科学家们预言，未来将是拓展海洋的世纪，海洋占地球面积的７１％，海洋生物占地球生物资源的８０％，它给人类更多的能源和蛋白质。到２１世纪将有１／１０的人口移居到海洋城市，今天，美国和日本已相继建立了海洋城。中国是一个拥有３２０００ｋｍ海岸线的濒海国家，而２０ Scientists predict that the future will be to expand the sea century, the ocean accounted for 71% of the Earth’s surface area, marine organisms accounted for 80% of the Earth’s biological resources, it gives humanity more energy and protein. By the 21st century, about one-tenth of the population will migrate to marine cities. Today, the United States and Japan have successively established Ocean City. China is a coastal country with 32,000 km coastline, while 20