Abstract
High-quality development is an innovative way to promote the sustainable development of the marine economy. This study uses China’s coastal areas as an example, constructing a research framework for the high-quality development of the country’s marine economy. The temporal and spatial variation in the high-quality development of China’s marine economy from 2006 to 2016 is explored utilizing the nuclear density estimation, entropy, and mean standard deviation classification methods. The results show the following: (1) the policy orientation of China’s high-quality marine economic development is obvious, and the focus of policy has changed from the pursuit of growth speed to growth quality; (2) a spatiotemporal differentiation is evident, with the coastal areas of the Yangtze River Delta continuing to be the hotspots of high-quality development. The Bohai rim and Pan Pearl River Delta areas feature a mixture of cold and hot spots, with multipolar spatial differentiation; (3) in terms of development stage, Guangdong, Shanghai, Shandong, Zhejiang, and Tianjin are at advanced levels. The intermediate-level areas consist of Fujian, Jiangsu, Hainan, and Liaoning, while Hebei and Guangxi are the primary-level areas.
Highlights
By the end of the 20th century, many Nobel Prize winners had reached a consensus on the top ten problems facing humanity in the half century: energy, water, food, environment, poverty, terrorism and war, disease, education, democracy, and population [1]
Characteristics of Temporal Evolution. e entropy method was used to calculate the score for the high-quality development of the marine economy, and the temporal variation of the development was investigated using the Kernel density estimation (KDE) (Figure 3(a))
In terms of the shape of the kernel, the KDE waveform showed a multimodal distribution. e kernel density distribution corresponding to the peak of the curve in 2006 was scattered; the difference in scores between regions was relatively small. e kernel density distribution corresponding to the peak of the curve in 2016 was relatively concentrated, and the gap in the quality of marine economics between regions widened
Summary
By the end of the 20th century, many Nobel Prize winners had reached a consensus on the top ten problems facing humanity in the half century: energy, water, food, environment, poverty, terrorism and war, disease, education, democracy, and population [1]. E negative effects of the external environment, such as shrinking demand and diminishing demographic dividend, have forced the development of the marine economy, under the constraint of a structural slowdown crisis, to shift to the long-term perspective in terms of speed, structure, and power changes in time and space, so as to achieve sustainable growth and improve human welfare [24] It aims to optimize the structure of marine industries, promote marine social welfare, and enhance the marine ecological environment based on the improvement of the comprehensive strength of the marine economy [8, 22, 25]. E high-quality development of China’s marine economy mainly relies on guidance from the national macroeconomic marine policy and the supplementary promotion of local targeted maritime laws and regulations. e release of coastal policies has changed over time from a brief and scattered pattern to a systematic and intensive pattern, while the focus of the policies has shifted from the growth rate to the quality of marine economic development (Figure 1)
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