Mostrar el registro sencillo del ítem Evrard, Olivier Le Gall, Marion Laceby, J. Patrick Foucher, Anthony Lefèvre, Irène Salvador-Blanes, Sébastien Morera Julca, Sergio Byron Ribolzi, Olivier 2018-08-02T15:46:35Z 2018-08-02T15:46:35Z 2017-12-15
dc.description Presentado en: American Geophysical Union, Fall Meeting 2017. Section: Earth and Planetary Surface Processes, New Orleans 11-15 December 2017. Abstract #EP53E-03 -Emerging Technologies and Advances in Identifying Catchment Sediment Sources.
dc.description.abstract Soil erosion and fine sediment supply to rivers are exacerbated in intensively cultivated catchments. Information on the sediment sources and transit times in rivers is required to improve our understanding of these processes and to guide the implementation of effective conservation measures. Accordingly, natural (7Be, 210Pb) and artificial (137Cs) fallout radionuclide concentrations were measured in overland flow and suspended sediment collected during the erosive season in contrasted cultivated catchments. In Laos, samples were collected in a steep catchment (Houay Pano, 12 km²) covered with cropland and teak plantations during the first flood of the monsoon in 2014. Cropland surface sources dominated the supply of sediment at the upstream sampling location (55%), whereas subsurface sources (channel, landslides) contributed the majority of material at the outlet (60%). Furthermore, the material exported from the catchment mainly consisted of re-suspended sediment. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Sediment transport es_ES
dc.subject Monsoons es_ES
dc.subject Flood routes es_ES
dc.subject Suspended sediments es_ES
dc.subject Soil erosion es_ES
dc.subject Hydrology es_ES
dc.title Quantifying the sources and the transit times of sediment using fallout radionuclides (7Be, 137Cs, 210Pbxs) in contrasted cultivated catchments across the world es_ES
dc.type info:eu-repo/semantics/conferenceObject es_ES
dc.subject.ocde es_ES




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