Novanda, Annisa Sabila (2025) TEKNIK MITIGASI BENCANA BERDASARKAN KARAKTERISTIK GERAKAN MASSA TANAH DI KAPANEWON DLINGO, KABUPATEN BANTUL, DAERAH ISTIMEWA YOGYAKARTA. Skripsi thesis, UPN Veteran Yogyakarta.
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Abstract
TEKNIK MITIGASI BENCANA BERDASARKAN KARAKTERISTIK
GERAKAN MASSA TANAH DI KAPANEWON DLINGO, KABUPATEN
BANTUL, DAERAH ISTIMEWA YOGYAKARTA
Oleh:
Annisa Sabila Novanda
114190097
INTISARI
Kapanewon Dlingo terletak di timur Kabupaten Bantul, memiliki bentang alam
perbukitan sehingga gerakan massa tanah/longsor menjadi salah satu bencana alam
yang mengancam. Berdasarkan data statistik laman sedata Bantul pada tahun 2022,
2023, 2024 secara berurutan terdapat sebanyak 17, 12, dan 3 kejadian longsor di
Kapanewon Dlingo. Pada tahun 2025 hingga bulan Mei setidaknya terdapat 27
kejadian longsor. Kejadian longsor terjadi pada pertengahan Bulan Maret 2023 dan
awal bulan Desember 2024 di Padukuhan Sukorame, Kalurahan Mangunan. Longsor
tersebut mengakibatkan kerugian materi berupa rusaknya rumah warga dan akses jalan
desa. Untuk itu, analisa lebih lanjut diperlukan untuk mengetahui persebaran area
rawan gerakan massa tanah sebagai upaya mitigasi sehingga dapat menciptakan
lingkungan aman bagi masyarakat Kapanewon Dlingo.
Metode penelitian berupa kualitatif dan kuantitatif. Pengambilan data dari
survei, studi literatur dan institusi terkait. Sampling dilakukan dengan purposive
sampling. Analisis dilakukan berdasarkan formula kerawanan gerakan massa tanah
dengan metode Sidik Cepat dari KLHK 2006 yang dijelaskan pada Paimin, dkk (2009).
Analisis tingkat kerawanan gerakan massa tanah dilakukan dengan skoring dan
pembobotan, overlay, dan penyusunan peta kerawanan gerakan massa tanah.
Pengolahan data dilakukan secara digital dengan perangkat lunak ArcMap 10.8.
Hasil penelitian menunjukkan gerakan massa tanah yang ditemui berupa
longsoran rotasi dan runtuhan; terjadi pada lereng kemiringan >50º saat/setelah hujan
dengan intensitas >100 mm/hari dan waktu >2 hari, serta material longsoran berupa
massa tanah dan bongkahan batuan. Daerah penelitian didominasi oleh kategori agak
rawan dengan rentang skor tertimbang sebesar 2,6 – 3,4 sebesar 71,98% total wilayah,
mencakup 42,8559 km2, dominan berada di bagian tengah hingga timur dari
Kapanewon Dlingo. Daerah dengan kategori rawan sebesar 2,82% total wilayah seluas
1,6791 km2, tersebar mengikuti pola pemukiman dan keberadaan jalan memotong
lereng. Pengendalian gerakan massa tanah yang direkomendasikan berupa penguatan
lereng dengan dinding penahan tanah gaya gravitasi dan kantilever pada area
pemukiman, serta metode vegetative dengan penanaman rumput vertiver pada lereng
yang jauh dari lokasi aktivitas masyarakat.
Kata kunci: Gerakan Massa Tanah, Longsor, Kerawanan Gerakan Massa Tanah
xi
MITIGATION TECHNIQUES BASED OF THE SOIL MASS MOVEMENT
CHARACTERISTICSIN KAPANEWON DLINGO, KABUPATEN BANTUL,
DAERAH ISTIMEWA YOGYAKARTA
By:
Annisa Sabila Novanda
114190097
ABSTRACT
Kapanewon Dlingo, located in the eastern part of Bantul Regency, is
characterized by hilly terrain, making it vulnerable to mass movement or landslides.
Based on statistical data from the Sedata Bantul website, the number of landslide
incidents in Kapanewon Dlingo were recorded as 17 in 2022, 12 in 2023, and 3 in
2024. As of May 2025, at least 27 landslides have occurred. Notable landslides took
place in mid-March 2023 and early December 2024 in Padukuhan Sukorame,
Kalurahan Mangunan, causing material losses including damage to residential
buildings and disruption of village road access. Therefore, further analysis is essential
to identify the spatial distribution of landslide-prone areas as part of a mitigation
strategy to establish a safer environment for the local.
This study employed both qualitative and quantitative methods. Data collection
was conducted through surveys and literature reviews. Sampling was carried out using
a purposive sampling technique. The analysis was based on the landslide susceptibility
formula using the Rapid Assessment Method (Sidik Cepat) developed by the Ministry
of Environment and Forestry (KLHK, 2006), as described by Paimin et al. (2009). The
assessment of landslide susceptibility levels involved scoring and weighting, overlay
analysis, and the development of a landslide susceptibility map. Data processing was
performed digitally using ArcMap 10.8 software.
The results indicate the presence of rotational slides and rock falls,
predominantly occurring on slopes with >50º angles during or after rainfall exceeding
100 mm/day over more than two consecutive days. The landslide materials consisted
of soil masses and rock fragments. The study area is predominantly categorized as
moderately vulnerable, with a weighted score range of 2.6–3.4, encompassing 71.98%
of the total area (42.8559 km²), mainly in the central to eastern parts of Kapanewon
Dlingo. Areas categorized as highly vulnerable cover 2.82% of the total area (1.6791
km²), generally aligned with settlement patterns and roads that traverse steep slopes.
Recommended mitigation measures include slope stabilization using gravity and
cantilever retaining walls in residential areas, as well as vegetative methods such as
planting vetiver grass on slopes distant from human activities.
Keywords: Soil Mass Movement, Landslides, Vulnerabillity
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| Item Type: | Tugas Akhir (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Soil Mass Movement, Landslides, Vulnerabillity |
| Subjek: | T Technology > T Technology (General) |
| Divisions: | Fakultas Teknologi Mineral dan Energi > (S1) Teknik Lingkungan |
| Depositing User: | Eko Yuli |
| Date Deposited: | 16 Oct 2025 04:31 |
| Last Modified: | 16 Oct 2025 04:31 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/44478 |
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