Mangroves shelter coastal economic activity from cyclones

Jacob Hochard, Stuart Hamilton and Edward Barbier
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Stuart Hamilton: Department of Geography and Geosciences, Salisbury University, Salisbury, MD 21801

Proceedings of the National Academy of Sciences, 2019, vol. 116, issue 25, 12232-12237

Abstract: Mangroves shelter coastlines during hazardous storm events with coastal communities experiencing mangrove deforestation are increasingly vulnerable to economic damages resulting from cyclones. To date, the benefits of mangroves in terms of protecting coastal areas have been estimated only through individual case studies of specific regions or countries. Using spatially referenced data and statistical methods, we track from 2000 to 2012 the impact of cyclones on economic activity in coastal regions inhabited by nearly 2,000 tropical and subtropical communities across 23 major mangrove-holding countries. We use nighttime luminosity to represent temporal trends in coastal economic activity and find that direct cyclone exposure typically results in permanent loss of 5.4–6.7 mo for a community with an average mangrove extent (6.3 m per meter of coastline); whereas, a community with more extensive mangroves (25.6 m per meter of coastline) experiences a loss equivalent to 2.6–5.5 mo. These results suggest that mangrove restoration efforts for protective benefits may be more cost effective, and mangrove deforestation more damaging, than previously thought.

Keywords: ecosystem services; global spatial analysis; mangroves; natural disaster; storm protection (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:nas:journl:v:116:y:2019:p:12232-12237

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