关键词: 海洋资源, 开发利用, 综合效益, 生态位态势理论, 多边形综合指标法, 地区差异

Abstract: The advantages and disadvantages of marine resources utilization can be foundthrough regional differences evaluation, which can be provided as the basis of taking measures to improve comprehensive benefits of marine resources utilization. Eleven coastal provinces of China are studied. Fifteen indices dividedinto 3 groups (economic benefits, social benefits and environmental enefits) are selected to build an index systemfor marine resources utilization evaluation. Based on niche ecostate-ecorole theory, the niche breadths of each province are calculated to represent the different benefits of marine resources utilization. Applying polygon synthesis indicator method for the integrated index calculation, regional differences of the 11 coastal provinces are evaluated for marine resources utilization benefits analysis. The results indicate that regional differences of marine resources utilization benefits are distinct amongthe 11 coastal provinces in China; the predominant provinces in marine resources utilization are Shanghai, Guangdong, and Tianjin, whose resources utilization is more effectivethan other provinces; the integrated indices of comprehensive benefits of the 11 coastal provinces are low as a whole, which indicates that there are great needs to improve the utilization benefits of marine resources; enhancing resources utilization efficiency and resisting marine hazards are the common needs for most coastal provinces.

Key words: marine resources, development and utilization, comprehensive benefits, niche ecostate-ecorole theory, polygon synthesis indicator method, regional differences