Comprehensive audit evaluation and driving force analysis of various types of marine resources development

An accurate grasp on the comprehensive benefits and key impact factors of various types of marine resources development can facilitate the rational selection of marine resources development types. It has a certain reference value for the timely adjustment of marine development countermeasures and development direction. In this paper, the Delphi method, entropy weight method and rough set theory are combined for progressive screening, and an evaluation index system of marine resources development is constructed. Principal component analysis (PCA) is used to analyze the driving force of marine resources development. We found that eight indicators in the four element layers of economic cost, resource benefit, resource cost and ecological environment benefit are the key factors influencing the development and utilization of marine resources. Linear weighted sum (LWS) model is used to measure the comprehensive index of five types of marine resources development. We found that the order from high to low is land reclamation 0.3883, sewage dumping 0.3613, marine protected areas 0.2927, offshore wind power 0.2885 and mariculture 0.2729. The priorities in marine resources development in Jiangsu Province are defined. Our analysis suggests the need to improve the comprehensive benefits of marine resources development and utilization by improving the efficiency of marine space development and utilization, developing the value of marine tourism resources, responding to the sensitivity of marine ecological environment in a timely manner, and increasing the fees for the use of sea areas and the prevention and control of marine environmental pollution.