Spatio-temporal evolution and driving factors of high-quality marine economic development in China
High-quality development of the marine economy is a key task for accelerating the construction of a maritime power,so as to realize Chinese-style modernization.This paper defines the scientific connotation of marine economy and its high-quality development.Based on the three major systems of marine economy and the five new development concepts,this paper synthesizes the high-quality development index of marine economy by means of vertical and horizontal separation grade method and fixed-base efficiency coefficient method.Then,with the help of the method of Dagum Gini coefficient,Markov matrix,standard deviation ellipse and geographic detector,spatio-temporal evolution and driving factors of high-quality development in coastal areas are systematically discussed.The results show that:(1)The continuous improvement of the comprehensive level of high-quality marine economic development is due to the collaborative optimization of marine economic,social and environmental systems.Guangdong,Shandong,Shanghai,Jiangsu and Zhejiang are key regions leading the improvement of marine economic quality and efficiency.(2)The quality of marine economic development has obvious spatial and temporal differences.To be specific,there is a large gap within the southern blue economic circle,and the gap between the northern and eastern blue economic circles is also the most prominent.(3)The high-quality development of marine economy is moving forward in twists and turns.In terms of time,most provinces have the power to advance to a higher level,but the difficulty of transition is gradually increasing;In terms of space,the center of gravity of the marine economy's geographical pattern is always located in the Yangtze River Delta,forming a steady-state spatial structure of"one core and two wings".(4)The optimization of the quality of marine economy is the result of the joint action of the new development concept.After the introduction of the strategy of maritime power,innovation empowerment has replaced opening-up as the first driving force.In order to steadily promote the high-quality development of the marine economy at a higher level,it is necessary to implement the new development concept,which include give full play to the leading role of the blue economic zone,enhance the core competitiveness of the marine industry,build a free trade port with high standards,promote the cause of revitalizing the sea through science and education to cultivate new quality productive forces,deepen the construction of marine ecological civilization as well as clarify the key tasks of coastal areas.In this way,the sound operation of the marine economic,social and environmental systems tend to be promoted,completing the glorious mission of transforming to a maritime power.
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