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SUTOPO
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Spatial Data Integration and Validation for Peatland Fire Risk Mapping in Ogan Ilir District, South Sumatra Province Sutopo; Saputra, Agus Dwi; Irfan, Muhammad; Mardiansyah, Wijaya; Iskandar, Iskhaq
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.288-297

Abstract

This study aims to map peatland fire vulnerability in Ogan Ilir District, South Sumatra, using a GIS-based spatial data integration approach. The analysis integrates biophysical factors, including soil type, land cover, topography, and rainfall, with anthropogenic variables such as accessibility to roads, settlements, and rivers. A multi-criteria scoring and weighting method was applied to generate the vulnerability map, which was validated using hotspot data from 2019 to 2024. Previous studies in Ogan Ilir primarily focused on fire-potential mapping using simple scoring and overlay techniques without standardized validation. To address this limitation, this study adopts the official methodology outlined in Technical Guidelines No. P.6/PSKL/SET/KUM.1/5/2020 issued by the Ministry of Environment and Forestry and incorporates fire spot data from the Regional Disaster Management Agency (BPBD) for validation. Results show that high-vulnerability areas (Score 3–4) dominate the district, covering 222,855.3 hectares or 90.7% of the total mapped area. Validation indicates that 83.8% of actual hotspots occur within these zones, supported by a kappa accuracy value of 0.8628, reflecting strong model reliability. Key factors influencing vulnerability include land cover dominated by shrubs, swamps, and plantations such as oil palm and rubber; the predominance of Hemic Organosol soils; and low rainfall, especially in southern areas. These findings align with studies across Sumatra highlighting the influence of drained vegetation, accessibility, and human activities on peatland fire susceptibility. Overall, this study provides essential spatial information to support targeted peatland fire mitigation, including enhanced monitoring, strict no-burn policies, and improved water-management practices to maintain sustainable peat moisture.
PRELIMINARY STUDY: FEEDING ECOLOGY AND DAILY ACTIVITY OF THREE COLORED LANGUR (Presbytis chrysomelas ssp cruciger Thomas, 1892) IN DANAU SENTARUM NATIONAL PARK Santoso, Nyoto; Sutopo; Meo, Lorenzo Elton; Fauziah, Natasya Nurul; Diva, Alfatheya Margwita
BIOTROPIA Vol. 30 No. 2 (2023): BIOTROPIA Vol. 30 No. 2 August 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.2.1850

Abstract

Three colored langur (Presbytis chrysomelas ssp cruciger Thomas, 1892) is a primate that has been recognized as a critically endangered species in accordance with the International Union for Conservation of Nature, however still not protected and lacks substantial information about the bio-ecology of their natural habitat. The habitat plays a determining factor not only in space utilization but also the daily activities of the three colored langurs (P c cruciger). The aim of this preliminary study is to collect information regarding their habitat characteristic, feed species, daily activity, and canopy stratum utilization. This research was conducted between July and August of 2021 at Bukit Semujan, Lupak Mawang Resort, Danau Sentarum National Park. The method implemented was to collect the habitat characteristic by plot samples, and their daily activity data by scan sampling with consecutive recording. The study demonstrated that langur inhabited both primary as well as mixed forests (swamp, cultivation land, and secondary forest). There were 27 species as feeds of langurs and the most preferred types of feed are Gita susu (Willughbeia coriacea), Merepat (unidentified), and Karet (Hevea brasiliensis). The most preferred feed compositions consisted of leaves (50%), fruits (30%), and seeds (20%). The most frequently utilized stratum for activities was stratum C (70,49%) and B (27.87%). The highest daily activities were categorized into three parts of time, the morning was dominated by social (44,26%), the afternoon was dominated by rest (59,7 7%), and the evening was dominated by social (73,68%). The highest social activities shown by three colored langurs were agonistic (48,48%), followed by vocalization (39,39%), playing (10,61%), exploring (1,52%), and sexual (0%).
Co-Authors Abdul Aziz Nugroho Achmad Syamsudin Aditia Putra Alandi Afif Zaerofi Agus Dwi Saputra, Agus Dwi Ahmad Sobihul Hadi Ahsanul Fakhr, Ardani Ainur Rofiq Bramastyo, R.M Chusnul Khotimah Diva, Alfatheya Margwita Duroril Fahmi Dwi Rokhmatin Elly Yuniar Nitawati Enny Istanti Farih Kurniawan Fauziah, Natasya Nurul Haidar, Abdullah Hary Suswanto Henny Ekana Chrisnawati Heri Wibowo Ida Arodatul Jannah Iskhaq Iskandar Ivan Kurnia Jazuli, Iwan Jiddan Gamal Qondas Komang Abri Perwira Jaya Artama Laksono Trisnantoro Luh Sukariasih Lusi Rachmiazasi Masduki, Lusi M u h i y i d i n Maisyaroh, Delilah Nur Meo, Lorenzo Elton Mohammed Abdalraheem Muhammad Habibur Rohman Muhammad Ibnu Shodiqin Muhammad Imawan Badranaya Muhammad Irfan Muhammad Khoirul Ngarifin Musbikin Muzzammil Novianti, Idha Nur Hendrasto Nurul Iman Nyoto Santoso Panre, Andi Marwanti Parno Perdhana, Reza Dwiputra Pusvyta Sari Putri Galuh Ningtiaz Riskiyanto, Aldy Rohmatillah, Arman Ruchan Sanusi Sasongko, Beni Tri Septianto Budi Pranata Supriana, Edi Supriyono Koes Handayanto Virda Hesy Lutviana Saputri Wicaksono, Satriaagung Widowati, Iris Prima Wijaya Mardiansyah, Wijaya Zakiyatul Abidah Zulfa Nabila Efendi