文献类型：期刊文献

英文题名：Interannual Variations in Headland-Bay Beach Profiles and Sediment Under Artificial Island Influence: A Case Study of Puqian Bay, Hainan Island, China

作者：Wang, Xuan[1,2];Li, Zhiqiang[1];Sun, Yan[1,2];Bian, Xiaodong[2];Zhu, Daoheng[1]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Chem & Environm, Zhanjiang 524088, Peoples R China

年份：2025

卷号：13

期号：10

外文期刊名：JOURNAL OF MARINE SCIENCE AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001601911400001)、、Scopus(收录号：2-s2.0-105020008690)、WOS

基金：This work was supported by the National Natural Science Foundation of China [42176167]; the Guangdong Basic and Applied Basic Research Foundation [2024A1515011427].

语种：英文

外文关键词：artificial island; EOF; sediment grain size; headland-bay beach

外文摘要：Beaches are important geomorphic units shaped by land-sea interactions. Changes in their profiles and surface sediments are directly influenced by both natural processes and human activities. This study is based on continuous topographic and sediment monitoring from 2021 to 2023 on the open and sheltered beaches of Puqian Bay, Hainan Island. It investigates the interannual profile evolution and the spatiotemporal response of sediment grain size under the influence of an artificial island. The results show that the Guilinyang Beach profile is mainly characterized by seasonal erosion-accretion cycles and the seaward migration of sandbars, while the Hilton Beach profile has undergone long-term erosion. At Hilton, sediment grain size changes are strongly coupled with profile erosion and accretion. Seasonal waves drive spatial differences in both profile and grain-size variation across Puqian Bay. The artificial island has reshaped local alongshore sediment transport and wave energy distribution. This has led to continuous erosion and coarsening in the open sector, while the sheltered sector remains morphologically stable. These findings reveal the spatiotemporal response patterns of headland-bay beaches under both natural and anthropogenic forcing, and provide scientific evidence for understanding coastal sediment dynamics and the impacts of artificial structures.