ISPRA, Italian National Institute for Environmental Protection and Research, Via di Castel Romano 100, 00128, Rome, Italy.
ISPRA, Italian National Institute for Environmental Protection and Research, Via Vitaliano Brancati 60, 00144, Rome, Italy.
Mar Environ Res. 2019 Feb;144:186-193. doi: 10.1016/j.marenvres.2018.12.006. Epub 2018 Dec 22.
Nowadays nourishment is the most popular shore reconstruction strategy to counteract erosion of coastal areas. Sediments used for nourishment can have terrestrial or marine origin. This study analysed the effects of nourishment with relict sand on the subtidal macrobenthic communities and on the surface sediment at 7 sites of the Marche Region (Central Adriatic Sea, Italy). Samples for biological and physical analyses were collected in each site before and after nourishment. One year after nourishment the presence of the relict sands used for the replenishment is still visible in the sediment of each site. In the same period macrobenthic communities are characterised by the dominance of a few species able to avoid burial and suffocation phenomena, showing a low variability respect to the communities present before.
如今，营养物是最受欢迎的海岸修复策略，用以抵抗沿海地区的侵蚀。用于营养物的沉积物可能来自陆地或海洋。本研究分析了在意大利亚得里亚海中部马尔凯地区的 7 个地点，利用残余沙进行营养物补充对潮间带大型底栖动物群落和表层沉积物的影响。在每个地点进行营养物补充前后，都采集了用于生物和物理分析的样本。在营养物补充一年后，每个地点的沉积物中仍能看到用于补充的残余沙的存在。在同一时期，大型底栖动物群落的特征是少数几种能够避免埋栖和窒息现象的优势种占主导地位，与补充前存在的群落相比，其变异性较低。
