ANALISIS SPASIAL PERUBAHAN BENTANG LAHAN PASCA LIKUIFAKSI DI KELURAHAN PETOBO KOTA PALU UNTUK PERENCANAAN RUANG TERBUKA HIJAU
Abstract
The city of Palu is one most active seismic in Indonesia, the high level of seismic activity in this is inseparable from its location. Liquidity events during an earthquake can be characterized by ground movement, water coming out of land fractures. Therefore, the purpose of this study is to determine the landscape changes that occur after liquefaction in the Petobo sub-district in Palu City, as a reference in Green Open Space (RTH) planning. This research was carried out for three months, from April to July 2019. The location study was conducted in Petobo Village, Palu City, Central Sulawesi. The research method used is the method of overlay, interpretation and taking a point in the field. Data processing was performed using ArcGis 10.4 software, pre-processing was carried out georeferenced. Planning of the Green Village area of Petobo Village, where the land has been transformed into raised land, land into swamp, and land shifted due to liquefaction disaster, now the place is not suitable for settlement because it is considered a disaster-prone red zone. It is known that the area of Petobo Village before the liquefaction with 792.24 Ha area, the location after the liquefaction affected was 178.87 Ha. Petobo Kelurahan that has been raised is allocated to urban forest with 100.24 Ha of forestry trees planted, Petobo Kelurahan with swampy land must be maintained because there are aquatic biota covering 19.95 Ha, Petobo Kelurahan with shifted land suitable to be used as a RTH for burial parks with an area 73.70 Ha.
Keywords : Landscape, Liquidation, Green Open Space
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