中国地处亚欧大陆东部,濒临太平洋,在其东部,由北而南有十四个省、直辖市、自治区濒临海洋,拥有一条长达18000多千米曲折而漫长的大陆海岸线,此外还有长达14000多千米的岛屿海岸线。就中国北部而言,沿海的辽宁、天津、河北、山东四省市,濒临渤海及黄海北部,海岸线北起今辽宁省丹东市的鸭绿江 China is located in the eastern part of Asia-Europe continent, on the verge of the Pacific Ocean. In its eastern part, there are 14 provinces, municipalities and autonomous regions bordering the oceans from north to south, possessing a winding and long continental coastline of more than 18,000 kilometers and long Over 14,000 kilometers of island coastline. In northern China, the four coastal provinces of Liaoning, Tianjin, Hebei and Shandong are on the verge of the Bohai Sea and the northern part of the Yellow Sea. The coastline runs north to the Yalu River in Dandong City, Liaoning Province