中国海洋经济绿色发展水平测度及收敛性分析

Measurement and Convergence Analysis on Green Development Level of Marine Economy in China

海洋经济绿色发展是中国构建新发展格局、建设海洋强国的必然要求。在重新梳理海洋经济绿色发展内涵基础上,首先构建包括海洋经济效益、海洋资源利用、海洋生态环境、海洋创新能力、海洋社会效益和政府支持度六个子系统的海洋经济绿色发展水平评价指标体系,利用CRITIC-熵值组合权重的TOPSIS模型对2010—2020年中国11个沿海省份的海洋经济绿色发展水平进行测度;其次,采用Dagum基尼系数法、收敛模型分析了海洋经济绿色发展水平的区域差异和收敛特征。研究表明:海洋经济绿色发展水平以及六个子系统水平整体呈波动上升趋势;海洋经济绿色发展水平区域总体差异、区域内(间)差异均呈扩大态势,南海地区内部差异最大,北海和南海地区的区域间差异最为明显,超密度贡献率是其区域差异的主要来源;海洋经济绿色发展水平没有表现出σ收敛趋势,全国及三大沿海区域存在显著的绝对β收敛和条件β收敛,海洋产业结构对全国、北海、南海地区海洋经济绿色发展水平的增长率有显著促进作用。

Green development of marine economy is a necessity for China to construct a new development layout and build a maritime powerhouse.An evaluation index system for the level of green development of the marine economy is first constructed,which includes six subsystems:marine economic benefits,marine resource utilization,marine ecological environment,marine innovation capability,marine social benefits and government support.Firstly,the CRITIC-entropy combined weight TOPSIS model is used to measure the level of green development of the marine economy in 11 coastal provinces and cities in China from 2010 to 2020.Secondly,the Dagum Gini coefficient method and the convergence model are adopted to analyze the regional differences and convergence characteristics of green development level of the marine economy.The results show that,the overall green development level of the marine economy and the levels of the six subsystems are all fluctuating upward.The total regional difference,intra-regional(inter-regional)difference of the green development level of the marine economy are all expanding,with the greatest intra-regional difference in the South Sea area,the most noticeable inter-regional difference between the North Sea and the South China Sea areas,and the over-density contribution rate is the main source of its regional differences.There isn’tσconvergence trend in the green development level of the marine economy,but there is significant absoluteβconvergence and conditionalβconvergence in whole country and the three major coastal areas.The marine industry structure has a significant promoting effect on the growth rate of the green development level of the marine economy in the whole country,also the North Sea and the South China Sea areas.