SPATIAL DISTRIBUTION AND VULNERABILITY OF SEA WATER INTRUSION IN MAKASSAR CITYMeyke1, Soemarno, Harsuko Riniwati and Andi TamsilAbstract Seawater intrusion is defined as the degradation of ground water both in quality and quantity. Sea water intrusion can occur due to high groundwater uptake in an area. Likewise in the Untia area, Makassar City. This study aims to determine the spatial distribution and vulnerability of sea water intrusion that occurred in Untia Sub-District, Makassar City. The type of data used is primary data and secondary data. Data collection methods used in the study of seawater intrusion vulnerability in the Untia of Makassar City are the sampling method and the literature study (desk study). Data analysis method used is a laboratory analysis method, and SVI (Szlafstein Vurnerability Index). The results of the analysis were obtained; 1) that the study sites were generally saltwater-intrusive in the medium category (69.10%), 2) The total area of Untia Sub-District which was intruded in saltwater in the medium and high category was 267.0 ha or 89.30% and the remaining 9.03% are areas that are slightly intrused (low) and 5.0 Ha or 1.67% are not intrused. Generally the study areas are categorized as vulnerable and very vulnerable, reaching 1,295.53 ha or 80.79%. |