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All Journal Geoplanning : Journal of Geomatics and Planning Forum Geografi The Indonesian Journal of Planning and Development
Saut Aritua Hasiholan Sagala
Sekolah Arsitektur, Perencanaan dan Pengembangan Kebijakan, Institut Teknologi Bandung
Earth & Planetary Sciences Environmental Science Social Sciences

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Journal : Forum Geografi

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Analisis Bahaya dan Resiko Bencana Gunungapi Papandayan (Studi Kasus: Kecamatan Cisurupan, Kabupaten Garut) Sagala, Saut Aritua Hasiholan; Yasaditama, Hadian Idhar
Forum Geografi Vol 26, No 1 (2012): July 2012
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v26i1.5046

Abstract

Risk assessment is an important step to be carried out for disaster management. It provides information for decision makers and communities in pre-disaster, during disaster and post disaster event. Nevertheless, risk assessment in Indonesia, especially on active volcanoes is still limited. This paper presents the risk assessment of Mt. Papandayan (2.665 m), the most active volcano in West Java. The unit of analysis in this study follows the administrative boundaries of village so that the identification can be applied at village level using GIS. Hazard analysis refers to the official hazard map produced by PVMBG while the vulnerability analysis is carried out in 3 sub-analysis, physical vulnerability (7 indicators), social vulnerability (7 indicators), and economic vulnerability. The hazard and vulnerability were overlayed in order to produce the risk which is subsequently made into risk map. The findings indicate that the villages located near and on the direction of the crater have relatively higher risk compared to other villages. The risk map can be incorporated as one of references for spatial planning that integrates disaster mitigation.
SPECIES DISTRIBUTION OF STYRAX SUMATRANA IN NORTH SUMATRA USING MAXENT MODELLING APPROACH Saputra, Muhammad Hadi; Sagala, Saut Aritua Hasiholan; Lee, Han Soo
Forum Geografi Vol 33, No 2 (2019): December 2019
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v33i2.9056

Abstract

Styrax sumatrana is the prestigious tree from North Sumatra. The resin which is a product from this tree has high demand and take a role as the primary income for farmer around the forest. However, the climate change along with the land conversion, threatens the species distribution . This paper aims to analyse the variable that contributes to Styrax sumatrana distribution and predict the potential distribution area of the species in North Sumatra Province . Several variables, such as elevation, slope, aspect, climate condition and land use land cover (LULC), were used to analyse the contribution for Styrax sumatrana distribution. The analysis uses the Maximum entropy model to examine the variable contribution for species distribution. The result shows that the mean temperature of the coldest quarter has a higher contribution for species distribution followed by elevation and LULC. The climate condition has a great impact by 28.5% than the other variable. The potential area that is suitable for Styrax sumatrana distribution was 8.91% or around 663,221.94 ha from a total of region.
Analisis Bahaya dan Resiko Bencana Gunungapi Papandayan (Studi Kasus: Kecamatan Cisurupan, Kabupaten Garut) Saut Aritua Hasiholan Sagala; Hadian Idhar Yasaditama
Forum Geografi Vol 26, No 1 (2012): July 2012
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v26i1.5046

Abstract

Risk assessment is an important step to be carried out for disaster management. It provides information for decision makers and communities in pre-disaster, during disaster and post disaster event. Nevertheless, risk assessment in Indonesia, especially on active volcanoes is still limited. This paper presents the risk assessment of Mt. Papandayan (2.665 m), the most active volcano in West Java. The unit of analysis in this study follows the administrative boundaries of village so that the identification can be applied at village level using GIS. Hazard analysis refers to the official hazard map produced by PVMBG while the vulnerability analysis is carried out in 3 sub-analysis, physical vulnerability (7 indicators), social vulnerability (7 indicators), and economic vulnerability. The hazard and vulnerability were overlayed in order to produce the risk which is subsequently made into risk map. The findings indicate that the villages located near and on the direction of the crater have relatively higher risk compared to other villages. The risk map can be incorporated as one of references for spatial planning that integrates disaster mitigation.
Co-Authors Agus Sutanto Andiani Andiani Djoko Santoso Abi Suroso Donald Ganitua Sianturi Fernando Situngkir Hadian Idhar Yasaditama Iwan Fahlevi Lee, Han Soo Novi Puspitasari Praditya Adhitama Ramanditya Wimbardana Saputra, Muhammad Hadi Sulamith Kastl Umar Al Faruq Yasaditama, Hadian Idhar