Analysis of the Effect of Land Use on Flood Discharge in the Pangkajene River Basin, Pangkajene Regency and the Islands

Abstract

Changes in land cover that occur have an impact on hydrological conditions in a watershed. The hydrological condition referred to by the amount of watershed output is the discharge which describes the amount of water. This study aims to determine the effect of changes in land cover on river flow in the Pangkajene watershed. Data were analyzed using hydrological analysis and land use change. The results showed that there was an increase in design flood discharge of ±18.83 m³ in each return period. Changes in land use that occur are the area of rice fields, ponds, and settlements increases while the area of forest decreases. The increase in the value of flood discharge is not significant because changes in land use have not changed much either.