In the context of climate change, a significant increase in the flood risk is expected, which may lead to an intensification of the social impacts of disasters. Social impacts significantly affect the recovery processes of individuals, social groups, and institutions in the medium and long term. Hence, the management of such impacts throughout the disaster life cycle is essential. International institutions and frameworks for disaster risk reduction have claimed the need to generate tools for the systematic assessment and management of social impacts of floods. Recently, an innovative line of research has emerged aimed at adapting social impact assessment (SIA), usually directed at the evaluation of planned interventions (programs, plans and projects), to the field of environmental disasters. In order to contribute to academic efforts in this emerging field, this paper puts forward, through a systematic literature review based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria, an SIA methodological proposal for the identification, assessment and systematic management of the social impacts of flood events. This methodological proposal covers the three phases of the disaster cycle: (1) pre-event (preparedness), allowing the anticipation of potential impacts and supporting the proposal of preventive measures; (2) event (response), facilitating a strategic mobilization of resources and technical support towards previously identified critical disaster areas; and (3) post-event (recovery), evaluating the evolutionary dynamics of impacts, proposing measures to avoid their socio-territorial embedding and accelerating recovery processes. This tool is designed for strategic use by policy makers and managers responsible for flood risk management and regional development.

This article presents a systematic review of sustainable watershed management at the international level. Based on the risk regulation approach, this review approaches the specific gaps in the literature related to relevant issues outlining the international freshwater resources socio-environmental regulation issue, especially in regards to its sociological dimensions: the organizational capabilities of agents involved in regulatory efforts, issue-implicit challenges, and regulatory effort-generated socio-environmental risks. The study identifies the reflexive components of the involved institutions, outlines the deployment of organizational processes in normative regulatory components, and explores the modalities for addressing change and complexity in the regulatory field. A corpus of 64 articles published in the Web of Science (WoS) and Scopus databases between 2021 and 2024 was analyzed, and the following findings are demonstrated: (1) regulatory requirements emerge across the three dimensions due to sociological factors, with the need for broad-ranging coordination capacities and socio-technical improvements highlighted, (2) while high political–technical capacities are exhibited by regulatory agents in the field of study, significant regulatory challenges persist, complicating the sustainable management of watersheds, and (3) decision-making based on socio-environmental risks is deemed feasible within the field of study, enabling advancements in techno-scientific and socio-political areas, although achieving this is considered challenging. It is concluded that sustainable watershed management can be better understood when the risk-based approach is used as an explanatory framework, particularly in priority areas for addressing—and regulating—the global and local dilemmas involved in governing water resources. As this field has been scarcely examined from this perspective, a series of potential research avenues with substantial scope are faced by the social sciences. Socio-environmental challenges related to water should be rigorously analyzed in future studies through innovative approaches, with the social components of the issue prioritized.

The mainstream approach of social vulnerability to flood risk faces some challenges regarding its ability to address the complexity of its causal processes. The objective of this study was to analyse the causal processes of social vulnerability to flood impacts from a relational perspective. To this end, a social network analysis was performed that identified the conditions and causes of social vulnerability and systematically articulated the relationships between them. This analysis was tested on the specific case of flood risk on the coast of the province of Alicante (SE Spain). To ascertain the conditions and causes of social vulnerability to flood risk, a multidisciplinary group of local experts was consulted, and the resulting data processed in a relational way using Atlas.ti and Gephi softwares. The result was a social vulnerability network comprising 84 nodes and 189 edges distributed into four dimensions: the adaptive capacity of tourists, socio-economic structure, land use planning and risk management. The information was ranked for betweenness centrality, revealing the components with highest causal power of social vulnerability to social impacts in flooding events: low flood risk awareness, economic growth based on real estate boom, property speculation and lack of political interest in flood risk management. This proposal places emphasis on the driving forces of social vulnerability and not exclusively on the specific adaptive conditions of the population, which allows a strategic identification and management of generative forces that ultimately induce the social impacts of floods.