Journal
MARINE ENVIRONMENTAL RESEARCH
Volume 131, Issue -, Pages 32-42Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2017.09.006
Keywords
Erosion; Saltmarsh; Spartina spp.; Eutrophication; Coastal defence; Coastal protection; Wave mesocosm; Coastal ecosystem services
Funding
- MARES Grant [EU-512002-1-2010-1-BE-EMJD]
- project TETRIS (PRIN, MIUR)
- Flemish Fund for Scientific Research [FWO-1.2.380.11.N.00]
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We investigated how lateral erosion control, measured by novel photogrammetry techniques, is modified by the presence of Spartina spp. vegetation, sediment grain size, and the nutrient status of salt marshes across 230 km of the Italian Northern Adriatic coastline. Spartina spp. vegetation reduced erosion across our study sites. The effect was more pronounced in sandy soils, where erosion was reduced by 80% compared to 17% in silty soils. Erosion resistance was also enhanced by Spartina spp. root biomass. In the absence of vegetation, erosion resistance was enhanced by silt content, with mean erosion 72% lower in silty vs. sandy soils. We found no relevant relationships with nutrient status, likely due to overall high nutrient concentrations and low C:N ratios across all sites. Our results contribute to quantifying coastal protection ecosystem services provided by salt marshes in both sandy and silty sediments. (C) 2017 Elsevier Ltd. All rights reserved.
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