L'indice morphométrique de pente comme indicateur de l'évolution d'un paysage : Une approche multiéchelle

One of the main topics of the landscape evolution models is the hillslope-riv er relation studied by means of laboratory experim ents, numerical or physical modelling and field studies. In this paper, we discuss the previous studies of the Authors about the index MSI (Morphom etric Slope Index) with two m ain goals: To validate it as unique reference index for slope m orphom etry , and to give a unique model of the landscape evolution in some multi-scale drainage basins in Italy . Starting from reconstruction of the pre-erosion slope topography for three case studies at different scales, we perform a meta-Analy sis of the published data via bivariate statistics (correlation and regression) for detecting the influence of pre-erosion MSI on the characteristics of the drainage networks. Moreover, we introduce a new param eter for the characterization of the drainage networks.