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All Journal Jurnal Manajemen Pendidikan Georafflesia : Artikel Ilmiah Pendidikan Geografi
Febrianto, Hary
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Earth & Planetary Sciences Education Environmental Science Social Sciences

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ANALISIS KERUSAKAN LAHAN PEMUKIMAN PADA KAWASAN BERDAMPAK LAHAR DINGIN GUNUNG MARAPI KABUPATEN TANAH DATAR SUMATERA BARAT Yanto, Andri; Veni, Veni; Rahayu, Intan Dwi; Febrianto, Hary; Simponi, Maijem; Afrianto, Nanda
Jurnal Manajemen Pendidikan Vol. 9 No. 3 (2024): JURNAL MANAJEMEN PENDIDIKAN
Publisher : STKIP Pesisir Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34125/jmp.v9i3.353

Abstract

Mount Merapi, Tanah Datar Regency, West Sumatra is one of the active volcanoes in Indonesia, especially on the island of Sumatra. One of the dangers posed by active volcanoes after an eruption is cold lava. Merapi Volcano has many rivers that originate at the top of Merapi, such as Bukik Batabuah, Pua River, several rivers in Batipuah District. Cold lava is a secondary disaster that cannot be underestimated because the impact it causes is just as big as a primary disaster if it is not handled properly. This research was carried out by direct observation of the disaster area, namely the foot of Mount Marapi with purposive sampling. Therefore, it is necessary to map the areas affected by cold lava. The area affected by the lava flow was modeled and simulated by means of spatial analysis using the parameters of the volume of the lava flow, the starting point of the river, and the slope of the slope, with the aim of finding out how fast the lava flows towards the settlement. From the aftermath of the Mount Marapi disaster, the distribution of areas that have the potential for pyroclastic material to pass through, especially in river areas that originate at Volcano. The results of the distribution of affected land use and residential areas with a volume of 100 million m3 covering an area of ​​26,815 Ha. The widest distribution is in the rice field area of ​​12,475 Ha, the residential area of ​​6,745 Ha, the garden area of ​​5,264 Ha and the field area of ​​3,330 Ha.
ANALISIS TINGKAT DAN FAKTOR PENYEBAB KERAWANAN BANJIR DI KECAMATAN SIBERUT SELATAN Ipan Karasius; Desi Eka Putri; Heny Mariati; Febrianto, Hary; Hary, Hary Febrianto
Jurnal Georafflesia : Artikel Ilmiah Pendidikan Geografi Vol 9 No 1 (2024)
Publisher : Universitas Prof. Dr. Hazairin, S.H

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/georaf.v9i1.4475

Abstract

This study aims to (1) analyze the distribution of flood vulnerability levels in South Siberut District, and (2) analyze the dominant factors causing flood vulnerability in South Siberut District. The sample of this study is some floodprone areas in South Siberut District. The research method used is quantitative descriptive. Data processing to determine the distribution of flood vulnerability levels is carried out by overlaying, scoring, and weighting from slope data, elevation, rainfall, soil type, river distance, and land use. To determine the dominant factor causing flooding using the Pearson correlation test. Based on the results of the study, it can be concluded that the level of flood vulnerability in South Siberut District is divided into three classes, namely the low vulnerability level covering an area of 34,991.67 ha (71.86%), the medium vulnerability level covering an area of 12,488.61 ha (25.65%), the high vulnerability level covering an area of 1,215.30 ha (2.50%). The rainfall parameter is the dominant factor causing flooding in South Siberut District because the correlation results get the highest value of 0.693, followed by land use of 0.503, elevation of 0.313, river distance of 0.281, soil type of 0.134, and slope of 0.126.
Co-Authors Afrianto, Nanda Andri Yanto Desi Eka Putri Hary, Hary Febrianto Heny Mariati Ipan Karasius rahayu, Intan dwi Simponi, Maijem veni Veni, veni