Solr Search · GéoProdig, portail d'information géographique

Linking the field to the stream : Soil erosion and sediment yield in a rural catchment, NW Spain
at field scale with sediment yield measured at the catchment outlet during winter 2007/08. The results indicate that concentrated flow erosion, i.e., rills and ephemeral gullies, occurred on unprotected crop fields. Erosion by concentrated flow was highly
connectivity between erosion areas and the stream. The results of this study suggest that in the Corbeira catchment soil loss cannot be estimated from the sum of individual field soil losses. The observations reveal that soil erosion rates measured at one scale

and decrease with plot length. Improving runoff coefficient prediction at the field scale is desirable.

for a set of storms. The results were evaluated at 2 spatial scales, that of fields (considering both (inter-) rill and gully erosion) and that of the entire catchment; and analyzed according to the dominant land-cover types in the catchments.

evaluated. Uncertainty analyses reveal an overall error of 34 % of the model results and outline the contribution of each input data set. The findings from this study are used for policy support in the field of soil and water resources management.

Résultats de la recherche (4 résultats)