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Jurusan Kehutanan Fakultas Pertanian Universitas Palangka Raya Jl. Yos Sudarso, Palangka Raya, Kalimantan Tengah, 73111
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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 7 Documents
 1 
Search results for , issue "Volume 9 Nomor 2 Tahun 2015" : 7 Documents clear
KARAKTERISTIK SPEKTRAL ELEKTROMAGNETIK SPECIES DOMINAN PADA HUTAN RAWA GAMBUT KALIMANTAN TENGAH (Electromagnetic Spectral Characteristics of Dominant Species at the Peat-Swamp Forest at Central Kalimantan): Hendrik Segah1*, Freddy Wijaya1, Laju Gandharum2 dan Hiroshi Tani3 JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.53

Abstract

ABSTRACTThis paper reports the results of the spectral library from dominant trees in peat-forest in Central Kalimantan, Indonesia supported under JST-JICA Project: “Wild Fire and Carbon Management in Peat Forest in Indonesia”. Spectral libraries are commonly established as a means to archive representative signatures of natural materials. Such signatures can then be used to train feature extraction and classification algorithms applied to remote sensing data imagery. Spectral analyses were performed to the 33 dominant species in peat-forest in Central Kalimantan, Indonesia obtained during the field survey measurement (in-situ measurements) and airborne campaign by HYMAP sensor in 2011-2014. We found, each vegetation type has unique spectral signature or characteristics. The shapes of reflectance spectra can be used for identification of vegetation types combine with remote sensing data (airborne and satellite images). Keywords: Spectral library/signature, Peat-Forest, Spectroradiometer, Vegetation and Kalimantan
PEMANFAATAN IJUK DAN LIMBAH PARTIKEL KAYU ALAU SEBAGAI BAHAN BAKU PAPAN PARTIKEL (Utilization of Palm Fibers and Wood Particle Waste of Alau as Particle Board Materials): Grace Sisca, Sarinah, Gimson Luhan JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.54

Abstract

ABSTRACTParticle board is the multiuse materials that could be used as substitute materials of the solid wood as to review light in weight construction, furniture raw material, etc. Wood particle waste of alau is produced by saw mill or wood furniture as the waste, whereas the palm fibers is produced from non forestry plants of palm that grow well at the peat-swamp lands. This research was aimed to analyze the mixed of palm fibers and wood particle waste of alau to produce the particle board materials. Some combination of treatments were tested to produce the valuable particle board. The research results showed that the exact combination between palm fibers and wood particle waste of alau produced the valuable particle board materials with up to standars of JIS A 5908:2003 for review physical properties. The highest density of particle board and its stability dimension were attained at the moment of the composition between palm fibers and wood particle waste of alau namely 25:75 with glue content namely 40% . Keywords: palm fibers, particle board, physical properties,waste of alau
SKRINING ENZIM DARI SAMPEL DAUN JELUTUNG RAWA (Dyera lowii Hook f.) UNTUK ANALISIS ISOZIM SEBAGAI STUDI AWAL KERAGAMAN GENETIK (Screening Enzyme from Leaf of Dyera lowii Hook f. to Isozyme Analysis. The First Study of Genetics Variety) : Tri Suwarni Wahyudiningsih JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.55

Abstract

ABSTRACT Jelutung rawa (Dyera lowii Hook f.) is the commercial and endemic species of peat-swamp forest with sensitive status, therefore the research to analyze its genetics variety is very important. The research was aimed to analyze the seven of enzyme in the leaf of D. lowii that well-marked by the emergence of polymorphic tape pattern consistently. The research was conducted at November to December 2012 in the tree improvement laboratory of Gadjah Mada University. Leaf of D. lowii samples were gotten from D. lowii plantation at the Cilik Riwut Street, nine km from Palangka Raya City. There are seven enzyme system to screening, namely Shikimate Dehydrogenase (SHD; EC 1.1.1.25), NAD(P)H-Diaphorase (DIA; EC 1.6.2.2), Glutamate Oxaloacetate Transaminase (GOT: EC 1.11.1.7), Acid Phosphatase (ACP; EC 3.1.3.2), 6-Phosphogluconate Dehydrogenase (6-PG; EC 1.1.1.44), Esterase (EST; EC 3.1.1), dan Peroxidase (POD; EC 1.11.1.7). Stages of research were preparation, leaf extraction, supernatant, electroforesis “Wendel & Weeden”, colouring, fixation, and gel dehydration. Isozyme was detected using Rf (Relative value from Bromophenol Blue) to make the zymogram. Polymorphic tape pattern consistently was resulted by enzymes of DIA, POD, ACP, EST, and GOT, whereas polymorphic tape pattern inconsistently was resulted by enzymes SHD and 6-PG. Furthermore, the polymorphic tape pattern consistently could to analyze genetics variety. The first study of genetics variety showed that there are four locus at the leaf of D.lowii, namely Est-1, Est-2, Est-3, and Got-1 in the 14 of alel. Keywords: Dyera lowii, enzyme, isozyme analysis, polymorphic
KAJIAN PULPING SODA BEBAHAN BAKU PELEPAH PISANG (Musa paradisiaca) (A Study on Pulping Chemical Methods Based of Banana Leaves (Musa paradisiaca): Miati1), Renhart Jemi 2) , Endra Cipta 3) JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.56

Abstract

ABSTRACTStem of the banana bunch could to be used as basic material to the making of pulp in order to substitute the basic material of wood. This research was aimed to know the cooker solution concentration of NaOH to produce the best pulp rendement. The research using soda process with NaOH as the cooker solution in the three variation of concentration, i.e. 5%, 10%, and 15%. Research result showed that NaOH with concentration of 5% produce the best pulp rendement, namely 85.58%, they were comprised 39.98% of pulp rendement filtrate and 44.6% of uncooked rendement. Keywords: Concentration of NaOH, pulping soda, stem of banana
PENENTUAN TINGKAT BAHAYA EROSI DALAM RANGKA MENENTUKAN PRIORITAS REHABILITASI LAHAN DI BUKIT TANGKILING, KALIMANTAN TENGAH (The Erosion Levels in Order to Determine the Rehabilitation Priority in Bukit Tangkiling, Central Kalimantan): Yusintha Tanduh, Rosdiana, Nursiah JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.57

Abstract

ABSTRACTThe Nature Recreation Parks of Bukit Tangkiling is placed at the Bukit Batu Sub-District, Palangka Raya City, it has the variation of topography that dominated by vegetables (agriculture crops), scrub, bushes, and secondary forest. Its site must be managed carefully in order to totality conservation of biodiversity and its landscape. The aim of this research is to calculate the erosions at the each site of the Bukit Tangkiling Nature Recreation Parks and also it make the distribution map of erosion. The research using USLE method (Wishmeier dan Smith, 1978). Research result showed that vegetables at the site consist of string bean, eggplant, cassava, etc. There were wild-grassland and critical lands that be caused by annual dry-season. The mean annual precipitation namely 27.453 cm, with its maximal at the December namely 45.73 cm; and its minimal at the August, namely 12.08 cm. The mean rains namely 16.9479 days per month with its maximal at the December, namely 24.87 day per month; and its minimum at the September, namely 8.75 day per month. The high value of length and slope is 3.389867 that resulted by vegetable of string bean whereas the lowest value is 1.796597 that resulted by the critical land. The value of management plants and conservation action are 0.7 to 1. Keywords: Erosion, conservation, Bukit Tangkiling, vegetables
SIFAT PEREKATAN KAYU MAHANG (Macaranga hypoleuca) ASAL HUTAN RAWA GAMBUT KABUPATEN PULANG PISAU (Wood Adhesion Properties of Macaranga hypoleuca from Peat-Swamp Forest in Pulang Pisau District): Yanciluk dan M. Damiri JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.58

Abstract

ABSTRACTThis study was aimed to determine the wood adhesion properties of mahang (Macaranga hypoleuca) from Peat-Swamp Forest in Pulang Pisau District, as well as the influence of the axial and radial position of the adhesive properties of mahang wood and wood allotment of mahang for raw material wood processing industry. The research used the Factorial Complete Random Design (CRD) 3 x 2. The first factor was the actial wood position (A) consist of the bottom (A1), the middle (A2), and the top (A3). The second factor was radial position consist of axial (B1) and radial (B2). The data were analyzed using Honestly Significant Difference (HSD). Testing properties of solid wood sliding firmness and constancy gluing wood with ASTM procedure of D 905-49. Research result showed that properties of mahang wood adhesive as follow: firmness sliding radial cross-section namely 57.3 kg per cm2, firmness sliding sectional tangential namely 70.3 kg per cm2, bonding strength of the radial cross-section namely 58.7 kg per cm2, bonding strength tangential cross section namely 63.2 kg per cm2, percent damage to the radial cross-section namely 41.8% and tangential cross section namely 13.3%. There is a relationship of correspondence between adhesive properties and quality of the wood to influence the direction of the axial and radial position of mahang wood. Keywords: Adhesive properties, axial, radial, mahang
POTENSI PEREKAT TANIN FENOL FORMALDEHIDA KULIT KAYU MANGIUM (Potency of Tannin Formaldehyde Adhesive from Acacia mangium Bark): Gimson Luhan JHT, Admin
Jurnal Hutan Tropika Volume 9 Nomor 2 Tahun 2015
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v10i02.59

Abstract

ABSTRACTBark waste of Acacia mangium could to produce the tannin formaldehyde adhesive that useful as material to the wood working industrial. These material are produced from timber estate of Acacia mangium that widely planted in Sumatera and Kalimantan, and also in the other place, because this species is the fast growing species and relatively easy to grow at the marginal site. Acacia mangium bark was predicted 10% of the logs. The study was aimed to determine the quantity of tannin formaldehyde from Acacia mangium bark that could be developed for the adhesive. The study showed that potency of tannins phenol formaldehyde adhesive namely 435.302,35 ton per year. This materials were able to produce the glue namely 1.691,69 million sheets of plywood approximately. Keywords: Adhesive tannin, bark waste of Acacia mangium, glue

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