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I Gde Adi Suryawan Wangiyana
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jurnalsilvasamalas@gmail.com
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+6281907005728
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Jurnal Silva Samalas: Journal of Forestry and Plant Science
Published by Universitas Pendidikan Mandalika
ISSN : 26216779     EISSN : 27767175     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Jurnal Silva Samalas intended as a medium for communication between researchers about their work. This journal accepted scientific papers on various topics including forestry, agriculture, botany, and environmental science. Jurnal Silva Samalas also accepted various types of scientific paper including research paper, systematic reviews, and short communication.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 161 Documents
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MORPHOLOGICAL VARIATION OF Cyrtophyllum fragrans (Roxb.) AMONG FOUR HABITAT TYPES IN JAMBI PROVINCE: A MULTIVARIATE APPROACH Fawwaz Dinanty; Hamzah; Anisatul Farikhah; Dian Nisya; Hafizah Nahlunnisa; Doani Anggi Safira
Jurnal Silva Samalas Vol. 9 No. 1 (2026): Juni 2026
Publisher : Universitas Pendidikan Mandalika

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Abstract

Cyrtophyllum fragrans (Roxb.) Don is a high-value hardwood tree whose population in Jambi Province is threatened by habitat fragmentation and land conversion, yet morphological data based on local populations remain unavailable. This study examined quantitative and qualitative morphological variation of C. fragrans from four locations in Jambi Province representing different ecological conditions, and identified phenotypic clustering patterns using a multivariate approach. Observations were conducted on 39 individual trees; quantitative characters included tree height (TH), diameter at breast height (DBH), leaf length (LL), leaf width (LW), and petiole length (PL), while qualitative characters included lamina shape, apex, base, and margin. Data were analyzed using Principal Component Analysis (PCA) and Hierarchical Clustering on Principal Components (HCPC) with Ward's method and Euclidean distance. All five quantitative characters (TH, DBH, LL, LW, and PL) differed significantly among locations: leaf dimension characters (LL, LW, PL) responded most strongly to light intensity gradients, while tree size characters (TH, DBH) reflected cumulative growth history and habitat fragmentation effects. PCA identified two independent phenotypic gradients explaining 80.4% of total variance: PC1 (45.7%) captured the leaf dimension gradient as a plastic response to light intensity, and PC2 (34.7%) captured the tree size gradient recording long-term growth accumulation. HCPC produced four clusters with cross-site composition: K1 (small leaves, full sun), K2 (suppressed axial growth), K3 (very large DBH, cumulative growth), and K4 (large leaves, shaded). Qualitative leaf characters (simple opposite leaves, elliptic lamina, acuminate to caudate apex, cuneate base, entire margin, and pinnate venation) were consistent with the species description of C. fragrans across all four accessions and showed no meaningful variation among locations, confirming their stability as species-level taxonomic markers. Site ecological conditions, not geographic origin, were the primary determinant of morphological phenotype in C. fragrans, with implications for individual-based selection of mother trees in breeding programs rather than location-based selection.
SPATIAL ANALYSIS OF SUSTAINABLE MANGROVE TOURISM IN THE SERAMBI DELI COASTAL AREA, PANTAI LABU DISTRICT, NORTH SUMATRA Aulia Putra Daulay; Ratna Sari
Jurnal Silva Samalas Vol. 9 No. 1 (2026): Juni 2026
Publisher : Universitas Pendidikan Mandalika

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Abstract

Mangrove ecotourism is largely unknown to the general public due to limited development and insufficient assessment of its suitability, especially in North Sumatra. Spatial analysis in determining the suitability of coastal areas is rarely conducted. This spatial analysis uses Geographic Information System (GIS) applications in determining the management model for mangrove forest areas. The purpose of this study is to determine how to manage and develop mangrove ecotourism through spatial analysis based on ecotourism-related parameters. This study was conducted from September to December 2025. The research methodology included an analysis of the suitability matrix of mangrove forests for ecotourism, a SWOT analysis to identify the strengths, weaknesses, and challenges in the suitability of land for ecotourism, and remote sensing analysis using ArcGIS 10.8 with Band 8 and Band 4 for NDVI. The results obtained were an Ecotourism Suitability Index value of 71.05%, which is classified as conditionally suitable, a SWOT analysis in the form of ecotourism development for promotion through social media and support for accessibility and ecotourism infrastructure, and remote sensing analysis with an average NDVI value of 0.36, which is classified as high density. The conclusion of this study is that the mangrove forest at Serambi Deli Beach is suitable for ecotourism development, but several conditions must be improved, including mangrove species diversity, mangrove density, and infrastructure to support ecotourism activities.
POLICY STRATEGY DIRECTIONS FOR MANGROVE ECOSYSTEM GOVERNANCE IN CLIMATE CHANGE MITIGATION EFFORTS AT MENIPO NATURE TOURISM PARK Habel Martin Nopemnanu; Alfred O.M Dima; Lusia Sulo Marimpan; Mitha Rabiyatul Nufus; Hendra Kurniawan; Sutan Sahala Muda Marpaung
Jurnal Silva Samalas Vol. 9 No. 1 (2026): Juni 2026
Publisher : Universitas Pendidikan Mandalika

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Abstract

Mangrove ecosystem management plays an important role in achieving the Sustainable Development Goals (SDGs), particularly in protecting coastal and marine ecosystems from environmental degradation. Mangrove forests also contribute to climate change mitigation as blue carbon ecosystems through their capacity to absorb and store large amounts of carbon. This study aimed to analyze mangrove vegetation community structure, carbon potential, and management strategies for climate change mitigation in Menipo Nature Tourism Park (TWA Menipo), Indonesia. Data were collected using both qualitative and quantitative methods. The study identified 15 mangrove species, with Rhizophora mucronata, Bruguiera gymnorrhiza, Rhizophora stylosa, and Bruguiera parviflora as the dominant species. The vegetation exhibited a moderate diversity index, low evenness, and low species richness. Total biomass was estimated at 1,959.27 t/ha, while carbon stock and CO₂ sequestration potential reached 920.86 t/ha and 3,376.48 t/ha, respectively, highlighting the significant ecological role of mangroves as carbon sinks. The main driving factors influencing management direction were the sustainability of mangrove rehabilitation programs and the level of ecosystem degradation. Key stakeholders included Mangrove Farmer Groups, Non-Governmental Organizations (NGOs), the East Nusa Tenggara Natural Resources Conservation Agency (BKSDA NTT), village governments, and traditional leaders. Recommended management strategies include conducting biophysical assessments prior to rehabilitation, strengthening customary regulations, empowering local communities through social forestry programs, allowing sustainable harvesting of fishery resources without damaging mangrove habitats, providing designated boat-parking areas, and developing priority zoning maps for rehabilitation. These measures are expected to support sustainable mangrove conservation and enhance climate change mitigation efforts.
ANALYSIS OF PALM OIL BIOMASS UTILIZATION FOR RENEWABLE ENERGY GENERATION AT PTPN IV DOLOK ILIR Fitri Annisa Alfi Siregar; Zulham Effendi
Jurnal Silva Samalas Vol. 9 No. 1 (2026): Juni 2026
Publisher : Universitas Pendidikan Mandalika

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Abstract

This study analyzes the potential and utilization of palm oil biomass as a renewable energy source in the cogeneration system of PTPN IV Dolok Ilir, North Sumatra. Palm oil processing generates three primary biomass residue streams: empty fruit bunches (EFB, 22-23% w/w of FFB), mesocarp fiber (12-13% w/w of FFB), and palm shells (5-6% w/w of FFB). The installed cogeneration capacity is 2,000 kW; however, operational observations in August 2025 recorded an average actual power output of 746 kW (37.3% of installed capacity). Turbine isentropic efficiency averaged approximately 55.81%, compared to a design value of 75.00%, indicating a gap of 19.19 percentage points. Steam mass flow rates averaged 42.4 t/h against a design value of 64.9 t/h. EFB, the largest residue stream by weight, remains underutilized as cogeneration fuel. The findings highlight significant opportunities to enhance biomass-to-energy conversion through maintenance optimization and EFB valorization strategies.
SWOT ANALYSIS OF ECOTOURISM DESTINATION OF OESINA BEACH: CHALLENGES, OPPORTUNITIES, DEVELOPMENT STRATEGIES Muhamad Soimin
Jurnal Silva Samalas Vol. 6 No. 2 (2023): Desember 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jss.v6i2.10106

Abstract

The abstract Natural heritages and cultural values possessed by the East Nusa Tenggara region have the potential to be developed towards the tourism industry based on sustainable tourism principles in the form of ecotourism. A potential ecotourism destination that occurs in the region is Oesina Beach, the 1 km white sandy beach with a huge marine potential. This ecotourism destination is situated in Lifuleo village. This research is an investigative-descriptive study with an approach of SWOT Analysis (Strength, Weakness, Opportunity, and Threat) combined with IFES (Internal Factor Analysis Strategy) and EFES (External Factor Analysis Strategy). The SWOT analysis reveals: 1) several strengths and opportunities that can be optimized; 2) several weaknesses and threats that can be mitigated by optimization strategies; and 3) several proposed optimization strategies based on S-O (strength to optimize opportunity), W-O (opportunity to minimize weakness), T-S (strength to mitigate threat), and T-W (effort to address threat and weakness). IFES and EFES analysis indicate that the Oesina ecotourism destination is located in Quadrant I, meaning that the ecotourism destination requires promotion through market development penetration, market penetration, and product development. Following this, all related stakeholders of governments, management, and local-dependent communities; need to build a strong collaboration towards a successful implementation of optimization strategies. The result of this study is expected to be used as a reference for related stakeholders to design and implement a robust strategy to develop the ecotourism destination in the form of a scientific-based policy. This, therefore, will promote more benefits as conservation tools as well as enable the dependent community to gain more socioeconomic advantages.
FOREST HERBAL TEA SHOULD BE PROMOTED IN INDONESIA I Gde Adi Suryawan Wangiyana; I Gusti Agung Ayu Hari Triandini
Jurnal Silva Samalas Vol. 6 No. 2 (2023): Desember 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jss.v6i2.10223

Abstract

Forest herbal tea is made from plants in the forest area. Various types of plants, including trees, shrubs, and herbs, can be sources of forest herbal tea. Most of the forest herbal tea sources are wild plants found in natural forest areas in Indonesia. This means that Indonesia has abundant forest herbal tea resources, which should be promoted. However, the use of raw materials in forest herbal tea products is still limited. This review shows why forest herbal tea products should be promoted in Indonesia in terms of cultivation, standardisation, processing method, economic value, and diversity of products.
MODEL KOMUNIKASI PERUBAHAN SOSIAL DALAM MENDORONG ADOPSI PERILAKU ZERO WASTE PADA MASYARAKAT URBAN DI KOTA SERANG Abdul Malik
Jurnal Silva Samalas Vol. 8 No. 1 (2025): Juni 2025
Publisher : Universitas Pendidikan Mandalika

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Abstract

Rapid urbanization has accelerated waste generation in medium-sized Indonesian cities, including Serang City, Banten Province, which produced approximately 584.83 tonnes of waste per day in 2023, while the reduction rate reached only 0.77 percent. This gap indicates that a purely infrastructural approach to waste management is insufficient without engaging citizens in behavioural change. This study aims to construct a conceptual model of social change communication that can encourage the adoption of zero waste behaviour among the urban population of Serang City. A qualitative descriptive method through library research (desk study) was applied, synthesising secondary data from scientific journals, government reports, and regional regulations published between 2019 and 2024. Data were analysed using an interactive qualitative content-analysis technique consisting of data reduction, data display, and conclusion drawing, informed by diffusion of innovation theory, social marketing, and community-based social marketing. The results indicate that behavioural adoption in Serang is shaped by five interrelated communication stages: awareness building, participatory persuasion and education, social engagement through local change agents, institutionalisation through digital incentive systems, and evaluation with public feedback. The proposed model emphasises the integration of local socio-cultural values, such as mutual cooperation (gotong royong), with digital waste-bank incentives to sustain behavioural change. This model offers a contextual communication framework that local governments and environmental agencies can adapt to strengthen community participation in sustainable urban waste management.
KONSTRUKSI NARASI EKOLOGIS DAN KOLEKTIVITAS LOKAL SEBAGAI PENGGERAK PERUBAHAN SOSIAL LINGKUNGAN SUKU BADUY Abdul Malik
Jurnal Silva Samalas Vol. 6 No. 2 (2023): Desember 2023
Publisher : Universitas Pendidikan Mandalika

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Abstract

Human civilization, especially with its exploitative and unsustainable development activities, has made environmental issues an unavoidable discussion, including in Indonesia. Amid the ecological crisis, the Baduy indigenous community in Kanekes Village, Lebak Regency, Banten, maintains a distinctive way of relating to nature that is inseparable from their oral traditions and customary narratives. This study aims to analyze how ecological narratives are constructed within the Baduy community and how local collectivity functions as an agent driving environmental social change, both within the community and beyond it. This research employs a descriptive qualitative method through a literature review and narrative discourse analysis of scientific articles, reports, and documentation on the Baduy community published between 2019 and 2024. Data were analyzed through thematic categorization covering narrative reduction, presentation, and conclusion drawing. The results indicate that Baduy ecological narratives are constructed through the pikukuh (customary law), the three-zone forest classification, and taboo systems that are continuously reproduced through oral tradition and communal ritual. This narrative construction strengthens collective solidarity, which in turn becomes social capital that drives collective action in forest conservation, resistance to exploitative development, and the diffusion of ecological values to the wider public through media exposure. The study concludes that ecological narrative and local collectivity are mutually reinforcing components that position the Baduy not merely as passive holders of local wisdom, but as active agents of environmental social change.
DIGITAL SOCIAL CHANGE COMMUNICATION EFEKTIVITAS KAMPANYE MEDIA SOSIAL DALAM MENDORONG AKSI LINGKUNGAN KOLEKTIF DI KOTA SERANG Abdul Malik
Jurnal Silva Samalas Vol. 7 No. 2 (2024): Desember 2024
Publisher : Universitas Pendidikan Mandalika

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Abstract

The rapid growth of social media use in Indonesia has opened new opportunities for environmental communication to move beyond awareness-raising toward collective action. This study examines the effectiveness of social media campaigns in encouraging collective environmental action among residents of Kota Serang, Banten. Using a sequential explanatory mixed-methods design, data were collected through an online survey of 150 social media users who had been exposed to environmental campaign content (waste management, river conservation, and green open-space advocacy), complemented by in-depth interviews with six campaign organizers and participants. Quantitative data were analyzed using descriptive statistics and multiple regression, while qualitative data were analyzed thematically. Results show that message framing, visual content, and perceived collective efficacy significantly predict participation in offline collective action, whereas the number of likes and shares alone does not guarantee behavioral engagement. Campaigns combining personalized storytelling with clear calls to organized action generated higher participation than those relying solely on informational content. The study concludes that social media campaigns effectively mobilize collective environmental action in Kota Serang when they build a shared identity and sense of collective efficacy, rather than merely achieving broad exposure. These findings contribute to digital social change communication theory and offer practical guidance for environmental communicators and local government.
Analisis Daya Dukung Lingkungan terhadap Pengembangan Wisata Alam Semongkat di Kecamatan Batulanteh Kabupaten Sumbawa M Said Fahrianto; Lalu Sukardi; Endah Wahyuningsih
Jurnal Silva Samalas Vol. 9 No. 2 (2026): Desember 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jss.v9i2.22465

Abstract

The Semongkat Nature Tourism Park (TWA) in Batulanteh Subdistrict, Sumbawa Regency, is a nature conservation area with great potential to be developed into a tourist destination; however, an increase in visitor numbers risks putting pressure on environmental quality if not balanced by an appropriate carrying capacity analysis. This study aims to analyze environmental carrying capacity, assess the feasibility of potential natural tourist attractions (ODTWA), and formulate a development strategy for the Semongkat TWA area. The study employed a combination of quantitative and qualitative methods involving 100 respondents selected using the Slovin formula, including analyses of physical, actual, and effective carrying capacity, an assessment of the feasibility of natural tourist attractions, and a SWOT analysis. The results show that the area’s effective carrying capacity reaches 18,852 tourists/day, far exceeding the actual average daily visitation of only 347–395 tourists equivalent to 1.8–2.1% of the optimal capacity. The ODTWA feasibility index of 78% indicates a “feasible” category, while the area’s internal and external positions fall within the “aggressive growth” quadrant, directing strategies toward strengthening environmental and cultural educational tourism, hygiene and safety protocols, forest rehabilitation, and integrated marketing efforts with the village government. These findings indicate that the Semongkat TWA can still be developed gradually without exceeding its carrying capacity, as long as physical constraints such as slope gradient and soil susceptibility to erosion remain the primary guidelines for development. Substantively, these findings also support the achievement of the Sustainable Development Goals (SDGs), particularly Goal 8, 12, 15 through nature tourism development that remains within the environmental carrying capacity.

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