Perubahan Risiko Bencana Banjir Bandang Berdasarkan Perubahan Guna Lahan dan Peningkatan Jumlah Penduduk di Wiliayah Sekitar DAS Mikro Sub DAS Ciwidey Tahun 2017 dan 2036

Abstract

The purpose of disaster risk assessment in this study is to identify and mapping of the level of change in flash flooding disasters risk in the area around the Micro Watershed of Ciwidey Watershed. This study uses a descriptive comparative method, using the spatial analysis method consisting of Overlay, Buffer and CA Markov techniques with the calculation of the risk index based on the technical guidelines for the preparation of the hazard and risk map issued by Japan International Cooperation Agency (JICA) in year of 2015. the risk that occurs only at the low to medium level, low to high, medium to low and medium to high where the area changes from the low risk level to the medium size of 74.29 ha, is being low at 97.54 ha, low to high amounting to 0.05 ha, and being high at 2.22 ha.