Abstract
This paper constructs a comprehensive benefit evaluation index system for sea area utilization, and applies the statistical data of Liaoning Province in 2000, 2005, 2010 and 2015. The entropy weight method is used to calculate the index weight, and the comprehensive benefit evaluation index and coordination index are used. Sea area utilization com pre hensive benefit evaluation. The results showed that the comprehensive benefits of sea area utilization in Liaoning Province ranged from 0.31 to 0.66. The increase in overall efficiency is mainly due to the substantial increase in economic and social benef its. The coordination degree index presents extremely inconsistent coordination - coordination - a highly coordinated - basic coordination process. While the economic and social benefits are improving, the benefits of the ecological environment are gradu ally declining, and the downward trend has not yet been contained and should be taken seriously.
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