Exploratory Integrated Water Resources Management (IWRM) Study in Demak Coastal Area: Water Availability and Water Users
Aquaculture, fisheries and coastal agriculture
Coastal wetland conservation
Integrated delta management
The Deltares modelling study shows that the yearly water supply from the rivers is abundant in Demak, however it is unequally distributed over space and time. The watershed has a surplus of water over the wet season and this surplus is not retained and used efficiently during the drier periods. Furthermore, most of the available river water is used in Eastern part of the province. Sustainable freshwater management and distribution is key to minimise groundwater pumping and subsidence. Since subsidence threatens long-term survival of mangrove forests, preventing this phenomenon also helps to maintain a healthy mangrove forest, which is important for coastal protection and aquaculture.