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  • The sensitivity of Scottish rivers and upland valley floors to recent environmental change
  • Landscape sensitivity : principles and applications in northern cool temperate environments
  • Atmospheric circulation ; Flood ; Global change ; Land use ; Nineteenth Century ; River bed ; Scotland ; Sensitivity analysis ; Stream ; United Kingdom ; Valley floor evolution
  • Analyse de sensibilité ; Changement global ; Circulation atmosphérique ; Cours d'eau ; Crue ; Evolution de vallée ; Lit fluvial ; Royaume-Uni ; Scotland ; Siècle 19 ; Utilisation du sol
  • This paper examines the stability of river channels and their associated valley floors in the uplands of Scotland since 1750. Changes in global-scale atmospheric circulation patterns during this period have resulted in regionally district flood-rich
  • and flood-poor periods with potential geomorphic impacts. Changes in the planform of 9 active rivers in the piedmont zone of upland Scotland are examined from series of rectified maps and aerial photographs at scales close to 1:10 000. Differences
  • in geomorphic history, land use and degree of slope-channel coupling are identify as the likely causes of marked differences in the behaviour of active rivers in Scotland and northern England over the last 250 years.
  • Fluvial chronology and valley floor evolution of the upper Bowmont valley, Borders Region, Scotland
  • C 14 dating ; Climatic variation ; Fluvial processes ; Fluvial terrace ; Geochronology ; Land use ; Little ice age ; Palaeo-ecology ; Palynology ; Scotland ; United Kingdom
  • Datation C 14 ; Fluviatile ; Géochronologie ; Palynologie ; Paléo-écologie ; Petit âge glaciaire ; Royaume-Uni ; Scotland ; Terrasse fluviatile ; Utilisation du sol ; Variation climatique
  • This paper presents data from a number of sources (aerial photographic interpretation, field mapping, cartographic, radiocarbon and palynological dating), in order to establish limits to the ages of valley floor terraces on one such upland stream
  • draining the northern Cheviot hills, Scotland.
  • Geomorphic responses to land use changes. Special issue
  • Channel evolution of the pre-channelized Danube River in Bratislava, Slovakia (1712-1886)
  • Bank erosion ; Bratislava ; Channel geometry ; Danube ; Eighteenth Century ; Flood ; Fluvial dynamics ; Historical mapping ; Human impact ; Meander ; Nineteenth Century ; Slovak Republic ; Stream
  • of the upper area of a large alluvial fan. The key mechanisms of channel change were avulsions through channel switching into chute channels, meander development through progression and cutoffs, and abandonment of secondary channels. The gravel-bed Danube River
  • Channel adjustments of the Danube River near Bratislava are reconstructed from historical river maps for 1712-1886, the period preceding mid-course channelization. The study reach comprised an anastomosing-meandering planform, characteristic
  • Last century valley floor modifications of the Trigno river (Southern Italy) : a preliminary report
  • Earth surface processes ; Floodplain ; Fluvial landform ; Human impact ; Italy ; Longitudinal section ; Southern Italy ; Stream
  • for the last decades significant modifications of the channel pattern and a marked reduction of the floodplain width, accompained by a progressive valley floor terracing due to channel bed lowering. Analyses of possible controls on river behaviour, both natural
  • The recent evolution and present dynamics of the Trigno river was investigated by analysing morphological features and changes with time of the main channel system and the associated floodplain. The study allowed to point out in particular
  • and human-induced, allowed to advance some hypotheses about the relationship between the modifications of external conditions and river processes in the study area. - (NF)
  • Multi-scale characterization and evolution of channel forms in gravel-bed rivers
  • Supplementary data confirming the relationship between critical Shields stress, grain size and bed slope
  • Experimentation ; Grain size distribution ; Hydrological regime ; River bed ; Runoff ; Scotland ; Sediment transport ; Slope gradient ; Stream flow ; Threshold ; United Kingdom
  • Ecoulement ; Ecoulement fluvial ; Expérimentation ; Granulométrie ; Lit fluvial ; Pente de versant ; Royaume-Uni ; Régime hydrologique ; Scotland ; Seuil ; Transport sédimentaire
  • for a range of flows at different bed slopes. A reference transport method was used to define the beginning of sediment motion. The experimental data confirm the recent finding that the critical Shields stress for motion of coarse uniform sediment varies
  • This paper presents new experimental data on threshold conditions for motion of coarse uniform sediments. The experiments were conducted with gravel in a flume and included measurements of hydraulic characteristics and rate of bed particle movement
  • with both grain size and bed slope.
  • Holocene development of the River Lippe valley, Germany : a case study of anthropogenic influence
  • Channel geometry ; Fluvial terrace ; Germany ; Holocene ; Human impact ; Hydraulic works ; Meander ; Model ; North Rhine Westfalia ; Palaeohydrology ; River bed ; Stream
  • This article describes the Inselterrasse and Aue in detail and explains the Holocene development of the Lippe valley floor morphology, which is atypical for a central European river. It is shown that morphological evolution of the Lippe valley floor
  • is a special case of anthropogenic influence that might be an interesting addition to previous studies of human impacts on palaeohydrology, channel change and valley floor development (Gregory, 1995; Brown, 1996; Kalicki,1996).
  • Holocene land-use change and its impact on river basin dynamics in Great Britain and Ireland
  • Climate ; Fluvial dynamics ; Great Britain ; Holocene ; Human impact ; Impact ; Ireland ; Land use ; River basin ; Slope gradient ; United Kingdom ; Valley floor evolution
  • Action anthropique ; Bassin fluvial ; Climat ; Dynamique fluviale ; Evolution de vallée ; Great Britain ; Holocène ; Impact ; Irlande ; Pente de versant ; Royaume-Uni ; Utilisation du sol
  • Erosion de pente de versant des hautes terres. Evolution de vallée de hautes terres. Erosion de pente de versant de basses terres. Evolution de vallée de basses terres. Modèles de réponse d'un bassin fluvial à un changement d'environnement à
  • The River Helmsdale and Strath Ullie, c. 1830–c. 1920: A Historical Perspective of Societal and Environmental Influences on River Management
  • Fishing ; Historical geography ; Nineteenth Century ; River management ; Scotland ; Society-environment relationship ; Stream ; United Kingdom ; climate and meteorology ; economic geography ; historical geography
  • Aménagement fluvial ; Cours d'eau ; Géographie historique ; Helmsdale ; Pêche ; Relation société-environnement ; Royaume-Uni ; Scotland ; Siècle 19
  • on salmon fishing. Second, the estate papers are employed to highlight the environmental challenges caused by earlier land improvement policies, which threatened the success of this economic diversification strategy. Third, archival case studies are used
  • professionnalisation évolutive de la pratique de la gestion fluviale pendant cette période, cruciale pour donner une importance durable de cette ressource jusqu'à aujourd'hui.#This paper considers the following objectives, specific to key events in the latter part
  • to demonstrate the hierarchical and evolving professionalisation of river management practice during this period, as pivotal to the sustained importance of this resource to the strath today.
  • Changes of river channels in Europe during the Holocene
  • Changing river channels
  • Europe ; Fluvial dynamics ; Fluvial processes ; Geomorphogenesis ; Holocene ; Palaeogeography ; Quaternary ; River bed ; Stream ; Valley floor evolution
  • Cours d'eau ; Dynamique fluviale ; Europe ; Evolution de vallée ; Fluviatile ; Géomorphogenèse ; Holocène ; Lit fluvial ; Paléogéographie ; Quaternaire
  • The A. describes the diversity of existing river channels on the European territory and their evolution during last 18 ka BP. He discuss the role of various factors starting from climatic changes influencing the hydrological regime, the tectonic
  • factor, lithological factor, deglaciation, marine transgression and anthropogenic impact. In reality the changes in the channel pattern depend on the combination of various factors. - (DG)
  • Medium-term fluvial island evolution in a disturbed gravel-bed river (Piave River, Northeastern Italian Alps)
  • Aerial photography ; Alps (The) ; Flood ; Fluvial dynamics ; Fluvial island ; Gravel ; Human impact ; Italy ; LiDAR ; River bed ; Stream ; Vegetation ; Veneto
  • Plan-form changes of river features since 1960 were analyzed using aerial photographs, and a LiDAR was used to derive the maximum, minimum and mean elevation of island surfaces, and maximum and mean height of their vegetation, in a 30-km-long reach
  • of the gravel-bed Piave River. The results suggest that established islands lie at a higher elevation than building and pioneer islands, and have a thicker layer of fine sediments deposited on their surface after big floods. After the exceptional flood in 1966
  • there was a moderate increase in island numbers and extension, followed by a further increase from 1991, due to a succession of flood events in 1993 and 2002, as well as a change in the human management relating to the control of gravel-mining activities. The narrowing
  • [b1] Dept. of Land, Environment, Agriculture and Forestry, Univ., Padova, Italie
  • Multi-scale characterization and evolution of channel forms in gravel-bed rivers
  • Channel adjustments, bedload transport and sediment sources in a gravel-bed river, Brenta River, Italy
  • Alps (The) ; Bank erosion ; Carrying capacity ; Channel geometry ; Human impact ; Italy ; Nineteenth Century ; Sediment budget ; Sediment load ; Stream ; Twentieth Century
  • This paper deals with the Brenta River, a gravel-bed river strongly affected by human impact. The aims of this work are 1) to reconstruct the channel adjustments that have occurred during the last decades and 2) to analyse the present condition
  • of the river in terms of bedload transport and sediment sources. The study reach was investigated using historical maps, aerial photographs, monumented cross-sections, laser altimetry data and field survey. Bedload transport rates were estimated
  • by a morphological approach, which allows the construction of a sediment budget. The results should be taken into account in addressing sediment management and restoration along a dynamic and unstable river such as the Brenta.
  • Rate of glacial valley deepening during the Late Quaternary in Assynt, Scotland
  • Special Issue: Geomorphic processes/landscape evolution
  • Cave ; Dating ; Erosion cycle ; Erosion rate ; Glacial erosion ; Glacial features ; Glacial valley ; Interglacial ; Isotope analysis ; Quaternary ; Scotland ; United Kingdom ; Uranium
  • Analyse isotopique ; Cycle d'érosion ; Datation ; Erosion glaciaire ; Glaciaire ; Grotte ; Interglaciaire ; Quaternaire ; Royaume-Uni ; Scotland ; Uranium ; Vallée glaciaire ; Vitesse d'érosion
  • A dated landscape history of the Allt nan Uamh valley in the Assynt area is constructed, spanning the last 300 ka, using geomorphological analysis, U-series speleothem dating, and existing cave surveys. The mean rate of valley deepening is estimated
  • Evolution of channel morphology and hydrologic response in an urbanizing drainage basin
  • Baltimore ; Channel geometry ; Flood ; Hurricane ; Hydrological regime ; Hydrology ; Maryland ; Stream ; United States of America ; Urbanization ; Watershed
  • Here the AA. examine changes in channel morphology and trends in hydrologic response in Dead Run, a stream located in the Baltimore metropolitan area whose catchment experienced substantial land use change associated with urban development
  • in the mid- to late 20th century. To gain further insight into the potential effects of the channel's flood hydraulics on its morphology, the AA. use a two-dimensional depth-averaged hydraulic model to compute the spatial distributions of boundary shear
  • stress and unit stream power associated with the flooding following Hurricane Agnes (June 1972).
  • Holocene floodplain metamorphosis in the Midlands, United Kingdom
  • Special issue : Floodplain evolution
  • England ; Floodplain ; Fluvial processes ; Holocene ; Model ; Paleo-environment ; Quaternary ; United Kingdom
  • channels underwent a metamorphosis. This metamorphosis, which is explained by the stable-bed aggrading-banks model (SBAB), is the key factor in the Holocene evolution of low-energy floodplain systems in the United Kingdom, upon which more subtle short-term
  • This paper presents a comparison of the pre- and post-late Holocene palaeo landsurfaces and paleochannels using data from the Nene, Soar and Severn valleys. From this comparison it is argued that during the mid to late Holocene floodplains and river
  • Evolution des types d'utilisation du sol dans le bassin de la rivière Otava en 1845-1948-1990
  • Czech Republic ; Flood ; Geographical information system ; Land use ; Nineteenth Century ; River basin ; Twentieth Century
  • The article describes general trends in development of various land use classes and the general structure in the Otava river basin. - (EN)
  • Spatial patterns of historical overbank sedimentation and floodplain evolution, Blue River, Wisconsin
  • Alluvium ; Carrying capacity ; Channel geometry ; Flood ; Floodplain ; Fluvial processes ; Meander ; Model ; Multivariate analysis ; Sedimentation ; Stream flow ; Terrace ; United States of America ; Wisconsin
  • This paper examines the processes that influence spatial patterns of historical floodplain sedimentation and the implications for the evolution of floodplains in the Blue River watershed, Wisconsin. The storage of historical overbank sediments
  • is influenced by valley width, stream power, and the development of meander belts.
  • L'évolution de la vallée de l'Ohře dans les monts Doupov
  • Czech Republic ; Fluvial processes ; Fluvial terrace ; Geomorphogenesis ; Mountain ; Slope ; Valley floor evolution
  • Evolution de vallée ; Fluviatile ; Géomorphogenèse ; Montagne ; Tchèque, république ; Terrasse fluviatile ; Versant
  • A characterization of the geomorphologic conditions of the Ohře river valley in the neighbourhood of Doupov mountains. The terrace system and the slope conditions of the river bed in relation to the morphostructure and genesis of the relief
  • . The Ohře river valley in the neovolcanic Doupov mountains has been originated in Miocene in a zone of tectonic bend between the basalt lava streams of the stratovolcan centre and volcanic bodies in the northern rim. - (MS)
  • Bank erosion ; Channel geometry ; Erodibility ; Flood ; Hydraulic works ; Impact ; Longitudinal section ; Mississippi ; River bed ; Stream ; United States of America
  • As a response to channelization projects undertaken near the turn of the 20th century and in late 1960s, upstream reaches and tributaries of the Yalobusha River, Mississippi, have been rejuvenated by upstream-migrating knickpoints. Sediment
  • a model of channel evolution and analysis of thalweg elevations and channel slopes indicates that downstream reaches have equilibrated but that upstream reaches are actively degrading.
  • Fossil valleys of the Mostecká pánev (Basin)
  • Czech Republic ; Fluvial dynamics ; Fluvial processes ; Fluvial terrace ; Meander ; River bed ; Valley ; Valley floor evolution
  • Dynamique fluviale ; Evolution de vallée ; Fluviatile ; Lit fluvial ; Méandre ; Tchèque, république ; Terrasse fluviatile ; Vallée
  • Valley stretches abandoned by watercourses at Quaternary, represent district landforms of the fluvial erosion-accumulation relief in the northern part of the Bohemian Upland. Four abandoned valleys and numerous Ohře River meanders were discussed
  • . The main hydrographic change in the region-diversion of the Ohře Rivber channel from Postoloprty to Bílina Rivcer to the current eastern direction - has induced new orientation of certain brooks and intense development of Ohře meanders in the Most basin
  • Sensitivity of landscape evolution and geomorphic processes to direct and indirect human influence
  • Earth surface processes ; Human impact ; Italy ; Land use ; Landscape ; Twentieth Century
  • landscape sensitivity. The effect of geomorphic change is added to that of climate change and implies an acceletation of landscape evolution rates as well as an intensification of geomorphic hazards. It is suggested that measures to mitigate geomorphic
  • in several study areas are analysed. Data obtained indicate that people are nowadays the main geomorphic agent. It is proposed that growing population, wealth and technology is the driving force behind a widespread global geomorphic change that affects
  • An assessment of some consequences of human activities on geomorphologic processes during the last century is presented. The effects of urban infrastructure development and mining on direct and indirect denudation and geologic materials transport
  • change should be taken in order to curb the observed trend towards increasing geomorphic disaster occurrence. - (NF)