Using the commitment model, this study examines the effects of satisfaction, alternative choices, and investment scale about the environment would predict users' environmental commitments. Furthermore, this study also investigated the relationship between the commitment to environment and the willingness to pay for the environmental conservation at the particular natural site. A survey was conducted at Yangmingshan National Park. The data were collected from April to July 2019. The findings of the analysis suggested that satisfaction and investment scale had the significantly positive effects on the commitment to the environment; but the alternative choices had the significantly negative relationship with the commitment. However, the level of environmental commitment failed to predict the willingness to pay via the entrance fee for environment conservation and protection. The level of commitment did not mediate the effects of satisfaction, alternative choices, and investment scale in the environment on the willingness to pay more for the national park, which will require refinement in future research.

使用承诺模型，本研究考察了满意度，替代选择以及有关环境的投资规模会预测用户的环境承诺的影响。此外，本研究还调查了对环境的承诺与特定自然保护区为环境保护付出的意愿之间的关系。在阳明山国家公园进行了一项调查。数据收集于2019年4月至2019年7月。分析结果表明，满意度和投资规模对环境承诺具有显着的积极影响。但是替代选择与承诺之间存在显着的负相关关系。然而，环境承诺的水平未能预测通过环境保护和保护费的入场费来支付的意愿。承诺水平并未调动满意度，替代选择和环境投资规模对为国家公园支付更多费用的意愿的影响，而这需要在未来的研究中进行完善。