Flood protection is considered one of the crucial regulating ecosystem services due to climate change and extreme weather events. As an ecosystem service, it combines the results of hydrological and ecosystem research and their implementation into land management and/or planning processes including several formally separated economic sectors. As managerial and economic interests often diverge, successful decision-making requires a common denominator in form of monetary valuation of competing trade-offs. In this paper, a methodical approach based on the monetary value of the ecosystem service provided by the ecosystem corresponding to its actual share in flood regulating processes and the value of the property protected by this service was developed and demonstrated based on an example of a medium size mountain basin (290 ha). Hydrological modelling methods (SWAT, HEC-RAS) were applied for assessing the extent of floods with different rainfalls and land uses. The rainfall threshold value that would cause flooding with the current land use but that would be safely drained if the basin was covered completely by forest was estimated. The cost of the flood protection ecosystem service was assessed by the method of non-market monetary value for estimating avoided damage costs of endangered infrastructure and calculated both for the current and hypothetical land use. The results identify areas that are crucial for water retention and that deserve greater attention in management. In addition, the monetary valuation of flood protection provided by the current but also by hypothetical land uses enables competent and well-formulated decision-making processes.

中文翻译：

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基于水文模型和避免损失成本的防洪生态系统服务货币价值评估。斯洛伐克ČiernyHron流域的一个例子

由于气候变化和极端天气事件，防洪被认为是关键的调节生态系统服务之一。作为一种生态系统服务，它将水文和生态系统研究的结果及其实施结合到土地管理和/或规划过程中，包括几个正式分离的经济部门。由于管理和经济利益经常存在分歧，因此成功的决策需要以竞争性取舍的货币估值形式为基础。本文以媒介为例，开发并论证了一种基于生态系统所提供的生态系统服务的货币价值（与其在洪水调节过程中的实际份额相对应）和该服务所保护的财产价值的方法。山区盆地（290公顷）。水文模拟方法（SWAT，HEC-RAS）用于评估不同降雨和土地利用的洪水程度。估计会导致当前土地利用泛滥的降雨阈值，但是如果流域被森林完全覆盖，则可以安全地排放该阈值。防洪生态系统服务的成本通过非市场货币价值的方法进行评估，以估算濒危基础设施避免的破坏成本，并针对当前和假设的土地使用进行计算。结果确定了对于保水至关重要并且在管理中应引起更多重视的领域。此外，当前的以及假设的土地用途所提供的洪水防护的货币价值，可以使主管的决策过程更加合理。HEC-RAS）被用于评估不同降雨和土地利用的洪水程度。估计会导致当前土地利用泛滥的降雨阈值，但是如果流域被森林完全覆盖，则可以安全地排放该阈值。防洪生态系统服务的成本通过非市场货币价值的方法进行评估，以估算濒危基础设施避免的破坏成本，并针对当前和假设的土地使用进行计算。结果确定了对于保水至关重要并且在管理中应引起更多重视的领域。此外，当前的以及假设的土地用途所提供的洪水防护的货币价值，可以使主管的决策过程更加合理。HEC-RAS）被用于评估不同降雨和土地利用的洪水程度。估计会导致当前土地利用泛滥的降雨阈值，但是如果流域被森林完全覆盖，则可以安全地排放该阈值。防洪生态系统服务的成本通过非市场货币价值的方法进行评估，以估算濒危基础设施避免的破坏成本，并针对当前和假设的土地使用进行计算。结果确定了对于保水至关重要并且在管理中应引起更多重视的领域。此外，当前的以及假设的土地用途所提供的洪水防护的货币价值，可以使主管的决策过程更加合理。