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Jurnal Penelitian Hasil Hutan
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Articles 3 Documents
Search results for , issue " Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan" : 3 Documents clear
EFISIENSI ENERGI KAYU PADA PROSES PENGERINGAN PAPAN (Waod energy efficiency on timber drying) Nurhayati, Tjutju
Jurnal Penelitian Hasil Hutan Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (19608.116 KB) | DOI: 10.20886/jphh.1993.11.6.228-231

Abstract

The purpose of this research is to study the efficiency wood utilization as an energy source on timber drying. The research was conducted at big and medium scale industries of sengon (Paraserianthes falcataria) wood working which used steam boiler and air duct-fired stove, respectively and at small industry of ramin (Gonisthyllus bancanus) wood working which usedhot water-fired stove.The result indicated that the highest wood/waste energy efficiency obtained was 53 % from big, scale sengon industry which used slabs and trimmings waste as energy source and the lowest one was 14.20% from medium sengon industry.
ANATOMI TUJUH JENIS KAYU DARI SULAWESI TENGAH. (Anatomy of seven Wood Species from Central Sulawesi) Mandang, Y I
Jurnal Penelitian Hasil Hutan Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9325.038 KB) | DOI: 10.20886/jphh.1993.11.6.211-216

Abstract

Wood anatomy of three broad-leaved tree species and four coniferous tree species from Central Sulawesi were observed and described for identification purposes. Fiber dimensions were also measured for evaluation of their quality for pulp making.The three broad-leaved woodspecies (Pouteria firma, Castanopsis javanica and Tristania maingayi) are different in many aspects of wood anatomy so that they are easy to identify. The four coniferous wood species (Agathis philippinensis, Podocarpus imbricatus, Phylocladus hypophylus and Dacrydium beccarii) are similar in many aspects of wood anatomy so that they are difficult to distinguish from each other. More material is needed for furher observation.No single species among the three broad-leaved wood species contain fibers with good quality. All of the four coniferous wood species contain fibers which are moderately good for pulp.
EFISIENSI PENEBANGAN KAYU DI KAWASAN HUTAN DENGAN SISTEM TEBANG PILlH INDONESIA (The efficiency of tree felling at the natural forest areas using the Indonesian selective cutting and planting system) Dulsalam, Dulsalam
Jurnal Penelitian Hasil Hutan Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3842.449 KB) | DOI: 10.20886/jphh.1993.11.6.232-240

Abstract

An investigation of the efficiency of tree felling at forest areas using the Indonesian selective cutting and planting system (TPTI) was carried out at 5 logging companies in Central Kalimantan and 3 other companies in South Kalimantan in 1990. The objective is to find the way increasing the efficiency of tree felling at the natural production forests. For that purpose, data on felled tree volume, actually utilized logs and part of good logs left in the forest were collected. The investigationresults are as follows :1. Considering log diameter of 10 cm and up, the efficiency of improved felling technique can be increased by 6. 23 %.2. By using the improved felling technique, the volume of good quality clear bole logs is increased by 4. 90 %.3. The averages of stump heights between improved and existing felling techniques were 51.07 cm and 114.86 cm, respectively.4. the improved felling technique could increase the quality and volume of log for veneer (from 61.34% to 65. 83%) and for sawn timber (from 10.19 % to 10.45 %).5. It is necessary that the existing felling technical guidance and log administration be improved.

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