Integrated Hydraulic Modelling, Water Quality Modelling and Habitat Assessment for Sustainable Water Management: A Case Study of the Anyang-Cheon Stream, Korea

Recent ecological stream restoration projects have focused on expanding the water-friendly space of streams, promoting health aquatic ecosystems, and restoring various habitats, which raise need for relevant research. Applying integrated environmental analysis, this study quantifies change in hydraulic characteristics before after through physical habitat simulation links results impacts to estimate benefits increase water quality ecosystem due implementation project. For this, area is a 3.3 km long reach Anyang-cheon Stream, Korea. Field monitoring revealed that five fish species are dominant sub-dominant, account 76% total community. To assess project, River2D Coastal Modelling System (CMS)-Flow 2D models were used simulations, respectively. simulation, HSI (Habitat Suitability Index) model was used. In addition, Canadian Council Ministers Environment Water Quality Index (CCME WQI) calculate changes index examine areas with an quantitative index, methodology Zingraff-Hamed et al. adopted. It found project significantly increased eco-friendly area. suitability grades river improved two stages one stage, This applied analytical framework as policy/project assessment tool will be useful management policy.