙情势的互馈机制；探索基于自然-社会的水文连通性提升路径，构建适配水文连通性提升与湿地生态功能修复的协同优化方案，为基于自然-社会的河口综合治理提供实践范式。更多还原

【Abstract】 Weakly mixed land-dominated estuaries are susceptible to the combined influences of fluvial water-sediment fluxes, marine dynamics, and anthropogenic activities, resulting in complex dynamic changes in hydrological connectivity. However, a systematic synthesis of hydrological connectivity in such estuaries is still lacking. Therefore, taking the Yellow River Delta, a representative weakly mixed land-dominated estuary in China, as an example, based on the classification of structural connectivity and functional connectivity, the spatiotemporal patterns, evolutionary trends, and driving factors of hydrological connectivity in tidal flat wetlands were analyzed, and the bidirectional feedback mechanisms between the hydrological connectivity and water-sediment dynamics were emphatically explored. It is pointed out that future research should focus on three directions, including integrating rivers, tidal creeks, and surface-groundwater systems to establish a multi-scale hydrological connectivity framework for entire tidal flat wetlands, enhancing synergistic analysis of field monitoring and numerical models to systematically analyze the feedback mechanisms between hydrological connectivity and water-sediment dynamics in weakly mixed estuaries, exploring nature-based and society-based solutions to improve hydrological connectivity, and establishing synergistic optimization strategies that concurrently enhance hydrological connectivity and restore wetland ecological function, thereby providing practical paradigms for integrated estuary management.更多还原