| 基于高分遥感的西沙群岛典型海岛时空变化分析 |
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| 引用本文： | 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,2020,39(6):717-729. |
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| 作者姓名： | 李晓敏 马毅 张杰 吕喜玺 |
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| 作者单位： | 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;自然资源部第一海洋研究所,山东青岛266061;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;内蒙古大学生态与环境学院,内蒙古呼和浩特010021 |
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| 基金项目： | 国家自然科学基金（51839002） |
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| 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。
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| 关 键 词： | 西沙群岛 海岛变化 高分遥感 三沙市 |
| 收稿时间： | 2020/9/2 0:00:00 |
| 修稿时间： | 2020/10/4 0:00:00 |
Spatial and temporal dynamics of typical islands in the Xisha Islands using high-resolution satellite images |
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| LI Xiaomin,MA Yi,ZHANG Jie,LYU Xixi.Spatial and temporal dynamics of typical islands in the Xisha Islands using high-resolution satellite images[J].Marine Science Bulletin,2020,39(6):717-729. |
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| Authors: | LI Xiaomin MA Yi ZHANG Jie LYU Xixi |
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| Institution: | School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China; First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;College of Oceanography and Space Informatics, China University of Petroleum, Qingdao 266580, China |
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| Abstract: | 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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| Keywords: | Xisha Islands island change high-resolution remote sensing the city of Sansha |
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