The time-based perspective of river-floodplain processes plays a key role in understanding its evolution until its present situation and in guiding process-based river restoration. However, despite the wide range of approaches to eco-hydromorphological characterization, the analysis of fluvial dynamics and their drivers under a temporal perspective requires more investigation. For the present study, a historical analysis of river-floodplain dynamics has been undertaken in a study section of the Duero River upstream of Zamora (Spain), within the framework of the DRAINAGE project for the integral management of flood risk. Aerial imagery for the period 1945–2017 was used to create habitat maps that were subsequently intersected to identify trajectories of habitat change (anthropization, changeless, progression, and regression). In addition, a Natural Trajectory Index (NTI) and an Anthropization Ratio (AR) were proposed as a way to assess the balance of natural trajectories (progression vs. regression) and the weight of anthropization versus the sum of natural trajectories, respectively. Results show a system with a high degree of stability and anthropization, and a current imbalance of natural trajectories with a predominance of progression in the ecological succession. Rejuvenation processes have to be reactivated through nature-based solutions, allowing for more sustainable water management practices. This perspective aims at promoting a more resilient system. The diachronic analysis presented is widely exportable to other river-floodplain systems as a basis for process-based restoration practice.

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评估多时相河流泛滥平原动态作为大河中面向过程的恢复的基线：西班牙杜罗河

河流漫滩过程的基于时间的视角在理解其演变直至其现状和指导基于过程的河流恢复方面起着关键作用。然而，尽管生态水文形态特征的方法范围很广，但从时间角度分析河流动力学及其驱动因素需要更多的调查。对于本研究，在洪水风险综合管理的 DRAINAGE 项目框架内，在萨莫拉（西班牙）上游杜埃罗河的研究部分进行了河流泛滥平原动态的历史分析。1945 年至 2017 年期间的航拍图像用于创建栖息地地图，随后将这些地图相交以确定栖息地变化的轨迹（人类化、不变、进展和回归）。此外，提出了自然轨迹指数 (NTI) 和人类化比率 (AR)，分别作为评估自然轨迹（进展与回归）和人类化权重与自然轨迹总和的平衡的一种方式。结果表明系统具有高度的稳定性和人类化程度，当前自然轨迹不平衡，在生态演替中占主导地位。复兴过程必须通过基于自然的解决方案重新启动，从而实现更可持续的水资源管理实践。这种观点旨在促进更具弹性的系统。呈现的历时分析可广泛应用于其他河流漫滩系统，作为基于过程的恢复实践的基础。