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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 18 Documents
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Search results for , issue "Vol. 13 No. 2 (2025): May" : 18 Documents clear
Ecological Value of Bird Diversity in the Buffer City Area of Indonesia’s New Capital, East Kalimantan Agil, Muhamad; Hidayah, Maulida Ulfa; Kadir, Marniati
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1107

Abstract

The development of Indonesia’s new capital will impact the lives of living things, including birds. This study aims to determine the bird species diversity in the buffer cities surrounding Indonesia’s new capital area, specifically in Tenggarong, Samarinda, Balikpapan, and Penajam. Bird data were collected using the point count method. The results showed that the bird diversity index (H') in these cities falls within the medium category, with the highest value recorded in Tenggarong (H' = 2.23) and the lowest in Balikpapan (H' = 1.85). The most abundant species were Hirundo tahitica in Tenggarong (23.65%) and Balikpapan (23.65%), and Passer montanus in Samarinda (28.75%). In Penajam, both P. montanus and Pycnonotus aurigaster showed the highest relative abundance (21.9%). The evenness index ranged from 0.72 to 0.77 across the four cities, while species richness was categorized as medium in Tenggarong, Samarinda, and Penajam, but low in Balikpapan. Among the 34 bird species identified, 32 were classified as Least Concern (LC), one as Vulnerable (VU), and one as Endangered (EN) according to according to the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. To safeguard the survival of birds in buffer cities, especially those categorized as VU and EN, both the government and local communities must implement targeted conservation policies, preserve natural habitats, and promote sustainable ecological practices. Keywords: bird, buffer city, conservation, diversity, Indonesia’s new capital
Evaluation of the Repeatability and Accuracy of RTK GNSS under Tree Canopy Eren, Mehmet; Kurtulgu, Zumrut; Pirti, Atinc
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1110

Abstract

Using the Real Time Kinematic (RTK) GNSS (Global Navigation Satellite Systems) Method, one may precisely estimate a location on Earth in “real-time” to within a few centimeters. However, significant limitations remain, such as accuracy loss due to poor satellite sight (e.g., high satellite obstructions from tree canopy and dense urban areas). It usually takes time to resolve the ambiguities or, on many occasions, results in failure.  Several satellite systems have been deployed in recent years besides GPS and GLONASS, such as Galileo, BeiDou, and other satellite systems. GNSS is the replacement word for GPS, GLONASS, Galileo, and BeiDou. Theoretically, this GNSS system would be more beneficial than previous systems such as GPS; issues with decreased position accuracy and limited satellite visibility (for example, in the presence of a tree canopy) may be resolved. This study aims to reduce integer ambiguity resolution time using RTK GNSS and examine RTK GNSS’s repeatability/accuracy in forested areas. The outcomes of GNSS positioning (compared with total station) in this study clearly showed improvement because of observing many satellites. The results suggest that the RTK GNSS system is preferred for surveying forested areas. This situation increases the accuracy of the RTK GNSS measurements and shortens the solution time for integer ambiguity. The horizontal component accuracy obtained in repeated RTK GNSS surveys in the forested areas remains 1–12 cm. Keywords: accuracy, GNSS, precision, repeatability, Real Time Kinematic, tree canopy
Integrating Waqf-Based Forests and Carbon Trading: Opportunities, Challenges, and Strategies in Indonesia Ali, Khalifah Muhamad; Tanjung, Hendri; Sukmana, Raditya; Jannah, Miftahul; Mustaqimah, Mu'minah
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1111

Abstract

Carbon trading is pivotal in mitigating greenhouse gas emissions. However, the contribution of waqf-based forests—forests established on endowed land—remains underexplored. This research addresses this gap by investigating the potential, schemes, stakeholders, opportunities, challenges, and strategies for waqf-based forests in carbon trading. Through a literature review, in-depth interviews, and field observations, the study found that waqf-based forests can contribute to carbon trading and raise Islamic awareness. The findings identify two potential schemes for selling carbon credits from waqf-based forests: the Ministry of Environment and Forestry’s carbon exchange and direct business-to-business (B2B) transactions. Due to the sustainability of waqf land and its added ecological, economic, social, and Islamic values, waqf-based forests can produce high-quality carbon credits and provide an inclusive and sustainable green economy. However, challenges such as suboptimal land area, lack of technical knowledge, and the absence of a carbon trading fatwa need to be addressed. Proposed strategies to overcome these challenges include document bundling, collaborations with Corporate Social Responsibility (CSR) programs, direct B2B sales, and selecting plants that enhance carbon economic value. This research offers in-depth insights into the potential of waqf-based forests as significant players in carbon trading, emphasizing their inherent sustainability values. Keywords: carbon trading, green economy, high-quality carbon credit, waqf-based forest
Optimizing Vegetative Propagation of Litsea garciae Vidal: Effects of Cutting Source and Rootone-F Soaking Duration on Root and Shoot Development Ekamawanti, Hanna Artuti; Hazelyna, Sania; Wulandari, Reine Suci
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1112

Abstract

Litsea garciae Vidal, commonly known as engkala, is an endemic medicinal plant of Borneo with promising pharmacological potential. Vegetative propagation through shoot cuttings is a practical alternative to overcome the challenges of seed-based propagation. This study investigated the effects of cutting material source (seedlings and saplings) and soaking duration in 50% Rootone-F (0, 15, 30, 45, and 60 minutes) on the rooting and shoot growth of L. garciae shoot cuttings. A factorial experiment with a completely randomized design was applied, involving ten treatment combinations with five replications each. Results showed that cuttings derived from seedlings achieved 100% survival and rooting rates regardless of Rootone-F treatment. In contrast, sapling cuttings achieved optimal rooting only after 15 minutes of soaking. The interaction of cutting source and soaking duration significantly influenced root development, while shoot growth varied only with individual treatments. Notably, seedling cuttings produced roots that were 1.3 times longer than those from sapling cuttings; however, the dry weight of sapling roots was 1.5 times greater. The dry weight of roots soaked in Rootone-F for 15 minutes significantly increased by 1.3 to 2.8 times compared to the dry weight of roots soaked for other durations. The seedling cuttings produced 1.2 times more shoots than saplings. Interestingly, cuttings without soaking treatment in Rootone-F produced the same number of new leaves as those soaked for 60 minutes but significantly more than those soaked for other durations. These results are vital for optimizing the vegetative propagation technique of L. garciae by selecting the appropriate cutting source and timing for Rootone-F immersion. Keywords: engkala, Litsea garciae, Rootone-F, shoot cuttings, vegetative propagation
Key Regional Commodities for Social Forestry Development in Penyabungan, Mandailing Natal Regency, North Sumatra Syaiful, Syufriandi; Bahruni; Trison, Soni; Darusman, Dudung
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1120

Abstract

Social forestry is a government initiative program that promotes sustainable forest management to enhance community welfare. Mandailing Natal Regency is rich in timber and non-timber forest products (NTFP). This study aims to analyze key and non-key NTFP commodities, changes in growth patterns, and shifts within the biopharmaceutical and fruit sectors relevant to the concept of multiple-use forestry (MUF) under the framework of social forestry in Forest Management Unit IX Penyabungan, Mandailing Natal Regency. Location Quotient (LQ) and Shift-Share (SS) analysis were combined to map and identify local commodities that could become key commodities for social forestry development in Penyabungan, Mandailing Natal Regency, North Sumatra. The results indicated that cinnamon, cocoa, sugar palm, and candlenuts are the essential NTFP commodities with  LQ value > 1. Meanwhile, galangal, turmeric, laos, wild ginger, and curcuma dominate the biopharmaceutical products with  LQ value > 1. Among fruits, starfruit, langsat, durian, guava, jengkol, mango, mangosteen, melinjo, jackfruit, petai, rambutan, and breadfruit are identified as essential commodities with LQ value > 1. While the MUF sectors related to forestry and fruit show positive growth trends, the biopharmaceutical sector exhibits a negative shift. This study suggests that agroforestry development in the social forest at Mandailing Natal could benefit the biopharmaceutical sector, creating job opportunities and increasing farmers’ incomes. Keywords: agroforestry, community economy, location quotient, multi-use forestry, shift-share analysis
The Effectiveness of Forest Management and Monitoring Implementation under the National Forest Stewardship Standards (NFSS) Scheme in Indonesia Sarjito, Joko; Budiastuti, Maria Theresia Sri; Hidayat, Agung; Yuswantoro, Ismail Eko; Wintanti, Rizkia Ajeng Setya
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1133

Abstract

Forest management activities inevitably affect environmental functions and community well-being, necessitating rigorous impact monitoring to improve management practices. The Indonesian National Forest Stewardship Standards (NFSS) provide structured guidelines to balance timber production with environmental protection. This study evaluates the comprehension and application of these standards in forest harvesting planning, implementation, and impact assessment. A quantitative descriptive method was employed, integrating questionnaires, field observations, and interviews with field staff from a Forest Stewardship Council (FSC)-certified forest concession in West Papua, Indonesia. Respondents included staff involved in forest planning, production and logging road construction, silviculture and environmental monitoring, and community development. Data were collected using NFSS-based questionnaires and analyzed using the Likert scale method. In addition, triangulation was conducted via field observations at harvesting sites, document reviews (forest management procedures, High Conservation Value report, Social Impact Assessment report, and Environmental Management and Monitoring Plan report), and interviews to validate questionnaire findings. The results show an average Likert score of 83.91% across five key variables (baseline environmental data, Reduced Impact Logging (RIL) map presence, RIL implementation, human resources, and impact monitoring and adaptation), indicating a strong understanding of NFSS standards. However, challenges remain in enhancing community engagement, implementing best management practices, strengthening supervision and impact monitoring techniques, and developing adaptive strategies for sustainable forest management. Keywords: forest harvesting, forest management, impact monitoring, NFSS Indonesia, reduced impact logging
Leaf Size Indices and Outline-Based Geomorphometric Analysis of Five Philippine Endemic Saurauia Willd. (Actinidiaceae) Mazo, Kean Roe Felipe; Aribal, Lowell Gazo
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1139

Abstract

Species discrimination among species of Saurauia is challenging due to large morphological variation. This study examines the intraspecific variations of the 5 Philippine endemic Saurauia species using leaf size indices (LSI) and outline-based geometric morphometrics to facilitate species discrimination. Leaf samples were measured using the traditional method, scanned, converted to binary images, subjected to elliptic Fourier Analyses, and quantitatively analyzed using principal component analysis (PCA). The leaf morphology significantly differed among species based on the results of LSI and leaf shape outline analyses. The results showed 7 effective principal components (PCs), which accounted for 94.16% of the total variation. Significant differences were observed in all PCs. Discriminant analysis of the leaf shape outline confirmed the delimitation of species with scores relatively higher than the cut-off value. The tree topology from leaf shape outline, and leaf size indices all exhibited similarity in the clustering at the species level. A key to the species based on leaf morphology is also provided. Keywords: elliptic fourier analysis, kiwi, leaf size index, leaf variation, principal component analysis
Growth Performance of Vitex parviflora Juss. and Swietenia macrophylla King in an Abandoned Mining Area at Barangay Maibu, Butuan City, Philippines Goyo, Shiella Lynn Dali-on; Balgoa, Lovely Carumba; Mantilla, Mirasol Cataluña; Quilicot, Rosemarie Cabal
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): 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.v13i2.1148

Abstract

This study evaluated the growth performance of V. parviflora and S. macrophylla planted in an abandoned small-scale mining site in Barangay Maibu, Butuan City, Philippines. This study employed a randomized complete block design (RCBD), with growth parameters including height increment, stem diameter increment, and the number of leaves of the seedlings measured over a five-month period. Soil analysis revealed acidic conditions (pH 5.11), low organic matter levels, and nitrogen and phosphorus. Results showed that S. macrophylla exhibited greater height growth (3.96 cm) and stem diameter increase (0.78 cm) compared to V. parviflora (0.72 cm and 0.072 cm, respectively). The number of leaves also increased more in S. macrophylla (10) than in V. parviflora (5). Among the parameters measured, only the height growth showed a statistically significant difference between the two species. In contrast, the differences in stem diameter and number of leaves were not statistically significant. S. macrophylla demonstrated better adaptability and potential for rehabilitating degraded mining sites compared to the other species. However, it is recommended that future studies lengthen the duration to evaluate seasonal fluctuations, long-term growth performance, and possible soil amendment techniques to improve site rehabilitation and forest restoration outcomes. Keywords: abandoned mining site, growth performance, reforestation, Swietenia macrophylla, Vitex parviflora

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