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Wesman Endom

Pusat Penelitian dan Pengembangan Hasil Hutan

Author-ID : 2621809

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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KAJIAN PENGGUNAAN KAPASITAS TRAKTOR KOMATSU D85E- SS DALAM UPAYA PENINGKATAN PRODUKTIVITAS PENYARADAN Wesman Endom; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 13, No 6 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

This research was aiming at indentifying the tractor skidding capasity in logging operation in the natural production forest. The tractor observed was Komatsu D85E-SS. and in this study the specific gravity of 0.8 for all species was assumed.The results shows that the capasity of skidding was about 14. 7 ton or equal to 18, 40 m log. However, it was found that from 52 observations, 8% were done under the 20% capacity, 42% of the skidding were done under 21-40% capacity, 25% were done under 40% capacity and 8% were done by winching. .Those figures indicate that the skidder capacity has not yet fully utilized. Therefore, the possibility to increase the volume of skidding is widely open, meaning that the logging wastes can be overcome by skidding those above clear bole parts together with the main log.The cost of skidding per m3 compared with 20 years ago was found to be three times higher. The cost skidding per m3 was about Rp. 3225,- at the averege distance of 3,16 hm.

KAJIAN FAKTOR EKSPLOITASI BERDASARKAN JENIS POHON : STUDI KASUS DI SATU PERUSAHAAN HPH DI KALIMANTAN BARAT (A study on Exploitation Factor in Forest Harvesting Based on Trees Species : A case study in one forest concession holder in West Kalimantan) Wesman Endom; Maman Mansyur Idris
Jurnal Penelitian Hasil Hutan Vol 14, No 1 (1996): 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.1996.14.1.16 – 23

Natural production forests in Indonesia have been harvested since 1970. In carrying out the harvesting of the forests, the goverment used a parameter so called Exploitation Factor (FE) as a basic calculation of annual allowable production. Currently the value of FE is 0. 7 regardless the species. The value means that only about 70% of log volume can be extracted from the forest in the cutting operation.In this study an analysis of FE was carried out to see whether it is necessary to differentiate the value based on tree species. Data were collected from real logging activity in the forest. An analysis using Honest by Significant Difference test showed that in reality there is no signifi cant difference among the means of FE. This result justifies the use of single value of FE for all species.Keywords: Forest, harvesting, logs, conversion factor.

KAJIAN PENGGUNAAN LAHAN HUTAN DAN PERUBAHANNYA MENGGUNAKAN DATA CITRA SPOT LANDSAT DAN RADAR Wesman Endom; Haryono Haryono
Jurnal Penelitian Hasil Hutan Vol 22, No 2 (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.2004.22.2.95-111

To enhance effectiveness of natural resources evaluation an assessment on the trend of land- use and its impacts is necessary. This is needed by regions which are interacted each others and covering large areas. A remote sensing technology is a reliable and appropriate choice for such area. A study on the land-use assessment was employed using manual method through the implementation of Spot, Landsats, and Radar imageries. The results were as follows:1) Until the year 1980, the concession area situated at Long Nah, administratively under authority of PT Inhutani I. East Kalimantan were mostly still covered by virgin forest with occasional and scattered small villages2) Manual interpretation using imageries of Spot, Landsats and Radars disclosed the following results: (a) Spot imageries turned out to be 64. 7% as the correct figure and 35.3% as the false figure;, (b) Landsat imageries interpreted 53.3% as correct and 46.7% as false; (c) Radar imageris conducted in March and April 1998 revealed 38. 1% as correct and 61.9% as false.3) Changes forest land-use during the period 1980-1998 occurred in low-land dry forest andpartly in swampy forest, which were further converted to the plantation forest. Meanwhile, the changes for other land-uses among others agriculture were almost insignificant ( less than 3%). This is because soil layers in the corresponding land were thin and acidic rendering unsuitable for agriculture activities.4) In order to reduce high commission error, the appropriate number of strata relevant to the land-use interpretation should not be too detailed but adequately established as simply aspossible.

PENGAMATA PENEBANGAN DAN PENGANGKUTAN SAGU DI DESA TANJUNG KECAMATAN TEBING TINGGI PROPSI RIAU Wesman Endom
Jurnal Penelitian Hasil Hutan Vol 10, No 6 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

ln indonesia Sago (Metroxylon sp) is one of the natural resources which is potenlally great enaugh for developing national income. The areas distribute over many places particularly in Irian. Jaya, Maluku, some parts of Sulawesi, Kalimantan and Sumatera, covering ± 6 00 000 ha.In Sumatera, sago grow in swampy area like South Sumatera, Jambi, Riau and Aceh. ln Riau the most famous producer sago area is Sab Districl of Tebing Tinggi of District Bengkalis . According to the last report of 1989, the total sago area in Sub District of Tebing tinggi is± 15 915 ha, and has producted sago of 156 500 ton.This paper discussing same aspects of technical harvesting of sago. which has preliminary observed in an area of the farmer as one of the sharing sago cooperation of Harmonis, that localed in Desa Tanjung. Sub District of Tebing Tinggi. Those aspects were felling, toping and branching and tranportalion with and addition of sago proccesing. The resul: showed that felling topping and branching and sago tranportation are carried out by group of felling operation wkich is consist of 6-8 men/group. the salary system is done by contract.The sagos are felled before flowering and each trees was cut wilh diameter ranged.from 49-64 cm and need ± 16,1 minutes/tree.the log then cutted after lopping and branching into 8-11 pieces depend on the tog length 1, 05-1 ,25 m/pieces. This pieces are called tual. Each tual then hauled using manual system as well as "nglebek" on a rail system of the wood. In average to haul of the distance ± 400 in from the felling site to sago industry was ± 30 minutes.The sago processing covered some aclivities of burking, slicing and flouring need± 4,5 minutes per tual. Therefore plus other delayed time with calculation 10 tual/tree, the total processing of one tree sago need 1 hour. The productivity of man power is able to finish of sago horvesting ± 1 tree/man. Using the wage of Rp. 400/tual, therefore the total salary is Rp, 4000/day.

Co-Authors Dadan Dadan Djoko Sumanto Dulsalam Dulsalam Haryono Haryono Hasan Basri Ishak Sumantri Maman M Idris Maman Mansyur Maman Mansyur Idris Marolop Sinaga Soenarno Soenarno Sofwan Bustomi Sona Suhartana Sukanda Sukanda Tjutju Nurhayati Yayan Sugilar Zakaria Basari

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