| 基于遥感和GIS的长岛南五岛近30年海岸线时空变迁分析 |
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| 引用本文： | 康波,林宁,徐文斌,王娜,刘庆群.基于遥感和GIS的长岛南五岛近30年海岸线时空变迁分析[J].海洋通报,2017,36(5):585-593. |
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| 作者姓名： | 康波 林宁 徐文斌 王娜 刘庆群 |
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| 作者单位： | 上海海洋大学，上海201306,国家海洋信息中心，天津300171,国家海洋信息中心，天津300171,国家海洋信息中心，天津300171,国家海洋信息中心，天津300171 |
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| 摘 要： | 海岛不仅具有很高的资源、生态和经济价值,而且对维护国家海洋权益具有重大意义。本文基于遥感和GIS技术,利用1982、1995、2006和2015年的Landsat卫星遥感影像,分析了近30年来长岛南五岛海岸线的时空变化特征。结果表明:1982年以来,长岛南五岛近30年的海岸线长度增加了9.54 km,海岸线呈向海推进趋势,平均推进速度为0.54 m/a。海岸线变化主要受人为因素的影响,变化比较大的岸段主要分布在南长山岛和北长山岛的西部,以养殖开发、填海造陆与港口建设为主。研究认为,海岸线的变化,将会导致诸如岸线侵蚀等环境问题,应注意合理开发、利用海岸线资源。
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| 关 键 词： | 长岛南五岛 海岛 遥感 海岸线变迁分析 |
| 收稿时间： | 2015/9/17 0:00:00 |
| 修稿时间： | 2016/12/18 0:00:00 |
Spatial-temporal changes of the coastline in Five South Island of Long Island in recent three decades on RS and GIS |
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| Abstract: | Oceanic islands contain abundant resource which have great economical value and effectively sustain the ecosystem, and they also play a significant role in preserving marine right and interests of the country. In this paper, based on the technology of RS and GIS, using Landsat of 1982, 1995, 2006 and 2015, the spatial and temporal changes of the coastline in the past 30 years were analyzed. The results showed that the total length of the coastline had increased by 9.54 km in the past 30 years, and the coastline had the trend toward sea at the speed of 0.54 m/a. Coastline changes were mainly affected by human factors, which are mainly reflected in aquaculture reclamation, construction land use and port construction. Relatively large changes are mainly in the west of the South Long Island and North Long Island. These results implyed that the changes of the coastline might lead to a set of environment problems such as coastline erosion, and attention should be paid to the coastline development and reasonable coastal resources uses. |
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| Keywords: | Five South Island of Long Island island remote sensing analysis of coastline change |
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