PEMANFAATAN INFORMASI SPASIAL BERBASIS SIG UNTUK PEMETAAN TINGKAT KERAWANAN LONGSOR DI KECAMATAN SUMALATA

Authors

  • La Ode Juni Akbar UNIVERSITAS BINATARUNA GORONTALO
  • Dewi Sartika T. Zees Universitas Bina Taruna Gorontalo
  • Bambang Djau Universitas Bina Taruna Gorontalo

DOI:

https://doi.org/10.37971/radial.v12i1.443

Keywords:

Mapping, SIG, Landslide, Sumalata District

Abstract

Abstract: The utilization of GIS-Based Spatial Information for Mapping the Landslide Vulnerability Levels in Sumalata District

Sumalata district is an area with hilly topography which is dominated by relatively steep slopes. The landslide disaster frequently occurs in this study setting. This study aims to explore the utilization of GIS-Based Spatial Information for mapping the landslide vulnerability levels in Sumalata District. Based on the observation on March to April 2024, there are 7 landslide disaster occurred. However, the disaster can be minimized by mapping the landslide-prone area. The approach used in this study is a land unit approach. The classification of land unit is obtained from the overlay of thematic map which consist of maps of rainfall, land cover, slopes, rocks and soil type maps. The result of this study shows that the classification of the landslide vulnerability categorized in three aspects, there are low grade with 49,304 Ha, medium grade with 13.409,71 Ha, and high grade with 16.921,36 Ha.

References

Agaton, M., Setiawan, Y., & Effendi, H. (2016). Land Use/Land Cover Change Detection in an Urban Watershed: A Case Study of Upper Citarum Watershed, West Java Province, Indonesia. Procedia Environmental Sciences, 33(April), 654–660. https://doi.org/10.1016/j.proenv.2016.03.120

Atharinafi, Z., & Wijaya, N. (2021). Land use change and its impacts on surface runoff in rural areas of the upper citarum watershed (case study: Cirasea subwatershed). Journal of Regional and City Planning, 32(1), 36–55. https://doi.org/10.5614/jpwk.2021.32.1.3

Banjara, M., Bhusal, A., Ghimire, A. B., & Kalra, A. (2024). Impact of Land Use and Land Cover Change on Hydrological Processes in Urban Watersheds: Analysis and Forecasting for Flood Risk Management. Geosciences (Switzerland), 14(2). https://doi.org/10.3390/geosciences14020040

Fadhil, M. Y., Hidayat, Y., & Baskoro, D. P. T. (2021). Identifikasi Perubahan Penggunaan Lahan dan Karakteristik Hidrologi DAS Citarum Hulu. Jurnal Ilmu Pertanian Indonesia, 26(2), 213–220. https://doi.org/10.18343/jipi.26.2.213

Muin, S., Boer, R., & Suharnoto, Y. (2015). Pemodelan Banjir dan Analisis Kerugian Akibat Bencana Banjir di DAS Citarum Hulu. Jurnal Tanah Dan Iklim, 39(2), 75–84.

Mujib, M. A., Apriyanto, B., Kurnianto, F. A., Ikhsan, F. A., Nurdin, E. A., Pangastuti, E. I., & Astutik, S. (2021). Assessment of Flood Hazard Mapping Based on Analytical Hierarchy Process (AHP) and GIS: Application in Kencong District, Jember Regency, Indonesia. Geosfera Indonesia, 6(3), 353. https://doi.org/10.19184/geosi.v6i3.21668

Permatasari, R., Arwin, & Natakusumah, D. K. (2017). Pengaruh Perubahan Penggunaan Lahan terhadap Rezim Hidrologi DAS (Studi Kasus : DAS Komering) Arwin Dantje Kardana Natakusumah. Jurnal Teknik Sipil, 24(1), 91–98. https://doi.org/10.5614/jts.2017.24.1.11

Peraturan Menteri Lingkungan Hidup dan Kehutanan RI, Nomor 10. Tahun 2022 Tentang Penyusunan Rencana Umum Rehabilitasi Hutan Dan Lahan Daerah Aliran Sungai Dan Rencana Tahunan Rehabilitasi Hutan Dan Lahan. Jakarta

Rahmawati, L., & Purwanto, B. (2011). Impact of land use change on flood frequency in Musi Watershed. Journal of Hydrology, 400, 60-70.

Ridwan, M., & Sarjito, J. (2024). Studi Kajian Dampak Perubahan Tutupan Lahan terhadap Kejadian Banjir di Daerah Aliran Sungai. 26, 38–45.

Robbi, R. A., Astutik, S., & Kurnianto, F. A. (2022). Kajian Kerawanan Bencana Longsor Berbasis Sistem Informasi Geografis Sebagai Acuan Mitigasi Bencana di Kecamatan Panti, Kabupaten Jember. Majalah Pembelajaran Geografi, 5(1), 1. https://doi.org/10.19184/pgeo.v5i1.29716

Sari, R. F., Boer, R., & Anwar, S. (2017). The impacts of land-use change on the hydrology of the Citarum River basin. Procedia Environmental Sciences, 33, 415-421.

Setyowati, D. L. (2021). Assessment of Watershed Carrying Capacity and Land Use Change on Flood Vulnerability Areas in Semarang City. Forum Geografi, 35(2), 141–152. https://doi.org/10.23917/forgeo.v35i2.15542

Susanti, P. D., & Miardini, A. (2019). Identifikasi Karakteristik dan Faktor Pengaruh pada Berbagai Tipe Longsor. AgriTECH, 39(2), 97. https://doi.org/10.22146/agritech.40562

Utami, W. U., Wahjunie, E. D., & Tarigan, S. D. (2020). Land use/land cover change detection in an urban watershed: a case study of upper Citarum Watershed, West Java Province, Indonesia. Procedia Environmental Sciences, 33, 654-660.

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Published

2024-07-05