【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。近年来,全球气候异常,海平面上升、海水入侵的出现改变了岛陆岸线和岛滩的生态环境,同时也使高程较低的海岛面临存在的威胁。文章通过选取广西省具有代表性的海岛,研究了海岛海岸线的变迁与动态变化的成因,同时,对海岛岸线变迁作出了预测及影响分析。更多还原

【Abstract】 Sea islands with their resources are valuable in ecology and economics.They also play a significant role in the safeguard of the national oceanic rights and interests.In the recent years,the global climatic abnormalities,the sea level rising,and the sea water intrusions often change some island coastlines and ecological environments of island beaches and flats.Furthermore they might threaten the existences of some islands with lower altitudes above the sea level.A few typical islands are selected in order to study the formation causes of the island coastline displacements and dynamical variabilities.Finally the predictions and the effects of the island coasline displacements are presented.更多还原