Dredging works in the Polish open sea ports as an anthropogenic factor of development of sea coastal zones

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Dredging works in the Polish open sea ports as an anthropogenic factor of development of sea coastal zones

Journal Title: Biuletyn Instytutu Morskiego - Year 2016, Vol 31, Issue 1

Abstract

Dredging works in ports and fairways lead to the extraction of large quantities of dredged material, which must be “disposed of.” This indirectly results in interference in the coastal zone. From the point of view of impact on the marine environment, among the most important activities is deposition of dredged material: at sea dumping sites and on artificially nourished seashores. The annual average volume of dredged material extracted as a result of deepening of the Polish open sea ports located on the southern coast of the Baltic Sea is calculated at 0.61 million m3 (years 1948–2015). Out of this volume, less than 69% of the dredged material (from 25 to 80% per year) was applied in shore infilling, and the rest was deposited at sea. This is unsatisfactory. To ensure an effective system of shore protection it is required to increase the volume of sediments intended for artificial shore nourishment, and to reduce the amount of sediment relocated to sea dumping sites, in favour of its practical applications.<br/><br/>

Authors and Affiliations

Marta Staniszewska, Helena Boniecka, Hanna Cylkowska

Keywords

dredged material sea coastal zone artificial nourishment of shores

EP ID EP186843
DOI 10.5604/12307424.1223959
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