Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Hasil Hutan Jurnal Penelitian Hasil Hutan
Wesman Endom
Pusat Penelitian dan Pengembangan Hasil Hutan
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

Published : 48 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search
Journal : Jurnal Penelitian Hasil Hutan

 1   2   3 
ANALISIS PRODUKTIVITAS KERJA EKSTRAKSI KAYU DENGAN SISTEM KABEL LAYANG DALAM SISTEM TEBANG HABIS DI HUTAN JAWA TIMUR Zakaria Basari; Djoko Sumanto; Wesman Endom
Jurnal Penelitian Hasil Hutan Vol 15, No 3 (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.1997.15.3.169-189

Abstract

Salah satu sistem pengeluaran kayu bulat yang lebih produktif di dalam kegiatan pembalakan di daerah pegunungan adalah sistem kabel layang. Alat sistem kabel layang yang diteliti adalah jenis mesin yarder merek Isuzu berkekuatan 115 HP. Penelitian bertujuan untuk mengetahui produktivitas kerja.biaya ekstraksi dan aspek ekologis.Produktivitas kerja dilakukan dengan cara menghitung prestasi kerja per jalur, biaya ekstraksi kayu mencakup biaya kepemilikan alat per jam dan biaya operasi per jam , aspek ekologis menghitung dampak keterbukaan lantai permukaan hutan. Hasil pengamatan menunjukkan bahwa produktivitas kerja rata-rata 2.17 m3/jam atau 17.29 m3/hari dengan waktu kerja efektif 5,77 jam/hari. Biaya ekstraksi sebesar Rp 18,596/m3. Perusakan lapisan permukaan tanah sebesar 205,8 m2/ha atau hanya sebesar 1,75 %.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1995.13.6.231-245

Abstract

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

Abstract

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

Abstract

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.
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