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Increase in suspended sediment discharge of the Amazon River assessed by monitoring network and satellite data
  • Increase in suspended sediment discharge of the Amazon River assessed by monitoring network and satellite data
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Amazonas River ; Brazil ; Discharge ; Fluvial hydrology ; Observation network ; Remote sensing ; Sediment budget ; Sediment transport ; Stream ; Suspended load
  • This study addresses the quantification of the Amazon River sediment budget which has been assessed by looking at data from a suspended sediment discharge monitoring network and remote sensing estimates derived from MODIS spaceborne sensor. Both
  • field and satellite-derived estimates of the sediment concentration of the Amazon River are combined to get an uninterrupted monthly average suspended sediment discharge from 1995 to 2007. Unlike the water discharge which exhibits a steady trend over
  • the same period at Óbidos (Brazil), the suspended sediment discharge increases since 1995.
The impact of environmental changes on the sediment loads of Norwegian rivers
  • The impact of environmental changes on the sediment loads of Norwegian rivers
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Agricultural land use ; Climatic change ; Erosion rate ; Flood ; Human impact ; Norway ; Sediment transport ; Soil erosion ; Stream ; Water erosion
  • The aim of this paper is to discuss some examples where detailed measurements of the sediment load have been made during extreme events. A selection of rivers representing the range of sediment yields and processes in various parts of Norway has
  • been studied in sediment monitoring programmes carried out by the Norwegian Water Resources and Energy Directorate. The combined effects of climate change and human impact on sediment transport in rivers appear to enhance downstream sediment delivery.
Preliminary modelling of sediment production and delivery in the Xihanshui River basin, Gansu, China
  • Preliminary modelling of sediment production and delivery in the Xihanshui River basin, Gansu, China
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Bank erosion ; China ; Gansu ; Gully erosion ; Land use ; Mass movement ; Model ; Sediment budget ; Sediment transport ; Soil conservation ; Soil erosion ; Watershed
  • This paper describes the preliminary application of a spatially-distributed method to quantify patterns and rates of sediment production in the Xihanshui basin, a tributary of the upper Yangtze; and to predict its routing to a downstream point
  • is therefore to assess the relative importance of sediment production processes under different climate and land cover conditions, and the controls of the spatial structure of delivery ratios within this large catchment, rather than to make explicit forecasts
  • of sediment production and yield for practical purposes.
Modelling the effects of land-use change on runoff and sediment yield for a meso-scale catchment in the Southern Pyrenees
  • Modelling the effects of land-use change on runoff and sediment yield for a meso-scale catchment in the Southern Pyrenees
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Catalonia ; Forest ; Land use ; Model ; Sediment budget ; Spain ; Water erosion ; Watershed
  • The land-use change over the last 50 years with subsequent effects on water and sediment export was modelled with the process-based, spatially semi-distributed WASA-SED model for the meso-scale Canalda catchment in Catalonia, Spain. It was forwarded
  • that the model yielded plausible results for runoff and sediment yield dynamics without the need of calibration. As there are only a very limited amount of measured data available on sediment budgets with altered land-use and climate change settings, the WASA-SED
  • model was used to obtain qualitative estimates on the effects of past and future change scenarios to derive a baseline for hypothesis building and future discussion on the evolution of sediment budgets in such a dryland setting. The reliability
The potential impact of projected change in farming by 2015 on the importance of the agricultural sector as a sediment source in England and Wales
  • The potential impact of projected change in farming by 2015 on the importance of the agricultural sector as a sediment source in England and Wales
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Agricultural land use ; Agricultural practice ; England and Wales ; Model ; Sediment budget ; Soil erosion ; Suspended load ; United Kingdom ; Water quality ; Watershed
  • The work reported in this contribution used a novel modelling framework to assess the impact of projected change in farming by 2015 on the relative input of the agricultural sector to the total suspended sediment load delivered to all rivers across
  • England and Wales. It required national scale sediment source apportionment to assess the current contributions of diffuse agricultural and urban sector losses, channel bank erosion and point source discharges to the total suspended sediment loads
  • delivered to all rivers. Results suggested that the agricultural sector dominates present day (year 2000) sediment inputs to rivers. Key limitations of the integrated modelling approach are discussed.
Changing sediment yield as an indicator of improved soil management practices in southern Brazil
  • Changing sediment yield as an indicator of improved soil management practices in southern Brazil
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Agricultural practice ; Brazil ; Land use ; Model ; Rio Grande do Sul ; Sediment budget ; Soil conservation ; Soil erosion ; Suspended load ; Water erosion ; Watershed
  • Rural Poverty : use of winter cover crops and minimum tillage tobacco cultivation. Data on precipitation, runoff volume, maximum flow and sediment yield were assembled for representative storm events occurring between May 2002 and March 2006
  • , and analyzed to identify changes in the storm runoff and storm-period sediment response of the study catchment. The results provide evidence of statistically significant reductions in storm runoff, maximum flow rate and sediment yield after implementation
  • of the conservation practices. Sediment sources were also investigated using the fingerprinting technique. Results emphasize the complexity of the relationship between sediment yield, the effects of climactic variability, and changes in land use and management.
Investigating the effect of afforestation on soil erosion and sediment mobilisation in two small catchments in Southern Italy
  • Investigating the effect of afforestation on soil erosion and sediment mobilisation in two small catchments in Southern Italy
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Calabria ; Environmental management ; Erosion rate ; Forest ; Isotope analysis ; Italy ; Mediterranean area ; Plant cover ; Sediment budget ; Soil erosion ; Watershed
  • The study focuses on 2 small basins (W2 and W3) located near Crotone, in Calabria, for which measurements of suspended sediment yield are available. Both the catchments originally supported a rangeland vegetation cover and they were planted
  • with eucalyptus trees in 1968. Attention focused on combining information on sediment yield from the 2 catchments obtained using traditional monitoring, with measurements of the fallout radionuclides caesium-137 and excess lead-210 undertaken on sediment samples
  • from the study catchments. The results demonstrate that the areas of greatest soil loss are associated with the slopes where the tree cover is discontinuous, and that forest harvesting by clearcutting causes significant short-term increases in sediment
  • mobilisation and sediment yield.
Sediment production following severe wildfire and post-fire salvage logging in the Rocky Mountain headwaters of the Oldman River Basin, Alberta
  • Sediment production following severe wildfire and post-fire salvage logging in the Rocky Mountain headwaters of the Oldman River Basin, Alberta
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Alberta ; Canada ; Environmental management ; Fire ; Meltwater ; Rocky Mountains ; Sediment budget ; Slope gradient ; Soil erosion ; Stream flow ; Water quality ; Watershed
  • Seven small watersheds with various levels of land disturbance (burned, post-fire salvage logged, unburned) were instrumented and monitored for 4 years to measure stream discharge, sediment concentration, and sediment yields for a range of dominant
Environmental change, hillslope erosion and suspended sediment : some observations from Hong Kong
  • Environmental change, hillslope erosion and suspended sediment : some observations from Hong Kong
  • Sediment sources and sediment delivery under environmental change. Special issue
  • and result in higher storm-period concentrations of suspended sediment. Monitoring carried out in a small drainage basin reveals that lanslides deliver sediment in an upland stream giving very high concentrations and affecting sediment properties, with the C
Boundary conditions of morphodynamic processes in the Mura River in Slovenia
  • Sediment sources and sediment delivery under environmental change. Special issue
  • Channel geometry ; Fluvial dynamics ; Grain size distribution ; Gravel ; River bed ; Sediment transport ; Slovenia ; Stream
  • In this paper, the AA. have analysed 3 key river dynamic relevant parameters, namely basic hydrologic parameters, sediment regime, and planview and cross section changes of the Mura River in Slovenia. They have obtained all available historical maps
  • and hydrological data, determined present sediment granulometry along the river and analysed changes in river morphology. The purpose of the study was to detect boundary conditions of morphodynamic processes in the Mura River in Slovenia as the first phase
Use of landslide-dammed lake deposits and pollen tracing techniques to investigate the erosional response of a small drainage basin in the Loess Plateau, China, to land use change during the late 16th century
  • Sediment sources and sediment delivery under environmental change. Special issue
  • China ; Dammed lake ; Land use ; Landslide ; Loess ; Palaeogeography ; Plateau ; Pollen analysis ; Sediment budget ; Shaanxi ; Sixteenth Century ; Soil erosion ; Stratigraphy ; Watershed
  • The study area, which centers on the Huangtuwa landslide, lies within the Rolling Loess Plateau in the Zizhou County in Shaanxi Province. Pollen tracing techniques have been applied to the sediment deposits in a former lake created by the Huangtuwa
Simulating site-specific impacts of climate change on soil erosion and surface hydrology in southern Loess Plateau of China
  • Sediment sources and sediment delivery under environmental change. Special issue
Quantitative assessment of effectiveness of soil conservation measures using a combination of Cs 137 radioactive tracer and conventional techniques
  • Sediment sources and sediment delivery under environmental change. Special issue