Analisis Spasial Bentuk Lahan dan Potensi Kebencanaan pada Koridor Jalan Lingkar Regional
DOI:
https://doi.org/10.36709/jppg.v10i3.530Keywords:
Gorontalo Outer Ring Road, landslide hazard, disaster mitigationAbstract
The construction of the Gorontalo Outer Ring Road (GORR) in hilly terrain carries a high potential for disaster risk. Therefore, a study of the physical land characteristics is crucial to support disaster risk mitigation along the route. This study aims to analyze the landform and disaster potential in the GORR area. The research was conducted through spatial analysis supported by field surveys and historical landslide information from local communities. Geomorphological, analysis indicates that the GORR area lies within denudational hills. Based on the Regional Geological Map of the Tilamuta Sheet, the exposed lithology is dominated by clastic limestone units (TQl), Bilungala volcanic rocks (Tmv), Bone diorite (Tmb), and lake deposits (Qpl). Land cover includes the GORR road, gardens, fields, and shrubs, with maize and coconut plantations that can accelerate surface erosion due to their limited capacity to retain water.Steep slopes further increase the risk of landslides, which pose a danger to road users and nearby communities. Therefore, disaster mitigation strategies are needed, including the delineation of landslide-prone zones and the installation of warning signs at critical points to enhance public awareness, especially during the rainy season. These efforts support sustainable development and disaster risk reduction in the GORR region.
References
Achmad, F., Harmain, D. M., dan Husnan, F. (2019). Tinjauan Longsoran pada Ruas Gorontalo Outer Ring Road (GORR) Km 4+ 650–4+ 800. Prosiding Seminar Nasional Pascasarjana, 274-283.
Bachri, S. (2006). Stratigrafi Lajur Volkano-Plutonik Daerah Gorontalo, Sulawesi. Jurnal Geologi dan Sumberdaya Mineral, 16(2), 94-106.
Bachri, S., Sukido., dan Ratman, N. (1993). Peta Geologi Regional Lembar Tilamuta (Skala 1:250.000). Pusat Penelitian dan Pengembangan Geologi. Bandung.
Badan Pusat Statistik [BPS]. (2020). Kabupaten Gorontalo Dalam Angka 2020. Gorontalo: Badan Pusat Statistik.
Direktorat Jenderal Reboisasi dan Rehabilitasi Lahan. (1986) Pedoman Penyusunan Pola Rehabilitasi Lahan dan Konservasi Tanah. Jakarta: Departemen Kehutanan.
Handayani, U. N. D., Soelistijadi, R., dan Sunardi. (2005). Pemanfaatan Analisis Spasial untuk Pengelahan Data Spasial Sistem Informasi Geografi. Jurnal Teknologi Informasi DINAMIK, 10(2), 108-116.
Irwansyah, E. (2013). Sistem Informasi Geografis: Prinsip Dasar dan Pengembangan Aplikasi. DigiBook Yogyakarta..
Lillesand, T., Kiefer, R. W., dan Chipman, J. (2015). Remote Sensing and Image Interpretation (7th Edition). John Wiley & Sons.
Putri, P., dan Zain, A. F. (2010). Analisis Spasial dan Temporal Perubahan Luas Ruang Terbuka Hijau di Kota Bandung. Jurnal Lanskap Indonesia, 2(2), 115-121.
Rangin, C., Le Pichon, X., Mazzotti, S., Pubellier, M., Chamot-Rooke, N., Aurelio, M., Walpersdorf, A., dan Quebral, R. (1999). Plate Convergence Measured by GPS Across the Sundaland/Philippine Sea Plate Deformed Boundary: The Philippines and Eastern Indonesia. Geophysical Journal International, 2, 296-316.
Socquet, A., Simons, W., Vigny, C., McCaffrey, R., Subarya, C., Sarsito, D., Ambrosius, B., dan Spakman, W. (2006). Microblock Rotations and Fault Coupling in SE Asia Triple Junction (Sulawesi, Indonesia) from GPS and Earthquake Slip Vector Data. Journal of Geophysical Research: Solid Earth, 111(B8).
Syamsuri, R. R. N., Zainuri, A., dan Kasim, M. (2022). Metode Geological Strength Index (GSI) untuk Perkiraan Bahaya Bencana Geoteknik pada Lereng Ruas Gorontalo Outer Ring Road Segment 1 STA 6+ 450. JRST (Jurnal Riset Sains dan Teknologi), 6(1), 47-52.
Tian, B. (2017). GIS Technology Applications In Environmental and Earth Sciences. CRS Press Taylor & Francis Group.
Usman, F. C. A., Manyoe, I. N., Duwingik, R. F., dan Kasim, D. N. P. (2018). Rekonstruksi Tipe Longsoran di Daerah Gorontalo Outer Ring Road (GORR) dengan Analisis Stereografi. Jurnal Geomine, 6(1), 42-48.
Van Zuidam, R. A. (1985). Aeril Photo-Interpretation in Terrain Analysis and Geomorphologic Mapping. Smith Publisher, The Hague, ITC.
Verstappen, H. Th. (1983). Applied Geomorphology: Geomorphological Surveys for Environmental Development. New York: Elsevier Science Publishing Company Inc.
Waas, E. D., Kaihatu, S., dan Ayal, Y. (2016) Identifikasi dan Penentuan Jenis Tanah di Kabupaten Seram Bagian Barat. Jurnal Agros, 18(2), 170-180.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Jurnal Penelitian Pendidikan Geografi
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
