气候变化领域集成服务门户(CCPortal): Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study

CCPortal

DOI	10.5194/hess-22-2717-2018
	Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study
	Eschbach D.; Schmitt L.; Imfeld G.; May J.-H.; Payraudeau S.; Preusser F.; Trauerstein M.; Skupinski G.
发表日期	2018
ISSN	1027-5606
起始页码	2717
结束页码	2737
卷号	22 期号:5
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).
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
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160033
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., Lab...
推荐引用方式 GB/T 7714	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],2018,22(5).
APA	Eschbach D..,Schmitt L..,Imfeld G..,May J.-H..,Payraudeau S..,...&Skupinski G..(2018).Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study.Hydrology and Earth System Sciences,22(5).
MLA	Eschbach D.,et al."Long-term temporal trajectories to enhance restoration efficiency and sustainability on large rivers: an interdisciplinary study".Hydrology and Earth System Sciences 22.5(2018).