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INDONESIA
Jurnal Hutan Tropika
Published by Universitas Palangka Raya
ISSN : 16937643     EISSN : 26569736     DOI : https://doi.org/10.36873/jht.v14i1.327
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
adalah jurnal yang memiliki fokus dalam bidang ilmu dan teknologi kehutanan tropika serta semua aspek yang terkait dengan bidang ini. Jurnal ini memiliki ISSN: 1693-7643. Jurnal Hutan Tropika diikelola oleh jurusan Kehutanan, Fakultas Pertanian, Universitas Palangka Raya (Jurnal Hutan Tropika is a journal that focused on science and technology of tropical forestry and also all aspects concerned. This journal has ISSN: 1693-7643. Journal Hutan Tropika is managed by Forestry Department, Faculty of Agricultural, Universitas Palangka Raya)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 436 Documents
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Karakteristik Habitat Tumbuhan Inang (Tetrastigma) Rafflesia meijeri di Taman Nasional Batang Resor 7 Sopotinjak Mandailing Natal Sumatera Utara: Habitat Characteristics of the Host Plant (Tetrastigma) Rafflesia meijeri in Batang Gadis National Park Sopotinjak Resor 7 Mandailing Natal Regency North Sumatra Siti Rohimah; Viny Volcherina Darlis; Niskan Walid Masruri
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25594

Abstract

This study aims to (1) determine the biotic factors of the host plant habitat in the Rafflesia meijeri habitat in Batang Gadis National Park, Resort 7 Sopotinjak, Mandailing Natal Regency, North Sumatra, (2) to determine the abiotic factors of the host plant habitat in the Rafflesia meijeri habitat in Batang Gadis National Park, Resort 7 Sopotinjak, Mandailing Natal Regency, North Sumatra. The research was conducted using a quantitative descriptive method through a vegetation ecology approach and specific habitat studies.Plot determination used a purposive sampling method. The observed parameters included biotic factors such as the condition of the host plant, the condition of Rafflesia meijeri, and the surrounding vegetation. Abiotic factors included temperature, air humidity, light intensity, altitude, slope, rainfall, and soil characteristics. The research results showed that the host plant of Rafflesia meijeri is Tetrastigma papillosum, which climbs the Castanopsis javanica tree. Seventeen individuals of Rafflesia meijeri were found. The dominant vegetation at the seedling and understory levels is Saurauia pendula, while at the sapling to tree level it is dominated by Syzygium racemosum and Ilex micrococca. The habitat environmental conditions have a temperature of 21.1–22.8 °C, air humidity of 76.1–77%, light intensity of 674–848 lux, an altitude of 1263–1285 meters above sea level, and Soil types are cambisol and andosol, granular-platy soil structure, clay, clay loam soil texture, reddish black-very dusky red soil color and soil pH 6.73-6.98. The characteristics of this habitat indicate humid, shady, and stable environmental conditions that support the growth of host plants and the development of Rafflesia meijeri.
Effect Of Soaking in Liquid Smoke on the Specific Gravity Of Gerungang Wood (Cratoxilon Arborences) in the Radial Direction: Pengaruh Perendaman dalam Asap Cair terhadap Berat Jenis Kayu Gerungang (Cratoxilon Arborences) dalam Arah Radial Wahyu Supriyati; Alpian Alpian; Chuchita Chuchita; Efriyana Oksal; Zimon Pereiz; Aprilian Wanashalom
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25678

Abstract

The objective of this study was to determine the effect of immersion in different liquid smoke treatments on the specific gravity of Gerunggang wood at the radial direction. The study was conducted at the Forest Products Technology Laboratory, Faculty of Agriculture, Forestry and Fisheries Palangka Raya University. The parameter observed was the specific gravity of the wood. The experimental method used was a 2x2 factorial completely randomized design (CRD) with two treatments: liquid smoke concentration (0%, 5%) and radial location (near the heart and near the bark), with 10 replications. The results of this study showed that immersion in liquid smoke had a not significant effect (p<0.05) on the specific gravity. The influence of the radial position was significantly different, where the part near the liver was higher than the part near the skin. The interaction between the immersion factor and the radial position had no significant effect.  
Desain Agroforestri Pada Lahan Gambut Di Kota Palangka Raya Kalimantan Tengah: Agroforestry Design on Peat Land in Palangka Raya City, Central Kalimantan Josua Parlaungan Ujung; Afentina; Yanarita
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25841

Abstract

Peatlands in Palangka Raya City have the potential to be developed through sustainable agroforestry systems, but their utilization still faces various biophysical constraints such as high acidity, variations in peat depth and maturity, and fluctuations in groundwater levels. This study aims to (1) identify the biophysical characteristics of peatlands, (2) identify plant species suitable for agroforestry on peatlands, and (3) design an agroforestry design that is appropriate to site conditions and supports the ecological sustainability of the community. Research methods included field observations, measurements of peat depth and maturity, measurements of groundwater levels, and analysis of plant suitability. Data were analyzed descriptively to determine plant patterns and combinations that are adaptive to peat conditions. The results indicate that the peatlands at the study site are acidic with relatively shallow groundwater levels, and the peat maturity conditions influence plant species selection. The recommended agroforestry design combines forestry and agricultural/plantation crops in a mixed pattern tailored to the biophysical characteristics of the land. This system has the potential to increase land productivity, maintain water stability, and reduce the risk of degradation and fire. Thus, agroforestry can be an alternative for productive, environmentally friendly, and sustainable peatland management in Palangka Raya City.
Karakteristik Pelet Kayu Alau Hasil Pencetakan Menggunakan Alat Pres Sederhana: Characteristics of Alau Wood Pellets Printed Using a Simple Press Tool Alpian Alpian; Dhietya Alip Hutomo; Wahyu Supriyati; Eva Oktoberyani Christy; Penyang Penyang; Santosa Yulianto; Yanciluk Yanciluk; Gimson Luhan
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25849

Abstract

Conventional energy sources have negative impacts on the environment, therefore alternative renewable energy from biomass is needed. Biomass energy can be converted into solid fuel in the form of wood pellets. Wood pellets can reduce the use of conventional energy and can be produced from wood waste using environmentally friendly technology. Technology plays an important role in wood pellet production, in addition to raw material composition and processing methods. This study used three particle sizes and three holding times in the pelletizing process. The parameters tested were moisture content, density, tool effectiveness and efficiency, and pellet shape characteristics. The results showed that the moisture content of all treatments met the SNI 8021:2014 standard, while the density values did not meet the standard. The effectiveness and efficiency of The DIP1 pellet molding device were still relatively low in terms of production capacity and pellet quality, both macroscopically (shape) and microscopically (stored energy density). Keywords: biomass, wood pellets, alau wood, simple technology, pellet molding device
Studi Pendahuluan Kayu Mahoni Merah (Eucalyptus pellita F. Muell) Dari Kalimantan Tengah: Preliminary Study Of Red Mahogany Wood (Eucalyptus pellita F. Muell) From Central Kalimantan Grace Siska; Lies Indrayanti; Eva Oktoberyani Christy; Sari Marlina
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25937

Abstract

Eucalyptus pellita is one of the potential plant choices as raw material for the pulp and paper industry in Indonesia. The Eucalyptus pellita F. Muell species has several species, one of which is red mahogany. Red mahogany is a type of plant in industrial plantation forests that is very good for industrial plantation forest business permit holders. This study aims to determine the physical and mechanical properties of red mahogany wood in the axial direction of the stem. The results of the study show that the analysis of variance in testing physical properties, namely moisture content and mechanical properties of red mahogany wood, , modulus of elasticity (MoE), modulus of rupture (MoR), hardness does not have a significant effect on the stem section but density is significantly different at the base of the wood
Kualitas Madu Kelulut (Heterotrigona itama) Di Kota Palangka Raya: The Quality of Stingless Honey Bee (Heterotrigona itama) in Palangka Raya City Muhammad D. Kesuma; Yetrie Ludang; Gimson Luhan; Alpian Alpian; Herry Palangka Jaya; Nuwa Nuwa; Yusintha Tanduh; Yosefin Ari Silvianingsih
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25998

Abstract

The study aimed to evaluate and compare the quality of kelulut honey (Heterotrigona itama) from three cultivation locations in Palangka Raya City, namely Kelampangan (M1), Jalan Hiu Putih (M2), and Jalan Beliang (M3). The three locations have similar forage vegetation dominated by red calliandra, lemon santos, and bidara. The quality parameters tested included laboratory analysis (water content, reducing sugar, and acidity) and organoleptic tests (taste, aroma, color, and viscosity) with reference to SNI 8664:2018. The results showed that differences in cultivation locations significantly affected water content and acidity, but did not significantly affect reducing sugar content. Based on SNI 8664:2018, all samples met the water content standard (≤ 27.5%). However, in the acidity parameter, only locations M2 and M3 met the standard, while location M1 exceeded the threshold. The reducing sugar content at the three locations did not meet the minimum standard limit of 55%. Organoleptic test results showed that M2 honey excelled in aroma and flavor, M1 honey in color, and M3 honey in viscosity. Kelulut honey from all three cultivation locations received good consumer acceptance, with a minimum rating of "quite favorable."Keywords: Kelulut honey quality, SNI 8664:2018, organoleptic test
Model Agroforestry Berbasis Jelutung Rawa (Dyera polyphylla Miq) di Kabupaten Katingan dan Kota Palangka Raya: Agroforestry Model Based on Swamp Jelutung (Dyera polyphylla Miq) in Katingan Regency and Palangka Raya City Johanna Maria Rotinsulu; Raden Mas Sukarna; Nuwa Nuwa; Nursiah Nursiah; Sampang Sampang
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.26006

Abstract

The implementation of social forestry is becoming increasingly important, especially in degraded and deforested peat swamp forest ecosystems. One of the fundamental aspects of agroforestry is maintaining soil fertility. The feasibility of developing agroforestry to rehabilitate degraded forests and peatlands is based on jelutung swamp research to achieve optimal and sustainable results. Forestry sector policies and implementation will continue to be strengthened and improved in line with the impacts of climate change, such as agroforestry-based jelutung RHLG activities. The research objectives are to analyze the growth of community jelutung swamp plants based on age class and assess the economic feasibility of jelutung plants based on agroforestry patterns. The method used in this study is purposive sampling, by selecting and determining jelutung plants based on age class, with a sampling intensity of ±5% of the area or the number of plants. The results of measuring diameter, tree height, and regression correlation tests are presented in tables and graphs. Furthermore, an analysis is conducted to examine the role of social forestry with jelutung plants using Net Present Value (NPV), Benefit-Cost Ratio (BCR), and Internal Rate of Return (IRR). The results show that the growth of jelutung plants in Hampangen Village and Kalampangan Subdistrict varies, with average diameter values of 24.03 cm and 18.71 cm, and average tree heights of 14.57 m and 11.54 m. Based on the three criteria used (NPV, BCR, IRR), the intercropping agroforestry system with jelutung as the main crop can be developed and is economically viable because it is profitable.
Uji Mutu Pelet Kayu Durian (Durio zibethinus) dengan Perekat Tepung Tapioka: Quality Assessment of Durian Wood (Durio zibethinus) Pellets Using Tapioca Starch Binder Lies Indrayanti; Alpian Alpian; Penyang Penyang; Chartina Pidjath; Wahyu Supriyati; William A
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.26007

Abstract

The quality of wood pellets produced from durian wood (Durio zibethinus) sawdust with tapioca starch as an adhesive was evaluated. The research was conducted at the Forest Product Technology Laboratory, Department of Forestry, and the Integrated Laboratory of the University of Palangka Raya, as well as at the Standardization and Industrial Services Center (BSPJI) Banjarbaru. Six quality parameters were analyzed based on the Indonesian National Standard (SNI) 8041:2014, and the results were compared with the French standard (ITEBE). A factorial Completely Randomized Design (CRD) was applied with two factors: wood part (stem, branch, twig) and adhesive proportion (7.5%, 10%, 12.5%). It was found that durian wood pellets met the SNI requirements for moisture content, volatile matter, ash content, and calorific value in six treatment combinations with values exceeding 4,000 cal g⁻¹. However, density, fixed carbon, and calorific value at 7.5% adhesive were below the standard. According to the ITEBE standard, only density did not meet the requirement, while other parameters complied, with seven treatment combinations failing to achieve the calorific value threshold. The analysis of variance indicated that adhesive proportion had no effect on moisture content. The stem part was shown to affect density, while the interaction of factors influenced ash content and calorific value. Both stem part and adhesive proportion affected fixed carbon and volatile matter. The best pellet quality was obtained from the stem part with 10% adhesive. Further studies are required to enhance density, particularly through hot pressing techniques
Evaluasi Kelayakan Ekologis dan Keruangan Usulan Taman Hutan Raya di Sebagian Wilayah Kebun Raya Katingan: Evaluation of the Ecological and Spatial Feasibility of the Proposed Grand Forest Park in Part of the Katingan Botanical Gardens Area Santosa Yulianto; Antonius Triyadi; Hendra Toni; Yosep Yosep; Herwin Joni; Reri Yulianti; Arifta Arifta
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.26037

Abstract

This study evaluates the ecological and spatial feasibility of a 12.81-hectare Convertible Production Forest area located within the Katingan Botanical Garden, Katingan Regency. The researcher aims to formulate the feasibility of this area becoming a Grand Forest Park. The researcher applied a spatial analysis method using satellite imagery and drone orthophotos. The researcher also conducted direct vegetation surveys and wildlife observations. Spatial analysis results prove that very dense canopies dominate an area of 11.60 hectares. Biophysical analysis confirms the presence of a heath forest ecosystem on the Pakau land system with high acidity and low nutrients. Biodiversity surveys identified 31 plant species from 11 families, dominated by Daha Bahandang and Terantang trees. The research team also recorded 47 fauna species and found direct evidence of critically endangered species, including Bornean Orangutan (Pongo pygmaeus) nests and Sun Bear (Helarctos malayanus) claw marks. Local communities provide strong support for the conservation plan due to ecotourism economic development potential. This study concludes that the area perfectly meets the technical criteria to change its status to a Grand Forest Park as an in-situ conservation center and urban ecological buffer.
Analisis Eksperimental Kekuatan Sambungan Konvensional dan Futuristik dalam Konstruksi Furnitur: Experimental Analysis of Conventional and Futuristic Joint Strength in Furniture Construction Soleh Muhamad; Bahtiar Rahmat; Agung Ari Purwanto; Wahyu Widiyanto; Arip Wijayanto; Desy Mulyosari; Nurmadina Nurmadina
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.26249

Abstract

This study aims to evaluate the strength of conventional and innovative joints in MDF furniture construction through compression testing. The four types of corner joints tested include Lamello biscuit joints, Minifix joints, wood dowel joints, and JCBC insert nut joints. Each joint type was tested under two loading conditions using the diagonal compression method. Test results indicate that the futuristic JCBC insert nut joint and the conventional wood filler joint exhibited the highest compressive strength, while the futuristic Minifix joint and the conventional Lamello biscuit joint demonstrated the lowest compressive strength performance under both the A-shaped and L-shaped test configurations. Statistical analysis of the density and moisture content of the MDF revealed no significant differences among all specimens; thus, the differences in compressive strength were primarily influenced by the type of joint. These findings provide practical recommendations for the furniture industry in selecting the optimal joint based on efficiency and structural strength, with wood fillers (conventional joints) used for knock-up furniture and JCBC insert nuts (futuristic joints) used for knock-down furniture as the best alternatives for furniture construction joints.

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