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INDONESIA
Indonesian Journal of Forestry Research
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 23557079     EISSN : 24068195     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Forestry Research (IJFR) was first published as Journal of Forestry Research (JFR) on November 2004. The last issue of JFR was Volume 10 Number 2 published on December 2013. The Journal of Forestry Research has been accredited by the Indonesian Institute of Sciences since 2008. The last accreditation was on 21 June 2013 (accredition number: 538/AU3/P2MI-LIPI/06/2013) which will be valid until 2016. IJFR will be issued in one volume every year including two issues which will be delivered every April and October. This journal is published by Forestry Research and Development Agency (FORDA), Indonesia.
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Articles 498 Documents
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THE RESISTANCE OF WOOD PLASTIC COMPOSITE TO THE DRY-WOOD TERMITE Cryptotermes cynocephalus Light. AND THE SUBTERRANEAN TERMITE Coptotermes curvignathus Holmgren INFESTATION Jasni Jasni; Nurwati Hadjib; Barly Barly; Yusuf Sudo Hadi; Y. Afidudin
Indonesian Journal of Forestry Research Vol 1, No 1 (2004): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2004.1.1.50-59

Abstract

Wood  plastic  composites   (WPC) were made  by impregnating  monomer   and  vinyl acetate monomer  with addition  of  terbutyl peroxide  catalyst. This laboratory  scale experiment  aimed at looking into  the durability of  WPC polymerized  at varying mixture  ratios between  styrene and vinyl acetate monomers,  compared  to the natural   durability of  the corresponding   wood  treated with impralit CKB.  In this  regard,  wood  samples were dried until 10 % moisture  content,   and then  they were put in the tank under  20 mm Hg vacuum was being released.   Styrene  monomer with vinyl acetate  addition was flown to the tank, and the wood  samples were immersed  in the monomer   for  24 hours.   Furthermore,   the wood  samples  were taken  out,  and  wrapped  with aluminum  foil, and then were   put in the oven for 24 hours at 60° C. The  wraps were opened, and the samples were  conditioned.   The  samples were tested  to dry wood  termite  (Cryptotermes cynocephalus Light.),  and the Subterranean  termite (Coptotermes curvignathus Holmgren.).  Investigated factors were (i) wood species consisting of sengon, pine, and rubber wood, and (ii) ratio of styrene to vinyl acetate. i.e.  90/10;  80/20;  70/30;  and 60/40.   For comparison,  each wood samples  treated with  Impralit  CKB  3% and untreated   (unpolymerized)    wood  samples  (a control)  were  also prepared.  The  results showed  that polymer  loadings  in the  sengon, pine and rubber  wood were 118 %, 72 % and  44%  respectively. Increasing  of  vinyl acetate  to styrene  tended  to decrease polymer loading,  the addition  of  10% gave 96% polymer  loading,  20% gave 108%,  30% gave 71 %, and 30% gave 38 % respectively.  It appeared that treatment  of styrene with low vinyl acetate additions  (60:40) had resulted  in consecutively  95.67%  and 97.75 % mortality  of  the dry wood termite  and sub subterranean   termite. This implied  that the treatment  might increase the wood resistance  to the wood destroying insect.
SCRUTINY ON PHYSICAL PROPERTIES OF SAWDUST FROM TROPICAL COMMERCIAL WOOD SPECIES: EFFECTS OF DIFFERENT MILLS AND SAWDUST’S PARTICLE SIZE Rizki Maharani; Tamai Yutaka; Takashi Yajima; Terazawa Minoru
Indonesian Journal of Forestry Research Vol 7, No 1 (2010): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2010.7.1.20-32

Abstract

Physical properties of sawdust (i.e. particle size distribution, particle density, porosity, and water retention) from five tropical commercial wood species (Shorealeprosula, Dryobalanops lanceolata, Dipterocarpus cornutus, Shorea laevis, and Eusideroxylon zwageri)  as prepared in various mill types (i.e. handsaw, sawmill, and milling ) were analyzed. This study aims to look into the relationship and interconnected between the use of different mill types, density of wood species origin and physical properties of the resulting sawdust. Generally, different mill types produced sawdust with different particle size distributions. The use of a handsaw produced a higher proportion of oversized particles (OS) and coarser particle size (CPS) than that of sawmill and milling , while also commonly producing the lowest proportion of fine particle size (FPS). For each wood species, the proportion of OS was lower than that of CPS and FPS. In addition, particle density and water retention produced by handsaw in CPS as well as FPS was the smallest, followed in an increasing order sawmill and milling. Porosity of CPS and FPS was the highest in handsaw-cut sawdust, followed in a decreasing order sawmill and milling cut sawdust. This study showed that the different mill types and particle size influenced the physical properties of sawdust. Further, analysis of influential factors on porosity and water retention using General Linear Model revealed that particle density inflicted a strong influence on porosity, as did particle size on water retention.
POTENCY OF RAMIN (Gonystylus bancanus Kurtz.) AND OTHER COMMERCIAL SPECIES IN PEAT SWAMP FOREST MANAGED WITH TPTI SILVICULTURAL SYSTEM IN BAGAN, RIAU Hendromono Hendromono
Indonesian Journal of Forestry Research Vol 2, No 2 (2005): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.2.89-98

Abstract

Ramin  (Gonystylus bancanus Kurtz.)  is one  of  the  tree  species in  peat-swamp  forest  that  is endangered due to excessive exploitation. The objective of this research was to assess the potency of rarnin and other commercial tree species in primary and logged over peat-swamp forests at Bagan, Riau. The tree stands were inventoried in primary forest of the 2004 and 2006 Annual Work Plan (RKTs) and in  the  1997  and  2001  RKTs  managed  with  Indonesian  Selective Cutting  and  Planting  (TPTI) silvicultural system.  The  result  showed  that  rarnin in  Bagan peat-swamp  forest  was not  evenly distributed. The total number of ramin  in tree stage in primary forests was fewer than that in  logged over forests.  The total number of ramin species at tree stage in primary forest was between 4.5  and 5 trees ha·' with the important value index (IVI) of 10.3  to 12.0%,  whereas the one at logged over forest were between 2.5 and 15  trees ha·' with theM    indices of 7.9 to 20.4%.  Commercial species of swamp meranti (Shorea uliginosaand S. teysmaniana) and balam/ suntai or (Palaqqiumspp.) were dominant at tree stage both in the primary and the logged over forests. Enrichment in logged over forests is not needed since the total number of seedlings and saplings  is enough. The total number of potential core trees in logged over forests was enough for the next cutting cycle. The effort that must be done in logged over forests is to protect them from illegal logging.
AN OPTIMUM DESIGN FOR SEEDLING SEED ORCHARDS TO MAXIMIZE GENETIC GAIN: AN INVESTIGATION ON SEEDLING SEED ORCHARDS OF Eucalyptus pellita F. Muell Budi Leksono; Susumu Kurinobu; Yuji Ide
Indonesian Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2009.6.2.85-95

Abstract

GENETIC GAIN AND PROJECTED INCREASE IN STAND VOLUME FROM TWO CYCLES BREEDING PROGRAM OF Acacia mangium Arif Nirsatmanto; Teguh Setyaji; Sri Sunarti; Dwi Kartikaningtyas
Indonesian Journal of Forestry Research Vol 2, No 2 (2015): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.115 KB) | DOI: 10.20886/ijfr.2015.2.2.71-79

Abstract

Two cycles breeding program of Acacia mangium was practiced by Center for Forest Biotechnology and Tree Improvement Research. Although improved seed from the breeding program have been used in operational plantation, the real amount of gains in productivity was not verified together yet.  This study was aimed to observe realized genetic gain and projected increase in stand volume from the two cycles breeding of A. mangium, and to discuss the implications on plantation productivity and sustainable forestry in Indonesia. Improved seed from first and second-generation seed orchard were tested together with an unimproved seed in genetic gain trial in West Java, with spacing of 3 x 3 m. Measurements were done at three years ages for height, dbh, and stem volume. Realized genetic gain was calculated as the percentage increase of improved seed over the unimproved one. Results of study showed that improved seed performed better growth than the unimproved with realized gain of 5-24% (height), 3-44% (dbh) and 11-90% (stem volume). Improved seed from second-generation outperformed that from the first-generation, with an improvement of 6-16% (height), 3-26% (dbh) and 20-53% (stem volume). Genetic gains increased with increasing ages for height, but it tended to decrease for dbh and stem volume. At given site and silvicultural practices, projected increase in stand volume at 8 years rotation reached 290-325 m3/ha, which is equal to 30-50% of gains. The uses of high genetically improved seed, in combination with intensive silviculture, would provide significant impacts on plantation productivity and sustainable forestry in Indonesia.
DOMINANT HEIGHT AND SITE INDEX MODELS FOR Acacia mangium Willd. PLANTATION Haruni Krisnawati; Yue Wang; Peter K. Ades; Ian W. Wild
Indonesian Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2009.6.2.148-165

Abstract

THE IMPORTANCE OF FOREST AND LANDSCAPE RESOURCE FOR COMMUNITY AROUND GUNUNG LUMUT PROTECTED FOREST, EAST KALIMANTAN Murniati Murniati; Michael Padmanaba; Imam Basuki
Indonesian Journal of Forestry Research Vol 6, No 1 (2009): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2009.6.1.53-73

Abstract

The forest of Gunung  Lumut  in Pasir District,  East Kalimantan was designated  for a protection  forest in 1983. It is surrounded  by 15 villages  and one settlement  lies inside it. Communities in those villages are dependent upon the landscape and forest resources mainly for non timber forest products. This study was focused on the perception of the communities on the importance of the landscape and forests. The study was conducted in two settlements, located  in and outside  (near)  the protection  forest,  namely  Rantau  Layung  Village  and Mului  Sub-Village.  Data collection  was undertaken through  general field observations, key- informant personal  interviews and focus group  discussions.  In Rantau  Layung, the most important land  type  was rice  field, whereas  in Mului  was forest.  There  were  13 and 14 use categories  of landscape  resources  in Rantau  Layung  and Mului,  respectively, such as food, medicine,  constructions and source of income.  People in Rantau  Layung  and Mului ranked  plants  to be more  important than  animals.  People  also considered  products  from wild  resources  to be more  important than  those from cultivated  and purchased  sources. Communities living  in both  settlements  considered  the future  uses of forests to be the most important as compared to those of the present and past. They  suggested that sungkai (Peronema canescens) and telien (Eusideroxylon zwageri) to be the most important plants while payau  (Cervus unicolor) and telaus (Muntiacus muntjak) to be the most important animals. People used the wildlife mainly for food and source of income. They also identified important and potential  resources for economic  development in the area, i.e. ecotourism  and hydro- power for electric  generator.
EARLY GROWTH AND STAND VOLUME PRODUCTIVITY OF SELECTED CLONES OF Eucalyptus pellita Teguh Setyaji; Sri Sunarti; Arif Nirsatmanto
Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2016.3.1.27-32

Abstract

Using current technologies, several forest plantation companies in Indonesia are pursuing clonal forestry program with E. pellita to increase plantation productivity using selected clones. This paper evaluates the early growth and stand volume productivity of  selected clones of  E. pellita as part of  a breeding program for pulpwood.  Two clonal trials of  E. pellita were established in Central Java with two different plot configurations: single tree-plot and multiple tree-plot. Trial evaluation was done at two years age involving tree height, diameter, stem volume and stand volume. Result show that among the clones there were significant differences for all traits assessed. All of  the tested clones exceeded the control seedling of  F-1 generation by 9-50% for height, 10-36% for diameter and 22-137% for stem volume, respectively. Clonal repeatability ranged from 0.7-0.9, with corresponding individual ramet repeatability ranged from 0.2-0.4.  Overall stand volume productivity at given age reached 15 m³/ha.
RADIAL VARIATION IN MICROFIBRIL ANGLE OF SUPER AND COMMON TEAK WOOD Krisdianto Krisdianto
Indonesian Journal of Forestry Research Vol 5, No 2 (2008): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2008.5.2.125-134

Abstract

PARENT IDENTIFICATION IN A MULTI LOCATION TRIAL SEED ORCHARD OF ACACIA MANGIUM USING MICROSATELLITE MARKERS I. L. G. Nurtjahjaningsih
Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2016.3.1.19-26

Abstract

Variation of  parent gametes' contribution might affect the growth patterns among offspring produced from seed orchards. This paper studies the mating system statuses and to identify parent trees that produce good growth performance of  offspring in seedling seed orchard of A. mangium. The study was conducted in two seed orchards, i.e. a first generation seedling seed orchard (F1 SSO) of  A. mangium, used as the parent population hereafter and a multi location trial (MLT) as an offspring population. Based on 10 microsatellite markers, mating system in the F1 SSO was under panmictic equilibrium condition. The good growth trees in the MLT originated from various parent genes contribution in the F1 SSO. Several behaviors were observed: a). the best trees in MLT dominantly originated from singlepair trees, between maternal and paternal trees, in F1 SSO; b). a maternal tree was pollinated by two paternal trees; c). a paternal tree pollinated several maternal trees. Flowering synchronization and genetic compatibility among trees might be responsible for these mating system patterns. In order to maximize seeds production, studies on male and female flowers characteristic should be employed to assess flowering synchronization among individual trees in the seed orchard.

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