李晓敏,马毅,张杰,吕喜玺.基于高分遥感的西沙群岛典型海岛时空变化分析[J].海洋通报,2020,(6):
基于高分遥感的西沙群岛典型海岛时空变化分析
Spatial and temporal dynamics of typical islands in the Xisha Islands using high-resolution satellite images
投稿时间:2020-09-02  修订日期:2020-10-04
DOI:10.11840/j.issn.1001-6392.2020.06.009
中文关键词:  西沙群岛  海岛变化  高分遥感  三沙市
英文关键词:Xisha Islands  island change  high-resolution remote sensing  the city of Sansha
基金项目:国家自然科学基金(51839002)
作者单位E-mail
李晓敏 内蒙古大学 生态与环境学院内蒙古 呼和浩特 010021自然资源部第一海洋研究所山东 青岛 266061 lixiaomin@fio.org.cn 
马毅 自然资源部第一海洋研究所山东 青岛 266061  
张杰 自然资源部第一海洋研究所山东 青岛 266061中国石油大学 (华东) 海洋与空间信息学院山东 青岛 266580  
吕喜玺 内蒙古大学 生态与环境学院内蒙古 呼和浩特 010021  
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中文摘要:
      高分辨率卫星遥感技术已成为有效监测海岛动态变化的主要手段。本文以西沙群岛社区驻地海岛、领海基点所在海岛和自然保护区所在海岛为研究对象,利用 2005 年以来的高分辨率卫星遥感影像,分析了各类海岛的时空变化情况。结果表明:社区驻地海岛变化普遍较大,特别是永兴岛、赵述岛、筐仔沙洲和银屿,主要都是由于吹沙填岛和岛上开发利用活动日益增多造成的,变化主要发生在 2012 年三沙市成立之后;领海基点所在海岛和自然保护区所在海岛相对较稳定,岛上地形、地貌及植被等基本保持原有的自然状态,变化区域主要分布在各个海岛的端头,主要是由自然因素导致的。海滩岩对海岛起到了极大的保护作用,海滩岩发育好的海岛基本保持稳定状态,而没有海滩岩发育或海滩岩被破坏的海岛则变化较大。
英文摘要:
      High-resolution satellite remote sensing has become an effective method to monitor the spatial and temporal dynamics of islands. Using high-resolution satellite images since 2005, this paper analyzed the spatial and temporal changes of the islands where Xisha Islands communities, territorial sea base points and natural reserves are located. The results show that: community resident islands have changed significantly, especially Yongxing Island, Zhaoshu Island, Kuangzaishazhou and Yinyu. These changes were mainly caused by the island-filling activities and the increasing development and utilization activities on the islands, and mainly occurred after the establishment of Sansha city in 2012. The islands where territorial sea base points and natural reserves are located are relatively stable, and the topography, landform and vegetation of the islands are basically kept as the original natural state. Most of the changes were distributed at the end of each island, mainly caused by natural factors. The beach rocks play a great role in protecting the islands. The islands with well-developed beach rocks basically maintain a stable state, while islands without beach rocks or with damaged beach rocks change greatly.
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