在分析国内外相关研究的基础上，提出以海岛旅游地本底刚性生态足迹、海岛旅游地旅游刚性生态足迹、海岛旅游地生态承载力为生态足迹法评价海岛旅游地旅游生态安全的三大关键要素．根据海岛旅游地特点，建立这三者的数学模型，在此基础上，设计了海岛旅游地旅游生态安全系数与海岛旅游地旅游生态效率指数这两个评价海岛旅游生态安全指标，并确定了这两个指标不同状态下的临界值．据此，从两个维度对海岛旅游地旅游生态安全与可持续发展程度进行较为准确的度量．%Based on the analysis of the domestic and foreign researches, the paper puts forward three key elements to evaluate the island tourism ecological security by the method of ecological footprint, which are the rigid background ecological footprint of the tourist destination islands, the rigid tourism ecological footprint and the ecosystem carrying capacity, and based on the island characteristics, a mathematical model involving the three key elements is established, on the foundation of which a two ecological security indices ecological security index and ecological efficiency index is designed to evaluate island tourism ecological security, and the critical value of the two indices under different conditions is also worked out. Thereby, ac- curate measurement of the island's tourism ecological security and the sustainable development degree is made possible from the two dimensions.
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