Mapping of water catchment area using GIS in Majalengka Regency, West Java']Java

Water catchment area is basically not to be exploited excessively. It will turn soil into faults which won't be able to hold rain water. Thus, soil which was categorized as fertile turned into arid land and its nutrients content decreased. Forests and water catchment damage potentials areas in Majalengka increased rapidly, in line with the medium -long term development plan. This research aimed to map the water catchment in Majalengka. The research was conducted in Majalengka from February to March 2018. The method used in the study was a survey with technical implementation of map overlaying and scoring using a Geographic Information System (GIS). The data used were secondary data. The data used were the Map of Land Use, Map of Precipitation 2013-2017, Map of Soil Texture, Map of Land Slope and Spatial Planning and Administration (RTRW) of Majalengka 2011-2031 Majalengka Regency 2011-2031. The results showed that Majalengka has three suitability classes of water catchment area, which are quite suitable, less suitable and not suitable. The suitability classes of water catchment area in Majalengka is as follows: (a) 39739.92 ha of quite suitable class, (b) 66233.30 ha of less suitable class and (c) 14450.88 ha of not suitable class.