Analisis Tingkat Kerawanan Longsorlahan Di Sub DAS Pusur Menggunakan Sistem Informasi Geografi (SIG)

Aristya, Lana and , Dr. Annisa Trisnia Sasmi, S.Si., M.T (2025) Analisis Tingkat Kerawanan Longsorlahan Di Sub DAS Pusur Menggunakan Sistem Informasi Geografi (SIG). Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Landslides are natural disasters that occur due to soil or rock movements. In the Pusur Sub-DAS area, landslides are a significant problem because this area is dominated by hills and mountains with relatively high rainfall. Therefore, an analysis is needed to identify the level of vulnerability and distribution of landslide events. The purpose of this study was to analyze the level of landslide vulnerability in the Pusur Sub-DAS area and to analyze the distribution of actual landslide events in the Pusur Sub-DAS. This research method uses a quantitative approach with scoring and weighting. The data used are primary and secondary data. Landslide vulnerability parameters include geological conditions, rainfall, land use, soil type and slope gradient. Field surveys were conducted to validate actual landslide events in the field. Based on the results of spatial analysis, the level of landslide vulnerability in the Pusur Sub-DAS area can be classified into 3 classes, namely Low vulnerability covering an area of 20.55 km² (35.77%), Medium vulnerability covering an area of 23.17 km² (40.33%), High vulnerability: covering an area of 13.73 km² (23.89%). The distribution of actual landslide events shows that there are 15 landslide points, most of which are in areas with moderate to high levels of vulnerability. This shows that there is a high level of agreement between the results of landslide vulnerability modeling and real conditions in the field. This study shows that the Pusur Sub-DAS area has a significant potential for landslide vulnerability, especially in areas with steep topography and high rainfall. The resulting vulnerability map has good level of agreement with actual landslide events.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Tingkat kerawanan, Pembobotan, Skoring, SIG,Sub DAS Pusur
Subjects:	G Geography. Anthropology. Recreation > G Geography (General) G Geography. Anthropology. Recreation > GB Physical geography > GB1 Geomorfology
Divisions:	Fakultas Geografi > S1 Geografi
Depositing User:	Unnamed user with username e100200214
Date Deposited:	24 Jul 2025 08:56
Last Modified:	24 Jul 2025 08:56
URI:	http://eprints.ums.ac.id/id/eprint/136321

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