Cultural resources in coastal parks and recreation areas are vulnerable to climate change. The US National Park Service (NPS) is facing the challenge of insufficient budget allocations for both maintenance and climate adaptation of historic structures. Research on adaptation planning for cultural resources has predominately focused on vulnerability assessments of heritage sites; however, few studies integrate multiple factors (e.g., vulnerability, cultural significance, use potential, and costs) that managers should consider when making tradeoff decisions about which cultural resources to prioritize for adaptation. Moreover, heritage sites typically include multiple types of cultural resources, and researchers have yet to examine such complex tradeoffs. This study applies the Optimal Preservation (OptiPres) Model as a decision support framework to evaluate the tradeoffs of adaptation actions among multiple types of historic structures—wooden buildings, masonry and concrete buildings, forts, and batteries—under varying budget scenarios. Results suggest that the resource values of different types of historic structures vary greatly under a range of budget scenarios, and tradeoffs have to be made among different types of historical structures to achieve optimal planning objectives. Moreover, periodic, incremental funding and partial maintenance are identified as optimal funding strategies for preservation needs of cost-intensive historic structures. Also, adaptative use of historical buildings (e.g., building occupancy) can improve the resource values when budget are constrained. The OptiPres Model provides managers with a unique framework to inform adaptation planning efforts for a broad range of historic structures, which is transferable across coastal parks to enhance historic preservation planning under climate change.

沿海公园和休闲区的文化资源容易受到气候变化的影响。美国国家公园管理局 (NPS) 面临着历史建筑维护和气候适应预算分配不足的挑战。文化资源适应规划的研究主要集中在遗产地的脆弱性评估上；然而，很少有研究整合了管理者在做出关于哪些文化资源优先用于适应的权衡决策时应该考虑的多种因素（例如，脆弱性、文化意义、使用潜力和成本）。此外，遗产地通常包含多种类型的文化资源，研究人员尚未研究这种复杂的权衡。本研究应用最佳保护 (OptiPres) 模型作为决策支持框架，以评估多种类型的历史建筑（木制建筑、砖石和混凝土建筑、堡垒和电池）在不同预算情景下的适应行动权衡。结果表明，不同类型的历史建筑的资源价值在一系列预算情景下差异很大，必须在不同类型的历史建筑之间进行权衡以实现最佳规划目标。此外，定期、增量资金和部分维护被确定为满足成本密集型历史建筑保护需求的最佳资金策略。此外，当预算受限时，历史建筑的适应性使用（例如，建筑占用）可以提高资源价值。