Abstract

The historical variations in landslide activity are investigated in the Rocchetta S. Antonioterritory, where sown fields cover 75% of the total area. The perception of the inhabitants is thatlandsliding has increased in recent years, and climate change has been invoked as a case. However,since 1865 annual precipitation has decreased c. 8% per century in southeastern Italy and local rainfalldata for the 1955-2008 period show high inter-annual variability with statistically uncertain trends. In thesame decades human alterations to the local environment were considerable. To demonstrate theimpacts of land-use changes, detailed landslide and land-use maps spanning the 1976-2006 periodhave been constructed and the spatial-temporal changes in the context of the local precipitationpatterns have been analysed. It is shown that the frequency of landsliding in 2006 was 160% higherthan in 1976, even though both years were comparably wet. The sown fields increased by 46% from1976 to 2006, and the landslide density was 55% higher on the new sown fields; that is, those cultivatedafter 1976. Thus, the higher susceptibility to landsliding is linked to the land-use changes and especiallyto the new ploughing for EU-sponsored wheat cultivation that has taken place on the steeper slopes.

Autore Pugliese

• Casarano Domenico , Wasowski Janusz

Tutti gli autori

• Wasowski J.; Lamanna C.; Casarano D.

Titolo volume/Rivista

Quarterly journal of engineering geology and hydrogeology

Anno di pubblicazione

2010

ISSN

1470-9236

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile