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River restoration with complex hydrological and ecological interactions: the RECORD-Project

机译：具有复杂的水文和生态相互作用的河流修复：RECORD项目

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River restoration is an essential means to enhance the dynamic stability of watercourses while concurrently improving habitat diversity and variability, as well as lowering long-term maintenance expenditures. Although the number of restoration projects has increased in recent years, scientific understanding is still limited with regards to the underlying principles determining how hydromorphological variability in restored river corridors relates to ecosystem functioning, biodiversity and (ground)water quality. In order to deal with the challenges of river restoration in a successful and efficient way, the mechanistic understanding of the coupled hydrological and ecological processes in near-river corridors has to be extended. Limitations in scientific progress in these areas have been particularly impaired by specific research rather than a multi-disciplinary endeavour that collaboratively investigates cause-and-effect relationships and re-examines historical assumptions and approaches. In the multi-disciplinary RECORD Project (Assessment and Modelling of Coupled Ecological and Hydrological Dynamics in the Restored Corridor of a River (Restored Corridor Dynamics)), we investigated coupled hydrological and ecological dynamics in a channelized and restored river section in northeast Switzerland by synthesizing physical, chemical, and biological experiments as well as modelling approaches. Hydrogeological research was focused on the infiltration processes of river water into aquifers. From the viewpoint of drinking water protection, it is of particular importance to determine which portion of the pumped water originates from the river and how long it takes to travel from the river to the pumping station. Therefore, we investigated the electrical conductivity and temperature of the water over a period of time, thereby gaining a tool for the quantitative analysis of mixing ratios and travel times.
机译：恢复河流是提高河道动态稳定性，同时改善栖息地多样性和多变性，并降低长期维护费用的重要手段。尽管近年来恢复项目的数量有所增加，但是对于确定恢复河流走廊中水文形态变异性如何与生态系统功能，生物多样性和（地下水）水质相关的基本原理，科学理解仍然有限。为了成功有效地应对河流修复的挑战，必须扩大对近江走廊水文和生态过程耦合的机理的理解。这些领域的科学进步受到了特定研究的特别削弱，而不是通过多学科的努力来共同研究因果关系并重新审查历史假设和方法。在多学科RECORD项目（河流恢复走廊的生态水文动力学耦合评估和建模（恢复走廊动力学））中，我们通过综合研究了瑞士东北部渠道化河道和恢复河段的水文和生态动力学耦合。物理，化学和生物学实验以及建模方法。水文地质研究的重点是河水渗入含水层的过程。从饮用水保护的角度来看，确定抽水的哪一部分来自河流以及从河流到抽水站需要多长时间特别重要。因此，我们研究了一段时间内水的电导率和温度，从而获得了定量分析混合比和行程时间的工具。

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