The article addresses the challenges of managing non-point source (NPS) pollution in South Korea, particularly due to its unique topographical and climatic characteristics. NPS pollutants, stemming from urban and agricultural areas, contribute to issues like toxic algal blooms and biodiversity loss. Best management practices (BMPs) have been proposed as solutions to mitigate these pollutants, yet the study specifically examines the effectiveness of combined BMPs—vegetative filter strips (VFS) and wetlands—compared to individual practices.
Utilizing the Soil and Water Assessment Tool (SWAT), the research focuses on the So-okcheon watershed, a critical area affecting Daecheong Lake’s water quality. The study simulates nutrient loads and assesses BMP performance, revealing superior pollutant reduction efficiencies when VFS and wetlands are used together (39.2% for TN and 47.6% for TP). Additionally, the study evaluates how BMP efficiency may evolve under different climate scenarios projected through Shared Socioeconomic Pathways (SSPs), finding that combined BMP approaches remain robust even under severe climate conditions.
The findings emphasize the need for tailored BMP strategies in managing NPS pollution, advocating for their adaptable implementation across varying climate scenarios. Overall, the article highlights the importance of informed decision-making in selecting BMPs for effective water quality management in South Korea’s complex landscapes. The study also suggests further exploration into cost-effectiveness and localized BMP impacts for future research.
