论文部分内容阅读
秦皇岛地区的旅游海滩大部分处于侵蚀状态,沿海河流入海沙量的减少是引起海滩侵蚀的主要原因。对比不同时期的海岸剖面资料,论述了侵蚀性海滩滩面变窄、滩砂粗化和滩面变陡等问题。在讨论海岸侵蚀与海滩侵蚀两个概念的区别和内在联系基础上,依据海滩的岸坡物质对秦皇岛地区侵蚀性海滩进行了分类。侵蚀性海滩的保护及恢复的关键问题是海滩发育空间及物源。最后,针对不同类型的侵蚀海滩,提出了具体防护措施。
Most of Qinhuangdao’s tourist beaches are in erosion. The decrease of sediment into the sea from coastal rivers is the main cause of beach erosion. By comparing the coastal profile data of different periods, the paper discusses the problems such as narrow beach surface, beach sand coarsening and steep beach surface in the eroded beach. On the basis of discussing the differences and internal relations between the two concepts of coastal erosion and beach erosion, we classified the eroded beach in Qinhuangdao according to the beach bank material. The key issue of the protection and recovery of the erosive beach is the space and source of beach development. Finally, for different types of beach erosion, put forward specific protective measures.