In this study, we explored how a targeted land use change in a Danish catchment (River Odense) may provide multi-functional benefits through nitrogen (N)-load reductions to obtain good ecological quality in Odense estuary, protection of N-vulnerable groundwater aquifers, protection of Natura2000 sites and carbon sequestration. An N-load model linked to GIS thematic layers of known protected areas (Natura2000 sites and N-vulnerable groundwater aquifers) was utilised targeting high N-load areas to locate set-aside land. The achieved multi-functional benefits within the catchment and estuary were assessed and cost–benefit assessment was performed by dividing the total welfare costs of the set-aside by the total multi-functional benefits gained from each strategy. The results show that obtaining multi-functional benefits at the lowest cost requires a targeted shift of set-aside from the traditional hot-spot N-load areas to designated protected areas.

在这项研究中，我们探索了丹麦流域（欧登塞河）的目标土地利用变化如何通过减少氮（N）负荷来在欧登塞河口获得良好生态质量，保护易受伤害的地下水蓄水层的方式提供多功能益处。 ，Natura2000网站的保护和碳固存。利用与已知保护区（Natura2000站点和易受地下水侵蚀的含水层）的GIS专题层链接的N负荷模型，以高N负荷区域为目标来定位预留土地。对流域和河口内已实现的多功能收益进行评估，并通过将预留金的总福利成本除以每种策略所获得的多功能收益总额来进行成本效益评估。