Characterization and Management of Karst Drainage System : LAP Lambert Academic Publishing : 9786134969796 : 6134969796 : 27 Sep 2019 : This study was conducted in Gunung Sewu karst area, focused on several sampling locations which are Gilap Cave, Beton Spring, Bribin Underground River, Ngreneng Underground River, and Kakap Spring. The objectives of this study are: (1) to determine the characteristics of recession curves from several karst springs and groundwater rivers in Gunung Sewu karst area; (2) to assess the karstification degree of several karst springs and groundwater rivers within Gunung Sewu Karst; (3) to evaluate the physical conditions of karst drainage system in Gunung Sewu Karst Area based on the karstification degree for karst water resources management. The primary data of hydrograph data series obtained from automatic water level data logger and field measurements. The secondary data were obtained from several previous research, such as hydrograph data and the physical