Research on the comprehensive benefits and driving forces of various typical types of marine development in Jiangsu Province

Abstract

The comprehensive benefit assessment of marine development type is an important basis for marine development according to local conditions. It is of great significance to realize the rationality of marine development and promote the sustainable development of the ocean. This paper calculates the economic net benefit, ecosystem service function loss value, fishery resource loss value and ecological profit and loss value of four main types of marine development projects in Jiangsu Province. The evaluation, correlation and driving force analysis of the comprehensive benefit value per unit area of marine development type are carried out. It is found that the sequence of economic net benefit and comprehensive benefit value is the same, from the highest to the lowest, they are port industry, offshore wind power, sewage dumping and aquaculture. After deducting the economic benefit value, the comprehensive benefit value is in the order of offshore wind power, aquaculture, port industry, sewage dumping, and the evaluation value is very close. Economic net benefit, ecosystem service function loss value and comprehensive benefit value have the most significant correlation. Through principal component analysis, it is found that economic net benefit is the key driving factor.