环北部湾海洋经济圈发展研究

随着海洋世纪潮的全球涌动,实施海洋经济开发已成为中国经济和社会发展的重要战略取向。而横跨中越两国边境的北部湾海洋经济区,是中国西南地区出行东盟国家的必经通道,具有重要的国际合作开发价值,所以已经纳入海洋区域开发和西部大开发的国家战略安排。为此,考察北部湾海洋经济区的基本结构,依托自身优势打造北部湾海洋经济圈;发挥区域内核心城市的引擎功能,促进北部湾海洋经济区协调发展;充分利用海洋资源禀赋,依据西部大开发政策打造环北部湾海洋经济圈,使之成长为中国与东盟的区域性物流基地、跨国境商贸基地、现代制造业基地和国际信息交流中心,应当从研讨课题推进到合作开发实践。     

Archaeological indicators for sea level change and coastal neotectonic deformation: the submerged Roman fish tanks of the gulf of Matala, Crete, Greece

Due to the direct relationship between their function and ancient sea levels, Roman fish tanks and fish traps are excellent indicators for sea level changes through time. For this study, eleven submerged systems of fish tanks were investigated along the rocky southern coast of the gulf of Matala, Crete. Seven of them are still in a good state of preservation and thus underwent detailed survey and documentation. The measurements of their recent submersion, the determination of the way they operated, as well as their correlation with coastal landforms indicative of an older sea level, permit the identification of a mean Roman sea level at the SW coast of central Crete 1.25 m below the present one. According to historical evidence, the submersion of the SW coasts of the central part of Crete must have been occurred between 1415 and 1865 during a paroxysmal tectonic event and is probably related with the strong earthquake of 1604.