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All Journal Journal of Sylva Indonesiana Jurnal Pengabdian Masyarakat Multidisiplin Terra: Journal of Forest Management
Ulil Amri Daulay
Universitas Satya Terra Bhinneka
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Disaster Mitigation Based on Regional Vulnerability Analysis of South Labuhanbatu Regency for Risk Reduction Planning Ulil Amri Daulay; Agus Purwoko; Prawidya Hariani RS; Ridwan; Rizky Wahyudi; Iskandar; Rizky Adrian
TERRA: Journal of Forest Management Vol. 2 No. 1 (2026): January 2026
Publisher : Universitas Satya Terra Bhinneka

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Abstract

Disaster mitigation is a systematic effort to reduce disaster risks through pre-disaster planning, vulnerability reduction, and capacity building to support sustainable development. In South Labuhanbatu Regency, geographic conditions, climate change, and land-use dynamics, particularly lowlands, dense river networks, high rainfall, and extensive oil palm plantations, increase the risk of flooding and environmental degradation. Therefore, mitigation efforts must be specific, based on a vulnerability analysis that integrates environmental aspects into spatial planning strategies. Data analysis was conducted spatially using GIS through map digitization and georeferencing, land use classification, and overlay analysis between physical conditions of the region, land use, and disaster potential. Spatial analysis shows that is dominated by flood hazards, covering 34,224.8 Ha (9.59%) of the total area, mainly in Kampung Rakyat, Kotapinang, Sungai Kanan, and Torgamba, while Silangkitang is not flood-prone. Flood vulnerability is closely related to lowland areas along the Barumun Watershed, where peatland conditions and oil palm–dominated land use reduce infiltration and increase surface runoff. Landslide hazards are limited to Torgamba and Sungai Kanan due to hilly terrain and land clearing, while active fault intensity varies spatially, with the highest levels in Silangkitang, highlighting the importance of integrating geological risk into spatial planning.
PENANAMAN MANGROVE DALAM PERBAIKAN EKOSISTEM DAN LINGKUNGAN HUTAN MANGROVE DI DESA NELAYAN SEBERANG BELAWAN Aulia Putra Daulay; Sahat Raja Marigo Girsang; Ratna Sari; Ulil Amri Daulay
Jurnal Pengabdian Masyarakat Multidisiplin Vol 9 No 2 (2026): Februari
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/jpm.v9i2.7271

Abstract

The mangrove forest in Nelayan Seberang Medan Belawan Village is fully utilized by the community. Currently, the condition of the mangrove forest has been damaged due to excessive encroachment and conversion into fish ponds, which has destroyed the mangrove ecosystem. The objective of this community service activity is to restore the mangrove ecosystem by replanting mangrove species in the mangrove ecosystem, as well as to raise awareness among the Seberang Fishing Village community about the importance of mangrove forests in providing ecological, economic, and social benefits to coastal communities. The methods used in this activity included community participation in restoring the mangrove ecosystem, caring for the mangrove forest ecosystem by conducting continuous monitoring to reduce damage to the mangrove forest, and planting Rhizophora apiculata as a fast-growing species to accelerate the restoration of the mangrove ecosystem. The results of this activity were the restoration of the mangrove ecosystem by planting 500 seedlings in locations that had been cleared due to logging. community participation in planting as a form of preserving the mangrove forest ecosystem for the ecological and economic interests of coastal communities. The community is also expected to maintain the mangrove species that have been planted at these locations and replace dead mangrove species with new seedlings. The conclusion of this activity is that mangrove forest planting aims to improve the condition of mangrove forests in Nelayan Seberang Village that have been damaged and to raise awareness among the community to protect the environment by planting trees, thereby reducing the percentage of erosion and disasters that can damage the Nelayan Seberang Village area.  
Physiological Response of Sumatran Elephant (Elephas Maximus Sumatranus) to Land Cover Changes at TWA Holiday Resort, North Sumatra Ulil Amri Daulay; Bilqis Nur Mustofa; Agus Purwoko; Farhan Reza Pahlevi; Ratna Sari; Ridwan
Journal of Sylva Indonesiana Vol. 9 No. 02 (2026): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v9i02.25779

Abstract

Land cover changes due to anthropogenic activities are one of the main threats to the sustainability of the Sumatran Elephant (Elephas maximus sumatranus) habitat. This study aims to analyze the relationship between the physiological conditions of Sumatran Elephants and land cover changes in the North Sumatra Holiday Resort Nature Tourism Park (Indonesian term: Taman Wisata Alam/TWA). The study was conducted on three individual elephants, namely Nurhalimah, Sudarwanto, and Merry. The physiological data observed included age, body temperature, body condition, appetite, fecal condition, rest duration, and stress levels. Land cover data were obtained through the interpretation of satellite imagery and secondary data from the area. Data analysis was carried out using multiple linear regression, beginning with classical assumption tests and hypothesis tests. The results of the study indicate that during the period 1990–2024, there was a very significant change in land cover, where secondary dryland forests were almost entirely converted into plantations, settlements, and other non-forest lands. The results of the F test indicate that all physiological variables simultaneously had a significant effect on land cover changes (p<0.05). The Adjusted R Square value of 0.652 indicates that the observed physiological variables can explain 65.2% of the variation in land cover change. Partially, only stress levels significantly influence land cover change with a significance value of 0.003 and a beta coefficient of 1.120. These results indicate that stress levels are the most sensitive physiological indicator in responding to habitat changes. Therefore, conservation efforts for Sumatran Elephants at the TWA Holiday Resort need to be directed at habitat restoration and reducing anthropogenic pressures to maintain the welfare and sustainability of the elephant population in the area.
Co-Authors Agus Purwoko Aulia Putra Daulay Bilqis Nur Mustofa Dayun Ifanda Farhan Reza Pahlevi Iskandar Muhammad Yusuf Ibrahim Prawidya Hariani RS Ratna Sari Ridwan Ridwan Rizky Adrian Rizky Wahyudi Rizky Wahyudi Sahat Raja Marigo Girsang Sundari Marsudi Utomo, Budi