Suspended sediment load during floods in a small stream of the Dolomites (northeastern Italy)

Auteurs :
LENZI, M.A.
MARCHI, L.

Description :
Suspended sediment load was analyzed in a small, high-gradient stream of the Eastern Italian Alps which was instrumented to measure discharge and sediment transport. The ratio of suspended to total sediment yield and the relations between sediment concentration and water discharge were analyzed for 7 floods which occurred from 1991 to 1996 in summer and autumn. Different patterns of hysteresis in relation between suspended sediment and discharge were related to types and locations of active sediment sources. An analysis of grain size has shown that erosion areas on hillslopes were the main sources of suspended load.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2000, vol. 39, n°. 4, p. 267-282, Collation : Illustration, Références bibliographiques : 52 ref.

Date :
2000

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena