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INDONESIA
Jurnal Penelitian Hasil Hutan
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 02164329     EISSN : 24428957     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management
Arjuna Subject : -
Articles 1,559 Documents
 142   143   144   145   146 
HUBUNGAN SIFAT DASAR DAN SIFAT PENGERINGAN LIMA JENIS KAYU ANDALAN JAWA BARAT Efrida Basri; Nurwati Hadjib
Jurnal Penelitian Hasil Hutan Vol 22, No 3 (2004): 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.2004.22.3.155-166

Abstract

This study was intended to investigate the relation between basic properties and drying properties of five priority wood species, i.e. pulai kongo (Alstonia congensis Engl.), kibawang (Azadirachta excelsa Jack.), salamander (Grevillea robusta A.Gunn), mahoni (Swietenia macrophy/la King), and suren (foona sureni Merr.)from West Java. The air drying methods used were 29 - 35°C temperatures and high temperature drying (JOrJ'C). The basic properties included basic density, shrinkage, modulus of rupture (MOR), compression parallel to grain (Cl/), wood strength and anatomical structures. The drying properties included drying duration and wood quality. The maximum-minimum temperature and humidityfor each species were based on defects resulted in high temperature drying.The results showed that the drying properties were significantly affected by basic density and wood anatomical structure. Following the drying qualities and basic properties, the optimal drying schedules for pulai kongo and mahoni wood at 70 - 95°C temperature and 29 - 75% humidity; kibawang wood at 65 - 88°C temperature and 29 - 78% humidity; suren wood at 65 - 9rJ'C temperature and 29 - 78% humidity; and salamander wood at 58 - 83°C temperature and 27 - 82% humidity. These drying schedules, however, still need further trial prior to their implementation in the factory-scale operation. Based on basic density, strength class, and decorative value, kibawang, salamander, mahoni and suren wood were suitable forfancy furniture.
PENGAWETAN TIGA JENIS BAMBU DENGAN METODE RENDAMAN DINGIN Barly Barly; Pipin Permadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): 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.1987.4.1.26-30

Abstract

Cold soaking tests of three bamboo species in Formula 7 preservative  were performed.  Results indicated that cold soaking  in one day with 5%  Formula 7 gives satisfactory  penetration  and retention in the specimens of betung and andong species. The specimens of  tali species gave satisfactory  results when treated in three days.
PENGARUH PENGERASAN MATA GERGAJI TERHADAP BEBERAPA SIFAT PENGGERGAJIAN Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 5, No 5 (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.1988.5.5.279-286

Abstract

Fifteen  mahogany and  six  agathis logs in fresh  cut  condition were sawn  into  boards  by a  band saw  machine.  Each wood  species  was  sawn  using  three  saw blades  with  different  cutting   edge  hardness  i.e. hand  swaging,  alternate  stellite .  tipping  and  full  stellite   tipping.   Sawing  properties recorded include  power consumption,  cutting   rate  and  sawing  productivity    for each  wood  species and cutting  edge hardness.The  results of  study   showed   that  wood  species  had no significant  difference   in terms  of power   consumption   and cutting  rate.  Meanwhile, sawing productivity   of agathis was higher than mahogany.Furthermore, the cutting  edge hardnes had significant  effect on sawing properties. It  is found that the saw blade with alternate stellite tipping reduced power consumption, and  increased  the  cutting rate and productivity. 
EFISIENSI PENGANGKUTAN DAN MUAT BONGKAR KAYU DI SUATU PENGUSAHAAN HUTAN DI KALIMANTAN TENGAH Dulsalam Dulsalam; Arifin Suzanto
Jurnal Penelitian Hasil Hutan Vol 15, No 1 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1997.15.1.7-17

Abstract

Penelitian efisiensi dan muat bongkar kayu telah dilakukan di satu HPH di Kalimantan Tengah pada tahun 1994. Tujuan penelitian adalah untuk mendapatkan informasi tentang eflsiensi kegiatan pengangkutan dan muat-bongkar kayu guna meningkatkan produktivitas kerja. Data volume kayu yang diangkut, dimuat dan dibongkar serta waktu kerja pengangkutan, muat dan bongkar dikumpulkanDari hasil pembahasan dapat disimpulkan bahwa rata-rata pengangkutan kayu oleh, kelompok truk A dan truk B adalah 784,09 m3/jam dengan efisiensi sebesar 53,22% dan 987,87 m3/jam dengan efisiensi sebesar 57,71%. Selain itu rata-rata muat bongkar adalah 12,82  m3m/menit dengan tingkat efisiensi sebesar 81,88% dan 73,73 m3m/menit dengan tingkat efisiensi sebesar 56,04%. Untuk meningkatkan produktivitas ddan efisiensi kegiatan pengangkutan, muat dan bongkar kayu dapat dilakukan melalui persiapan masing-masing kegiatan yang memugkinkan kegiatan tersebut dapat berjalan dengan baik.
PROSPEK PENGEMBANGAN TANAMAN SUKUN DITINJAU DARI KANDUNGAN KIMIA DAN ASPEK LAINNYA Gusmailina Gusmailina; Sri Komarayati
Jurnal Penelitian Hasil Hutan Vol 12, No 3 (1994): 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.1994.12.3.77-83

Abstract

Breadfruit  (Artocarpus artilis  Forsberg) is  a multipurpose tree species  which  is suitable  to be extensified.  The report  deals with. chemical analysis  of  breadfruit wood. The  results indicated  that  cellulose contenl  53.58 %;  lignin cotuet 28.09%;  pentosan    content 14.00%;  solubitity in cold  water 3.13  % ;  in hot waler  4. 14 %;  alcohol-benzena 3. 40% and in NaOH 1 %  20. 03 % ,  moisture content 10.14 %; ash comesu 3. 60%; silica content  3. 10% and calorific value 4368.82  kcal/gr. Baseak on the components,  breadfruit  wood  can  be utilized  as sources of raw material for pulp  and paper  or rayon.  Besides it is also an alternative for food source and source of income for rural people.
SIFAT PEMESINAN LIMA JENIS KAYU DOLOK DIAMETER KECIL DARI JAMBI Jamaludin Malik; Osly Racbman
Jurnal Penelitian Hasil Hutan Vol 20, No 5 (2002): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2002.20.5.401-412

Abstract

This paper deals with a study in machining properties of small diameter log of five wood species, i.e. mahang (Macaranga pruinosa Muell. Arg.), medang kuning (Litsea sp.), bayur (Pterospermum diversifolium Bl.), balam merah (Palaquium gutta Baill.), and merkubung (Macaranga gigantea Muell. Arg) using LPHH (1976) Standard and modified ASTM D 1666-64.The results revealed that in planing aspect, mahang, medang, balam, and merkubung belonged to class I (very good); Bayur to class II (good). In shaping aspect. mahang and balam belonged lo class 1, bayur and merkubung to class II. and medang to class Ill (moderate). In turning aspect, balam belonged to class I and mahang lo class V; medang, bayur and merkubung lo class II. In boring aspects, medang and bayur belonged to class II; balam to class III; mahang and merkubung to class IV (poor). In sanding aspect all wood species belonged to class I. All these wood species may be suitable for furniture and other secondary industry.
SERANGAN KUMBANG AMBROSIA PADA KAYU SUNGKAI (PERONEMA CANESCENS) Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 7, No 2 (1990): 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.1990.7.2.71 - 75

Abstract

Susceptibility of sungkai wood (Peronema canescens) to ambrosia  beetle infestations   was studied. Fresh cut sungkai poles, measuring about 20 cm in diameter and 75 cm in length, were selected  for the test. Six pole  treatments were chosen each of which was represented by five replications. The  test poles  were kept under shade near felling site.   Observations were respectively made for the  number  of  ambrosia  beetle tunnels  occuring  on  the pole  surface  after  3, 6, 9, 15, and 40 days. The  development pattern of the beetle  gallery system, based on  number  of  tunnel  showed  up  on some  peeling  off areas of some  consecutive  depth  of  the heaviest  infested  test pole,  was also observed.The  result shows that unbarked (with and without  flint kote) poles are practically   unattack by the borer. Poles treated with ethanol (flint-koted barked  and unbarked) were  not  attacked until  day  9. The  most  severe attack  occurs on  the  barked  poles  (with  or  without   flint kote) Although the  attack  practically  does not  seem to occur  until day 21. Regression equation Y =27,65 + 6,93X - 5,51X , where Y =number of tunnels found on each peeling  area and  X  = depth  of peeling  (cm), represents  the development   pattern  of  the beetle galleries within  the log.   
HASIL DESTILASI KERING BEBERAPA JENIS KAYU INDONESIA Tjutju Nurhayati Hartoyo
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.1988.5.3.136-142

Abstract

 The  chemical  degradation of  wood  products  obtained by  destructive distillation in this  experiment are charcoal, pyroligneous liquor, wood tar and fuel gas. Pyroligneous  liquor  contains mainly water, acetic  acid and methanol. Wood tar is very complicated  phenolic  compound   and contains  creosote  oil  and pitch.The  results  of  destructive  distillation   of  45  wood  species  from  East  Kalimantan,   lrian  and  Maluku vary  widely. Charcoal yield ranged from 19.81to  41.24   percent,  pyroligneous     liqour  from  40.29   to  66.12 percent   and  the yield  tar  from  5.42  to  20.60 percent. Chemical  composition of  the distillates  indicated  that  acetic  acid content ranged from 1.19 to 9.53   percent, methanol ranged  from  0.22 to 3.75 percent,  phenol ranged from  0.10 to 1.62 percent   and pitch ranged  from  2.06 to 11.53  percent.The result  of  proximate    analysis  of  charcoal  indicated   that  moisture   content   ranged  from  1.12  to  6.85  percent, vovalite matter  from  11.29 to 29.20  percent  and ash ranged  from  0.23 to 7.11 percent.
EFISIENSI PEMANFAATAN KAYU MANGIUM PADA BERBAGAI TEKNIK PENEBANGAN, SIKAP TUBUH DAN KELERENGAN LAPANGAN: STUDI KASUS DI SATU PERUSAHAAN HUTAN DI KALIMANTAN SELATAN Sona Suhartana; Yuniawati Yuniawati
Jurnal Penelitian Hasil Hutan Vol 26, No 1 (2008): 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.2008.26.1.41–56

Abstract

Teknik penebangan yang tepat guna dengan memperhatikan sikap tubuh penebang serta kondisi kelerengan diduga berpotensi dapat menghasilkan produktivitas dan efisiensi pemanfaatan kayu yang tinggi serta biaya produksi yang rendah. Penelitian ini dilaksanakan pada bulan Juni 2007 di satu perusahaan hutan di Propinsi Kalimantan Selatan dengan tujuan untuk mengetahui pengaruh dari kelerengan (≤ 15% dan > 15%), sikap tubuh (jongkok, membungkuk dan berdiri), dan teknik penebangan (konvensional dan serendah mungkin) terhadap peningkatan pemanfaatan kayu mangium. Untuk menetapkan teknik penebangan yang disarankan kedua teknik penebangan dibandingkan dengan menggunakan analisis rancangan acak lengkap faktorial petak terbagi (split plot) 2x2x3. Hasil penelitian menunjukkan bahwa : (1) Dengan menerapkan teknik penebangan serendah mungkin pada kelerengan ≤ 15% dan > 15% dengan sikap tubuh jongkok dan membungkuk dapat meningkatkan efisiensi pemanfaatan kayu sebesar 14,5% yang setara dengan Rp 5.140.642.080/tahun/ perusahaan dengan realisasi tebangan per tahun sebesar 633.084 m3 dan menurunkan tinggi tunggak sebesar 2,6 cm di mana tinggi tunggak terendah yang dapat dicapai adalah 10,1 cm; dan (2) Dilihat dari aspek produktivitas dan biaya produksi, penerapan teknik penebangan konvensional dengan sikap tubuh membungkuk pada kelerengan ≤ 15% adalah lebih baik daripada teknik serendah mungkin. Namun demikian dengan memperhatikan butir 1, terbuka peluang bagi perusahaan untuk menerapkan teknik penebangan serendah mungkin.
KERENTANAN BEBERAPA JENIS KAYU TERHADAP SERANGAN KUMBANG AMBROSIA Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 10, No 5 (1992): 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.1992.10.5.156 - 159

Abstract

Ambrosia  beetles  belong to the most destructive wood borers  that attack fresh cut logs. To determine the damage of some wood species caused by the pests, a field study was conducted by calculating the intensity  of the beetle infestation on the surface of logs in a log yard of a logging operation, and on the surface  of cores of peeled logs of a plywood mill.Observations on the yard showed that most of the logs had been severely  damaged by the beetles. Hundreds  of holes per-square meter were found on the surface of the logs. Meranti (Shorea  spp) logs might  belong to the most susceptible ones, and then consecutively  followed by the bangkirai (S.laevifolia),   mersawa (Anisoptera   spp), keruing (Dipterocarpus spp), and others. Only few logs seemed to be intact.Many holes of the beetle infestation were also appeared on the surface of cores of the meranti  species, but not so on the keruing's.  That  could be implied  that the beetles attacking the meranti  are able to tunnel  very deep, to reach the heart of the wood group.

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