海南龙沐湾砂质海岸变化与生态环境研究

摘要

The article firstly uses remote sensing technology for the extraction of sandy coastline to determines the remote sensing interpretation indication and interpretation method of sandy coastline,and accomplishes the remote sensing interpretation work of sandy coastline of Longmu Bay.It finally suggests the new thought of improving especially big high-tide line extracted by TM image to average high-tide line used data measured from field beach.The result shows that we can develop overlay analysis using coastline extracted from TM image and coastline from terrain maps,and get coastline change characters of Longmu Bay since 1937,to provide foundation for the local to choose appropriate coastal section for construction and eco-environmental modification,Meanwhile for coastal environmental protection and protection management provide basic research.%文章先利用遥感技术进行砂质海岸线提取,确定了砂质海岸线的遥感解译标志和解译方法,完成了龙沐湾砂质海岸线遥感信息解译工作,最后提出将TM影像提取的特大高潮线利用野外海滩测量数据改进到平均大潮高潮位线的新思路.这样利用TM影像提取的岸线可以和地形图的海岸线叠加分析,得到海南龙沐湾1937年近百年以来海岸线变化的特征,为选择哪个岸段进行海岸建设、生态环境修复等提供重要科学依据,也对区域海岸环境保护和防护管理提供一定的基础研究.