A Study of Anticipating the Flood Hazard in Agricultural Areas in Ular Watershed by Using Geospatial Approach

Indonesia is a country which is extremely vulnerable to the natural disasters, one of which is Indonesia is a country vulnerable to various natural disasters such as flood. Flood in a coastal area can cause plant damages and increase of plant diseases. Flood is potential to disrupt the food security because the production of crops decreases due to the damages to agricultural and fishery areas. Therefore, it is necessary to make some efforts to develop the anticipationability to face flood in order to reduce the flood impacts. This research is a descriptive quantitative encompassing the analysis of potentials of flood hazard in the agricultural areas and the implementation of forms of anticipation in the agricultural areas which are vulnerable to flood hazard. The mapping of distribution areas that are vulnerable to flood hazard in Ular watershed by utilizing the technology of Geographic Information System through the overlay method for rainfall, geomorphologic, land use, and flood mappings. According to the research results, The area with high flood vulnerability class is 1,105.56 ha The anticipation efforts which the farmers have carried out are: (1) building some dams and embankments along the borderline of the Ular River, (2) selecting the types of plants and patterns of planting, and (3) preparing some budget to anticipate the damage due to flood. The effort that has been done to anticipate the flood, is pay Agricultural Insurance preimium of Rp. 50.000, - per hectare, where with the sum insured price of Rp.6.000.000, - per hectare, then the cost of compensation to be prepared by the government is Rp. 6,000,000 x 1,105.56 ha = Rp. 6.630.000.000,00 per planting season.