Effective Reservoir Management Methods using Nutrients Leaching Characteristic Analysis: Case Study of the Hongdong Reservoir

This study proposes an efficient management plan for improving the water quality of agricultural reservoirs. Hongdong reservoir is located in an area that includes farmland, forest, residential housing, and livestock farms. The levels of pollutants in Hongdong reservoir were investigated with the aim of improving the water quality in the reservoir. The potential concentrations of total nitrogen (T-N) and total phosphorus (T-P) in Hongdong reservoir were 1.06-3.67 and 0.52-1.12 , respectively. An analysis of leaching characteristics was performed under anaerobic conditions for 72 hours at . The concentrations of T-P and -P were measured by general leaching for a set period. In the case of T-P, the leaching was measured by irregular leaching due to denitrification of nitrite nitrogen (-N) and nitrate nitrogen (-N). A very small amount of -N on nitrogen () was measured due to the low pH in the column, as a consequence of the anaerobic conditions.