# Analysis of the landslide susceptibility map using frequency ratio method in sub-sub-Watershed Mamasa
> Amaliah R.

URL kanonis: https://discover.unhas.ac.id/publications/analysis-of-the-landslide-susceptibility-map-using-frequency-ratio-method-in-sub
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2021
DOI: https://doi.org/10.1088/1755-1315/886/1/012088
ISSN: 17551307
Citations: 9

## Authors
- Amaliah R.

## Abstract
Abstract Landslides that often occur in the Subs watershed of Mamasa increase the sedimentation rate so that the Bakaru hydropower plant becomes less than optimal. The contributing factors to lanslide susceptibility are land closure, lithology, curve, slope direction aspect, slope, precipitation, fault distance, and river distance. The research aims to determine the most influential erosion causative factor in Mamasa Sub-watershed by building a landslide susceptibility map using the frequency ratio method. The most significant factor is land closure, with a value of 2.03, indicating a high probability of lanslide events. The model’s success rate and prediction rate’s success rate were expressed fairly well with 0.754 and 0.752. Based on the insanity map, the Region is very high and high at 23.74% and 12.52%; insanity is moderate, low, and very low consecutively at 27.44 %, 23.77, and 12.33%.

## Keywords
- Watershed
- Landslide
- Lithology
- Hydropower
- Precipitation
- Hydrology (agriculture)
- Closure (psychology)
- Environmental science
- Geology
- Sedimentation
- Erosion
- Fault (geology)
- Geomorphology
- Physical geography
- Sediment
- Geography
- Geotechnical engineering
- Meteorology
- Engineering
- Seismology
- Computer science
- Economics
- Electrical engineering
- Market economy
- Paleontology
- Machine learning

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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