Mountain forests are an efficient Forest-based Solution (FbS) for Ecosystem-based Disaster Risk Reduction (Eco-DRR) by lowering the frequency, magnitude, and/or intensity of natural hazards. Technical protection measures are often poor solutions as stand-alone measures to reduce disaster risk limited by material wear and fatigue or financial resources and aesthetical values. Protective forests should therefore be considered as key elements in integrated risk management strategies. However, the definition of protective forests and the understanding and assessment of their protective functions and effects differ greatly among Alpine Space countries. In this chapter, we present a short introduction to the concept of Eco-DRR and companion terms and propose a definition of FbS as a specific case of Nature-based Solutions for an ecosystem-based and integrated risk management of natural hazards. That is, we guide the reader through the maze of existing definitions and concepts and try to disentangle their meanings. Furthermore, we present an introduction to forest regulations in the Alpine Space and European protective forest management guidelines. Our considerations and recommendations can help strengthen the role of protective forests as FbS in Eco-DRR and the acknowledgment of the key protective function they have and the crucial protective effects they provide in mountain areas.

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Mountainous areas are expected to face increasing societal pressure due to mass tourism and the rising intensity and frequency of natural hazards triggered by climate change. Therefore, the development of proper strategies for the management of environmental risks will be crucial to ensure their liveability. Against this backdrop, concepts such as territorial resilience and Social–Ecological Systems (SES) can support the prioritisation of protective efforts. This paper presents a conceptual framework to be applied to areas subject to natural hazards. Its aim is to support the integration of different measures, with a special focus on protection forests and other Nature-based Solutions, into current risk management strategies. The framework considers (i) the definition of SES boundaries; (ii) the identification of the main goals to be achieved; (iii) the quantification of the supply and demand of the ecosystem protection service; and (iv) the development of risk management strategies able to include the management of protection forests among the adopted solutions. This framework is intended as a tool to be adopted by local and regional decision-makers as a tool to identify the areas at risk, to recognise the potential role of protection forests, and to operationalise the concept of resilience through the deployment of “grey-green” strategies.

Risks have always shaped the way society has grown and evolved. Consequently, the risk concept has been studied and applied by different disciplines such as natural sciences as well as by economic, engineering, health, and insurance sectors. However, its definition and application are heterogenous and often vary among research communities. This chapter introduces the concept of risk and provides an overview of definitions and interpretations by key policy actors, including associated terms such as hazard, exposure, and vulnerability. Its use and the general importance of “risk” in the Alpine Space are emphasized, especially in the light of the increasing impacts of socioeconomic, environmental, and climatic changes on natural hazard risk by discussing resulting consequences and challenges. Furthermore, we provide an overview of the main policy actors, organizations and networks that address integrated natural hazard risk management in the Alpine Space.