Subsidence due to peat oxidation and impact on drainage infrastructures in a farmland catchment south of the Venice Lagoon |
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| Authors: | G Gambolati M Putti P Teatini G Gasparetto Stori |
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| Institution: | (1) Department of Mathematical Methods and Models for Scientific Applications, University of Padova, Via Belzoni 7, 35131 Padova, Italy;(2) Consorzio di Bonifica Adige-Bacchiglione, Via dell’Industria 3, 35026 Conselve (Padova), Italy |
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| Abstract: | Large agricultural areas reclaimed in the past century, south of the Venice Lagoon, have experienced significant land subsidence
due to oxidation of peat organic soils. This has exposed the region to flood hazard particularly during severe storms and
has contributed to increase the marginal management cost of the infrastructures (ditches, levees, pumping stations) designed
to operate the drainage system. Direct measurements and indirect evidence from the channel network suggest a land settlement
between 1.5 and 2 m over the past 70 years. This paper provides an overview of the problem with important information on its
most recent evolution. |
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| Keywords: | Land subsidence Peat oxidation Drainage infrastructures Venice Lagoon catchment |
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