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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Agrienvi : Jurnal Ilmu Pertanian Jurnal Hutan Tropika JURNAL HUTAN TROPIS
Joni, Herwin
Jurusan Kehutanan Fakultas Pertanian Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences

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Pembuatan Lawung Sumping Berbahan Kulit Kayu Nyamu di Prodi Pendidikan Luar Sekolah (PLS) Universitas Palangka Raya: The Creation of Lawung Sumping Made from Nyamu Bark in the Non-Formal Education Program at the University of Palangka Raya Triyadi, Antonius; Tanduh, Yusintha; Joni, Herwin; Toni, Hendra; Rosdiana, Rosdiana
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18594

Abstract

Non-Timber Forest Products, such as Nyamu/Breadfruit Bark (Artocarpus altilis), are utilized by the Dayak community as the primary material for making traditional attire. Complementary items like Sumping and Lawung are also crafted. In the past, these Lawung and Sumping were simple, with minimal ornamentation or accessories. However, as demand has grown, decorations such as sequins, beads, and embroidery have been added. Despite these enhancements, the designs still reflect the distinctive characteristics of the Dayak tribe in Central Kalimantan. The challenges faced by the partners involved in this initiative include Partners have no prior experience in making Lawung and Sumping, although these products are in high demand; As educators in the Non-Formal Education program, the partners feel it is crucial to provide entrepreneurial skills to their students; and Partners need to understand the techniques for applying accessories such as sequins, beads, embroidery, and bird feathers to enhance the aesthetic appeal of bark-based materials. The primary challenge that needs immediate attention is transferring knowledge to enhance participants' skills so they can create job opportunities, design innovative and attractive crafts, and produce high-quality products that align with market demands. The use of simple and reliable technology is introduced to participants, emphasizing that bark can be transformed into desirable products instead of being wasted. This results in unique, distinctive, and beautiful items. Implementing sewing machines and techniques for embellishing bark materials with sequins is a straightforward technological application accessible to all participants. The training benefits education by incorporating aspects of local wisdom into the curriculum for both formal and non-formal education. By introducing regional crafts, participants can explore creativity, innovation, and entrepreneurial opportunities. The products created include Lawung and Sumping with motifs inspired by Bajakah (a traditional plant) and birds, adorned with embroidery, sequins, and bird feathers for the Sumping.
Analisis Sifat Kimia Kayu Meranti Tembaga (Shorea leprosula Mig.) Dari Hutan Alam Dan Hutan Tanaman Di PT. Dwima Jaya Utama : Chemical Properties Analysis of Meranti Tembaga Wood (Shorea leprosula Mig.) from Natural Forests and Plantation Forests at PT. Dwima Jaya Utama Joni, Herwin; Santoso, Mahdi; Wahyudi, Wahyudi; Sosilawaty, Sosilawaty; Tanduh, Yusintha; Triyadi, Antonius; Toni, Hendra; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.21999

Abstract

This study analyzes the chemical properties of Meranti Tembaga wood (Shorea leprosula Mig.) from natural forests and intensively managed plantation forests (Silin) at PT. Dwima Jaya Utama. Samples were taken from trees with diameters of 28 cm, 36 cm, 43 cm, and 51 cm to compare extractive content (cold water, hot water, ethanol-toluene), holocellulose, α-cellulose, lignin, and ash levels. Results showed that Silin-grown wood had higher extractive content in cold and hot water but lower lignin and ash levels compared to natural forest wood. α-Cellulose content was consistently high across all diameters, meeting industrial standards. The findings suggest that Silin techniques can produce quality wood with shorter harvest cycles, though chemical properties vary by diameter and origin. This research provides valuable insights for sustainable forest management and industrial applications of Shorea leprosula.
Kualitas Papan Semen Partikel Serbuk Gergaji Kayu Meranti Merah (Shorea leprosula Miq.): Red Meranti Wood (Shorea leprosula Miq.)Sawdust Particle Cement Board Quality Ludang, Yetrie; Luhan, Gimson; Fauzi, Fuad; Herianto, Herianto; Jaya, Herry Palangka; Joni, Herwin; Triyadi, Antonius; Sinulingga , Merinda Br
JURNAL HUTAN TROPIKA Vol 20 No 2 (2025): Volume 20 Nomor 2 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i2.23200

Abstract

Research has demonstrated the treatments using sawdust–cement ratios of A1 (1:1.5), A2 (1:2), A3 (1:2.5), and A4 (1:3) in the manufacture of red meranti wood particle cement boards based on the SNI 03-2105-2006 standard. The results showed that the physical and mechanical properties of red meranti sawdust cement boards met the standards for moisture content, density, and thickness swelling. However, the modulus of elasticity (MoE) and modulus of rupture (MoR) did not meet the SNI 03-2105-2006 requirements. The analysis of variance indicated that the sawdust–cement ratio treatments had no significant effect on moisture content, density, and thickness swelling, but had a significant effect on the modulus of elasticity (MoE) and modulus of rupture (MoR), with the best treatment being A1 (1:1.5). The quality of the red meranti sawdust cement board falls under the ordinary type 1 particle cement board with a thickness of 13 mm and medium density, and is therefore recommended for non-structural uses such as interior partition walls, ceilings, decorative purposes, and tabletops.
Water Content and Specific Gravity of Pulai (Alstonia scholaris) Coppice Wood: Potential Utilization Indrayanti , Lies; Yanarita; Koroh, Desy Natalia; Siska, Grace; Joni, Herwin; Santosa, Mahdi; Ciluk, Yan
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.14290

Abstract

The study aims to determine the water content and specific gravity and analyze both on the potential utilization of pulai coppice wood. The study was conducted at the Forest Products Technology Laboratory, Forestry Department, Faculty of Agriculture, Palangkaraya University. Pulai coppice wood material was taken around the Palangka Raya University Campus, tree diameter 34cm, branch-free height 7m. Using a 2-factor factorial Randomized Block Design with 3 levels, the first factor is the axial direction, namely the base, middle and tip. The second factor is the radial direction, namely near the heart, between the heart and the bark and near the bark. The parameters observed were green water content, air-dry water content, green specific gravity, air-dry specific gravity and oven-dry specific gravity. The results showed an average value of green water content of 84.75%, air-dry water content of 18%, green specific gravity of 0.29%, air-dry specific gravity of 0.30% and oven-dry specific gravity of 0.31%. All parameter values ​​​​resulted from the research on pulai coppice wood were lower than the values ​​​​of the main stem pulai coppice wood from previous studies. In the axial direction, all parameter values ​​show an increasing pattern from base to tip, except for the wind-dry moisture content, which shows the opposite pattern. In the radial direction, the values ​​tend to be uniform, except for the green specific gravity, which decreases from the outside (near the bark) to the inside (near the heart). The results of the analysis of variance indicate that all parameters influence the axial direction, while only the green specific gravity influences the radial direction. This indicates that the axial factor dominates the physical properties of pulai coppice wood. The interaction factors that influence this are green water content and oven-dry specific gravity. Based on the specific gravity and wind-dry moisture content values, pulai coppice wood is lightweight and adapts quickly to its environment, thus quickly achieving dimensional stability. This pulai coppice wood is suitable for light construction and interior use.
Co-Authors Ahmad Mujaffar Alpian Ayub Wanasetya Christy, Eva Oktoberyani Ciluk, Yan Desy Natalia Koroh Fauzi, Fuad Gimson Luhan Grace Sisca Hendra Toni Herianto Herianto Iis Yuanita Indrayanti , Lies Jaya, Herry Palangka Johansyah Johansyah Joni Parnasip Sinaga Kilinton Sihombing Koroh, Desy Natalia Mahdi Santoso Mujaffar, Ahmad Nuwa Nuwa Nuwa Nuwa Pebri Leonardo Tampubolon Raden Mas Sukarna, Raden Mas Renhart Jemi Reri Yulianti Rosana Elvince Rosdiana Rosdiana Santosa, Mahdi Silvianingsih, Yosefin Ari Sinulingga , Merinda Br Siska, Grace Sitorus Sitorus Sosilawaty Sosilawaty Sosilawaty, Sosilawaty Tanduh, Yusintha Triyadi, Antonius Wahyu Supriyati Wahyudi Wahyudi Yanarita Yanciluk Yetrie Ludang Yorlandi Kornelius Yoga Yosep Yusuf Aguswan