Bhat Mahadev G
Department of Environmental Studies, Florida International University, University Park, Miami, FL 33199, USA.
J Environ Manage. 2003 Apr;67(4):315-25. doi: 10.1016/s0301-4797(02)00207-4.
The quality of the coral reefs in the Florida Keys is essential to sustain nature-based tourism in the Keys. The recently established marine reserves (MR) are expected to improve the reef environment, particularly coral and fish abundance and diversity. In this paper, a combined model of travel cost and contingent behavior was estimated in order to measure the non-market recreational benefits of reef quality improvements. The results indicated that an average visitor would undertake 43-80% more number of trips to the Florida Keys and experience a 69% increase in the use values per trip, as a result of the MR-induced reef quality improvements. The above non-market value estimates were further applied to evaluating alternative management proposals for funding the MR program. It was found that the annual management costs of the MR program would constitute an insignificant portion--only around one to 2%--of the annual recreational benefits that the MR would generate. The results provide a strong economic justification for designing user-based funding mechanisms in order to make the MR program self-sustaining in the future.
佛罗里达群岛珊瑚礁的质量对于维持该群岛基于自然的旅游业至关重要。最近设立的海洋保护区有望改善珊瑚礁环境,尤其是珊瑚和鱼类的数量及多样性。本文估计了旅行成本与或有行为的组合模型,以衡量珊瑚礁质量改善带来的非市场休闲效益。结果表明,由于海洋保护区带来的珊瑚礁质量改善,平均每位游客前往佛罗里达群岛的旅行次数将增加43%至80%,每次旅行的使用价值将增长69%。上述非市场价值估计进一步应用于评估为海洋保护区项目提供资金的替代管理方案。结果发现,海洋保护区项目的年度管理成本仅占该保护区每年产生的休闲效益的一小部分,仅约1%至2%。研究结果为设计基于用户的资金机制提供了有力的经济依据,以便使海洋保护区项目在未来实现自我维持。