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Jurnal Penelitian Hasil Hutan
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Search results for , issue " Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan" : 2 Documents clear
PERBANDINGAN PENYARADAN KAYU DENGAN SISTIM MANUAL DAN EKSAVATOR DI HUTAN RAWA BAGIAN Ill : KAJIAN TEKNIS, EKONOMIS DAN EKOLOGIS Endom, Wesman; Basari, Zakaria
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6432.656 KB) | DOI: 10.20886/jphh.2001.19.1.19-39

Abstract

Modified excavator is one of heavy equipment that might be useful and environmentally friendly to be used for operational logging extraction especially in swampforest. It is therefore besides convenient and powerful, it is also helpful as an effective alternative in anticipating the weakness of manual system which is called "kuda-kuda.Related to the case, a study by implementing both manual system and excavator was done in a forest concession, i.e. PT. Inti Prona, at cutting block covering the 1997/1998 area that located under management of Sub Forest District Dumai, Riau Province. The study covered aspects of extraction productivity, extraction cost, and logging impact on the possible damage of residual forest stands due to the implementation of both systems.The result showed that the average of logs extraction productivity was 16.80 m3.hm per hour. With respect to the ecological impacts, it was found that residual forestst and damage occurred at 17.29% per ha (at pole stage) and 17.17% per ha (at tree stage). Further, operation cost hauling was assessed at Rp 5,600 per m3 of extracted log.Meanwhile, manual log extraction revealed productivity at 2,46 m3.hm per hour. Ecological impact due to constructionsof manual road extraction system and landing site (TPn) was the occurrence of damage to pole and tree stages at 28,25% and 34,33%, respectively. In the same occasion, cost of manual extraction was about Rp 23.000 per m3.Keywords : excavator, productivity, damage, tree, poles and extraction cost
ANATOMI DAN KUALITAS SERAT SEMBILAN JENIS KAYU KURANG DIKENAL ASAL KALIMANTAN TIMUR Mandang, Y I; Sudardij, Usep
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8986.095 KB) | DOI: 10.20886/jphh.2001.19.1.41-67

Abstract

One way to overcome the shortages of raw material for wood based industries in Indonesia nowadays is to utilize the lesser known wood species. Therefore, the basic properties of these lesser known wood species should be studied. Wood anatomy of nine lesser known wood species from East Kalimantan have been observed and described for identification purposes and for evaluation of their properties and then appropriate uses.For identification purpose several main features have been noted : 1) Perforation plat scalariform in Mastixia trichotoma and Drypetes sp.; 2) Closely spaced parenchyma bands and radial intercellular canal in Ficus variegata; 3) Parenchyma reticulate in Drypetes sp, Diospyro macrophylla and Koilodepas sp.; 4) Fiber septate in Glochidion philippicum; 5) Rays almos exlusively homocelullar with gum-like deposite in vessels o/Lansium sp.Seven out of nine wood species examined containfibers of medium quality for pulp and paper among others : Blumeodendron kurzii, Ficus variegata and Mastixia trichtoma. The other two species contain fibers with poor quality. Two species, Drypetes sp. and Koilodepas sp. have light colour and decorative appearance and with considerable strength to be used as raw material for fancy furniture and decorative panel. Ficus variegata has anatomical structure which allow it too easily be peeled in to fine decorative veneer for plywood.Key words : Lesser known wood species, wood anatomy, identification, fiber quality.

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