1) 발표자: 심태용

2) 학술대회명: 2025 한국기후변화학회

3) 발표 주제: ELOHA-Based Waterfront Management with Civilian Collaboration

4) 발표 내용

The demand from citizens for ecologically healthy rivers and water-friendly spaces has been increasing. However, modifications to waterfronts often alter the hydrological regime, which can negatively affect aquatic biodiversity and reduce ecosystem services. Thus, an ELOHA (Ecological Limitations Of Hydrological Alteration)-based approach incorporating the living lab concept was proposed to support environmental (or ecological) flow decision-making. The ELOHA-based approach was applied to three streams in Suwon City. The ecohydrological relationships were derived using data from the Han River Basin, which included 34 hydrological indicators (IHA), where, 9 IHAs were selected based on the variance inflation factor. Occurrence data of 62 freshwater fish species were used. Six classification models and an ensemble model were applied to determine ecohydrological relationships for each species, and model performance was identified using true skill statistics. Ecological alteration was quantified using α- and β-diversity indices. Model performance was acceptable, showing high accuracy in internal validation using Han River data, though performance was relatively lower when applied to external data from Suwon. The ecohydrological relationships indicated that biodiversity risks are associated with hydrological alterations. Among the IHAs, July monthly flow was linked to the least ecological alteration, while high pulse events were associated with the greatest impact. Further studies including environmental variable selection, ecohydrological model enhancement, and strengthened citizen science collaboration will build on the proposed framework, which is expected to support waterfront management and stimulate collaboration among policymakers, scientists, and stakeholders.