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KEMUNGKINAN SUBTITUSI KAYU RAMIN (Gonystilus bancanus) DENGAN JENIS LAIN SEBAGAI PENGHARA PENGGERGAJIAN Sukanda Sukanda; M Usmanyah
Jurnal Penelitian Hasil Hutan Vol 9, No 5 (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.1991.9.5.201-206

Abstract

Forest harvesting on swampy  forests especially to  Ramin species in West Kalimantan has begun since 1958, consequently by now the forest potential of this species has decreased. The purpose of the  study is to evaluate a scoring system to tktel'mine the potential substitution of several wood speciesfor ramin which have similar ch,iracteristicsto Ramin in colour, textur, and other characterislia which .an considered importiint in wood utilization.                                                                                     .                                                          The result of this study showed that in West kalimantan it is estimated about 26 species have been used and have economic potential and in general dominated by family of diptecarpaceaein dry  land forest and Ramin in swampy forest. Using the scoring system, from 25 species of non Romin .it  wcu found  that there are 9 species which have simUarcharacteristicsto Ramin , namely, Cengal (Hope& sangal Korth.), Kayu Cina (Prodocarpus motlcyi  Dummer), Jelutung (Dyera  constulata   Hook.f},  Medang (Litsea  sp.), Meranliputih (Shorca  sp.), Mentibu (Dactylocladus stenoctachvs Oliv.), Perup•k (LOphopethallumpachylhyllum King), Pisang-pisang(Mezzettia parviv~oraBecc.) and Pulai (Alstonia scholaris'R.Br.). 
EVALUASI LOGGING TRUK BERDASUKAN UMUR PAKAI, PRODUKTMTAS DAN BIAYAANGKUTAN Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 9, No 6 (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.1991.9.6.247-250

Abstract

In mMy forest coneuions  today, old loggin1 truelu of j   - 9 yean old ore. being med.  Thae  truda  will be continuo,ly uud  "'  long,a  ,,,,,,p,a.ra  ore available Md the equipment can be repaired. TM result, ore low productivit) ..ind laigla co,t.An obsnvotion in the field on 9 and 2-yeor old logging trucks in <AntralKalimantan ,ltow,  Ilse folli>winf   ruultJ  :1.For logging truclc condition o/9-year old, effecti11e working lime if 63 9' and productivity if  10,921m'lyeor wlsiela t1re loWff' .,,.,,,. tluJu.     for logging truck of 2-year old wills effective working hour of 80,5 9' and producti11ilyof 18,678 m.~lyeor.2.Rawling wills lo1ging truck of 9-yeor old if  more ·upensiH  than that of logging. truck of 2-yeor old, _Le  : Rp 4,940lm'l5o 1cm  (  Rp99lm3/lcm) Md  Rp 4,360/m3150 lcm ( Rp 87/m3/lcm), rup«tively  which mean, the dilferenee of $80/m3/$0 km  ( Rp 12/m3ilcm ).3. Due to large amount of maintenance cost, upeciaUy spare part cost than reached 54 9' of tM total cost, the 9-yeor old loainl   trucluore not ef/ieknt_ ~ymore and, dstre/ore, need to be replaced.
STUDI KASUS PRODUKTIVITAS DAN BIAYA ANGKUTAN DENGAN TRUK ISUZU DI DUA HAK PENGUSAHAAN HUTAN DI SUMATRA BARAT Dulsalam Dulsalam; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 6, No 1 (1989): 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.1989.6.1.6 -11.

Abstract

A  study   on  productivity  and  operating   cost  of  Isuzu   TWD  20  (1979 model)   trucks  has been  carried .,out at  two forest   companies   in  West  Sumatra.   The  result  shows   that  :                                                                                                                                                                    1. The average hauling productivity  at PT  Ragusa  Ltd  and PT Pasar Besar is 113  m3  km/hour   and  211  m   km/hour,respectively.2. The  average operating cost  at PT  Ragusa Ltd  and Pasar  Besar is respectiuely  Rp.  93,-/m3    km  and Rp.  57,   /m3    km.
CARA PENGUSAHAAN HUTAN NIPAH (Nypa pructicans) DI BATU AMPAR KALIMANTAN BARAT Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 13, No 4 (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.1995.13.4.153-161

Abstract

Nipah (Nypa fructicans) is a species of the Palmae family which grows on swampy areas, coastal mid along bankriver. It is commonly known that the tree is able to produce so called nira (fruits) which can be used for sweety material.The utilization and development of wild nypa forest as sweety material has been done by PT Milatronika Karya Nypah Indonesia in Sponti Jaya nypa forest, Sub District of Batu Ampar, Pontianak. In order to produce some amount of nira from nypa, tending and special care particularly to the fruit stems are required. The nira processed into redish sugar, ant sugar, cristle sugar, acid and fresh drinking water is obtained through cutting of the fruit stem.The red fructosa of nira has a composition as follows : sucrose 83, 67 %, reduction sugar2.72 %, total sugar 90,57 %, carbon 4,57 % and The rest in the form of parfume (nipa specific).the other benefits of nypa forest utilization are to create employment and regional development.
PRESTASI PENGEMUDI TRUK ANGKUTAN DI SUATU PENGUSAHAAN HUTAN DI KALIMANTAN BARAT Dulsalam Dulsalam; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 6, No 7 (1990): 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.1990.6.7.420-425

Abstract

An investigation on  logging truck  drivers performances was carried out at a  logging company  in West Kalimantan in 1988. Seven  logging truck  drivers were observed  using seven Nissan TZ 50 semi-trailer  logging trucks  (made in 1979). The  purpose of  this  investigation is to  find  out logging truck  drivers performances necessary for logging companies to plan their employment in hauling activity. For  this purpose, the  investigation   was done through work  time study. The investigation comes  to  the  following conclusions   : PT  Duadja  II  employs   several  logging  truck  drivers  having  various skills. Nissan  TZ  50 semi-trailer logging trucks are used  to  transport  logs from the forest  to  log pond.Average  performances of  A, B, C, D, E, F, and  G logging  truck  drivers  were 765.79,   695.85, 652.56, 843.31, 745.07, 709.20,  and  759.18 m3km/hour, respectively.The performances  among  logging truck  drivers  were  significantly different due  to  the  differences in load volumes and logging truck speeds as well as drivers' age and education  levels.
KAJIAN PENGELUARAN DAN PEMUATAN KAYU DENGAN ALAT EXPO-2000 YANG DISEMPURNAKAN Wesman Endom; Sukanda Sukanda; Yayan Sugilar; Hasan Basri
Jurnal Penelitian Hasil Hutan Vol 24, No 5 (2006): 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.2006.24.5.449-461

Abstract

Dalam upaya mengatasi kesulitan mengumpulkan kayu-kayu hasil tebangan di daerah curam dengan cara manual, diperlukan terobosan berupa penyediaan alat ekstraksi kayu yang tidak mahal, mudah dioperasikan, produktif dengan biaya operasi dan perawatan rendah. Sesuai dengan harapan itu dilakukan kegiatan penelitian uji coba pengumpulan kayu dan muat bongkar dengan menggunakan hasil rekayasa alat Expo-2000 di daerah hutan Resort Polisi Hutan (RPH) Ciguha, Kesatuan Pemangkuan Hutan (KPH) Sukabumi, Jawa Barat.Produktivitas yang dicapai dengan dilakukannya penyempurnaan berupa penambahan endless drum diperoleh hasil sebesar 5 m3.hm/jam dan untuk muat/bongkar 50 m3.m/jam. Dengan biaya investasi sebesar Rp 100 juta, maka dengan biaya pemilikan dan pengoperasian alat berdasarkan perhitungan adalah sebesar Rp 60.175 per jam, sehingga biaya pengumpulan dan  pemuatan  kayu  secara  berurutan  masing-masing  adalah  Rp 12.305  per m3.hm dan Rp 1.135 per m3.m.  Biaya ini jelas lebih efektif dan efisien dibanding cara konvensional yang besarnya mencapai masing-masing secara berurutan Rp 35.000 dan Rp 15.000 per m3 .
PENGARUH JARAK SARAD DAN VOLUME KAYU YANG DISARAD TERHADAP PRODUKTIVITAS TRAKTOR PENYARADAN Dulsalam Dulsalam; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 8, No 3 (1990): 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.1990.8.3.83 - 87

Abstract

An inveatigation on the effect of alcidding diatance and •kidded log volume on the productivity of kidding tractor um carrkd  out at a forest company in Jambi in 1986. Caterpillar D1 G trac~ors were elected randomly and their working time and skidded log volume were obaervedthrough work time atudy. The purpoH  of thia invatigation ia to find  out the effect of kidding  diatance and skidded log volume on the productivity   of kidding  tractors. The invati1Qtion  coma  to the fotlOwing concluaioru.                              1.  The owrace of skidding diatance wa  8.24 hm with  standard error of  0.2tJ66 hm while  the average of idded log volume IDOi  9.08 m8 with. 0.3173 m3 atandard error.                                                                     J.  The a~        productivity of skidding  tractor  waa  92.09 m8 hm/hour  with  atandard error of  6.8406 m8 hm/hour.3. The Niationahip  between tractor productivity   (Y)  and •kidding  diatance (X 1) and kidded  log volur.ne (X2) can beupraaed   in the li~       r.nultipie Ngreuion: Y   -   48.1670 + 16.0704X1   + 9.6176 Xa with R2 •  0.71604. The effects of  kidding  diatanca  and •kidded  log . voluma  on the productivity of •kidding  tracton  are aigniffcant.TM  tractor productivity   increaaedproportionaUy  when the •kidding. diatance and •kidded• log volume increaed. It  therefore recommended to make the •kidded loga as long as poaible  GI  far  GI   the tractor can handle.
FAKTOR KOREKSI VOLUME DOLOK YANG DIUKUR DI SUNGAI (LOGPOND) (Correction factor of logs volume meaured in logpond) Wesman Endom; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 11, No 4 (1993): 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.1993.11.4.163-167

Abstract

Measuring the volume of logs which have been rafted on the rivers is very difficult. The difficulty is mostly in measuring the average top and bottom diameters of logs because the largest portion of logs are inside the water.In this paper, the results of measurements carried out both on the ground and in the river are described. Lately, log measurement in the river is necessary because:a. Volume of logs sent to industries would be measured in the river.b. Many logs of the illegal cutting found are rafted in the river.The observation reveals that :1. Volumes of logs measured on the ground and in the river are significantly different.2. From the sample of 60 logs of Dryobalanops spp. it is found that the total volume measured on the ground is 273,18 m3, while the total volume measured in the river is 262, 76 m3. The total difference is 10,42 m3 or 0,04 m3 per_m3 in average.3. the correction factor (FK) then is 0,04 m3 per m3 or 3,81 %. It means that the volume of log measured in the river is smaller than the volume Measured on the ground. Therefore, the volume measured in the river should be multiplied with the correction factor of 1.04 to obtain the real volume as measured on the ground.
KERUSAKAN TEGANGAN TINGGAL AKIBAT PENYARADAN DENGAN TRAKTOR PADA BERBAGAI TINGKAT KERAPATAN TEGAKAN Dulsalam Dulsalam; Sukanda Sukanda; Ishak Sumantri
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): 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.1989.6.6.349-352

Abstract

An  investigation   on  residual   stand  damages  caused  by skidding  tractor  on several stand  density   levels was carried out  at PT Sumpol   Timber  in South  Kalimantan  in 1987.  Forty   five  sample plots  were selected  randomly  in this research. The purpose   is to gather  information   about  the resdiual stand damages caused by skidding  tractor on several stand density levels.   The  result  of  investigation   reveals that  :                                                                                                                                                                                              1.  The number    of  trees  having   diameter   of  20  cm  and  up  varies   from  80   to  300  trees/ha  with  an  average of  190.22 trees/ha.                                                                                                                                               2.  The  residual stand  damages  for  the  area with  stand  densities  ot < 150,  150 -199,   and >  200  trees/ha  were 16,  7, 28.3,and  39. 0 trees/ha,  respectively.   They  are significantly   different.3.  It  is suggested  that   the  skidding   operations,    especially   in  high  stand  density   levels, be done  with  better  planning   in-order  to save powers,  costs  and  resources.
PRODUKTIVITAS TRAKTOR CATERPILLAR D7G DI SUATU PERUSAHAAN HAK PENGUSAHAAN HUTAN DI JAMBI Dulsalam Dulsalam; Sukanda Sukanda
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): 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.1989.6.6.368-372

Abstract

An  investigation   on  the  productivity  of  D7G  Caterpillar  tractors  was carried out  at a  forest  company   in Jambi  in 1985.   Three  tractors  were  selected   randomly   to  be  observed.   The productivity  of  these  tractors  was collected   through work   time  study.   The  purpose   is  to  find   the productivities   of  D7G  Caterpillar  tractors  so  that this  information   can  be used  by  forest  companies   in planning  skidding  operations.   This  investigation   results  reveal  that  : 1.  D7G  Caterpillar  tractors  can be used to skid  logs at dryland  forests  having easy and moderate topographies.  At  skidding distances  ranuine from   75 -   535  m  with  an average of 324  m these tractors can skid  logs having volumes  ranging from 5.01 -   16.88  m3/trip   with  an average of 9.08   m3/trip.2.  The  average productivities    of  A,  B and   C skidding   tractors  were  59.22,   89.81 and 123.69   m8.   hm/hour,  respectively.The  productivities    among  tractors  were significantly   different  due  to different skidding  distances,   tractor  conditions, driver  skills,  average stund   volume  per  ha,   soil conditions,   skidded   log volume  and  topography.   The  average produc- tivity  of  the  three  tractors  was  92.09   m3 hm/hour.
Co-Authors Dulsalam Dulsalam Hasan Basri Ishak Sumantri M Usmanyah Wesman Endom Yayan Sugilar