Site selection for artificial recharge in Cisangkuy sub-watershed, West Java, using combined fuzzy logic and genetic algorithm

The Cisangkuy sub-watershed is part of the Citarum watershed with ±300 km river length. total area in line potential water resources which quite good, but over time hydrological condition site has decreased. Decreasing state due to changes land use and cover from year indicated by high discharge flooding rainy season. This study aims find optimal location artificial recharge maintain balance sub-watershed. Fuzzy logic used for determining considering input variable DRASTIC form depth groundwater level, net recharge, aquifer media, soil type, slope, vadose zone, hydraulic conductivity. In addition, subtractive clustering performed obtain class each parameter. Furthermore, a genetic algorithm carried out get zone. priority zone parameter input. Combined fuzzy show that northern sub-watershed, precisely Banjaran area.