Landslide Susceptibility Mapping in Galela Lake Border Area North Halmahera Regency
DOI:
https://doi.org/10.52046/agrikan.v18i2.2636Keywords:
Galela Lake, border area, mapping; landslides, mitigationAbstract
The existence of Galela Lake is currently faced with the problem of landslides in lake border area. Slope characteristics and land conversion in border areas are factors causing landslides. Mitigation of landslide vulnerability in the Galela Lake border areas needs to be prepared by utilizing geographic information system. This study aims to classify the level of landslide vulnerability based on rainfall parameters, slope, soil type, and land cover. This research uses the scoring and overlay method using Arcmap 10.8 software. Research result show of area Galela Lake reaches 402 ha, total area of Galela Lake border area is 102,12 ha. The annual rainfall of the Galela region reaches 2743,8 mm. The results of the slope classification show that the slope of the Galela Lake border is dominated by a slope of 16-25% reaching 30,04 ha. The types of soil found were andosol 55,55 ha and cambisol 46,58 ha. The most dominant plantation land cover in the Galela Lake border area reaches 54,32 ha. The results of mapping the level of landslide vulnerability in the Galela Lake border Area show that 54.48% of this area is classified as moderately vulnerable with an area of 54,62 ha. 44,5% of the Galela Lake border area is at a high vulnerability level of 45,45 ha. Mitigation of the Galela Lake boundaries can be done by paying attention to setllement areas within a high-risk radius, such as the villages of Gotalamo, Duma, Dokulamo, Sotabaru, Samuda, Ngidiho, Bale, Ori, Igobula, Towara and Seki.
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Copyright (c) 2025 Hendro Christi Suhry, Edom Bayau, Jelvi Febrina Anjali Fika, Fridolian Side, Nikollas Pasimanyeku
This work is licensed under a Creative Commons Attribution 4.0 International License.
This work is licensed under a Creative Commons Attribution 4.0 International License.
