Analisis Spasial Tingkat Kerawanan Longsorlahan Di Kabupaten Kulonprogo Daerah Istimewa Yogyakarta

Darmawan, Rifqi and , Agus Anggoro Sigit, S. Si, M. Sc (2020) Analisis Spasial Tingkat Kerawanan Longsorlahan Di Kabupaten Kulonprogo Daerah Istimewa Yogyakarta. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Disaster is an event or series of events that threatens and disrupts the life and livelihood of the community which is caused, both by natural and or non-natural factors as well as human factors, resulting in human casualties, environmental damage, property loss, and psychological impacts. One of example of natural disasters that often occur in Indonesia, especially in Kulonprogo Regency, is landslides. Landslide disaster in Kulonprogo Regency caused material and non-material losses so it is necessary to conduct a study about the vulnerability of landslides in Kulonprogo Regency. A study on landslide vulnerability in Kulonprogo Regency fulfilling several geographic concepts, including the concept of location both relative and absolute, distance, landslide agitation patterns, land forms and slope, area differentiation in Kulonprogo Regency, and spatial relation which each characteristic becomes a parameter in determining landslides. Landslide hazard mapping is carried out using a geographic information system (GIS). The analytical method used is a weighted tiered quantitative analysis method. A weighted tiered quantitative analysis is an analysis that provides a rating value but with a different weight for each parameter used (Adil et al, 2014). The weight given takes into account the effect of each landslide hazard parameter. According to the method of Kusratmoko et al (2002) the parameters used in determining landslide vulnerability include slope slope, land use, soil erodibility, and rainfall. Landslide vulnerability in Kulonprogo Regency is divided into 5 hazard classes, namely non-vulnerable, a bit vulnerable, quite vulnerable, vulnerable, and very vulnerable. The landslide hazard class that dominates Kulonprogo Regency is the non-vulnerable landslide with an area of 26,454.42 ha or 46% of the total area of Kulonprogo Regency which is distributed in the south to the north from the east to the middle. Meanwhile, very vulnerable landslide hazard was 526.38 ha or only 1% of the total area of Kulonprogo Regency and distributed in mountainous areas from west to south. A bit vulnerable class covering an area of 13,052.45 ha; quite vulnerable class covering an area of 13,456.84 ha; vulnerable class with an area of 3,454.25 ha. The landslide vulnerability is generally grouped according to the distribution pattern of the slope as the greatest influence of determining landslide hazard. These results indicate that a tiered-weighted quantitative method that takes into account the existing parameters is very helpful in mapping landslide hazard and needs further study.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Longsorlahan, Aplikasi SIG, Kuantitatif Berjenjang Tertimbang
Subjects:	G Geography. Anthropology. Recreation > G Geography (General)
Divisions:	Fakultas Geografi > Geografi Fakultas Geografi > Geografi Fakultas Geografi > Geografi
Depositing User:	RIFQI ADI DARMAWAN
Date Deposited:	20 Nov 2020 07:47
Last Modified:	20 Nov 2020 07:47
URI:	http://eprints.ums.ac.id/id/eprint/87774

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