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Jurnal Penelitian Hasil Hutan
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PENGARUH JENIS KAYU DAN KOMPOSISI PEREKAT TAHAN CUACA TERHADAP SIFAT PAPAN PARTIKEL DUA JENIS KAYU HUTAN TANAMAN INDUSTRI Kliwon, Suwandi; lskandar, M I; Sutigno, Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1988.5.3.131-135

Abstract

This  paper  deals  with  an experiment   on  the effect of  two  timber  estate  wood  species  i.e. jeungjing  (Albizia.falcataria  Back),  tusam  (Pinus  merkusii Yung  et de  Vries)  and  the  composition   of  weather  resistance  resin  (phenol  formaldehyde)  on the properties  of particle  board.All  wood  samples  were obtained  from  West Java.  The sample  cut  into 2 x 2 cm, 4 x 4 cm and 6 x 6 cm with 5 mm thick, respectively. Wood particles were glued with phenol   formaldehyde resin. Particle  board  were  made  with  3 glue composition  ( 10%, 12%  and  14%)   based on dry  weight of wood particle  and 3 wood particle  dimension   (0.5  mm  x 20 mm x 20 mm,  0.5 mm x 40 mm x 40 mm  and 0.5 mm x 60 mm  x 60 mm).The properties  of particle  board  were  tested  with  Indonesia  Industry  Standard  (SIl.  0797­83).The  result  indicated that:  The physical  and  mechanical  properties  generally  met  Indonesian  Standard.  Analysis  of variance  for  internal    bond,   shear  strength  and  bending  strength  were significant  different on  wood  species, particle  size and  the portion of  phenol   formaldehyde liquid  resin. The  portion of  14%   phenol   formaldehyde  liquid  resin  based on the  dry  wood  particle,   its physical   and  mechanical   properties   were  best,   compared   with  others portion   of phenol   formaldehyde  liquid resin (10%  and 12%).
PEMBUDIDAYAAN JAMUR KUPING PADA SEBELAS JENIS KAYU Suprapti, Sihati
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3335.374 KB) | DOI: 10.20886/jphh.1988.5.3.101-103

Abstract

he  ear mushroom,   Auricularia polytrica (Basidiomycetes: Auriculariaceae)   was cultivated   on  logs of eleven  wood species,  i.e.   hamerang  (Ficus  grossularoides Burn, f.), jeungjing  (Albizia  falcataria (L.)   Fosb.),  kaliandra (Calliandra calothyrsus Meissn.),  kihuut (Vernonia  arborea   Ham.), kipiit (Maesa ramentacea Wall.), kiwates   (Eurya  acuminata AP. DC.),  manii  (Maesopsis eminii  Engl.),   sehang (Ficus  padana  Burn.  f.),   seuseureuhan   (Piper  aduncum  L.),   teureup  (Artocarpus  elastica  Reinw.)   dan  tusam  (Pinus  merkusii Jung  et de Vr.).   The logs were kept   slanted  on an angle of ± 60°  with bamboo  supports   in a mushroom  house,  at Gunung Bunder  forest  complex,  Bogor.  The mature  mushroom  were harvested daily  after  the growth  of  the fruiting  body.The  logs start  producing   fungus   two  months   after  inoculation.   The  average yield per  log during  the seven  month observation   was 412.15  g  (sehang),  302.43  g  (manii),   251.6   g  (seuseureuhan),   243.6 g  (kihuut).   The  lower  yield   was 28.85  g (kiwates),  12 g (jeungjing) and 8.85  (tusam).After seven  month  observation,  the higher total yield  was obtained  from  manii (83.18  kg),  seuseureuhan  (79.97 kg), sehang  (76.91 kg),  kihuut   (69.09 kg)  perm3 of  log. The  lower  total  yield  per m3 of  log was obtained  from  kaliandra (29.35 kg),  teureup (22.75 kg),  kiwates  (11.98 kg),  Jeungjing  (4.45kg) and the lowest  total yield  was on tusam  (1.87 kg). 
SIFAT KAYU LAPIS PINUS DENGAN BEBERAPA MACAM KETEBALAN Kliwon, Suwandi; Iskandar, M I; Sutigno, Paribotro
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4821.811 KB) | DOI: 10.20886/jphh.1988.5.3.157-161

Abstract

Experimental plywood  panels   were  made  from   bolts  of  tapped  and  untapped Pinus  merkusii  trees  obtained   from East Java.  The  bolts  were rotary peeled   into  veneers  of  1.5   mm,  2.0  mm  and 3.0  mm  thick.  Veneer  of  1.5 mm  was  exclusively   used  as face  veneer  and  others  for  core. Plywood   panels   were  glued  with  urea  formaldehyde resin. Plywood were made  with 5 thickness variation (5.00 mm, 6.00 mm, 7.5 mm, 9.0 mm  and 12.00  mm).                                    The  physical   and  mechanical  properties   of  all panels   were  tested  according   to  the ASTM   standard,  and  bonding strength   of  plywood  was  tested   according  to  Indonesian,   Japanese  (JAS)  and  Germany (DIN)  standards. The  results indicated that  there  is no  significant   difference   in  moisture   content,   density   of  plywood  made  tapped  and  untapped pine   wood.                                                                                                                 Mechanical  properties   of  plywood (bending  strength, tensile  strength   and  compression   strength)   were significant difference   made of tapped  and untapped  pine  wood  also vice versa with  its thickness variation.Bonding  of glue  of plywood  there  is no significant  difference made  tapped  and untapped  pine  wood. Only plywood which tested  its  bonding  strength   using  Germany   standard  indicated  significant  shear strength  of plywood  with  thick­ ness 5.00 mm  is better  than that  of  the 6.00  mm  thickness.Modulus  of rupture  and compression  strength  of  tapped pine plywood are better than the untapped one.
POTENSI JALAN HUTAN DALAM AKSELERASI EROSI TANAH DI KALIMANTAN BARAT Tinambunan, Djaban
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8944.936 KB) | DOI: 10.20886/jphh.1988.5.3.104-113

Abstract

A  study   on  the potential  of  forest   roads for  accelerating  soil  erosion on was carried  out  at four logging  companies in  West Kalimantan  in 1987.  Road  elements measured  in the  field  are those  related  to  the Universal Soil Loss Equation factors such as road openings,   surfaces,  slopes, and  ditches, culverts,  cuts,  fills, diversion  ditches,  and  the  incidence  of vegetation.                                                                                                                            The  results  showed   that  forest  soil  disturbances   caused  by  road  construction   create ground  condition   which  has high potentials   for  accelerating  erosion.   Factors  that  caused  this problem,   as identified   in the  field,  are: log and steep slopes,  wide ground  openings,  and  bare soil surfaces,   in addition  to  the  originally  sensitive  to erosion  soil  type,  and  hot and wet weather.Further  study   is necessary  in order  to  find  the real amount   of soil erosion occured  in forest  roads in West Kalimantan. Qualitatively  it is known  to be  high but  quantitatively   it needs  to  be found
PENGARUH PENYADAPAN DAN KADAR PEREKAT TERHADAP SIFAT PAPAN PARTIKEL TUSAM Memed, Rozak; Sulastiningsih, I M; Sutigno, Paribotro
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5382.855 KB) | DOI: 10.20886/jphh.1988.5.3.151-156

Abstract

The  result of  a study  on  the properties   of particle  board made  from  pine  wood  is reported  in this paper.  The pine as raw material  was classified  into  three groups  i.e.  tapped,  untapped, and combination of  them. The particle  board was manufactured by using urea formaldehyde   resin with  four  levels i.e.   6%,   8%,   10%,  and 12% by weight of wood  dry  basis.The  result  reveals  that  the  average density of  particle board  made of  tapped,   untapped,   and  combination  of  them is 0.61  g/cm3,  so that  it  can be classified as medium  density  particle  board.  The properties of particle  board were affected by both  tapping  and glue proportion.   However, density  and internal bond were affected by glue proportion  but  not  by the raw material.Except for water absorption, overall properties of particle  board made  from tapped pine  appeared to have superior properties  than that from  untapped  one. 
EMISI GAS FORMALDEHIDA DARI BEBERAPA TINGKAT KETEBALAN KAYU LAPIS Kliwon, Suwandi
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2427.447 KB) | DOI: 10.20886/jphh.1988.5.3.128-130

Abstract

In  this paper  the  determination    of  formaldehyde    gas emission   from  plywood  is presented.   Six  samples  were colected  from  several plywood  factories   in Indonesia  two  samples  were made  by  the center   for  Forest  Products  Research and Development   Laboratory  in Bogor.The  results showed  that  the amount   of  formaldehyde   gas emission  from  plywood  varies from  3.080  ppm  (3.6 mm thick) to  9.933 ppm (for 18.0  mm thick)
EVALUASI BAHAN BAKU INDUSTRI ARANG DI KESATUAN PEMANGKUAN HUTAN (KPH) TANJUNG PINANG Purnama, Boen M; Subandi, Subandi
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4984.73 KB) | DOI: 10.20886/jphh.1988.5.3.123-127

Abstract

The  appraisal  of  charcoal  raw  material  was conducted   in  Tanjung  Pinang,  Province  of  Riau.   The  study   showed that  Bakau  (Rhizophora sp.)   is the only  species  used  for  charcoal making, whereas, Nyirih (Xylocarpus sp.) is widely used as starting fuel.                                                                                                                                The amount  of  bakau wood  required per kiln per batch  was 71.1ton.  Rough  estimate  on total  bakau wood  required per year  was 178,515 cu.m., while  available raw material only  43,181  cu.m/year. There seems to be a remarkable  shortage of  raw material of  this  time.  Most  of  the  charcoal manufacturer,  at the time  of survey,  adjust  the production capacity  by reducing  the number  of operation  or by obtaining  new raw material from  neibouring  areas
KEANEKARAGAMAN JENIS DAN INTENSITAS SERANGAN RAYAP TANAH DI TIGA TIPE TANAH DI AREAL BEKAS KEBUN KARET Sumami, Ginuk; Ismanto, Agus
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3664.332 KB) | DOI: 10.20886/jphh.1988.5.3.114-117

Abstract

This  paper  deals   with  a study  on  the  infestation   intensity  of subterranean   termites  on three soil types  in clear felled rubber plantation areas in West Java. The soil types  predominating the  areas are  Red  Podzolic,  Brown Latosol  and Dark Grey  Grumusol. The  results  reveal   that  four  species  of  termite  Microtermes insperatus Kemner,   M. incertoides Holmgren, Macrotennes gilvus   (Hagen)  and  Capritermes buitenzorgi  Holmgren   are found   in these  areas pie  termites   were  mostly found  on  the  Dark  Grey Grumusol   soil,   and  the  least number  of  termite  was found  at the Red Podzolic  soil.The  results  also reveal  that  the  soil  type  gave significant  effect to  the  infestation   intensity  of subterranean   termite, but  it did  not give any effect  to the community  of the termite. 
PERCOBAAN PEMBUATAN LAK KUNING DENGAN PROSES PELARUTAN Lukman, Abdul Hakim; Silitonga, Toga
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3139.773 KB) | DOI: 10.20886/jphh.1988.5.3.148-150

Abstract

 Shellac  can  be produced   by two different procedures,  namely  heat process  and solvent process:  Ordinarily, domestic shellac produced by heat process,  while imported  one (from  India)  by solvent process.  Solvent  process  yields shellac much purer  than heat processed,  with  relatively  better properties.The physico­chemical   properties  of shellac produced   in this experiment,   i.e.:  moisture  content 2. 36%, ash content 0.15%, matter  soluble  in water  0.43%, matter soluble in cold  alcohol  97.86%,  acid number  46.81 and Iod number  16.39. Shellac  from   fabric  manufacturing   have  its properties i.e.: moisture  content  4.03%,  ash content   0.27%,  matter  soluble in water 3.26%,   matter  soluble  in cold alcohol 89.14%, acid number  41.01 and Iod  number  31.35.Result   of  LSD  test  between   experiment   shellac  and  shellac  from  fabric  are reveal highly  significant  different for ash  content,   matter  soluble  in  water,   matter  soluble  in  cold  alcohol  and Iod  number, but  is not  significantly different for  the other properties. 
SIFAT VENIR DAN KAYU LAPIS LIMA JENIS KAYU HUTAN TANAMAN INDUSTRI Rozak, Memed; Iskandar, M I; Sutigno, Paribotro
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4222.489 KB) | DOI: 10.20886/jphh.1988.5.3.143-147

Abstract

Five  Indonesian wood species were investigated for their veneer  and plywood properties.    These species  include are  meranti merah  (Shorea  stenoptera  Burck.),   akasia (Acacia magnium  Willd.),  ampupu T (Eucalyptus urophylla), ampupu  A (Eucalyptus  urophylla) and ekaliptus  (Eucalvptus platiphvlla F.v.M).                    .                                                                             Four  wood species were peeled  in cold condition.  Only ekaliptus  was found  unsuitable  for peelling due  to high density and  the  interwoven nature  of  the fibers. Veneer  of 1.5 mm  thickness could be produced satistactorily at a cutting angle between 90o­92°.                                                                                                                                                                                                    Average  shrinkage of  the  veneer  is  8.28%.  Average swelling  from oven dry  condition  to completely saturabed is 3.76%. Water resistance bonding  strength  for all wood  species studied  was m conformity   with the  Indonesian,  Japanese, and German standards.  Average thickness  reduction  due to pressing  pressure during plywood   making is  0,24 mm.               .Average  specific  gravity of  the plywood  appeared  to  0.048 be percent higher  than  that  of  the  wood  from  which they  are made of.

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