The single-site travel cost model is a method typically used to estimate the recreational value of open-access natural areas. However, when utilised at sites where multiple ecosystem types are present, the proportion of value that is generated by each ecosystem can be unclear. Natural capital frameworks, such as the UN's System of Environmental-Economic Accounting, require values that are ecosystem specific. Therefore, recreational values from single-site travel cost models may be difficult to incorporate. In this study, we estimate the use value of a protected coastal site using a single-site travel cost model and demonstrate three approaches that could be employed to assign a proportion of the total use value to one of the key ecosystems at the site, a saltmarsh. The welfare estimate for the entire site is €4.1 million per year. The value that can be attributed to saltmarsh ranges from €280,154 to €1.7 million, depending on the approach used. We discuss the relevance of these approaches for different contexts, including natural capital accounting.

中文翻译：

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将利用价值纳入生态系统特定账户：盐沼在混合生态系统地点产生的娱乐价值


单站点旅行成本模型是一种通常用于估计开放自然区域的娱乐价值的方法。然而，当在存在多种生态系统类型的地点使用时，每个生态系统产生的价值比例可能不清楚。自然资本框架，例如联合国的环境经济核算系统，需要特定于生态系统的值。因此，来自单站点旅行成本模型的娱乐价值可能难以纳入。在这项研究中，我们使用单地点旅行成本模型估计沿海保护区的使用价值，并展示了三种可用于将总使用价值的一部分分配给该地点的关键生态系统之一盐沼的方法。整个工厂的福利估计为每年 410 万欧元。盐沼的价值从 280,154 欧元到 170 万欧元不等，具体取决于所使用的方法。我们讨论了这些方法在不同情况下的相关性，包括自然资本会计。