The (Building) Stones of Venice under Threat: A Study about Their Deterioration between Climate Change and Land Subsidence

Gloria Zaccariello, Elena Tesser, Rebecca Piovesan and Fabrizio Antonelli ()
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Gloria Zaccariello: LAMA—Laboratory for Analysing Materials of Ancient Origin, Iuav University of Venice, San Polo 2468, 30125 Venezia, Italy
Elena Tesser: LAMA—Laboratory for Analysing Materials of Ancient Origin, Iuav University of Venice, San Polo 2468, 30125 Venezia, Italy
Rebecca Piovesan: LAMA—Laboratory for Analysing Materials of Ancient Origin, Iuav University of Venice, San Polo 2468, 30125 Venezia, Italy
Fabrizio Antonelli: LAMA—Laboratory for Analysing Materials of Ancient Origin, Iuav University of Venice, San Polo 2468, 30125 Venezia, Italy

Sustainability, 2024, vol. 16, issue 11, 1-20

Abstract: Cultural heritage assets face significant threats from climate change and land subsidence, leading to extensive social, economic, and environmental losses, and damage to artistic and monumental heritage in Italian coastal cities. In particular, addressing these challenges in the Venetian context necessitates the development of an adaptation plan for the lagoon area and the identification of targeted intervention strategies to preserve cultural and territorial heritage. To address these objectives, a systematic study was conducted to investigate the deterioration patterns exhibited by the most representative lithologies used in Venetian buildings. Thirty samples of five carbonate stone varieties subjected to natural aging were monitored in six different areas of Venice’s historic center and on Torcello Island, selected based on altimetry relative to tidal zero and exposure to environmental forces. An integrated multi-analytical approach was employed to identify and map macro- and micro-morphologies of stone surfaces related to chemical weathering and physical decay. Stones underwent evaluation during nine monitoring periods using various tests (ultrasound P-wave velocity and colorimetric measures) and analyses (µX-Ray Fluorescence, X-ray powder diffraction, stereomicroscope observations, and recognition of biological patinas). Data processing aimed to elucidate how microclimate and intrinsic stone features influence the occurrence and progression of deterioration phenomena. From the experimental findings, a Stone Deterioration Index and Intervention Procedures ( SDIi ) were proposed to estimate deterioration rates and assess the need for targeted intervention through conservative actions.

Keywords: cultural heritage; climate change; land subsidence; eustatism; high tide; Venice; stone materials; carbonate rocks; stone deterioration; weathering (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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