Using visual erosion features to validate the application of water erosion models in Mediterranean karst environments : the case study of Lebanon

Pure and applied karst geomorphology

Auteur(s) et Affiliation(s)

BOU KHEIR, R.

Fac. of Letters and Human Sciences, Dep. of Geography, GIS Research Lab., Univ., Fanar, Liban

ABDALLAH, C.

Dep. of Agroecology and Environment, Fac. of Agricultural Sciences, Aarhus Univ, Tjele, Danemark

DALGAARD, T.

National Council for Scientific Research, Remote Sensing Center, Beyrouth, Liban

GREVE, M.H.

National Council for Scientific Research, Remote Sensing Center, Beyrouth, Liban

DE WAELE, J.

Dep. of Earth Sciences and Environmental Geology, Italian Inst. of Speleology, Univ., Bologna, Italie

FILIPPONI, M.

Swiss Federal Inst of Technology (EPFL), Lausanne, Suisse

GUTIÉRREZ, F.

Dep. of Earth Sciences, Univ., Zaragoza, Espagne

PARISE, M.

National Research Council - Inst. of Research for the Hydrogeological Protection, Italie

PLAN, L.

Natural History Museum, Karst and Cave, Vienna, Autriche

Description :
This paper focuses on identifying visual erosion features (i.e. exposed roots, earth pillars, soil drift and etching, linear channels) which are part of internally defined spatial landscape units (erosion proxies), whose internal characteristics influence the occurrence of soil erosion, and whose spatial content enables their analysis by remote sensing and GIS. The detected erosion features are useful for measuring and predicting soil erosion processes (sheet, mass and linear), with the least possible constraints related to input data of existing GIS regional models. Their efficiency is tested in this study through the validation of the available 1:100,000 water erosion risk maps in Lebanon as a case study of Mediterranean karst environments.

Type de document :
Article de monographie

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2010, vol. 54, n°. 2, Special issue, p. 27-49, nombre de pages : 23, Références bibliographiques : 3 p.

Date :
2010

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais