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All Journal FORESTA IJEMS (Indonesian Journal of Environmental Management and Sustainability) Journal of Sylva Indonesiana Jurnal Silva Tropika BERNAS: Jurnal Pengabdian Kepada Masyarakat Repong Damar: Jurnal Pengabdian Kehutanan dan Lingkungan International Journal of Science and Environment
Samsuri, Samsuri
Universitas Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Education Energy Environmental Science Languange, Linguistic, Communication & Media Mathematics Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Population and Habitat Management Development Strategy in The Tapanuli Orangutan (Pongo tapanuliensis) Conservation Area Perry Muhammad Athoriez, Asep; Samsuri; Purwoko, Agus; Rahmawaty; Rauf, Abdul
Journal of Sylva Indonesiana Vol. 7 No. 02 (2024): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v7i02.12703

Abstract

Tropical forests in Indonesia, which are mega biodiversity countries, have a rich diversity of species, including the Tapanuli orangutan (Pongo tapanuliensis). This species is found in the Batangtoru landscape, mostly in the Other Use Areas (OUA) zone, which can pose a potential threat. The importance of meaningful and long-term local stakeholder engagement. It is necessary to strengthen the management capacity among stakeholders. Therefore, a study of the strategy for developing conservation area management is required. This research aimed to analyze the development and management strategy of conservation areas by related institutions to support the Tapanuli orangutan population and habitat conservation. Despite facing various threats to orangutan conservation, stakeholders still have internal strength. The strategy that must be implemented is to use strength to take advantage of long-term opportunities through a diversification strategy
Land Cover Change Dynamics As an Indicator of Deforestation Rate in Gunung Leuser National Park Agus, Rihady; Rahmawaty, Rahmawaty; Alief Aththorick, T.; Samsuri, Samsuri; Nyak, Erwin
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.363

Abstract

Gunung Leuser National Park (GLNP) is one of the most important conservation areas in Indonesia, serving as a habitat for various rare and protected species such as the Sumatran tiger, elephant, rhinoceros, and orangutan. Nevertheless, this area faces serious threats from deforestation caused by human activities, including illegal logging, agricultural expansion, and infrastructure development. This study aims to analyze the rate of deforestation occurring in GLNP from 2008 to 2023, to examine land cover changes in the park up to 2033, and to assess community attitudes, perceptions, and participation related to deforestation in the GLNP area. The methods employed include multi-temporal satellite image analysis (Landsat 5 and Landsat 8) using supervised classification through Google Earth Engine (GEE) and Geographic Information System (GIS) tools. Data accuracy was evaluated using ground truth validation, along with an assessment of community perceptions and participation regarding land cover changes. The results indicate that during the study period, forest area decreased by approximately 18,822.71 hectares (2.38%), accompanied by an increase in shrubland and other non-forest land covers, indicating gradual land conversion. The dominant factors driving deforestation in GLNP include proximity to roads and settlements. Future deforestation rates were predicted using a Cellular Automata–based spatial modeling approach, which estimates land conversion patterns in the absence of mitigation measures. Deforestation in the GLNP area is closely linked to the role of surrounding communities; the findings reveal that local communities are generally less actively involved and less willing to contribute to conservation efforts in GLNP. This study provides important insights for conservation planning and sustainable land-use policy formulation in Gunung Leuser National Park.
Analysis of Vegetation Density and Distribution of Green Belts in the City Center of Medan Using the Normalized Difference Vegetation Index Hidayat, Nur; Anita Zaitunah; Nelly Anna; Samsuri; Evalina Herawati; Alfan Gunawan Ahmad
Journal of Sylva Indonesiana Vol. 9 No. 01 (2026): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v9i01.23249

Abstract

This study evaluates the distribution and condition of vegetation within the green belts of Medan City Center in 2025 by employing the Normalized Difference Vegetation Index (NDVI) derived from Sentinel-2 satellite imagery, supplemented by field verification through purposive sampling. The analysis reveals that the findings indicate that non-vegetated category (NDVI < 0.1) dominated, encompassing 12,240.98 hectares or approximately 43.98%, whereas the dense vegetation class (NDVI 0.3–0.4) represents the smallest portion, covering only 3,009.70 hectares (10.81%) of the total area.Vegetation index values within these urban corridors range from a maximum of 0.55 to a minimum of -0.04, where lower values are predominantly associated with built-up areas and open land, while higher values are restricted to riparian buffers and fragmented green spaces. Spatial pattern analysis, utilizing a 500-meter buffer, highlights significant disparities in vegetation distribution and underscores the mounting pressure of urbanization, which has compromised the ecological functions of the city’s green infrastructure. Consequently, these findings emphasize the critical need for strategic planning and robust policy interventions to revitalize green open spaces as essential ecological infrastructure; therefore, the primary recommendation focuses on expanding green belt vegetation through intensification and protection efforts to ensure that ecological, social, and aesthetic functions are maintained sustainably within the Medan City Center.
Co-Authors Abda Abda Abdul Rauf Agus Purwoko Agus, Rihady Ahmad Baiquni Rangkuti Alfan Gunawan Ahmad Alfan Gunawan Ahmad Alief Aththorick, T. Anggie Yohanna Mandalahi Anita Zaitunah Anita Zaitunah Anita Zaitunah Anita Zaitunah Anita Zaitunah Anita Zaitunah Apri Heri Iswanto Arida Susilowati Iswanto Bejo Slamet Deni Elfiati Evalina Herawati Febrianti Sitorus Hafizah Arinah Harisyah Manurung I Nengah Surati Jaya Iwan RISNASARI Jajang Sutiawan Lailan Syaufina Luthfi Hakim Mariah Ulfa Moehar Maraghiy Harahap Muhdi Muhdi Nelly Anna Novita Anggraini Nur Hidayat Nyak, Erwin O K Hasnanda Syahputra Oding Affandi OK Hasnanda Syahputra Okber Rajagukguk Perry Muhammad Athoriez, Asep Purwoko, Agus Rahmanta Rahmanta Rahmanta Rahmanta Rahmawaty Rahmawaty Rahmawaty, Rahmawaty Rudi Hartono Siti Khadijah Hidayati Nasution Siti Latifah Suri Fadhilla Tito Sucipto