Comprehensive Evaluation of Environmental Dimension Reduction of Multi-Type Islands: A Sustainable Development Perspective

Abstract In recent years, the exploration and sustainable development of islands is getting more and more attention around the world. However, the development of China's islands is somewhat disorder and spatial unbalanced. Therefore, we need to conduct a scientific assessment of the islands in order to fully understand the islands. In this paper, We analyze the possible development path of the islands by evaluating the value of the islands. To be specific, we present an extensive evaluate model design based on analysis of the environmental resources conditions, economic values, and existing problems of the seven typical islands in China. This model is applied to evaluate the sustainability levels and development advantages of seven typical islands. The island’s evaluation results are consistent with the island’s actual development level, which proves that the model is believable. Generally, the more indicators involved in the evaluation model, the more accurate the evaluation result will be. However, numerous indicators will cause two problems. One is that some indicators are highly correlated and make the evaluation results inaccurate. Therefore, it is necessary to remove redundant indicators; the other is that the calculation process will be cumbersome. In this study, we used factor analysis to solve the problems, making the evaluation results more accurate. Meantime, the experiment has proved that the model can simultaneously use multiple types of islands as samples for unified evaluation.