Pemetaan Daerah Resiko Mudah Tercemar dengan Pendekatan Multiatribut dan SIG Di Kawasan Karst Cibodas Sukabumi Selatan

Abstract

Cibodas Karst Region is a karst area which located in Sukabumi Regency. Geologicaly composed of Cibodas Limestone Formation. In this location, there are karst caves which have many surfaces and underground rivers. Study of soil water potential in karst area was approached by catcment zone studies using localizing the potential groundwater catchment zone. The process of rainwater infiltration into groundwater has a tendency through fracture zones which morphological indication is lineament morphological phenomena such as stream valleys and river flow areas. The lineament delineation can be used to identify and map a karst area based on EPIK factors. The result of lineament pattern identification shows high lineament zone (> 20 /km2) is a dry zone has a function as a catchment area. The result of protective factors calculation shows that Cibodas Karst Area is in highest level of vulnerability (S1) that has area of 17767.6 ha. Highest level vulnerability area in general means is the area of catchment zone karst valley which can be contaminated by the external factors.