globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-2717-2018
论文题名:
Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study
作者: Eschbach D.; Schmitt L.; Imfeld G.; May J.-H.; Payraudeau S.; Preusser F.; Trauerstein M.; Skupinski G.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:5
起始页码: 2717
结束页码: 2737
语种: 英语
Scopus关键词: Bioaccumulation ; Decision making ; Deposition ; Efficiency ; Heavy metals ; Sediments ; Sustainable development ; Anthropogenic activity ; Anthropogenic disturbance ; Engineering works ; Heavy metal accumulation ; Hydrological modeling ; Inter-disciplinary studies ; Sediment chemistry ; Temporal trajectories ; Restoration ; anthropogenic effect ; decision making ; depositional environment ; efficiency measurement ; floodplain ; heavy metal ; human activity ; hydrological modeling ; interdisciplinary approach ; island ; morphodynamics ; physicochemical property ; restoration ecology ; river channel ; river management ; sediment chemistry ; sustainability ; temporal analysis ; trajectory ; Europe
英文摘要: While the history of a fluvial hydrosystem can provide essential knowledge on present functioning, historical context remains rarely considered in river restoration. Here we show the relevance of an interdisciplinary study for improving restoration within the framework of a European LIFE+ project on the French side of the Upper Rhine (Rohrschollen Island). Investigating the planimetric evolution combined with historical high-flow data enabled us to reconstruct pre-disturbance hydromorphological functioning and major changes that occurred on the reach. A deposition frequency assessment combining vertical evolution of the Rhine thalweg, chronology of deposits in the floodplain, and a hydrological model revealed that the period of incision in the main channel corresponded to high rates of narrowing and lateral channel filling. Analysis of filling processes using Passega diagrams and IRSL dating highlights that periods of engineering works were closely related to fine sediment deposition, which also presents concomitant heavy metal accumulation. In fact, current fluvial forms, processes and sediment chemistry around Rohrschollen Island directly reflect the disturbances that occurred during past correction works, and up to today. Our results underscore the advantage of combining functional restoration with detailed knowledge of the past trajectory to (i) understand the functioning of the hydrosystem prior to anthropogenic disturbances, (ii) characterize the human-driven morphodynamic adjustments during the last 2 centuries, (iii) characterize physico-chemical sediment properties to trace anthropogenic activities and evaluate the potential impact of the restoration on pollutant remobilization, (iv) deduce the post-restoration evolution tendency and (v) evaluate the efficiency and sustainability of the restoration effects. We anticipate our approach will expand the toolbox of decision-makers and help orientate functional restoration actions in the future. © 2018 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163316
Appears in Collections:气候变化与战略

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作者单位: Eschbach, D., Laboratoire Image Ville, Environnement (LIVE UMR 7362), Université de Strasbourg, CNRS, ENGEES, ZAEU LTER, Strasbourg, France, Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, Paris, 75005, France; Schmitt, L., Laboratoire Image Ville, Environnement (LIVE UMR 7362), Université de Strasbourg, CNRS, ENGEES, ZAEU LTER, Strasbourg, France; Imfeld, G., Laboratoire d'Hydrologie et de Géochimie de Strasbourg (LHyGeS UMR 7517), Université de Strasbourg, CNRS, ENGEES, Strasbourg, France; May, J.-H., Institute of Earth and Environmental Sciences, University of Freiburg, Freiburg, Germany, School of Geography, University of Melbourne, Melbourne, Australia; Payraudeau, S., Laboratoire d'Hydrologie et de Géochimie de Strasbourg (LHyGeS UMR 7517), Université de Strasbourg, CNRS, ENGEES, Strasbourg, France; Preusser, F., Institute of Earth and Environmental Sciences, University of Freiburg, Freiburg, Germany; Trauerstein, M., Institute of Geography, University of Bern, Bern, Switzerland; Skupinski, G., Laboratoire Image Ville, Environnement (LIVE UMR 7362), Université de Strasbourg, CNRS, ENGEES, ZAEU LTER, Strasbourg, France

Recommended Citation:
Eschbach D.,Schmitt L.,Imfeld G.,et al. Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study[J]. Hydrology and Earth System Sciences,2018-01-01,22(5)
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