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<p>Wetlands play a key role in hydrological regulation and flood risk reduction; however, their attenuation capacity depends not only on biophysical characteristics but also on sociocultural dynamics influencing their use and management. This study proposes and applies the Integrated Wetland Flood Risk Attenuation Index (IARH) to assess the flood risk attenuation capacity of wetlands from a socio-ecological perspective. The methodological framework was developed through a multicriteria approach integrating biophysical and sociocultural parameters operationalized through quantifiable indicators. Parameter weights were estimated using the Analytic Hierarchy Process (AHP), while indicators were normalized and aggregated into biophysical and sociocultural components. An exploratory pilot application was conducted in the Zapatosa Wetland Complex (Colombia) using secondary environmental and territorial information. Results indicate that storage volume, hydrological connectivity, and functional wetland area are the main biophysical determinants of flood regulation, whereas land occupation and socioeconomic dependence on wetland ecosystem services are the most influential sociocultural factors. The pilot application yielded an intermediate-high attenuation capacity (IARH = 0.661), with moderate stability under alternative weighting scenarios. The proposed IARH provides a replicable socio-ecological assessment framework that may support ecosystem-based risk management, wetland conservation, and territorial planning processes. Nevertheless, further empirical validation and field-based calibration are recommended to strengthen its applicability across different wetland contexts.</p>

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Integrated index for quantifying flood risk attenuation capacity in wetlands

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Laura Gisella Gómez Sotelo,
  • Gloria Yaneth Flórez Yepes

摘要

Wetlands play a key role in hydrological regulation and flood risk reduction; however, their attenuation capacity depends not only on biophysical characteristics but also on sociocultural dynamics influencing their use and management. This study proposes and applies the Integrated Wetland Flood Risk Attenuation Index (IARH) to assess the flood risk attenuation capacity of wetlands from a socio-ecological perspective. The methodological framework was developed through a multicriteria approach integrating biophysical and sociocultural parameters operationalized through quantifiable indicators. Parameter weights were estimated using the Analytic Hierarchy Process (AHP), while indicators were normalized and aggregated into biophysical and sociocultural components. An exploratory pilot application was conducted in the Zapatosa Wetland Complex (Colombia) using secondary environmental and territorial information. Results indicate that storage volume, hydrological connectivity, and functional wetland area are the main biophysical determinants of flood regulation, whereas land occupation and socioeconomic dependence on wetland ecosystem services are the most influential sociocultural factors. The pilot application yielded an intermediate-high attenuation capacity (IARH = 0.661), with moderate stability under alternative weighting scenarios. The proposed IARH provides a replicable socio-ecological assessment framework that may support ecosystem-based risk management, wetland conservation, and territorial planning processes. Nevertheless, further empirical validation and field-based calibration are recommended to strengthen its applicability across different wetland contexts.