Identifikasi Daerah Potensi Longsor Melalui Pengamatan Erosi Berdasarkan Analisis Nilai Suseptibilitas Magnetik Tanah (Studi Kasus: Daerah Tonggo Kanagarian Tigo Koto Silungkang, Kecamatan Palembayan, Kabupaten Agam, Sumatera Barat)

Authors

  • Haris Luthfi Departemen Fisika, Universitas Andalas
  • Arif Budiman Departemen Fisika, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.13.5.711-717.2024

Keywords:

erosion, landslide, magnetic susceptibility, low frequency, frequency-dependent

Abstract

based on soil magnetic susceptibility (MS) analysis in Tonggo Kenagarian Tigo Koto Silungkang area, Palembayan District, Agam Regency, West Sumatra Province. Soil samples were taken from on two slopes, namely Track A and Track B and one reference point. Samples were measured for low frequency MS (χlf) and frequency-dependent MS (χfd). The results showed that χlf and χfd respectively ranged from 183.7 to 435.5 ×10-8 m3kg-1 and 1.2 to 4.6% (Track A), 416.9 to 600.4 ×10-8 m3kg-1 and 0.9 to 2.2% (Track B), and 365.8 to 638.3 ×10-8 m3kg-1 (reference point). The χlf value of sample of each point on Track A is much smaller than the χlf value of sample of the reference point, while the χlf value of sample of each point on Track B is almost close to the χlf value of sample of the reference point. These results indicate that the slopes of Track A experienced more severe erosion than Track B. The distribution of χlf and χfd values for Track A was relatively straight, whereas for Track B the increase in the χlf value was not followed by an increase in the χfd value. These results indicate that Track A experienced anthropogenic disturbance. The slope of Track A has a greater landslide potential than the slope of Track B.

References

Arsyad, S. (2009). Konservasi tanah dan air. Pt Penerbit Ipb Press.

BPS Agam. (2021). Kecematan Palembayan Dalam Angka 2021. https://agamkab.bps.go.id/publication/2021/09/24/608c837976af49cdf82e5569/kecamatan palembayan-dalam-angka-2021.html

De Jong, E., Pennock, D. J., & Nestor, P. A. (2000). Magnetic susceptibility of soils in different slope positions in Saskatchewan, Canada. Catena, 40(3), 291–305. https://doi.org/10.1016/S03418162(00)00080-1

Dearing, J. A. (1999). MS2/MS3 Magnetic Susceptibility System Manual. British Library

Derajah, A., & Budiman, A. (2022). Analisis Nilai Suseptibilitas Magnetik Tanah Untuk Pendugaan Erosi di Daerah Sekitar Jalan Lintas Sungai Penuh-Tapan. Jurnal Fisika Unand, 11(3), 341-347. https://doi.org/10.25077/jfu.11.3.341-347.2022

Eso, R., Safiuddin, L. O., Bijaksana, S., Ngkoimani, L. O., Agustine, E., Tamuntuan, G., Tufaila, M., Syaf, H., Harudu, L., Alfat, S., Usman, I., Hasrorayan, & Ardin. (2019). Patterns of variation magnetic properties and chemical elements of soil profile in landslide area of South East Sulawesi Indonesia. IOP Conference Series: Earth and Environmental Science, 311(1). https://doi.org/10.1088/1755-1315/311/1/012008

Finaka, A. W. (2023). 4.940 Bencana Terjadi di Indonesia Sepanjang 2023. https://indonesiabaik.id/infografis/4940-bencana-terjadi-di-indonesia-sepanjang-2023

Liu, L., Zhang, K., Zhang, Z., & Qiu, Q. (2015). Identifying soil redistribution patterns by magnetic susceptibility on the black soil farmland in Northeast China. Catena, 129, 103–111.

Menshov, O., Ivanik, O., Vyzhva, S., Horoshkova, L., Tonkha, O., & Hadiatska, K. (2022). Applying Magnetic Methods To Studies of Soil Erosion and Landslides in Ukraine’S Urban Areas. 83rd EAGE Conference and Exhibition 2022, 5, 3376–3380. https://doi.org/10.3997/22144609.202210933

Menshov, O., Kruglov, O., Vyzhva, S., Nazarok, P., Pereira, P., & Pastushenko, T. (2018). Magnetic methods in tracing soil erosion, Kharkov Region, Ukraine. Studia Geophysica et Geodaetica, 62(4), 681–696. https://doi.org/10.1007/s11200-018-0803-1

Mullins, C. E. (1977). Magnetic Susceptibility of the Soil and Its Significance in Soil Science – a Review. Journal of Soil Science, 28(2), 223–246. https://doi.org/10.1111/j.1365-2389.1977.tb02232.x

Putri, R. S., & Budiman, A. (2024). Identifikasi Pola Redistribusi Tanah Yang Tidak dan Telah Mengalami Longsor Berdasarkan Nilai Suseptibilitas Magnetik di Daerah Batu Busuk Kota Padang. Jurnal Fisika Unand, 13(1), 22–28. https://doi.org/10.25077/jfu.13.1.22-28.2024

Rahimi, M. R., Ayoubi, S., & Abdi, M. R. (2013). Magnetic susceptibility and Cs-137 inventory variability as influenced by land use change and slope positions in a hilly, semiarid region of west-central Iran. Journal of Applied Geophysics, 89, 68–75. https://doi.org/10.1016/j.jappgeo.2012.11.009

Ramdhani, R., Fitriani, D., Kirana, K. H., Wijatmoko, B., & Sutanto, O. (2016). Magnetic properties of soils from landslide potential area (Case study: Pasir Ipis-Lembang, West Bandung). Journal of Physics: Conference Series, 739(1), 2–7. https://doi.org/10.1088/1742-6596/739/1/012107

Silvia, C. R., Rifai, H., & Dwiridal, L. (2022). Application of Rock Magnetic Methods to Landslide Disaster Vulnerability : a Case Study ( Malalak , Agam Regency ). 15(2), 105–110.

Sitompul, E. G., & Budiman, A. (2022). Pendugaan Kedalaman Erosi Melalui Analisis Nilai Suseptibilitas Magnetik Tanah Di Salah Satu Daerah Lereng Nagari Bukik Limbuku. Jurnal Fisika Unand, 12(1), 56–62. https://doi.org/10.25077/jfu.12.1.56-62.2023

Yue, Y., Keli, Z., Liang, L., Qianhong, M., & Jianyong, L. (2019). Estimating long-term erosion and sedimentation rate on farmland using magnetic susceptibility in northeast China. Soil and Tillage Research, 187, 41–49. https://doi.org/10.1016/j.still.2018.11.011

Zhang, J. H., Su, Z. A., & Nie, X. J. (2009). An investigation of soil translocation and erosion by conservation hoeing tillage on steep lands using a magnetic tracer. Soil and Tillage Research, 105(2), 177–183. https://doi.org/10.1016/j.still.2009.07.006

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Published

2024-09-02

How to Cite

Luthfi, H., & Budiman, A. (2024). Identifikasi Daerah Potensi Longsor Melalui Pengamatan Erosi Berdasarkan Analisis Nilai Suseptibilitas Magnetik Tanah (Studi Kasus: Daerah Tonggo Kanagarian Tigo Koto Silungkang, Kecamatan Palembayan, Kabupaten Agam, Sumatera Barat). Jurnal Fisika Unand, 13(5), 711–717. https://doi.org/10.25077/jfu.13.5.711-717.2024

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