English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/162597
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Potential of iron oxides to assess connectivity in sediment transport

AutorGuzmán, Gema ; Gómez Calero, José Alfonso
Fecha de publicaciónsep-2016
Citación4th MC meeting and WG meetings (2016)
ResumenThe knowledge of water erosion processes is essential when predicting the effects of soil conservation struc- tures aimed to disrupt connectivity in sediment transport across the landscape. Experiments (field and laboratory) measuring the overall effect of these structures and model analysis are usually the techniques used to evaluate their effectiveness. The use of sediment tracers is an attractive tool to complement those technologies. During the last years a tracer methodology based on the application of iron oxides as magnetite, hematite and goethite to the top soil profile has been evaluated. The use of these iron oxides as sediment traces has been validated in laboratory and field experiments. They have been employed, afterwards, to monitor preferential flows, identify sources of sediments, quantify medium term erosion rates and to map soil redistribution within agricultural fields due to erosion and deposition. Despite of their limitations (to be discussed in the presentation) they provide useful information to evaluate the efficiency of water conservation measurements such as grass strips or stone bunds to optimize their imple- mentation and to calibrate parameters for improving the accuracy of soil erosion models, and therefore to extrapolate their results to larger spatial and temporal scales.
DescripciónTrabajo presentado en la 4th MC meeting and WG meetings (Connecteur), celebrado en Praga del 21 al 23 de septiembre de 2016.
URIhttp://hdl.handle.net/10261/162597
Aparece en las colecciones: (IAS) Comunicaciones congresos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.