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INDONESIA
Jurnal Sylva Lestari
Published by Universitas Lampung
ISSN : 23390913     EISSN : 25495747     DOI : https://doi.org/10.23960
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology
Jurnal Sylva Lestari (JSL) [P-ISSN 2339-0913 | E-ISSN 2549-5747] publishes original research articles related to all aspects of forestry and environmental sciences which includes, but not limited to the following topics: forest and natural resources management, biodiversity conservation and management, wood science and timber technology, agroforestry and social forestry, forest products and services, and socio-economics of natural resources. It is primarily a medium for disseminating original theoretical and experimental researches, as well as technical reviews. This journal issues one volume annually consist of three issues that delivered every January, May, and September.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 315 Documents
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Diversity, Evenness, and Dominance Index of Amphibians in Lowland Rain Forest: A Case of Anura Ordo in Way Kambas National Park, Indonesia Dewi, Bainah Sari; Zania, Azalia; Damayanti, Evi; Kuswandono; Hilmanto, Rudi
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.734

Abstract

Amphibian is a vertebrate animal whose life is always associated with water. Anura ordo has the most extensive spread in Indonesia. A study on amphibians in Way Kambas National Park has never been conducted. Therefore, the purpose of this research was to find out the diversity, evenness, dominance, temperature, and humidity of three various habitats of amphibians of Anura ordo in Rawa Bunder National Park Management Resort (RPTN Rawa Bunder), Way Kambas National Park, Indonesia. Amphibian data was collected using the visual encounter survey and line transect methods. The results of this research discovered amphibians in 6 families, which consisted of 13 species of amphibians based on observations in three different habitat types. The Shannon-Wiener diversity index (H') was categorized as moderate with the H' of 1.91–2.27. The evenness index (E) was considered stable, ranging between 0.87–0.91. The dominant index (D) falls into the low dominance group, with the D value ranging between 0.13–0.19. This shows that no dominant species is present. Keywords: Anura, amphibians, biodiversity, predominance, Way Kambas National Park
Potential Use of Shorea leprosula for Rehabilitation of Degraded Tropical Production Forest Ecosystems Attarik, Nuriskia; Pamoengkas, Prijanto; Rachmat, Henti Hendalastuti; Susilowati, Arida
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.861

Abstract

The diverse forests in Indonesia require proper management to preserve their delicate ecosystems. Limited production forests (HPT) are prone to damage and require careful rehabilitation to restore them to their original state. Native tree species such as Shorea leprosula are essential for the success of land and forest rehabilitation in HPT areas. This study aimed to assess the potential of S. leprosula species for HPT rehabilitation by examining its growth in the Gunung Dahu Research Forest (GDRF) by measuring the percentage of live plants, tree growth, and soil improvements under S. leprosula stand in sloping land. The results showed that S. leprosula had fast (1.25 cm/year) to very fast (1.79 cm/year) diameter growth, a dense canopy cover with a leaf area index of 2.88, and improved soil physical (soil moisture of 55.54%, topsoil thickness of 6.2 cm, and litter thickness of 16 cm) and chemical properties (pH of 5.2, soil organic carbon of 3.85, total nitrogen of 0.3, carbon-to-nitrogen ratio of 12.8, available phosphorus of 35.3, and exchangeable potassium of 0.76). Therefore, the successful rehabilitation of S. leprosula in GDRF indicates that it can potentially rehabilitate other HPT areas with similar environmental and site conditions. Keywords: Dipterocarpaceae, fast growing, Gunung Dahu Research Forest, limited production forest, land slope
Accelerating the Height Increase of Mersawa (Anisoptera marginata) Seedlings through Inundation Height with and without Water Treatments Achmad, Basir; Faisal; Suhartati
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.871

Abstract

Deforestation on peatlands in Indonesia has become an important issue. To restore the peatland condition, planting native tree species such as mersawa (Anisoptera marginata) is required. One of the problems with planting is the frequent occurrence of inundation at planting sites. The study aimed to analyze the inundation height, which accelerated the height increase of mersawa seedlings in acid or neutral water conditions. The method used was experimental research with a factorial completely randomized design. Factors studied were inundation height, consisting of without inundation, inundation at polybag height, inundation between the tips of the polybags and the apices of the plants, and inundation reaching the apices of the plants. The water composition consisted of peat swamp water, peat swamp water mixed with boiler ash from palm oil mill, and peat swamp water mixed with dolomite lime. The treatment of inundation between the tips of the polybags and the apices of the plants led to the highest height growth, while the lowest were the seedlings without inundation. The interaction between the inundation height and the water composition had a survival percentage of 100%, while the seedlings inundated up to the seedling apices with water treatments had a survival rate of 16%. Keywords: Anisoptera marginata, inundation, peat swamp water, seedling growth
Land Productivity and Land Equivalent Ratio of Agroforestry System in Marena Customary Forest, Enrekang Regency, South Sulawesi Province, Indonesia Samrin, Samsul; Millang, Syamsuddin; Ridwan; Daud, M
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.877

Abstract

Applying agroforestry system in the customary forest area plays a significant role in increasing the productivity of the community’s land because it will increase the economic value and welfare of the customary community. This study aims to analyze the agroforestry system’s land productivity and land equivalent ratio in the Marena Customary Forest (MCF) area, Enrekang Regency. This research used a survey method involving observation, questionnaires, and interviews with sample respondents who owned land and applied agroforestry systems in the MCF. Data obtained from interviews and field observations were then analyzed descriptively. The study revealed that applying agroforestry systems in the community-managed MCF can increase land productivity, showing the value of land productivity of IDR 20,512,208/ha/year. The agroforestry system’s land equivalent ratio (LER) amounted to 2.34. This shows that applying the agroforestry system is considered capable of increasing land productivity and the income and welfare of the indigenous people of Marena. Keywords: agroforestry, customary forest, land equivalent ratio, land productivity
Interactive Effect of Fertilization and Biochar on the Growth of Juniperus scopulorum under Various Shading and Irrigation Conditions Rahman, Sk Abidur; Lee, Hyun Ju; Carayugan, Mark Bryan; Wijaya, Bangun Adi; Youn, Woo Bin; Yeo, Jong Chan; Park, Sang Hyun; Kong, Ye Jin; Kim, Hyung Won; Carvalho, Julia Inacio; Latt, Myo Min; Hintural, Wencelito Palis; An, Ji Young; Park, Byung Bae
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.902

Abstract

The global demand for landscape trees has been amplified with the increasing anthropogenic activity. South Korea has also witnessed a surge in demand for landscape plants, among others, Juniperus scopulorum gaining popularity for its ecological, economic, adaptability, and management attributes. However, the optimum management practice for high-quality Juniperus seedling production in South Korea remains unknown. This research was conducted on the one-to-two-years-old two cultivars of J. scopulorum, namely Blue Angel and Blue Heaven seedlings, to investigate the combined impacts of varying fertilizer concentrations (0 ppm, 150 ppm, 300 ppm) and biochar content (0% and 20%) under contrasting shading intensities (0%, 35%, 55%) and irrigation levels (200 ml, 400 ml, 800 ml). The study revealed that biochar and fertilizer amendment significantly (p < 0.01 and p < 0.05) enhanced the height and root collar diameter growth in Blue Angel and Blue Heaven in light shade intensity (0–35%) and higher irrigation (400–800 ml) conditions. Similarly, seedlings planted in 20% biochar and 300 ppm fertilizer yielded higher foliar, stem, and root biomass in low shade and higher irrigation conditions. The amount of shade and irrigation and their interactions significantly affected the morphological growth of seedlings for both cultivars, causing positive interaction with soil amendment (biochar and fertilizer application). These findings suggest that efficient seedling production of J. scopulorum management should focus primarily on light shading and moderate irrigation under biochar and higher fertilizer application. The research contributes valuable insights toward optimizing management practices and reducing costs associated with J. scopulorum seedling production in the region. Keywords: biochar, fertilizer, irrigation, Juniperus scopulorum, shading
Clustering Residents’ Attitudes Toward Human-Wildlife Conflict: A Case Study of Neighboring Communities in Paliyan Wildlife Sanctuary, Indonesia Nugroho, Prasetyo; Rahayu Wijayanti Faida, Lies; Wiyono; Yudhistira, Eqia Masdya; Adhisty, Grenadiva Reskan; Hidayah, Mochamad Fikri Nurul
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1119

Abstract

Understanding the heterogeneity of community opinions on human-wildlife conflict is crucial for developing effective mitigation strategies. This research investigates the attitudes and behaviors of residents surrounding Paliyan Wildlife Sanctuary in Indonesia, with a focus on their interactions with the long-tailed macaque (Macaca fascicularis) and the resulting human-wildlife conflict (HWC). By employing the attitude-behavior-context (ABC) framework, the research aims to identify and cluster different community groups by using K-means clustering analysis based on their perceptions of macaques, conservation initiatives, and the management of human-wildlife conflict. We identified distinct clusters of residents, classified by their positive and negative attitudes, degree of support for wildlife conservation initiatives, their perceptions of the sanctuary’s management, and the intensity of conflicts they experience with macaques. The “Conditional Conservation Supporters” exhibit less trust in wildlife managers and comparatively greater support for conservation, while underscoring the necessity for successful conflict resolution. In contrast, the “Disillusioned Critics” display less faith in conservation authorities, limited endorsement of existing management practices, and a pronounced inclination to regulate macaque populations. This research highlights the intricate interaction between human communities and wildlife conservation, highlighting the necessity of understanding local attitudes and behaviors in shaping conservation outcomes. The study provides policymakers and conservation practitioners with essential information for designing more customized and effective interventions that meet both the ecological requirements of wildlife and the social dynamics of local communities. Keywords: forest-based ecosystem services, forest conservation, forest management, Macaca fascicularis, protected areas
Impact of Acacia mangium Willd. Plantation on Species Composition at Bugoy’s Peak, Barangay Bonbon, Butuan City, Philippines Calope, Reymark Moring; Villa, Nathaniel Buron; Palas, Louie Jay Fijo; Corbita, Victor Lobrigas; Casilac Jr, Cornelio Sacquiap; Cossid, Rey Naldoza; Perodes, Mark Angelo Palero
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1153

Abstract

Acacia mangium is a fast-growing tree species widely used in agroforestry and reforestation. However, it has raised concerns due to its potential ecological impacts when introduced outside its native range. This study assessed the effect of A. mangium plantations on species composition and seedling recruitment at Bugoy’s Peak, Barangay Bonbon, Butuan City, Philippines. A total of 13 plots were established using a nested quadrat design to evaluate tree diversity and regeneration patterns. Biodiversity indices and statistical tools were employed to analyze species abundance and composition within the plantation area. Results indicated that A. mangium did not exhibit signs of invasive dominance in the site. On the contrary, the presence of regenerating native species across plots suggests that local conditions may support coexistence and recruitment despite the presence of an introduced species. These findings highlight the importance of site-specific assessments in evaluating the ecological impact of non-native tree species and offer valuable insights for sustainable plantation management in biodiverse landscapes. Keywords: Acacia mangium, diversity assessment, invasive species, seedling regeneration, species composition
Effects of Tree Spacing on the Physical and Mechanical Properties of 24-Year-Old Tectona grandis Wood in Longuza Forest Plantation, Tanzania Samamba, Enos; Mwambusi, Japhet Noah; Chamshama, Shabani Athumani Omari
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1154

Abstract

This study investigated the effects of initial tree spacing on the physical and mechanical properties of 24-year-old teak (Tectona grandis) in Longuza Forest Plantation, Tanzania. Three spacing treatments (2 m × 2 m, 3 m × 3 m, and 4 m × 4 m) were evaluated using a randomized complete block design with three replications. Physical properties assessed included wood density (D) and heartwood percentage (HWP), while mechanical properties comprised modulus of elasticity (MOE), modulus of rupture (MOR), compressive strength parallel to the grain (CSP), shear strength parallel to the grain (SS), and cleavage strength (CLS). Results showed that spacing had no significant effect (p > 0.05) on most physical and mechanical properties, except for SS and tangential CLS at specific height levels. Although non-significant, D, MOE, MOR, CSP, and CLS tended to decrease with increasing spacing, whereas HWP and SS exhibited variable trends. The highest mean values for D (0.57 g/cm³), MOE (8,588 N/mm²), MOR (90.78 N/mm²), CSP (49.41 N/mm²), and CLS (14.83 N/mm) were observed at a 2 m × 2 m spacing, while the lowest values generally occurred at the widest spacing (4 m × 4 m). The findings suggest that closer spacing may enhance wood quality by promoting higher wood density and strength, although differences were not statistically significant. These results provide insights for silvicultural management of T. grandis plantations, suggesting that a 2 m × 2 m spacing may be preferable for optimizing physical and mechanical wood properties at older stand age. Keywords: heartwood percentage, modulus of elasticity, modulus of rupture, spacing, Tectona grandis, wood density
Three Decades of Forest Biomass Estimation in Southeast Asia: A Systematic Review of Field, Remote Sensing, and Machine Learning Approaches (1995–2025) Latifah, Sitti; Gandaseca, Seca; Afifi, Mansur; Prasetyo, Andrie Ridzki; Purnama, Miftahul Irsyadi; Kertalam, Lalu Rizky Aji; Pratama, Roni Putra
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1162

Abstract

Aboveground biomass plays a pivotal role in estimating tropical forest carbon stocks, particularly in Southeast Asia, a region rich in biodiversity but threatened by deforestation and land-use change. This systematic review analyzes 71 peer-reviewed studies published between 1995 and 2025, selected from an initial pool of 8,509 articles. The review aims to evaluate methodological developments and performance across three major approaches: field-based and allometric models, remote sensing including Unmanned Aerial Vehicle (UAV) platforms, and Machine Learning (ML) with data fusion, within key tropical forest countries: Indonesia, Malaysia, and Vietnam. These countries were selected due to their high forest cover, rapid land-use change, and central roles in the implementation of Reducing Emissions from Deforestation and Forest Degradation (REDD+). Field-based models, particularly those calibrated locally, consistently produced high accuracy, with R² values generally ranging from 0.80 to 0.96. Remote sensing techniques, particularly the integration of airborne LiDAR and optical–SAR, demonstrated strong predictive performance (R² > 0.85) and relatively low Root Mean Square Error (RMSE), typically below 30 Mg/ha. ML approaches such as Random Forest, Support Vector Machines, and LightGBM also achieved competitive results, with R² typically between 0.75 and 0.85 and RMSE below 40 Mg/ha when trained on high-quality input data. Mangrove and dipterocarp forests emerged as the most frequently studied ecosystems. While methodological innovations are evident, notable gaps remain in model harmonization and representation of ecosystem diversity. The review recommends integrating species-specific allometric models with remote sensing and machine learning pipelines, supported by open-access datasets, to enhance national forest monitoring systems and REDD+ readiness across Southeast Asia. Keywords: aboveground biomass, allometric, biomass estimation, carbon stock, South East Asia
Genetic Improvement of Araucaria cunninghamii for Enhanced Industrial Pulp Production Pamungkas, Bayu; Setiadi, Dedi; Baskorowati, Liliana; Mashudi; Pudjiono, Sugeng; Nurtjahjaningsih, Ida Luh Gede; Susanto, Mudji; Hendrati, Rina Laksmi; Sumardi; Fauzan, Yusuf Sigit Ahmad; Wirabuana, Pandu Yudha Adi Putera
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1163

Abstract

Araucaria cunninghamii has significant potential as a long-fiber pulpwood source in Indonesia; however, its utilization remains limited due to its dependence on imported raw materials. This study presents the results of a first-generation progeny trial designed to evaluate genetic variation and identify superior genotypes for future breeding programs. This study was conducted in Bondowoso, East Java; the experimental was included 80 families from six provenances (Fakfak, Jayapura, Serui, Wamena, Manokwari, and Queensland) and designed by a Randomized Complete Block Design (RCBD); comprised of 6 provenances, 80 families, 4 blocks, 4 trees per plot with a spacing of 4 m ´ 2 m. After six years, the survival rates ranged from 98.30% to 99.61%, indicating a strong potential for adaptability. Significant differences were observed among families for height, diameter, and volume growth traits. Heritability estimates for height, diameter, and volume at the individual level were 0.30, 0.25, and 0.27, respectively, and 0.48, 0.45, and 0.47 at the family level. Strong genetic correlations were found between height and diameter (r = 0.99), suggesting the potential for indirect selection through breeding. These findings highlight the genetic potential of A. cunninghamii for sustainable pulp production and inform future breeding strategies that focus on growth, adaptability, and wood quality. Keywords: Araucaria cunninghamii, genetic variation, progeny test, pulpwood, heritability, provenance trial

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