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

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MENDUGA POTENSI PRODUKSI KAYU BULAT DARI HUTAN KALIMANTAN TIMUR MENGGUNAKAN METODE PENDUGAAN NISBAH DAN PENDUGAAN REGRESI Han Roliadi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3392.735 KB) | DOI: 10.20886/jphh.1985.2.3.15-18

Abstract

For predicting   the roundwood   potential   in the  forest  region  of  East Kalimantan, roughly  two  kinds  of data are required.  These includes sample  data and population   data.  Sample  data collected are the area or size of several selected  forest region  and  the volume  of  the  corresponding   roundwood   production,    while population   data  include  the  total  forest  area of  East  Kalimantan.The prediction methods  applied are ratio estimate  and regression estimate. Using ratio estimate, the volume  of roundwood  production   potential  predicted was 8 093 575  cu.m  (7 032  723  to 9  154  427  cu.m).   On the other  hand,  with  the application of  regression  estimate, the  uolume  of  roundwood  production   potential   was 8 505  603  cu.m.   (7 889  057  to 9 122 149  cu.m.).Examination of  the  residuals indicated that  assumption of  normality of  data was satisfied
PENDUGAAN BESARNYA LIMBAH INDUSTRI PERKAYUAN DI KALIMANTAN SELATAN DAN KEMUNGKINAN PEMANFAATANNYA SEBAGAI SUMBER ENERGI Han Roliadi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3765.139 KB) | DOI: 10.20886/jphh.1985.2.3.23-26

Abstract

The  volume  of  wood  waste from  sawmills and plywood mills in South  Kalimantan  was estimated  using the regression method. Data  were  collected   from sample mills  in the province.       Based on  the  regression analysis,  the estimated volume  of  sawmill waste generated by sawmills in South Kalimantan during the 1981 - 1982 period  was 684,353 m3 per year, and that of plywood mill was 221,818 m3 per year.       The total wood  waste could produced heat energy (fuel) as much as 12.29  x 1011k.cal/year, or 5.42 x 109 KWH per year  of  electric  energy.
ANALISIS PERMINTAAN KAYU LAPIS DI JAWA Satria Astana; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): 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.1986.3.2.14-18

Abstract

One of  the main  important things for  the planning  of production and marketing  development is the demand informations. This research was conducted to analyse the aggregate demand  of plywood  in the districts of Java and its determining  factors.  The result of this research revealed that the aggregate demand  of plywood  in the districts of Java ranged from 679. 731 m3 to 1741.841  m3. The number of people  and the gross domestic regional income in the districts determine  the aggregate demand  of plywood significantly.  The elasticity  of the number of people  is 0.12  and the gross domestic  regional income  is 0.16. In addition,  this research found  that the distribution  of its consumption  consisted  of 60. 02% of the households,  25.22%  of the building contractors,  10.97%  of the furniture  craft industries and  3. 79% of the car body craft industries. 
EFISIENSI TATANIAGA EKSPOR BIJI TENGKAWANG DARI KALIMANTAN BARAT Satria Astana; Subandi Antaatmaja; Rachman Effendi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 4, No 2 (1987): 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.1987.4.2.1-9

Abstract

Efficiency  of marketing  system has an important  role in supply and demand  balance.  It could be indicated by the marketing margin. A lower marketing  margin  would  mean  lower prices  to consumers, higher prices  to producers,  and a greater quantity  of  the good  exchange.The marketing system for illipe-nuts export from West Kalimantan has two main channels,  intermediate  sellers and exporters. The price spread analysis reveals that the marketing system  mechanism  is inefficient. The farmer margin is 45.83%  and  the marketing  margin is 54.17%  of the export price. The marketing margin consists of 32.27% of profit (and risk) margin and 21.90% of marketing  cost.  The biggest marketing cost is on the intermediate  seller (12.50%). However,  the highest margin for  profit  (and risk) is on the exporter  (19.76%);   the margin for  profit  (and risk) for  the intermediate  seller is 12.5%  and  the marketing  cost for the exporter  is 9.40%..In the marketing system, the farmer's earning is 17.01% of  the production cost  when poor  harvest; the production cost  is Rp. 64276.38 includes 58.41% of accomodation costs, 35.99%  of transportation   costs and 5.60%  of  tool  costs. In the rich harvest,  the farmer's earning  is estimated  at 30.0%  of the production  cost under the assumption  that the decreasing of the price due to the production   increases is about  18%. If inefficiency of  the marketing  system  can be overcomed, the farmer's earning both  in the poor and rich harvests  will be able to increase.
MENDUGA POTENSI PRODUKSI KAYU BULAT DARI HUTAN KALIMANTAN TIMUR MENGGUNAKAN METODE PENDUGAAN NISBAH DAN PENDUGAAN REGRESI Han Roliadi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3392.735 KB) | DOI: 10.20886/jphh.1985.2.3.15-18

Abstract

For predicting   the roundwood   potential   in the  forest  region  of  East Kalimantan, roughly  two  kinds  of data are required.  These includes sample  data and population   data.  Sample  data collected are the area or size of several selected  forest region  and  the volume  of  the  corresponding   roundwood   production,    while population   data  include  the  total  forest  area of  East  Kalimantan.The prediction methods  applied are ratio estimate  and regression estimate. Using ratio estimate, the volume  of roundwood  production   potential  predicted was 8 093 575  cu.m  (7 032  723  to 9  154  427  cu.m).   On the other  hand,  with  the application of  regression  estimate, the  uolume  of  roundwood  production   potential   was 8 505  603  cu.m.   (7 889  057  to 9 122 149  cu.m.).Examination of  the  residuals indicated that  assumption of  normality of  data was satisfied
PENDUGAAN BESARNYA LIMBAH INDUSTRI PERKAYUAN DI KALIMANTAN SELATAN DAN KEMUNGKINAN PEMANFAATANNYA SEBAGAI SUMBER ENERGI Han Roliadi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): 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.1985.2.3.23-26

Abstract

The  volume  of  wood  waste from  sawmills and plywood mills in South  Kalimantan  was estimated  using the regression method. Data  were  collected   from sample mills  in the province.       Based on  the  regression analysis,  the estimated volume  of  sawmill waste generated by sawmills in South Kalimantan during the 1981 - 1982 period  was 684,353 m3 per year, and that of plywood mill was 221,818 m3 per year.       The total wood  waste could produced heat energy (fuel) as much as 12.29  x 1011k.cal/year, or 5.42 x 109 KWH per year  of  electric  energy.
ANALISIS PERMINTAAN KAYU LAPIS DI JAWA Satria Astana; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): 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.1986.3.2.14-18

Abstract

One of  the main  important things for  the planning  of production and marketing  development is the demand informations. This research was conducted to analyse the aggregate demand  of plywood  in the districts of Java and its determining  factors.  The result of this research revealed that the aggregate demand  of plywood  in the districts of Java ranged from 679. 731 m3 to 1741.841  m3. The number of people  and the gross domestic regional income in the districts determine  the aggregate demand  of plywood significantly.  The elasticity  of the number of people  is 0.12  and the gross domestic  regional income  is 0.16. In addition,  this research found  that the distribution  of its consumption  consisted  of 60. 02% of the households,  25.22%  of the building contractors,  10.97%  of the furniture  craft industries and  3. 79% of the car body craft industries. 
EFISIENSI TATANIAGA EKSPOR BIJI TENGKAWANG DARI KALIMANTAN BARAT Satria Astana; Subandi Antaatmaja; Rachman Effendi; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 4, No 2 (1987): 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.1987.4.2.1-9

Abstract

Efficiency  of marketing  system has an important  role in supply and demand  balance.  It could be indicated by the marketing margin. A lower marketing  margin  would  mean  lower prices  to consumers, higher prices  to producers,  and a greater quantity  of  the good  exchange.The marketing system for illipe-nuts export from West Kalimantan has two main channels,  intermediate  sellers and exporters. The price spread analysis reveals that the marketing system  mechanism  is inefficient. The farmer margin is 45.83%  and  the marketing  margin is 54.17%  of the export price. The marketing margin consists of 32.27% of profit (and risk) margin and 21.90% of marketing  cost.  The biggest marketing cost is on the intermediate  seller (12.50%). However,  the highest margin for  profit  (and risk) is on the exporter  (19.76%);   the margin for  profit  (and risk) for  the intermediate  seller is 12.5%  and  the marketing  cost for the exporter  is 9.40%..In the marketing system, the farmer's earning is 17.01% of  the production cost  when poor  harvest; the production cost  is Rp. 64276.38 includes 58.41% of accomodation costs, 35.99%  of transportation   costs and 5.60%  of  tool  costs. In the rich harvest,  the farmer's earning  is estimated  at 30.0%  of the production  cost under the assumption  that the decreasing of the price due to the production   increases is about  18%. If inefficiency of  the marketing  system  can be overcomed, the farmer's earning both  in the poor and rich harvests  will be able to increase.
Co-Authors Han Roliadi Rachman Effendi Satria Astana Subandi Antaatmaja