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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 332 Documents
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Export Competitiveness of Indonesia’s Uncoated Paper in the Global Forest Products Market During and After the COVID-19 Pandemic: Evidence from Constant Market Share Analysis Elisa Ganda Togu Manurung; Bintang Charles Hamonangan Simangunsong; Maya Atasha
Jurnal Sylva Lestari Vol. 14 No. 2 (2026): 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.v14i2.1434

Abstract

Indonesia is one of the world’s leading exporters of uncoated paper products, supported by abundant plantation forests. However, Indonesia's uncoated paper export declined over the period 2018-2024. The objective of this research was to examine factors affecting the export competitiveness of Indonesia’s uncoated paper products in the global forest products market during and after the COVID-19 pandemic. Data on export values, exchange rates, and GDP deflators obtained from Trade Map and the IMF were analyzed using the Constant Market Share analysis.  The results showed that during the COVID-19 pandemic, Indonesia’s uncoated paper exports increased mainly due to favorable impacts on world trade and competitiveness. In contrast, the composition of commodities and market distribution had an unfavorable impact on Indonesia’s exports. After the COVID-19 pandemic (2023-2024), Indonesia’s uncoated paper exports declined due to adverse effects on global trade and a negative competitiveness effect. On the other hand, commodity composition and market distribution had a favorable impact on Indonesia's exports. For the future, Indonesia needs strategies to maintain and improve the competitiveness and market stability of HS 480256, HS 480255, and HS 480257, such as: ensuring the forest certification; maintaining sustainable production, periodically reviewing international trade barriers, tariff changes, production cost efficiency; and increasing the capacity and technology of paper products. To provide more insight, the CMS method should be combined with an econometric method that can directly model a structural change in demand and estimate important parameters, such as price, cross-price, and income elasticities. Keywords: competitiveness effect, composition effect, constant market share, market distribution effect, writing paper
Improving Seed Viability and Vigor of Acacia crassicarpa A. Cunn. Ex Benth. Using Ultrafine Bubbles and Biopriming Based on Dark Septate Endophytes Dede Jajat Sudrajat; Evayusvita Rustam; Mohammad Agus Salim; Yulianti; Nurhasybi; Naning Yuniarti; Surono; Yohanes Aris Purwanto
Jurnal Sylva Lestari Vol. 14 No. 2 (2026): 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.v14i2.1446

Abstract

Acacia crassicarpa is a fast-growing tree species that has been a mainstay in the establishment of industrial plantation forests in Indonesia. The need for A. crassicarpa seedlings for large-scale planting programs is often hampered by poor seed germination due to strong dormancy and low seed vigor. This study aims to analyze the effects of ultrafine bubbles (UFB) and biopriming with dark septate endophytes (DSE) on the viability and vigor of A. crassicarpa seeds. Before treatment, all seeds were soaked in 98% H2SO4 for 15 minutes as a field procedure for A. crassicarpa seed germination, serving as the positive control in this study. A completely randomized factorial design with two factors, i.e., UFB water (0, 8, and 20 ppm) and DSE isolates (without DSE, MM15 (DSE MM.15), Cladosporium teunissimum (DSE KSP.1), and Dendrothyrium sp. (DSE CPP.114), was used to test the effects of the treatments on seed germination parameters (germination capacity, germination speed, germination value, hypocotyl and radicle length, and vigor index). The germination parameters were analyzed using analysis of variance and Duncan’s Multiple Range Test at the 95% confidence level. The interaction between UFB and DSE treatments significantly affected germination capacity, germination speed, germination value, and vigor index. The optimal result was achieved by soaking seeds in 8 ppm UFB water for 24 hours, combined with soaking in DSE CPP.114 for 24 hours with a germination capacity of 78.5% (increase of 32.5% from control), germination speed of 8.04% day-1 (increase of 38% from control), germination value of 15.39 (increase of 188.7% from control), and vigor index of 11.29 (increase of 80.3% from control). Thus, the UFB water and DSE Dendrothyrium sp. (DSE CPP.114) can increase seed viability and vigor after scarification, thereby directly improving the quality and quantity of A. crassicarpa seedlings for planting programs. Keywords: Acacia crassicarpa, biopriming, dark septate endophyte, seed germination, ultrafine bubbles

Page 34 of 34 | Total Record : 332

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