This study traces coastal sand dune development processes in East Asia during the Holocene to understand climate and environmental changes. We used optically stimulated luminescence (OSL) dating to examine periods of activation and stabilization of dunes along the western coast of the Korean Peninsula. The results from the Taean Chollipo, Seocheon Dasari, and Gochang Sabanri dunes were then compared with those from previous studies to establish a broad understanding of coastal dune development in this region. Sedimentation rates were calculated for the three dunes, and their development periods were classified through statistical analysis that included data from previous studies. We defined five main periods of late Holocene dune development (<0.1 ka, 0.2–0.5 ka, 1.2–2.0 ka, 2.5–3.2 ka, and 5.5–6.5 ka). These correlated to periods of sea level decrease and global cooling determined by ice rafted debris records. We concluded that the development of coastal dunes in western Korea was influenced by sea level decreases, and global cooling events were enhanced by the East Asian winter monsoon. In addition, human activity increases also contributed to the development of the dunes. This study showed how coastal sand dunes can be evaluated as important indicators of global climate change. These results improved our understanding of how paleoclimate changes affected environmental conditions in East Asia and how coastal dune development periods can be used to reconstruct paleo-environmental conditions.

这项研究追踪了全新世期间东亚沿海沙丘的发展过程，以了解气候和环境变化。我们使用光学激发发光（OSL）测年技术来检查朝鲜半岛西海岸沙丘的激活和稳定期。然后将Taean Chollipo，Seocheon Dasari和Gochang Sabanri沙丘的结果与以前的研究结果进行比较，以建立对该地区沿海沙丘发展的广泛了解。计算了三个沙丘的沉积率，并通过统计分析对它们的发育期进行了分类，其中包括先前研究的数据。我们定义了全新世沙丘发育的五个主要时期（<0.1 ka，0.2-0.5 ka，1.2-2.0 ka，2.5-3.2 ka和5.5-6.5 ka）。这些与海平面下降时期和由冰筏残骸记录确定的全球降温有关。我们得出的结论是，朝鲜西部沿海沙丘的发展受到海平面下降的影响，而全球制冷事件由于东亚冬季风而增强。此外，人类活动的增加也促进了沙丘的发展。这项研究表明，如何将沿海沙丘评估为全球气候变化的重要指标。这些结果增进了我们对古气候变化如何影响东亚环境条件以及如何利用沿海沙丘发育时期重建古环境条件的理解。我们得出的结论是，朝鲜西部沿海沙丘的发展受到海平面下降的影响，而全球制冷事件由于东亚冬季风而增强。此外，人类活动的增加也促进了沙丘的发展。这项研究表明，如何将沿海沙丘作为全球气候变化的重要指标进行评估。这些结果增进了我们对古气候变化如何影响东亚环境条件以及如何利用沿海沙丘发育时期重建古环境条件的理解。我们得出的结论是，朝鲜西部沿海沙丘的发展受到海平面下降的影响，而全球制冷事件由于东亚冬季风而增强。此外，人类活动的增加也促进了沙丘的发展。这项研究表明，如何将沿海沙丘评估为全球气候变化的重要指标。这些结果增进了我们对古气候变化如何影响东亚环境条件以及如何利用沿海沙丘发育时期重建古环境条件的理解。这项研究表明，如何将沿海沙丘评估为全球气候变化的重要指标。这些结果使我们更加了解古气候变化如何影响东亚的环境条件，以及如何利用沿海沙丘发育时期来重建古环境条件。这项研究表明，如何将沿海沙丘评估为全球气候变化的重要指标。这些结果增进了我们对古气候变化如何影响东亚环境条件以及如何利用沿海沙丘发育时期重建古环境条件的理解。