Abstract
Abstract. To achieve a more sustainable management of the subsiding Dutch peatlands, adaptations such as progressively higher surface water levels, pressurized field drains and a transition from dairy farming to paludiculture are considered. However, a clear understanding of implementation pathways for adaptive management strategies is lacking. Therefore, we used the RE:PEAT tool to elucidate the short-term and long-term impacts during 2025–2100 of two adaptive management strategies in Polder Zegveld and how to fairly distribute the costs and benefits of these strategies among the stakeholder groups. The strategies resulted in marked differences in soil subsidence and temporal trends in societal costs and benefits that affected stakeholders unequally. The adaptations were shown to reduce soil subsidence and enhance the sustainability of peatland management. We explored several options for a collective implementation of the adaptative management strategies. In addition, we discuss several ideas to further capitalize on the potential of the RE:PEAT tool to support peatland management. Currently, we are developing additional features that enable high spatio-temporal resolution simulations of the integrated dynamics of the surface water system, the shallow groundwater system, rainfall-runoff processes and solute transport. In combination with the PCDitch model, this will also enable detailed ecological assessments. This will pave the way for implementation pathways for adaptive management strategies that will contribute to a more sustainable peatland management.
Highlights
Unsustainable human exploitation has resulted in the degradation of peatlands worldwide (Joosten and Clarke, 2002)
The Dutch peatlands are a prime example of drained peatlands which are faced with multiple long-term problems and the challenge of implementing a more sustainable management
The RE:PEAT tool is embedded in the Tygron Geodesign Platform (TGP), an interactive software platform for 3D modelling of spatial development projects
Summary
Unsustainable human exploitation has resulted in the degradation of peatlands worldwide (Joosten and Clarke, 2002). To arrest and reverse the unsustainable exploitation of peatlands, management strategies must address the complex interrelations between their biophysical dynamics and their socio-economic context. The Dutch peatlands are a prime example of drained peatlands which are faced with multiple long-term problems and the challenge of implementing a more sustainable management. In response to this complex challenge, experimental collaborate adaptive management strategies are increasingly put into practice. The building blocks for these experiments reflect wetter conditions which can preserve the peat, such as (a) increasingly higher surface water levels, (b) novel applications of field drains, and (c) a transition in land use from dairy farming to paludiculture, i.e., the cultivation of species
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