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(Article of periodic en Anglais - 2014)

Document title

On the assessment of the management priority of sediment source areas in a debris-flow catchment

Authors(s) and Affiliation(s)

D'AGOSTINO V. (1) ; BERTOLDI G. (1) ;
(1) Dept. of Land, Environment, Agriculture and Forestry, Univ., Padova, ITALIE

Abstract

In this paper, a new methodology is proposed that develops a Management Priority Index (MPI) to rank sediment source areas by their quantitative capability to deliver debris-flow volumes to a point of interest within the catchment. The MPI sets the intervention priority based on a combination of 3 sub-indicators : a susceptibility indicator evaluating the overall catchment predisposition to generate debris flow, a triggering indicator and a volume budget indicator assessing the rate of deliverable volume to a selected outlet. MPI was applied to the basin of the Rio Gadria catchment (Venosta Valley, Bolzano, Italy), an alpine basin with an unlimited sediment supply that is characterized by multiple, very active, shallow landslides and bare soil zones. The proposed ranking method was successfully verified using post-event surveys and through evidence from consolidation check dams built over many years in the basin

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2014, vol. 39, no5 [pp. 656-668]

Bibliographic references : 2 p.

Collation : 7 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3518

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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