基于遥感和GIS相结合的广西海岸线时空变化特征分析  

Analyses on spatial and temporal changes of Guangxi shoreline based on remote sensing and GIS

作　　者：黄鹄[1] 胡自宁[2] 陈新庚[1] 沈健全 

机构地区：[1]中山大学环境科学研究所,广东广州510275 [2]广西遥感中心,广西南宁530023

出　　处：《热带海洋学报》2006年第1期66-70,共5页Journal of Tropical Oceanography

基　　金：广西科学基金项目(0448039)

摘　　要：利用不同时段的遥感影像、数字化地形图和历史航空相片,在地理信息系统平台上获取广西海岸线的时空变化资料,并对其进行分析。结果表明:(1)近50年来,广西海岸线总的长度减小,在1955—1998年期间岸线长度呈递减趋势;(2)岸线由曲折向平直化演变,其中围垦段的岸线相对平直;(3)风流岭江南岸及企沙东面鹿墩岛海岸的自然侵蚀幅度不大,岸线变形较小。Spatial and temporal data of the change of Guangxi shoreline were obtained and analyzed on the platform of geographical information system （GIS） by using satellite remote sensing images, digital topog raphy maps and historical airplane photos in different periods of time. The results showed that： （1） the length of Guangxi shoreline has generally decreased in late 50 years, especially during between 1955 and 1998;（2）the shoreline is developing from zigzag to straight, especially the inning shoreline;（3） the shoreline to the south of the Fengliuling River and the shoreline around Ludun Island to the east of Qisha have been eroded slightly, the shoreline has changed less.

关 键 词：岸线 时空变化 广西 遥感 GIS 

分 类 号：P737.1[天文地球—海洋地质]