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首页> 外文期刊>Geosciences >The Impact of Sea Shore Protection on Aeolian Processes Using the Example of the Beach in Rowy, N Poland
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The Impact of Sea Shore Protection on Aeolian Processes Using the Example of the Beach in Rowy, N Poland

机译：波兰北部罗维海滩保护海岸对风沙过程的影响

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摘要

The Polish Baltic Sea coast is subject to constant changes as a result of sea erosion on sandy and clayey sections. Sand accumulates only on a few sandy sections of the shore. There are various methods of protection limiting the negative impact of sea waves on the shore. In the city of Rowy, the coast was secured with the use of a comprehensive method (artificial reef, textile tube, spurs, and beach nourishment), which has mitigated the sea’s negative impact. The beach has been widened. The upper part of the beach has been built up to the level of the foredune. Biotechnical protection has not been applied at the border between the beach and the foredune (fascine hurdles from brushwood, sand fences, and branches). This has caused wind blowing of sand from the beach to the forest growing on the foredune. The sand also covered the access road to holiday resorts. This was favored by the strong wind from the sea. Several morphological surveys were carried out, including topographic surveys and sedimentological samplings. The range of sand coverage and types of forms (aeolian shadows and drifts) were determined. Fifty eight samples of sand from various sources were collected for sedimentological analysis. Speed and directions of winds that occurred in 2001–2018 were also analyzed. Three wind speed criteria were distinguished: ≥4 m·s ?1 , ≥10 m·s ?1 , and ≥15 m·s ?1 , responsible for blowing away and transporting material. Results indicate that reconstruction of the beach to the height of the foredune, lack of biotechnical protection, and strong, coastal directions of the wind were the main factors responsible for increased aeolian transport of sand inland. Effects of aeolian processes such as those observed on the beach in Rowy were not observed elsewhere on the Polish coast of the South Baltic Sea, where beach nourishment was also performed.
机译：波兰波罗的海沿岸由于沙质和黏土部分的海蚀而不断变化。沙子仅堆积在海岸的一些沙质区域上。有多种保护方法，可限制海浪对海岸的负面影响。在罗维市，海岸采用了综合方法（人工礁石，纺织管，马刺和海滩养料）来确保安全，从而减轻了海洋的负面影响。海滩已经扩大。海滩的上部已经建成，达到了前陆的水平。尚未在海滩和山口之间的边界处采用生物技术保护措施（草丛，沙栅栏和树枝引起的鱼腥味障碍）。这引起了沙子从海滩吹到长滩上生长的森林的风。沙子还覆盖了通往度假胜地的通道。海上的强风使它受到青睐。进行了几种形态学调查，包括地形调查和沉积学采样。确定了沙子覆盖范围和形式类型（风影和漂流）。收集了来自各种来源的58份砂土样品用于沉积学分析。还分析了2001–2018年发生的风速和风向。区分了三个风速标准：≥4 m·s？1，≥10 m·s？1和≥15m·s？1，它们负责吹走和运输物料。结果表明，将海滩重建到前脚掌的高度，缺乏生物技术保护以及强劲的沿海风向是造成内陆风沙运输增加的主要因素。风浪过程的影响，例如在罗维海滩上观察到的过程，在波罗的海南部波兰海岸的其他地方也未观察到，那里也进行了海滩养护。

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