Interactive effects of vegetation and sediment properties on erosion of salt marshes in the Northern Adriatic Sea

被引：46
|
作者：
Lo, V. B. [1 ,2 ,5 ]
Bourna, T. J. [3 ,4 ]
van Belzen, J. [3 ,4 ]
Van Colen, C. [5 ]
Airoldi, L. [1 ,2 ]
机构：
[1] Univ Bologna, Alma Mater Studiorum, Dept Biol Geol & Environm Sci BIGEA, Via S Alberto 163, I-48123 Ravenna, Italy
[2] UO CoNISMa, CIRSA, Via S Alberto 163, I-48123 Ravenna, Italy
[3] Royal Netherlands Inst Sea Res NIOZ, Dept Estuarine & Delta Syst, Korringaweg 7, NL-4401 NT Yerseke, Netherlands
[4] Univ Utrecht, POB 140, NL-4400 AC Yerseke, Netherlands
[5] Univ Ghent, Dept Biol, Marine Biol Res Grp, Campus Sterre S8,Krijgslaan 281, B-9000 Ghent, Belgium
来源：
MARINE ENVIRONMENTAL RESEARCH | 2017年 / 131卷
关键词：
Erosion; Saltmarsh; Spartina spp; Eutrophication; Coastal defence; Coastal protection; Wave mesocosm; Coastal ecosystem services; CLIMATE-CHANGE; COASTAL DEFENSE; EUTROPHICATION; COLLAPSE; LAGOON; VULNERABILITY; CONSEQUENCES; SALINITY; HABITATS; DYNAMICS;
D O I：
10.1016/j.marenvres.2017.09.006
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
引用
收藏
页码：32 / 42
页数：11
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