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Jurnal Penelitian Hasil Hutan
Published by Pusat Penelitian dan Pengembangan Hasil Hutan
ISSN : 02164329     EISSN : 24428957     DOI : 10.20886/jphh
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Jurnal Penelitian Hasil Hutan adalah jurnal ilmiah nasional yang mempublikasikan tulisan yang telah dicermati oleh Dewan Redaksi dan Mitra Bestari di bidang hasil hutan. Tulisan dalam Jurnal Penelitian Hasil Hutan mencerminkan inovasi dan hasil penelitian dasar dan terapan yang berkualitas di bidang hasil hutan. Topik tulisan penelitian hasil hutan meliputi: 1. Anatomi bahan berlignoselulosa 2. Sifat fisik dan mekanik bahan berlignoselulosa 3. Teknologi serat bahan berlignoselulosa 4. Papan komposit bahan berlignoselulosa 5. Biodeteriorasi dan pengawetan bahan berlignoselulosa 6. Teknologi pengeringan hasil hutan 7. Penggergajian dan pemesinan kayu 8. Pengolahan hasil hutan kayu dan bukan kayu 9. Pengolahan kimia dan energi hasil hutan 10. Ilmu kayu dan teknologi hasil hutan Keteknikan hutan 12. Pemanenan hasil hutan kayu dan bukan kayu
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 6 Documents
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Search results for , issue "Vol 9, No 4 (1991): Jurnal Penelitian Hasil Hutan" : 6 Documents clear
KEADAAN JALAN SARAD DAN POHON DITEBANG PADA TEGAKAN TINGGAL DI KAWASAN SEBUAH PERUSAHAAN HUTAN DI RIAU Jurnalis Thaib; Sona Suhartana
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3108.73 KB) | DOI: 10.20886/jphh.1991.9.4.144-149

Abstract

An investigation of skidding performance was conducted at one Forest company in Riau,  in 1988. The results showed that stand density  rangea  from  126 to 190  trees with an average of 158 trees/ha, soft soil .without any rock, land slope ranges from 6,8 to  20,0 % and the trees felled from 2 to 8 with an average of 5 trees/ha. Also it was found that the length of productive skidding road ranges from 91,0  m to 329,8 m with an average of 210,4 m /ha while the length of unprodue- tive skidding road vanes from 2,5 m to 49,9 m with an average of 26,2 m/ha. The ratio between the lengths of unproductive and productive  skidding road is 12,5 %. By considering tractor's life time 20.000   hours,  around  2.500  hours of them are  unproductiue, Relating this figure with owning and operating costs, those unproductive skidding road surely cause quite  large loss.  Besides, the unproductive tractor movements also cause land exposure to the amount of 122,5 m2/ha. All the above disadvantages can be minimized by planning akidding roads ahead and  strictly controlling the operation.
PRAKTEK PEMBUATAN JALAN HUTAN DAN PERMASALAHANNYA DI DAERAH PROPINSI JAMBI Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): 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.1991.9.4.150-157

Abstract

An obseroation on road  construction practice and its problems in two logging company areas in Jambi Province was conducted in  1990. The spcific playeical condition of  the area observed is quite light  and,  therefore, the coat of road construction is low at Rp 5.84 million/km main road grading.Road  densities  are  5. 3 m/ha in the first   and 11.2 m/ha in the second company area. For these roads. land area used amounts to  111.2'4 ha from the total of  19,940 ha logged-over. area or  0.56% in the first and  401.70 ha from the area of  35,021 ha logged-over  area or  1.15%  in  the second company. The ratio of road length to log volume extracted are 0.21 m/cu.m in the  first  and 6.69 m/cu.m  in the second  company.The rate of natural vegetation growth along  forest roads is quite high which is very helpful in retarding soil  erosion potential of the roads.
PENETAPAN UKURAN SASARAN PADA LIMA UNIT PENGGERGAIIAN KAYU JATI DI JAWA TENGAH & JAWA TIMUR Osly Rachman; Sri Rulliaty
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): 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.1991.9.4.179--173

Abstract

Three teak wood sawmilis  in Central Java and two in East  Java have been selected for study on target aize determi- nation Using 100  board samples  from   each sawmill. The result was calculated using formulos for determining lumber tar get sizeThe  rasult  indicates that actual size produced by three sawmills were higher than target size,  ranging from 0.32 mm to 2.11  mm. The actual size produced by  two other sawmills was lower than the tagret size, ranging from 0.61  mm to 6.48 mnt 5.48 mm.  This result indicates  that target size determination is important  to improve  sawing  efficiency.
MEMPELAJARI PENGGUNAAN TUNGKU LIMBAH KAYU SENGON (Parasaerianthes falcataria) UNTUK PENGERINGAN PAPANNYA Tjutju Nurhayati
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): 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.1991.9.4.158-162

Abstract

The  sengon wood waste fired stove was installed, to supily energy into certain length of circulating duct of the dryirlg chamber. The utilization of wet slabs  (moisture content  163.3  percent) in a wood stove produced drying air tempe- rature in the chamber at  30ᵒC.  When  jointing board waste  (moisture content  12.16  percent) was used to fire the stoue the drying temperature  of  70°.C was  achiued.The efficiency  of the wood waste fired  stoue was 39.46 percent, calculated on the basis of the energy produced by sengon wood waste burned, and the energy consumed by the drying  wood i.e 3.641 and 1.397 GJ.
PENGGUNAAN GERGAJI RANTAI PADA PENEBANGAN JATI DAN DAMPAKNYA TERHADAP KEBISINGAN DAN BEBAN KERJA Soenarno Soenarno; Maman Mansyur Idris
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): 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.1991.9.4.139-143

Abstract

It is  obvious that  the use. of  chainsaw in teak felling has some advantages not only in increasing productivity but also in reducing felling defects.Nevertheless, uaing chainsaw in teak felling has also created a lot of inconveniences  to forest worker. Thess inclu de the distruction of physical climatic conditions and heavier phsycological stress  of forest  workers due to combined physical workload, noise and fear of accident effects.Base on the above reasons research on noise and  forest workers' workstress. is needed. this research is intended to determine a better method of felling technique in the efforts  of controlling noise to provide a more favourable conditions for  the workers. This research was  carried  out in Saradan Forest District, East Java.The  results  of the research reveal that both noise and the  workers' streu  rate occurinf at teak felling ia higher than at acceptable by  the  "World medical conventiont"  (Grandjean, 1982). The avercwe noise level rate it about 110 dB(A), and the average forest workers' streu  is about  126  heart beats/min for chainsaW operator and about 98 heart beats/min for   the helper.
PENGARUH PENGERASAN MATA GERGAJI DAN POLA PENGGERGAJIAN TERBADAP. KARAKTERISTIK PENGGERGAJIAN KAYU SENGON (Paraserianthes falcataria) Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): 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.1991.9.4.163-169

Abstract

This paper deals  with  the study of charaetmstlc  and sawing recovery of sengon  (Peraserianthes falcataria). The materials used in  this study consiat  of  12c logs with 200 cm long and diameter ranging from 35,5 -36,5   cm.  Three types. of  sawtooth edge profile. were  prepared  to saw the logs, i.e. full stellite tipped, alternate-one stellits tipped and alternate –twostellitetipped. the power consumption and feed aped produced by each type of sawtooth were observed and analysed. in the study of sawn timber production two sawing patterns were applied.the parameters investigsted compriss recovery, productivity, board composition and visual defect,results of the study revsal that saw blade with alternate two steliite tipped consumes the lowest power and its feeding speed is the highest. in addition the semi quarter sawing yields recouery 4.5 % higher than live sawing pattern.meanwhile.the sawing productivity between two sawing patterns is not significantly different. the live sawing pattern produces 61 % boards of 15 and 17,5 cm wide; whereas semi quarter sawing produces 42% boards of 10 and 12,5cm. wide. the main defects of boards are knots,splits and shakes. 

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