长江河口海洋自然灾害初探

A Preliminary Study on Marine Disasters in the Yangtze River Estuary

依据文献资料和统计数据,分析探讨了长江河口的海洋自然灾害,在此基础上,提出相应对策措施.结果表明,长江河口海洋自然灾害主要有海平面上升、风暴潮增多、咸水入侵加剧、沿江环境污染严重等.造成海洋自然灾害频发的主要原因是全球变暖.全球变暖导致海平面上升,从而引起风暴潮、海岸侵蚀、咸水入侵等海洋灾害数量的增加和强度的增大.长江河口的防灾减灾是一项社会减灾系统工程,需要各部门、多行业的共同协作.

According to related literature and statistic data, marine disasters in the Yangtze River Estuary are described, based on which some countermeasures are brought forward. The rise of sea level, the increasing occurrence of storm tide, the aggravation of saline intrusion and serious environmental pollution along the river are four major types of marine disasters. It is further pointed out that global warming, which would directly lead to the ascending of sea level, is mainly responsible for the high frequency of these marine disasters in the study area. It should be stressed that disaster prevention and damage mitigation be treated as a giant, systematic social engineering, which needs very close cooperation of multiple governmental sections and far-ranging industries.