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  • Fluvial geomorphology of the Kupa River drainage basin, Croatia: A perspective of its application in river management and pollution studies
  • Channel geometry ; Croatia ; Environmental management ; Grain size distribution ; Human impact ; Pollution ; River bed ; Sediment transport ; Stream ; Stream flow
  • The AA. describe the geomorphology, tectonic setting, lithological framework and granulometric properties of the transboundary Kupa River basin. The generally meandering, east to west running course of the Kupa River starts from a karstic spring
  • in the mountainous region and flows down to the plains with braided channels. During the summer months, this potentially resourceful river is getting locally moribund and arrested within its course due to fall of river level and extremely uneven bed level
  • configuration along both transverse and longitudinal profiles of the river. Influx of pollutants and their restricted circulation in many places have led to severe eutrophication. Human interference has further caused modifications to the morphology
  • , morphodynamics and grain size characteristics of the river channel. Contamination from barite mine tailings, agriculture, industries and sewage waters has attained an alarming state on some stretches.
  • 2012
  • This paper dealt with sensitivity of potentiel evapotranspiration (Eo) over China, which was divided into 10 drainage systems, including Songhua River basin, Liaohe River basin, Haihe River basin, Yellow River basin, Yangtze River basin, Pearl River
  • basin, Huaihe River drainage system, Southeast river drainage system, Northwest river drainage system and Southwest river drainage system. In addition, the calculation method of global radiation in Penman-Monteith formula was improved by optimization
  • 2012
  • Pollution assessment of heavy metals along the Mekong River and dam effects
  • In this study, 8 sampling sites were selected to collect the bed sand samples along the mainstream of the Mekong River. In addition, the contents of 5 heavy metal elements and their spatial variability along the mainstream of the river were analyzed
  • ecological risk of heavy metals in the mainstream of the Mekong River is low. The AA. argue that the pollution of water and contamination of heavy metals in bed sediment caused by mining of mineral resources or geochemical background values in the Mekong
  • is not transmitted from the Upper to the Lower Mekong because of the reservoir sedimentation and dilution along the river.
  • 2012
  • [b1] Asian International Rivers Center, Yunnan University, Kunming, Chine
  • [b2] Yunnan Key Lab. for International Rivers and Transboundary Ecology Security, Kunming, Chine
  • Environmental change, hydromorphological reference conditions and the restoration of Polish Carpathian rivers
  • Environmental changes that took place in the catchments of Carpathian rivers during the twentieth century invalidate the historical state of the rivers as reference for their restoration. This is illustrated by a change from bar-braided to island
  • -braided channel pattern that occurred in the past century in unmanaged sections of the Czarny Dunajec in response to a reduction in flow and sediment dynamics of the river. The AA. indicate that reference conditions should be defined as those which exist
  • or would exist under present environmental conditions in the catchment but without human influence on the channel, riparian zone and floodplain of the river which is to be restored. This assumption was tested through the evaluation of hydromorphological
  • river quality of the Czarny Dunajec according to the European Standard EN-14614. The evaluation confirmed a high-status hydromorphological quality in an unmanaged channel section, which can thus be used as a reference for restoration of impacted river
  • 2012
  • Sediment export from French rivers to the sea
  • Sediment fluxes were assessed using the French river quality database, which is characterized by a low temporal resolution but long-term measurement periods. An improved rating curve approach (IRCA) using daily discharge data, which allows
  • of exported sediment and the size of the drainage basins. This is due to the variety of river basin typologies among these rivers, including lowland rivers in temperate climates, such as the Seine on the one hand and rivers draining mountainous areas in Alpine
  • /Mediterranean areas on the other hand, such as the Rhone. Differences between the river basins considered are also shown by temporal indicators describing the duration of the exports, which may be linked with sediment production processes over drained areas.
  • 2012
  • Opportunities for incorporating geography into the river basin management
  • Geography in Slovenia is not sufficiently involved in the management of river basins, so the A. designed a model of geographical approach to integrated management of water resources presented on the example of the Sotla river basin. He considered
  • the river basin with its inner diversity and heterogeneity as a basic spatial unit of management. This approach would be a supplement to present sustainable strategies of water management and it could be applied by appropriate study programmes in geography
  • 2012
  • Interaction between the controls on fluvial system development: tectonics, climate, base level and river capture – Rio Alias, Southeast Spain
  • The river drains 2 interconnected Neogene sedimentary basins, the Sorbas and Almeria basins, and crosses 2 major geological structures, the Sierras de Alhamilla/Cabrera and the Carboneras Fault Zone. Regional epeirogenic uplift resulted in sustained
  • fluvial incision during the Quaternary, punctuated by major climatically driven periods of aggradation and dissection, which created a suite of 5 river terraces. The river terrace sequence was radically modified in the late Pleistocene by a major river
  • -level change or river capture to varying degrees. The connectivity of the system from the headwaters to the coast decreased through time as incision progressed, resulting in changes in local coupling characteristics.
  • 2012
  • Origin and flow dynamics of perennial groundwater in continuous permafrost terrain using isotopes and noble gases : case study of the Fishing Branch River, Northern Yukon, Canada
  • Perennially flowing groundwater discharges along a 15-km section of the Fishing Branch River, Yukon causing open water during winter and numerous discrete springs near Bear Cave Mountain. Groundwater flow occurs in karstified marine carbonate rocks
  • as well as in alluvial river talik(s). The isotopic analyses show 3 groundwater chemistry groups and variability in surface water chemistry. The variations in water chemistry are related to differences in the rocks exposed in the recharge area. River
  • discharge was measured during spring and summer under different water-level conditions. Winter baseflow was calculated based on summer discharge measurements and the width of the river channel in winter. Although river flow decreases in winter, groundwater
  • 2012
  • Chute channel dynamics in large, sand-bed meandering rivers
  • ; Strickland River ; Zone intertropicale
  • This study applied binary logistic regression analysis to determine whether it is possible to predict chute initiation based on attributes of meander bend character and dynamics. Regression models developed for the Strickland River, Papua New Guinea
  • , the lower Paraguay River, Paraguay/Argentina, and the Beni River, Bolivia, revealed that the probability of chute initiation at a meander bend is a function of the bend extension rate (the rate at which a bend elongates in a direction perpendicular
  • to the valley axis trend). Image analyses of all rivers and field observations from the Strickland suggest that the majority of chute channels form during scroll–slough development. Rapid extension is shown to favour chute initiation by breaking the continuity
  • 2012
  • Changes of river bed pattern of a lowland river : effect of natural processes or anthropogenic intervention ?
  • GPR and aerial surveys were conducted to study changes of channel pattern in the lower course of the Obra River (western Poland). A 3D analysis of the GPR data supported with lithologic information indicated traces of a multi-channel pattern
  • . A variable orientation of sediment layering within channel bars and differences in channels depth and width pointed to changes of direction of the river bed migration. Analysis of aerial photographs and a satellite image indicated that only a few
  • of the channels inferred from GPR could be discerned. Analysis of historical maps from the eighteenth and the nineteenth centuries showed that 250 years ago the Obra was a meandering river. The maps illustrate also several meander cutoffs and decreased wetlands
  • 2012
  • Historical perspectives on river restoration design in the USA
  • River restoration as a science needs to balance numerical analysis with a more general systems understanding typical of a classification-based approach. Davis' nomenclature and Gilbert’s analytical processes are both necessary to understand
  • and discuss landscape geomorphology. Similarly, both Rosgen’s classification system, or one like it, and other more analytical, process-based examinations, are necessary for a comprehensive approach to river restoration. It is clear that multiple viewpoints
  • 2012
  • Water temperatures of the Danube and Tisza Rivers in Hungary
  • Based on a 60-year long hydrological observation series from the Hungarian Hydrological Service (between 1951 and 2010), the monthly mean water temperatures of both largest rivers in the Carpathian Basin, the Danube and the Tisza were studied
  • in the paper. The monthly extremes in water temperatures were explained by the different climatic conditions in the drainage basins of the rivers : the Danube basin upstream its entrance to Hungarian territory with a marked Atlantic and the Tisza basin
  • 2012
  • Spatial variations in excess shear stress in a gravel-bed river bend
  • Colorado ; Colorado River ; Contrainte de cisaillement ; Cours d'eau ; Distribution spatiale ; Dynamique fluviale ; Etats-Unis ; Granulométrie ; Géométrie hydraulique ; Modèle ; Méandre ; Rocky Mountains ; Seuil ; Transport sédimentaire
  • Detailed topographic and hydraulic measurements were obtained in a bend of the Colorado River in Rocky Mountain National Park, Colorado, to characterize flow through the reach with a two-dimensional model. The distribution of excess shear stress
  • 2012
  • Log-jams and avulsions in the San Antonio River Delta, Texas
  • Avulsion ; Bois flottant ; Chenal anastomosé ; Cours d'eau ; Delta ; Etats-Unis ; Géométrie hydraulique ; San Antonio River ; Tectonique ; Texas
  • The goal of this paper is to analyze the recent avulsion history of the San Antonio River Delta (SARD), Texas, with respect to avulsion type and frequency, the relative importance of various setup and trigger factors, and the maintenance of a multi
  • 2012
  • Temporal and spatial variations and statistical models of extreme runoff in Huaihe River Basin during 1956–2010
  • Based on the daily runoff data from 20 hydrological stations above the Bengbu Sluice in the Huaihe River Basin during 1956–2010, run test, trend test and Mann-Kendall test are used to analyze the variation trend of annual maximum runoff series
  • . Temporal and spatial variations of extreme runoff in the Huaihe River Basin are analyzed. The results show that during the period 1956–2010 in the Huaihe River Basin, annual maximum runoff at 10 stations have a decreasing trend, while the other 10 stations
  • have an unobvious increasing trend. The maximum runoff events almost occurred in the flood period during the 1960s and 1970s. The extreme runoff events in the Huaihe River Basin mainly occurred in the mainstream of the Huaihe River, Huainan mountainous
  • in the Huaihe River Basin.
  • 2012
  • Reconstruction of cultivated land during mid-Holocene in the middle and lower reaches of Yellow River and human impact on vegetations
  • in the Weihe River valley, Luohe River valley, northwestern Henan Plain, Fenhe River valley and eastern Gansu region, especially concentrated in the Xi’an-Baoji line of the Weihe River valley. Charcoal records indicate that the ancestors of Yangshao culture
  • 2012
  • Comparison of methods for quantifying active layer dynamics and bedload discharge in armoured gravel-bed rivers
  • Ardenne ; Belgium ; Duricrust ; Flood ; River bed ; Sediment load ; Sediment transport ; Stream ; Tracer
  • The bedload discharge in the Ardennian rivers (Belgium) has been evaluated by combining data obtained using the scour chains technique and the distance covered by tracers. Quantities of sediment transported during frequent floods are relatively low
  • of the bedload discharge is composed of sand and fine gravel transported over greater distances than the pebbles. The break-up of the armour layer was observed only once, for a decennial discharge. In the Lembrée River, the river-bed contains slag elements up
  • 2012
  • The anastomosing pattern and the extensively distributed scroll bars in the middle Amazon River
  • Amazonas River ; Braided channel ; Brazil ; Channel geometry ; Meander ; Morphostratigraphy ; Scroll bar ; Space time ; Stream ; Vegetation
  • The middle Amazon River, between the confluences of the Negro and Madeira Rivers in Brazil, shows an anastomosing morphology with relatively stable, multiple interconnected channels that locally enclose floodbasins. The AA. analyzed sedimentary
  • processes using field data, morphology and channel changes trough a temporal analysis using remote sensing data and obtained optically stimulated luminescence (OSL) dating to understand the genesis of this large anastomosing river and the development of its
  • 2012
  • Combining historical and process perspectives to infer ranges of geomorphic variability and inform river restoration in a wandering gravel-bed river
  • Aménagement hydraulique ; Analyse quantitative ; Barrage ; Chenal anastomosé ; Clark Fork River ; Cours d'eau ; Etats-Unis ; Géographie historique ; Géométrie hydraulique ; Modèle conceptuel ; Montana ; Méandre ; Photographie aérienne ; Restauration
  • Analysis of historical sources and aerial photographs of the Clark Fork River's pre-mining, mining, and more recent history suggest that a wandering channel pattern has persisted despite variations in sediment supply and transport capacity
  • 2012
  • Feasibility analysis of widely accepted indicators as key ones in river health assessment
  • In this paper, some key indicators which can be applied for river health assessment in general were selected, based on the analysis of 45 assessment index systems with 902 variables within around 150 published papers and documents in 1972–2010
  • suggested as the key indicators for assessing river health, which were : coverage rate of riparian vegetation, reserved rate of wetland, river continuity, the changing rate of water flow, the ratio of reaching water quality standard, fish index of biotic
  • 2012
  • [b1] Asian International Rivers Center, Yunnan University, Kunming, Chine