Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards

Coral reefs are effective natural coastal flood barriers that protect adjacent communities. Coral degradation compromises the coastal protection value of reefs while also reducing their other ecosystem services, making them a target for restoration. Here we provide a physics-based evaluation of how...

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Main Authors: Floortje E. Roelvink, Curt D. Storlazzi, Ap R. van Dongeren, Stuart G. Pearson
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-05-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2021.653945/full
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spelling doaj-7292440a42854c0fbe3cd4e668b69b5b2021-05-10T07:52:15ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452021-05-01810.3389/fmars.2021.653945653945Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding HazardsFloortje E. Roelvink0Curt D. Storlazzi1Ap R. van Dongeren2Ap R. van Dongeren3Stuart G. Pearson4Stuart G. Pearson5Deltares, Delft, NetherlandsUnited States Geological Survey, Santa Cruz, CA, United StatesDeltares, Delft, NetherlandsIHE Delft Institute for Water Education, Delft, NetherlandsDeltares, Delft, NetherlandsFaculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, NetherlandsCoral reefs are effective natural coastal flood barriers that protect adjacent communities. Coral degradation compromises the coastal protection value of reefs while also reducing their other ecosystem services, making them a target for restoration. Here we provide a physics-based evaluation of how coral restoration can reduce coastal flooding for various types of reefs. Wave-driven flooding reduction is greatest for broader, shallower restorations on the upper fore reef and between the middle of the reef flat and the shoreline than for deeper locations on the fore reef or at the reef crest. These results indicate that to increase the coastal hazard risk reduction potential of reef restoration, more physically robust species of coral need to be outplanted to shallower, more energetic locations than more fragile, faster-growing species primarily being grown in coral nurseries. The optimization and quantification of coral reef restoration efforts to reduce coastal flooding may open hazard risk reduction funding for conservation purposes.https://www.frontiersin.org/articles/10.3389/fmars.2021.653945/fullcoral reefswave runupecosystem servicescoastal protectionreef degradationreef restoration
collection DOAJ
language English
format Article
sources DOAJ
author Floortje E. Roelvink
Curt D. Storlazzi
Ap R. van Dongeren
Ap R. van Dongeren
Stuart G. Pearson
Stuart G. Pearson
spellingShingle Floortje E. Roelvink
Curt D. Storlazzi
Ap R. van Dongeren
Ap R. van Dongeren
Stuart G. Pearson
Stuart G. Pearson
Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
Frontiers in Marine Science
coral reefs
wave runup
ecosystem services
coastal protection
reef degradation
reef restoration
author_facet Floortje E. Roelvink
Curt D. Storlazzi
Ap R. van Dongeren
Ap R. van Dongeren
Stuart G. Pearson
Stuart G. Pearson
author_sort Floortje E. Roelvink
title Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
title_short Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
title_full Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
title_fullStr Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
title_full_unstemmed Coral Reef Restorations Can Be Optimized to Reduce Coastal Flooding Hazards
title_sort coral reef restorations can be optimized to reduce coastal flooding hazards
publisher Frontiers Media S.A.
series Frontiers in Marine Science
issn 2296-7745
publishDate 2021-05-01
description Coral reefs are effective natural coastal flood barriers that protect adjacent communities. Coral degradation compromises the coastal protection value of reefs while also reducing their other ecosystem services, making them a target for restoration. Here we provide a physics-based evaluation of how coral restoration can reduce coastal flooding for various types of reefs. Wave-driven flooding reduction is greatest for broader, shallower restorations on the upper fore reef and between the middle of the reef flat and the shoreline than for deeper locations on the fore reef or at the reef crest. These results indicate that to increase the coastal hazard risk reduction potential of reef restoration, more physically robust species of coral need to be outplanted to shallower, more energetic locations than more fragile, faster-growing species primarily being grown in coral nurseries. The optimization and quantification of coral reef restoration efforts to reduce coastal flooding may open hazard risk reduction funding for conservation purposes.
topic coral reefs
wave runup
ecosystem services
coastal protection
reef degradation
reef restoration
url https://www.frontiersin.org/articles/10.3389/fmars.2021.653945/full
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