As a treasure house of resources and strategic space to maintain economic and social development, the ocean will play an increasingly important role in the economic map of China. At the same time, "the uncoordinated and unsustainable problems in the development of marine economy are still outstanding." Recently, Wang Hong, deputy director of the State Oceanic Administration, pointed out at a forum that with the improvement of infrastructure, good conditions have been created for the marine economy to accelerate technological transformation, open up market space and realize transformation and upgrading. However, at present, the extensive growth characteristics of China's marine economy are still outstanding, and the problems of isomorphism, convergence of layout and low quality of marine industry are obvious.

"Taking the Bohai Rim region as an example, Caofeidian, Tangshan, Hebei Province will build a new-type industrial zone with steel and petrochemical industry as the mainstay, Huanghua Port will build a large-scale petrochemical base, Bayuquan, Yingkou, Liaoning Province will build a new-type steel base, Panjin will build a large-scale petrochemical base, and Tianjin Binhai Chemical Industry Zone and Lingang Industrial Zone will also accelerate the construction of petrochemical and steel bases." A person from the Regional Economic Department of the National Development and Reform Commission said that if this development continues, redundant construction and vicious competition are inevitable.

However, due to the lag in the transformation of scientific and technological achievements and other factors, although the growth rate of China's emerging marine industry is obvious in recent years, the scale is still small. In 20 10, the added value of marine high-tech industries such as marine biomedicine, seawater utilization and marine power only accounted for 0.7% of the total marine production.

"The contribution rate of marine economic and technological progress in developed countries and regions is about 80%, while that in China is only 30%." Du Ying, deputy director of the National Development and Reform Commission, said in the first half of this year that the lack of support for marine science and technology and the low conversion rate of scientific and technological achievements show that China's marine economy is still in an extensive stage compared with developed countries.

He believes that the small proportion of high-tech industries in the marine industry and the fact that enterprises have not yet formed the main position of technological innovation are related to the current imperfect technology transformation and service platform. In addition, the shortage of talents in marine high-tech industries and high-end talents in key fields and frontier fields are also important factors restricting the level of marine scientific research.

At the same time, the coordinated development of coastal (port) industry and marine ecological environment can not be ignored. Related to the above-mentioned industrial homogenization phenomenon, with the implementation of the regional development plan for coastal areas in recent years, the trend of China's heavy chemical projects gathering in coastal areas has obviously accelerated, and industries such as transportation, equipment manufacturing, raw material processing, heavy chemical industry, power industry and steel have blossomed everywhere, and the occupation of coastline and sea resources has also deepened.

Statistics show that the land reclamation area in China is expanding at an average annual rate of 36.4%. Moreover, the way of land reclamation is still in the primary stage, and the coastal development is obviously in an excessive state. The area that does not meet the water quality standard of clean sea area has exceeded 1/3 of the coastal waters, and the health status of typical coastal marine ecosystems continues to deteriorate, and the loss or change of typical ecological environments such as bays, estuaries and coastal wetlands is becoming more and more serious.