Quantifying the benefits of wetland restoration under projected sea level rise

Familkhalili, Ramin; Davis, Jenny; Currin, Carolyn A.; Heppe, Madison E.; Cohen, Susan

doi:10.3389/fmars.2023.1187276

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Quantifying the benefits of wetland restoration under projected sea level rise

2023
By Familkhalili, Ramin ; Davis, Jenny ; Currin, Carolyn A. ; ...
Source: Frontiers in Marine Science, 10

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Journal Title:

Frontiers in Marine Science
Personal Author:

Familkhalili, Ramin ; Davis, Jenny ; Currin, Carolyn A. ; Heppe, Madison E. ; Cohen, Susan

Familkhalili, Ramin ; Davis, Jenny ; Currin, Carolyn A. ; Heppe, Madison E. ; Cohen, Susan Less -
NOAA Program & Office:

NCCOS (National Centers for Coastal Ocean Science) ; NOS (National Ocean Service)

NCCOS (National Centers for Coastal Ocean Science) ; NOS (National Ocean Service) Less -
Description:

The capacity of vegetated coastal habitats to mitigate erosion and build elevation in response to sea-level rise (SLR) has led to growing interest in their application as Nature Based Solutions (NBS) for shoreline protection. However, a significant uncertainty in the performance of NBS is how these features will respond to future rates of SLR. In this study, we applied the Sea Level Affecting Marshes Model (SLAMM) to a fringing shoreline wetland complex that is directly adjacent to the primary runway of a regional airport in coastal North Carolina, US. The SLAMM model was run at high spatial resolution (1 m cell size) to investigate the effects of projected SLR by 2100 on the wetland communities and to estimate the potential benefits of a proposed NBS project involving the use of dredged sediment to increase wetland surface elevation. Modeling future habitat extent under three SLR scenarios (i.e., intermediate, intermediate-high, and high) with no land modification reveals a consistent pattern of salt marsh expanding into fresh marsh, salt marsh transitioning to higher elevations, and substantially larger overall extents of intertidal and subtidal habitats within the project footprint at relatively high rates of SLR. Simulations that include the NBS indicate changes in the composition of wetland types over time compared with the no-action scenario. Model results help to better understand the long-term behavior of fringing coastal wetlands and the efficacy of their use as part of coastal resilience strategies.
Keywords:

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Aquatic Science Global And Planetary Change Ocean Engineering Oceanography Water Science And Technology
Source:

Frontiers in Marine Science, 10
DOI:

https://doi.org/10.3389/fmars.2023.1187276
ISSN:

2296-7745
Format:

PDF
Publisher:

Frontiers Media SA
Document Type:

Journal Article
Funding:

Grant no. NA20NOS4780192
License:

https://creativecommons.org/licenses/by/4.0/
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CC BY
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urn:sha-512:98a69b7d0eba03e403bf8d1713f5586a014e7f79bed381e9e1fe225271fa6cc97771d8e769b254a5a011031837f105eb7fa08ccd5063b946d5f2d0efde066957
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Quantifying the benefits of wetland restoration under projected sea level rise

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