一、引言我国东南部濒临西太平洋的黄海、东海、南海海域,从辽宁省鸭绿江口到广西北仑河口,海岸线长约18000km,沿海地区(除台湾、香港外)从北到南包括辽、冀、津、鲁、苏、沪、浙、闽、粤、桂、琼等十二省、市、自治区。这一地区土地面积约为全国的15%,但人口将近占全国的一半,工农业总产值约 I. INTRODUCTION The coast of the Yellow Sea, East China Sea and South China Sea in the southeastern part of China bordering the Western Pacific extends from the Yalu River estuary in Liaoning Province to the Beilun estuary in Guangxi Province. The coastline is about 18,000 km long. From the north to the south, the coastal areas (excluding Taiwan and Hong Kong) Tianjin, Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Guangdong, Guangxi, Joan and other 12 provinces, municipalities and autonomous regions. The land area in this area is about 15% of the country’s population, but its population accounts for nearly half of the country’s total output value of agriculture and industry