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Erosion measurements by concentrated flow in olive orchard farms: a study case in a microcatchment under no-tillage with a grass spontaneous cover

AutorGuzmán, Enrique; Taguas, E. V.; Guzmán, Gema ; Vanwalleghem, Tom ; Gómez Calero, José Alfonso
Fecha de publicaciónabr-2013
EditorEuropean Geosciences Union
CitaciónEGU General Assembly (2013)
ResumenIn olive grove land-uses, most studies of soil losses have been conducted to quantify inter-rill erosion at the plot scale or the total sediment load, at the catchment scale. However, work carried out on others land uses in the Mediterranean area have justified that the description of soil losses resulting from concentrated flow is essential since it can jeopardise production and sustainability of commercial farms (e.g. De Santisteban et al., 2006; Castillo, 2012). In this work, measurements of gullies and rills have been done in an olive orchard microcatchment of 6.1 ha during three years (Jul-2010, Jul-2011 and Jul-2012). No tillage management allowing the development of a grass spontaneous cover was applied in the study period. Moreover, data of rainfall, runoff and sediment load in the catchment outlet were measured. The objectives of this study were: 1) the quantification of the erosion by concentrated flow in the catchment for hydrological years with different features; 2) as well as the description of the morphological changes (width, depth, drainage area and slope) in rills and gullies associated to the annual climate regime and management operations.
DescripciónPóster presentado en la European Geosciences Union General Assembly, celebrada en Viena del 7 al 12 de abril de 2013.
URIhttp://hdl.handle.net/10261/97025
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