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TEKNOLOGI SEDERHANA PEMBUATAN BRIKET ARANG DARI LIMBAH INDUSTRI MEBEL (Simple Technology of Making Charcoal Briquettes from Furniture Industry Waste): Alpian, Wahyu Supriyati, dan Yanciluk JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.286

Abstract

ABSTRACTWaste of the furniture industry activity was not yet utilized optimally. When it developedbecame a produce, it has higher economic value. The potential waste of this furniture industrycan be utilized as raw material for making charcoal briquettes as a source of energy. Charcoalbriquettes are charcoal wood that is altered in shape, size, and density by means of pressing amixture of charcoal powder and adhesive material. Simple technology of making charcoalbriquettes from furniture industry wastes made can be developed to utilize the potential waste ofthe furniture industry as an alternative energy from biomass to sufficient household energyneeds.Keywords: waste, furniture industry, charcoal briquettes, energy, household
KUALITAS PAPAN PARTIKEL DARI LIMBAH GERGAJIAN KAYU BANGKIRAI (Shorea laevis Ridl) (Quality of Particle Board From Saw Waste Wood of Bangkirai (Shorea laevis Ridl)): G.Siska, Sarinah, D.L. Bangun JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.290

Abstract

ABSTRACTThe particle board is a wood product resulting from the heat-blowing process between a woodparticle mixture or lignocellulosic raw material with an adhesive or a wood product ofreconstitution. A research on particle board manufacture was conducted using Bangkirai woodparticles bonded together with urea formaldehide (UF) adhesive. This research aimed todetermine the quality of particle board produced on its physical and mechanical properties.Particle particle size is 30 cm x 30 cm x 1 cm with target density 0,7 g / cm3. Results revealedthat UF adhesive level had an effect on moisture content, density, water absorption, thicknessswelling, MoR, MoE and screw-withdrawal strength. Density and thickness swelling that couldfavor the Japanese standards either partially or completely. Based on the value of density,particle board of this experimental results is more suitable for use as a room divider andfurniture raw materials. Particle board with 25% adhesive content provides a good prospect inthe particle board manufacturing industry.Keywords: Particleboard; physical and mechanical properties; Bangkirai wood; UreaFormaldehyde adhesive
RESPON PERTUMBUHAN JELUTUNG RAWA (Dyera polyphylla (Miq).V. Steenis.) TERHADAP PUPUK NPK PADA LAHAN GAMBUT (Respons of Jelutung (Dyera polyphylla (Miq).V. Steenis.) toward NPK Manure on the Peat Land): Christopheros, Gimson Luhan, V.S.G. Nyahu dan Johansyah JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.291

Abstract

ABSTRACTThe National Movement for Forest and Land Rehabilitation Program (GNRHL orGerhan) proclaimed in 2003, it is advisable to plant timber species, superior plantspecies, endemic plants and multipurpose species. Jelutung swamp (Dyera polyphyllaMiq. Steenis.) Is one of the types that fulfill the criteria, so it is promoted as a type offorest and peatland rehabilitation. The basic consideration of swamp jelutung has a goodadaptability and is tested on peatlands, its growth is relatively fast and can be cultivatedwith minimal land manipulation, and can be obtained the result of double result that iswood and sap. Peat soils have relatively low productivity due to poor nutrients, so needto pay attention to the nutrient needs of the plants. The solution needs to be donefertilization, you should use a complete fertilizer type such as NPK. Selection of NPKMutiara fertilizer because it includes inorganic fertilizer that has the advantage that is, theprovision of fertilizer can be measured and the dosage is right. The objective of thisresearch is to know how to fertilize and dose of NPK Mutiara fertilizer which givesoptimum growth on swamp jelutung plant. The expected benefits are as materialinformation and consideration of the selection of species for reforestation andrehabilitation of peatlands that want to develop the type of jelutung swamp plants.Keywords: plant growth, NPK, peat, jelutung swamp.
PEMANFAATAN TANAMAN HUTAN DAUN TEPANGGANG SEBAGAI PEWARNA ALAMI KERAJINAN ROTAN (Utilitization of Tepanggang Leaf to Natural Color of Rattan Handicraft): Nuwa1), Yusintha Tanduh 1) dan Prihanika2) JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.292

Abstract

ABSTRAKPenggunaan pewarna sebagai pengerjaan akhir (finishing) pada produk kerajinan danmebel merupakan suatu cara memberi nilai tambah dan untuk meningkatkan kualitasserta nilai jual produk tersebut. Bahan pewarna yang umum digunakan adalah pewarnasintesis, pewarna ini mengandung gugus AZO yang berbahaya bagi kesehatan danlingkungan. Tanaman sumber pewarna alami sebenarnya dapat kita temukankeberadaanya di sekitar kita, baik sebagai tanaman yang berada di sekitar kita maupuntanaman yang ada di hutan. Tujuan penulisan ini adalah memanfaatkan daun Tepanggangyang berasal dari hutan sebagai pewarna alami kerajinan rotan. Perajin rotan yangmenjadi tempat pelaksanaan uji coba adalah perajin rotan Duta Dare yang beralamatkandi Jl Menteng X kota Palngka Raya Provinsi Kalimantan Tengah, yang menghasilkanproduk kerajinan rotan seperti Tas, Dompet, Rambat, Tikar, Topi, kipas dan lain-lain.Metode pelaksanaan melalui penyampaian materi, tanya jawab, demontrasi atau prakteklangsung pembuatan bahan pewarna alami serta evaluasi terhadap hasil kegiatan. Hasilpewarnaan pada rotan dengan menggunakan daun tepanggang menghasilkan warna hitamyang mengkilap, aman dan tidak berbahaya bagi kesehatan. Dengan adanya pengenalanterhadap pewarna alami daun Tepanggang, perajin Duta Dare mampu menghasilkananeka motip dan corak warna produk kerajinan.Kata kunci : Tanaman hutan, daun tepanggang, pewarna alami, produk kerajinan.
PRESTASI KERJA KEGIATAN PENEBANGAN PT. BINA MULTI ALAM LESTARI DI KALIMANTAN TENGAH (Work Achievement Felling Activities PT. Bina Multi Alam Lestari in Central Kalimantan) : I Nyoman Surasana, Moh. Rizal, Jessika Simamora JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.293

Abstract

ABSTRACTThe objectives of the research were to find out the composition of pure and generalworking time to total working time, work achievement of each felling team and averagework performance of all felling teams at the level of the sample size that was appropriatefor a research. The research method is Non Stop Method with t Test analysis. Fellingworkers observed were 3 (three) teams, samples were 35 trees/team or total sample were105 trees for 3 felling teams. The results showed that the average work time of the day:Team I = 191.33 minutes / day, Team II = 202.33 minutes / day, Team III = 190.00minutes / day, with average score (for the three squads ) = 194,55 minutes / day. Averageworking time composition (for all felling teams) in a day: Total Working Time (TWT) =194.55 minutes / day, Pure Work Time (PWT) = 179.02 minutes / day (92.01% of TWT )and General Working Time (GWT) = 15.53 minutes / day (7.99% of TWT). Averagefelling result: Team I = 50.03 m3 / day, Team II = 100.76 m3 / day, Team III = 63.25 m3/ day, with average score (for the three teams) = 72.01. Felling performance: Team I =16.32 m3 / hr, Team II = 29.88 m3 / hr, Team III = 19.97 m3 / hr, with average score (forthe three teams) = 22.06 m3 / hour. The result of t test shows the performance of TeamII is bigger than Team I and Team III, whereas Team I work achievement is notsignificantly different from Team III. The minimum number of samples required for thevalidity of this study was 61 units, while the number of samples that had been observedreached 105 units.Keywords: work result, felling, work achievement, working time.
IDENTIFIKASI DAN INTENSITAS SERANGAN HAMA PADA ANAKAN SENGON (Paraserianthes falcataria (L).Nielsen ) DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS TUMBANG NUSA KALIMANTAN TENGAH (Identification and Intensity of Pests that Attack Sengon Saplings in the KHDK Tumba: Syariffudin 1), Eritha K.Firdara 2), Patricia E.P. 2) JHT, Admin
Jurnal Hutan Tropika Volume 13 Nomor 1 Tahun 2018
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v13i1.294

Abstract

ABSTRACTSelection Sengon on an industrial scale is an appropriate choice to be prioritized for theDevelopment of Industrial Plantation Forest (IUPHHK-HTI). In 1989 Balai Besar Selulosa(BBS) in Bandung have researched pulp sengon derived from wood raw material for newsprintand other printing papers such as copier paper. Forest areas with special purpose is designated forthe purpose of research and development, education and training as well as cultural and religiousinterest of the local, in accordance with the mandate of law No. 41, 1999 without altering thefunction of the area. Sengon known by the botanical name as Paraserianthes falcataria,including in fabaceae family. Sengon (Paraserianthes falcataria) can grow on poor soils and alittle nest, dry soil, wet, or rather salty. The purpose of this research is for identify and knowingthe intensity of pests that attack in puppies sengon (Paraserianthes falcataria) at the nursery inKHDTK (Kawasan Hutan Dengan Tujuan Khusus) Tumbang Nusa, District of jabiren CentralKalimantan.This Research was conducted in the nursery area located in Kawasan Hutan DenganTujuan Khusus (KHDTK), Tumbang Nusa, District of jabiren Central Kalimantan for threemonths. The object being observed in this research is puppies sengon (Paraserianthes falcataria)which is in the area of the nursery with 3600 puppies sengon in the seedbed and seedling peststhat attack on sengon (Paraserianthes falcataria). Results of the study show the identification ofpests that attack pests sengon saplings in the nursery area for research there are two kinds of pestsare locusts and caterpillars. The frequency and intensity of pest attacks are 0,25 % and 0,18%with the level of damage including healty criteria. So the amount of frequency and intensity ofattack in puppies sengon are 0,25% and 0,18%.Keywords : Description of sengon, pests attack
Tingkat Pembukaan Kanopi Hutan Akibat Kegiatan Pemanenan pada Sistem Silvikultur Tebang Pilih Tanam Indonesia (Opened Forest Canopy Caused by Forest Exploitation Using Indonesian Selectice Cutting and Planting Silvicultural System): Wahyudi JHT, Admin
Jurnal Hutan Tropika Volume 14 Nomor 1 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v14i1.328

Abstract

ABSTRACTForest exploitation (harvesting) on the production forest management using silviculturalsystem of Indonesian Selectice Cutting and Planting (ISCP) has been conducted since1989. This research was aimed to analyze forest degradation in the form of opened forestcanopy that be caused by harvesting using ISCP system. The research was located at theworking areas of 2018 at PT Gunung Meranti forest concession. Research samplesnamely 30 trees, they were divided into 6 diameter classes i.e. 41 to 50 cm, 51 to 60 cm,61 to 70 cm, 71 to 80 cm, 81 to 90 cm dan 91 cm up. Each diameter classes wascompiled into 5 trees. Research result show the equation of opened forest canopy whichcaused degraded forest that be analyzed using tree diameter, i.e. Y=24,472+0,4428X (R2=67,45%).Keywords: degradation, diameter, harvesting, equation
10.36873/jht.v15i2.2159 Yunik Istikorini, Arum Sekar Wulandari, Wahyu Krisna: UJI KESEHATAN BENIH KENANGA YLANG-YLANG (Cananga odorata Lam. Hook.f. & Thomson) forma genuina (Health test of Kenaga Ylang-Ylang Seed (Cananga odorata Lam. Hook.f. & Thomson) forma genuina) JHT, Admin
Jurnal Hutan Tropika Volume 15 Nomor 2 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i2.2159

Abstract

Ylang-ylang (Cananga odorata Hook.F.& Thomson) is one of the defense plants with various benefits and advantages. One of the hallenges in ylang-ylang Cananga cultivation is the contribution of high-quality seed. The study aimed to determine the health of seeds and identify fungi carried by ylang-ylang seeds. The seed health test used an incubation method on potato dextrose agar (PDA) media. Results showed that ylangylang seeds associated with five fungal for 11 months of age and newly harvested seedswere the same fungal. Those isolated fungal were Aspergillus niger, A. flavus, Penicillium sp., Botryodiplodia sp. and Paecilomyces sp. The fungus A. niger is the dominant fungus. Fungi Paecilomyces sp. and Botryodiplodia sp. The fungus A. niger identified most frequently. Fungi Paecilomyces sp. and Botryodiplodia sp. had a fast growth rate, whereas Penicillium sp. had slower growth compared with other isolates. Keywords: Fungus, seed health, ylang-ylang seeds
10.36873/jht.v15i01.2161 PP. 62-69 : Samuel A. Paembonan dan Syamsuddin Millang: POTENSI CADANGAN KARBON PADA HUTAN RAKYAT CEMPAKA (Elmerillia tsiampacca) PADA ZONA DATARAN TINGGI TANA TORAJA (Potential Carbon Stocks in Community Forest of Cempaka (Elmerillia tsiampacca) in the Tana Toraja Highland) JHT, Admin
Jurnal Hutan Tropika Volume 15 Nomor 2 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i2.2161

Abstract

Cempaka (Elmerillia tsiampacca) merupakan jenis unggulan di dataran tinggi pulau Sulawesi yang banyak dikembangkan pada hutan rakyat di Pulau Sulawesi. Penelitian ini bertujuan untuk mengetahui cadangan karbon pada tegakan Hutan Rakyat Cempaka pada zona dataran tinggi di Kabupaten Tana Toraja. Metode penentuan plot sampling dilakukan secara purposive berdasarkan umur tegakan, yaitu: umur 7 tahun, 13 tahun dan 22 tahun. Pada masing-masing umur tegakan dibuat 5 plot sampel dengan ukuran plot 25 meter x 25 meter untuk mengukur diameter pohon. Didalam setiap plot sampel dibuat 5 sub plot dengan ukuran 1 m x 1 m untuk mengukur biomassa tumbuhan bawah dan serasah. Perhitungan nilai biomassa dan cadangan karbon pohon dihitung dengan menggunakan persamaan allometrik. Hasil penelitian menunjukkan bahwa terjadi peningkatan simpanan karbon yang signifikan dengan kenaikan umur tegakan. Simpanan karbon rata-rata pada umur tegakan 7 tahun sebesar 21,88 ton/ha, umur 13 tahun sebesar 131,78 ton/ha dan pada umur 22 tahun sebesar 165,44 ton/ha.Kata kunci : Cempaka (Elmerillia tsiampacca), hutan rakyat, Umur tegakan, Cadangan Karbon.
10.36873/jht.v15i2.2162 PP. 70-79 : Wahyudi Wahyudi1 , Andy R. Mojiol2 , Reni Rahmawati1 , Nursiah1 , Patricia E.Putir1: TINGKAT KERUSAKAN TEGAKAN TINGGAL PADA AREAL BEKAS TEBANGAN DI IUPHHK-HA PT GUNUNG MERANTI, PROVINSI KALIMANTAN TENGAH (Residual Trees Damage Rate at Logged Over Forest in Forest Concession of PT.Gunung Meranti, Central Kalimantan Province) JHT, Admin
Jurnal Hutan Tropika Volume 15 Nomor 2 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i2.2162

Abstract

Timber harvesting activities in forest concession using the Indonesia Selective Cutting and Planting silvicultural (ISCP) system can cause damage to residual trees. The greater the damage of residual trees to be indicator the less effective the activity. This study aims to determine the damage of residual trees caused by harvesting in the logged-over areas using the ISCP silvicultural system. The study used a research plot measuring 40 m x 240 m (0.96 ha) with 5 replications. Each research plot was consisted of 24 sub plots each for the trees, pole, sapling and seedling levels. Sample felled trees were determined as many as 30 trees. The results showed that the average damage caused by harvesting of 1 tree was 6.46 seedlings/ha; 7.17 saplings/ha; 2.13 poles/ha and 2.25 trees/ha. In general, the damage to residual trees due to felling was 11.28% for seedlings; 11.56% for saplings, 12.14% for poles and 11.8% for trees. The level of damage to seedlings, saplings and poles were in the medium category, while the level of damage to the tree level was in the low category. Keywords: Damage, harvesting, residual trees, silvicultural system
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