Rainfall triggering soil slips in the southern Apuan Alps (Tuscany, Italy)

摘要

The Apuan Alps are characterized by frequent heavy rainfall. In severalcases this triggered many shallow landslides (soil slips). With the aim ofcontributing to the landslide hazard evaluation of the southern Apuan Alps(upper Versilian area), a detailed analysis of the main pluviometric eventswas carried out. Data recorded at the main raingauge of the area from 1975to 2002 were analysed and compared with the occurrence of soil slips, inorder to examine the relationship between soil slip initiation and rainfall.Some thresholds for soil slip-debris flow activity in terms of meanintensity, duration and mean annual precipitation (MAP) were defined for thestudy area.