Journal
OCEAN & COASTAL MANAGEMENT
Volume 126, Issue -, Pages 51-60Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ocecoaman.2016.03.013
Keywords
Beaches; Tourism; Sand colour; Beach nourishment; CIEL*a*b*
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Funding
- Department of Earth Science of the University of Florence
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The colour of 93 beaches in Cuba was assessed in CIEL*a*b* colour space. Study sites comprised exposed and sheltered mainland beaches and keys. Notwithstanding the limited extension of this country, beaches show real colour variability due to mineralogical differences in rock outcrops in the various watersheds, the proximity of the coral reef and the shell fragments originated in open coast or mangrove areas. PCA performed on the L*, a* and b* parameters allowed beach groupings which fitted with their geographical locations and identified those altered by beach nourishment. Sand lightness was considered by taking into account visitor's preferences, addressed to very clear sand, which is infrequent in mainland Cuba. One strongly coloured beach was found, for which a geosite institution is proposed. The impact of beach nourishment on native sand colour was studied and the beach at Varadero, probably the most popular Cuban beach, was negatively impacted by this activity. Reconstruction was necessary after severe erosion induced by Sea Level Rise and hurricanes. Recommendations for wise beach nourishment in tropical areas are given. (C) 2016 Elsevier Ltd. All rights reserved.
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