Land subsidence and degradation of the Venice littoral zone, Italy

Carbognin, Laura and Marabini, Francesco and Tosi, Luigi (1995) Land subsidence and degradation of the Venice littoral zone, Italy. In: Land Subsidence: by Fluid Withdrawal, by Solid Extraction, Theory and Modelling, Environmental Effects and Remedial. Series of Proceedings and Reports (Red Books ) , 234 . International Association of Hydrological Sciences (IAHS Press), Wallingford, Oxfordshire, OX10 8BB, UK, pp. 391-402. ISBN 0-947571-74-4

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Abstract

The Venetian lagoon coastline is constituted by a narrow strip of land, the wholeness of which is vital for the existence of the historical city of Venice and the lagoon itself. Two processes have threatened the littoral zone: the erosive action of the sea and the land subsidence. Because of its particular setting, the fretful state of the littoral zone, is revealed by the negative evolution of the near-shore bottom slope. Five bathymetric surveys carried out in 1954, 1968, 1982, 1988 and 1992 are compared and the phenomenon of land subsidence is then analysed. Although the latter is not the primary cause of the increase in the bottom slope that has occurred, a certain correlation exists between the two processes. One may say that even a few centimetres of ground surface lowering may actually contribute to the destabilization of the littoral zone. Defence works are being undertaken.

Item Type: Book Section
Additional Information: Keynote lecture. - Proceedings of the Fifth International Symposium on Land Subsidence, held at The Hague, The Netherlands, 16-20 October 1995.
Uncontrolled Keywords: Land subsidence, littoral, erosion, leveling, bathymetric surveys, Venice, Italy
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia
Depositing User: Dr Luigi Tosi
Date Deposited: 13 Nov 2014 12:49
Last Modified: 13 Nov 2014 12:49
URI: http://eprints.bice.rm.cnr.it/id/eprint/10073

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