The role of the sediment budget in understanding debris flow susceptibility

Auteur(s) et Affiliation(s)

DONG, J.-J.

Graduate Inst. of Applied Geology, National Central Univ., Taoyuan, Taiwan, Province de Chine

LEE, C.-T.

Graduate Inst. of Applied Geology, National Central Univ., Taoyuan, Taiwan, Province de Chine

TUNG, Y.-H.

Graduate Inst. of Applied Geology, National Central Univ., Taoyuan, Taiwan, Province de Chine

LIU, C.-N.

Civil Engineering Dep., National Chi-Nan Univ., Nantou, Taiwan, Province de Chine

LIN, K.-P.

Graduate Inst. of Applied Geology, National Central Univ., Taoyuan, Taiwan, Province de Chine

LEE, J.-F.

Central Geological Survey, Ministry of Aconomic Affairs, Taipei, Taiwan, Province de Chine

Description :
This study proposes a sediment-budget model to predict the temporal variation of debris volume stored in a debris-flow prone watershed. The AA. acquire a dataset of 44 potential debris-flow torrents (PDFTs) from the Tungshih area of central western Taiwan, where many shallow landslides and debris flows were triggered by the 1999 Chi-Chi earthquake and subsequent typhoons. This dataset is utilized to derive and to validate the susceptibility model. A susceptibility index, which reflects the possibility of debris flow occurrence in a PDFT, is then calculated based on the proposed susceptibility model.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2009, vol. 34, n°. 12, p. 1612-1624, nombre de pages : 13, Références bibliographiques : 2 p.

Date :
2009

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais