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Flood vulnerability analysis using geographic information system in the core zone of the Lore Lindu biosphere reserve, Indonesia Suni, Muhammad Adam; Rahmawati, Ani; Muis, Hasriani; Maarif, Fadjri; Baharuddin, Rhamdhani Fitrah
Journal of Degraded and Mining Lands Management Vol. 12 No. 1 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.121.6887

Abstract

Floods are caused by the accumulation of several factors, such as global warming, climatological characteristics, hydrology, and physical conditions of an area. The purpose of this study was to map the level of flood vulnerability in the core zone of the Lore Lindu Biosphere Reserve using geographic information system (GIS) based spatial analysis with scoring and overlay. The research parameters consisted of rainfall, elevation, slope, soil type, land cover, and distance from the river. This research was conducted in the core zone divided into 13 subdistricts and 2 regencies. The results of the classification of flood vulnerability levels are divided into 4 (four) categories: not prone, low vulnerability, moderate vulnerability, and high vulnerability. The results of the analysis show that the core zone of the Lore Lindu biosphere reserve is dominated by a non-hazardous site with an area of 145,018’28 ha (67.23%), a low vulnerability zone of 65,430.10 ha (30.33%), a moderate vulnerability zone of 5,025.29 ha (2.33%), and a high vulnerability zone of 245.99 ha (0.11). Areas with a high level of vulnerability are at low elevations with flat to gentle slopes. Most land use is dominated by water, mining, and open land without vegetation and is located around rivers.
Pemetaan Tingkat Kerapatan Vegetasi di Kota Palu Menggunakan Citra Sentinel 2A Suni, Muhammad Adam; Fitra, Ramad Arya; Masserang, Busranuddin Daeng; Pritta, Birgitta Karlina
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 2 No. 1 (2023): Jurnal Pengabdian Masyarakata dan Riset Pendidikan Volume 2 Nomor 1 Tahun 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v2i1.179

Abstract

The background for making this map in community service is the need for data on the area of vegetated areas and the level of vegetation density by various parties, both from government agencies, research and education needs, and non-government agencies. Meanwhile regional development and increase in residential land are increasing from year to year. To find out the area of vegetated areas and the level of density of vegetation effectively and efficiently, mapping can be done using remote sensing. The purpose of this community service is to find out the area of vegetated areas and the level of vegetation density in Palu City in 2022. This community service is a descriptive research. The area of the vegetated area and the level of vegetation density were obtained through remote sensing using the Normalized Difference Vegetation Index (NDVI) method utilizing Sentinel 2-A imagery and direct field surveys. The result of this community service is a map of the level of vegetation density in the city of Palu in 2022, which shows that there are 4 (four) classes of vegetation density, namely the non-vegetation class of 3,602.77 Ha. Rare vegetation class 3,649.22 Ha. Medium vegetation class 6,539.65 Ha. Dense vegetation class 24,175.91 Ha
Spatial Analysis of Changes in Normalization Differences Vegetation Index in Protected Forest Areas of South Lore District, Poso Regency Suni, Muhammad Adam; Basoka, Muhammad Darmawan; Rafiq, Muhammad; Umar, Mohamad Fahrul Himalaya; Muis, Hasriani; Baharuddin, Rhamdhani Fitrah; Agusman, Agusman
Journal of Information System and Informatics Vol 5 No 4 (2023): Journal of Information Systems and Informatics
Publisher : Universitas Bina Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v5i4.577

Abstract

Detection of changes in vegetation density generally uses the vegetation index parameter. The value of the vegetation index can provide information on the proportion of vegetation cover, live plant index, plant biomass, cooling capacity, and estimation of carbon dioxide absorption. This study aims to analyze changes in the level of vegetation density using Sentinel 2-A imagery in the protected forest area of South Lore District. This study used the method of calculating the Normalized Difference Vegetation Index (NDVI) to identify changes in density over 5 years. The results of the NDVI analysis are the largest in the range of -0.92960 to 0.871725. The vegetation density class in the Protected Forest Area of South Lore District in 2017 is in the dense class with an area of 15,322.24 Ha or around 47.66%, while the smallest in the non-vegetation class, which is 103.11 Ha or 0.32%, while the largest vegetation density class is in the Protected Forest Area of South Lore District in 2022, namely in the medium/quite dense class with an area of 19,948.18 Ha or 62.01% while the smallest in the non-vegetation class of 219.17 Ha or 0.68%. The largest increase in area was in the moderate/quite dense class of 4,892.33 Ha or 15.20% while the largest decrease in area was in the dense class with an area of 6,651.16 Ha or 20.67% of the total area of the Protected Forest Area of South Lore District.